feat(permission): user-facing permission presets — one Permissions select over the two knobs

A preset names a bundle of the two mechanism knobs — request =
workspace-write + ask, yolo = danger-full-access + never — so the editor
shows ONE 'Permissions' select where the sandbox-mode and approval-policy
tiers stay orthogonal capabilities (the Codex /approvals shape: presets over
two dials). ctx.permission (dsh-permission) owns the config-defined table,
validates the default preset's bundle against the composed knob defaults at
load (fails loud), and writes a switch THROUGH: one log-only
permission/preset event (the audit fact reverse-mapping cannot recover —
the planned 'agent' preset shares request's knob values and differs only in
composed policy) plus each knob event via its own setter, deduped — a
net-zero switch appends nothing. Every knob consumer keeps reading its own
fold, untouched.

The current preset DERIVES from the effective knob values — the fold breaks
bundle ties, a knob state outside the table is the reserved 'custom' value
(a state, not an error: shown while it holds, switchable FROM, never a
target), and defaultPreset disappears (zero-event state reverse-maps from
the composition defaults).

The ACP bridge drops the two per-knob selects for the one preset select
(advertised only when ctx.permission is composed); pending/anchor/no-op
semantics carry over unchanged, with the no-op echo acknowledged before
vocabulary validation so a client re-pushing a derived 'custom' current
never errors. The sandbox variant example composes the
service with a workspace-write default; the permission-switching,
escalation-approved and escalation-rejected scenarios are re-recorded under
it (escalations now target an outside-workspace /tmp path under
danger-full-access, self-cleaning) and config-options is re-authored on the
single-select wire.

docs/capability-seams.md

@@ -56,6 +56,8 @@ flowchart LR
   pkg_sandbox_local["sandbox-local"]
   pkg_approval["approval"]
   svc_approval["ctx.approval<br/>Approval seam"]
+  pkg_permission["permission"]
+  svc_permission["ctx.permission<br/>Permission presets"]
   pkg_code_runtime["code-runtime"]
   svc_codeRuntime["ctx.codeRuntime<br/>Code-execution seam"]
   pkg_code_runtime_worker["code-runtime-worker"]
@@ -99,6 +101,7 @@ flowchart LR
   pkg_llm_deepseek --> svc_llm
   pkg_llm_pi_ai --> svc_llm
   pkg_llm_replay --> svc_llm
+  pkg_permission --> svc_permission
   pkg_sandbox --> svc_sandbox
   pkg_sandbox_local --> svc_sandbox
   pkg_session --> svc_sessions
@@ -139,6 +142,7 @@ flowchart LR
   svc_fs --> pkg_tool_fs
   svc_llm --> pkg_agent_loop
   svc_llm --> pkg_compact_basic
+  svc_permission --> pkg_acp
   svc_sandbox --> pkg_bash_sandbox
   svc_sessionPersistence --> pkg_acp
   svc_sessionPersistence --> pkg_agent_loop
@@ -185,6 +189,7 @@ flowchart LR
 | `ctx.bash` | `seam` | [`bash`](../packages/bash/bash) | [`bash-local`](../packages/bash/bash-local), [`bash-sandbox`](../packages/bash/bash-sandbox) | [`tool-bash`](../packages/bash/tool-bash), [`hooks-claude`](../packages/hooks/hooks-claude), [`hooks-codex`](../packages/hooks/hooks-codex) | - | The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors replace bash-local without touching them. |
 | `ctx.sandbox` | `seam` | [`sandbox`](../packages/sandbox/sandbox) | [`sandbox-local`](../packages/sandbox/sandbox-local) | [`bash-sandbox`](../packages/bash/bash-sandbox) | - | Consumers hand over the exact argv they are about to spawn; same-world backends wrap it under a per-call policy and report enforcement. |
 | `ctx.approval` | `seam` | `approval` | [`acp`](../packages/ui/acp) | [`tools`](../packages/core/tools), [`tool-bash`](../packages/bash/tool-bash) | - | One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`. |
+| `ctx.permission` | `core` | [`permission`](../packages/ui/permission) | - | [`acp`](../packages/ui/acp) | - | User-facing preset table (request/yolo) bundling the sandbox-mode and approval-policy knobs; a switch writes one `permission/preset` event through to both knob events. |
 | `ctx.codeRuntime` | `seam` | [`code-runtime`](../packages/code-runtime/code-runtime) | [`code-runtime-worker`](../packages/code-runtime/code-runtime-worker) | [`tools`](../packages/core/tools) | - | Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the tool registry consumes it for Code Mode). |
 | `ctx.fs` | `seam` | [`fs`](../packages/fs/fs) | [`fs-local`](../packages/fs/fs-local) | [`tool-fs`](../packages/fs/tool-fs) | [`fs-policy`](../packages/fs/fs-policy) | tool-fs executes read/write/edit through ctx.fs; fs-policy contributes observed-state checks through the fs/* event gate. |
 | `ctx.compact` | `seam` | [`compact`](../packages/compact/compact) | [`compact-basic`](../packages/compact/compact-basic) | [`compact-basic`](../packages/compact/compact-basic) | - | The basic backend currently consumes the pre-step event directly; a model-facing compact tool remains deferred. |

docs/config-catalog.md

@@ -31,7 +31,7 @@ export interface AcpConfig {
 
 Depends on: `Stream` (`@agentclientprotocol/sdk`)
 
-Source: [`packages/ui/acp/src/index.ts:248`](../packages/ui/acp/src/index.ts)
+Source: [`packages/ui/acp/src/index.ts:246`](../packages/ui/acp/src/index.ts)
 
 ## `@deepseek-ai/dsh-acp-agent`
 
@@ -408,6 +408,41 @@ export interface Config {
 
 Source: [`packages/support/llm-replay/src/index.ts:429`](../packages/support/llm-replay/src/index.ts)
 
+## `@deepseek-ai/dsh-permission`
+
+Requires: `bash` · `approval`
+
+```ts config-catalog
+/** The {@link PermissionService} config: the deployment's preset table. */
+export interface Config {
+  /**
+   * The preset table: name → knob bundle. Defaults to `request`
+   * (workspace-write + ask) and `yolo` (danger-full-access + never). The
+   * name `custom` is reserved for the derived not-a-preset state.
+   */
+  presets?: Record<string, PresetSpec>
+}
+
+/**
+ * One preset's knob bundle — the sandbox mode and approval policy a session
+ * runs under while the preset is active — plus its presentation.
+ */
+export interface PresetSpec {
+  /** The `bash/sandbox-mode` value the preset writes through. */
+  sandbox: SandboxMode
+  /** The `approval/policy` value the preset writes through. */
+  approval: ApprovalPolicy
+  /** The display label a client shows for this preset; the raw table key when omitted. */
+  name?: string
+  /** One user-facing sentence on what the preset means; omitted when not configured. */
+  description?: string
+}
+```
+
+Depends on: [`ApprovalPolicy`](core-data-structures/approval.md) · [`SandboxMode`](core-data-structures/sandbox.md)
+
+Source: [`packages/ui/permission/src/index.ts:97`](../packages/ui/permission/src/index.ts)
+
 ## `@deepseek-ai/dsh-repeat-tool-guard`
 
 ```ts config-catalog

docs/cordis-catalog/services.md

@@ -161,6 +161,21 @@ Types: [GenerateOptions](../core-data-structures/core.md) · [StreamChunk](../co
 
 Source: [`packages/llm/llm/src/index.ts:88`](../../packages/llm/llm/src/index.ts)
 
+## `ctx.permission` — `PermissionService`
+
+The permission service (`ctx.permission`). Owns the deployment's preset table and THE write path for preset switches; presentation layers (the ACP bridge's single `Permissions` select) advertise names and call set. Composing it REQUIRES both mechanism knobs — a confining `ctx.bash` executor and the `ctx.approval` seam. A knob state matching no table entry is not an error but the derived CUSTOM_PRESET state: shown as the current value, never a switch target.
+
+```ts cordis-catalog
+current(events: readonly SessionEvent[]): string
+resolve(name: string): PresetSpec
+optionOf(name: string): PresetOption
+set(session: Session, name: string): void
+```
+
+Types: [SessionEvent](../core-data-structures/core.md)
+
+Source: [`packages/ui/permission/src/index.ts:115`](../../packages/ui/permission/src/index.ts)
+
 ## `ctx.sandbox` — `SandboxProvider` (abstract seam)
 
 Abstract process-sandbox service. Subclass, implement confine, and load the subclass as a plugin — it registers as `ctx.sandbox` (one implementation per context; loading a second throws, cordis' standard duplicate-service behavior).

docs/module-graph.md

@@ -92,6 +92,7 @@ flowchart TD
     pkg_acp["acp"]
     pkg_acp_agent["acp-agent"]
     pkg_app_boot["app-boot"]
+    pkg_permission["permission"]
     pkg_stdio_agent["stdio-agent"]
     pkg_tool_ask_user["tool-ask-user"]
     pkg_user_approval["user-approval"]
@@ -187,6 +188,10 @@ flowchart TD
   pkg_bash_sandbox --> pkg_bash
   pkg_bash_sandbox --> pkg_bash_local
   pkg_bash_sandbox --> pkg_sandbox
+  pkg_permission --> pkg_bash
+  pkg_permission --> pkg_sandbox
+  pkg_permission --> pkg_session
+  pkg_permission --> pkg_user_approval
   pkg_agent_loop --> pkg_agent
   pkg_agent_loop --> pkg_llm
   pkg_agent_loop --> pkg_scope
@@ -234,6 +239,7 @@ flowchart TD
   pkg_acp --> pkg_agent
   pkg_acp --> pkg_bash
   pkg_acp --> pkg_llm
+  pkg_acp --> pkg_permission
   pkg_acp --> pkg_sandbox
   pkg_acp --> pkg_session
   pkg_acp --> pkg_session_persistence
@@ -357,6 +363,7 @@ flowchart TD
 | [`workflow`](../packages/workflow/workflow) | `workflow` | [`agent`](../packages/core/agent), [`brand`](../packages/util/brand), [`llm`](../packages/llm/llm) |
 | [`tools`](../packages/core/tools) | `core` | [`agent`](../packages/core/agent), [`code-runtime`](../packages/code-runtime/code-runtime), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`user-approval`](../packages/ui/user-approval) |
 | [`bash-sandbox`](../packages/bash/bash-sandbox) | `bash` | [`bash`](../packages/bash/bash), [`bash-local`](../packages/bash/bash-local), [`sandbox`](../packages/sandbox/sandbox) |
+| [`permission`](../packages/ui/permission) | `ui` | [`bash`](../packages/bash/bash), [`sandbox`](../packages/sandbox/sandbox), [`session`](../packages/core/session), [`user-approval`](../packages/ui/user-approval) |
 | [`agent-loop`](../packages/core/agent-loop) | `core` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) |
 | [`tool-bash`](../packages/bash/tool-bash) | `bash` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`user-approval`](../packages/ui/user-approval) |
 | [`tool-fs`](../packages/fs/tool-fs) | `fs` | [`fs`](../packages/fs/fs), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools) |
@@ -367,7 +374,7 @@ flowchart TD
 | [`tool-todo`](../packages/todo/tool-todo) | `todo` | [`agent`](../packages/core/agent), [`session`](../packages/core/session), [`tools`](../packages/core/tools) |
 | [`tool-cordis`](../packages/cordis/tool-cordis) | `cordis` | [`scope`](../packages/core/scope), [`tools`](../packages/core/tools) |
 | [`hooks-codex`](../packages/hooks/hooks-codex) | `hooks` | [`agent`](../packages/core/agent), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm`](../packages/llm/llm), [`session`](../packages/core/session), [`tools`](../packages/core/tools) |
-| [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`sandbox`](../packages/sandbox/sandbox), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools), [`user-approval`](../packages/ui/user-approval), [`user-interaction`](../packages/ui/user-interaction) |
+| [`acp`](../packages/ui/acp) | `ui` | [`agent`](../packages/core/agent), [`bash`](../packages/bash/bash), [`llm`](../packages/llm/llm), [`permission`](../packages/ui/permission), [`sandbox`](../packages/sandbox/sandbox), [`session`](../packages/core/session), [`session-persistence`](../packages/session-persistence/session-persistence), [`tools`](../packages/core/tools), [`user-approval`](../packages/ui/user-approval), [`user-interaction`](../packages/ui/user-interaction) |
 | [`tool-ask-user`](../packages/ui/tool-ask-user) | `ui` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools), [`user-interaction`](../packages/ui/user-interaction) |
 | [`repeat-tool-guard`](../packages/guard/repeat-tool-guard) | `guard` | [`agent`](../packages/core/agent), [`tools`](../packages/core/tools) |
 | [`tool-workflow`](../packages/workflow/tool-workflow) | `workflow` | [`agent`](../packages/core/agent), [`llm`](../packages/llm/llm), [`system-prompt`](../packages/core/system-prompt), [`tools`](../packages/core/tools), [`workflow`](../packages/workflow/workflow) |

docs/persistence-catalog.md

@@ -153,6 +153,18 @@ A hook command's outcome — log-only, paired with a prior `hook/invoked` (same
 
 Source: [`packages/hooks/hook-protocol/src/types.ts:45`](../packages/hooks/hook-protocol/src/types.ts)
 
+### `permission/*`
+
+#### `permission/preset` — log-only
+
+The session's permission preset was switched — log-only (the `bash/sandbox-mode` precedent): durable and replayable, never in the model transcript. The LAST such event is the session's preset (effectivePermissionPreset); the knob events the switch wrote through follow it in the same turn, and they — not this record of the user's choice — are what execution reads.
+
+```ts persistence-catalog
+'permission/preset': { preset: string }
+```
+
+Source: [`packages/ui/permission/src/index.ts:42`](../packages/ui/permission/src/index.ts)
+
 ### `prompt/*`
 
 #### `prompt/blocked` — log-only

docs/rfc/implemented/feature/2026-07-06-sandbox.md

@@ -34,7 +34,7 @@ The swap is invisible to every consumer of `ctx.bash`: the bash tools, hook comm
 
 Misconfiguration fails loud: `mode` outside the closed vocabulary is rejected at plugin load, and a host with no usable backend throws the structured `SANDBOX_UNAVAILABLE` — at `confine()` before the command ever spawns — rather than degrading to unconfined execution. `runnerCommand` on `dsh-sandbox-local` is the operator's explicit assertion of a bwrap-compatible runner (chain and probes skipped); it doubles as the deterministic fake-runner seam for keyless tests.
 
-What the model then experiences: denied file effects come back as result facts with a `[sandbox: file access denied under <mode> mode]` marker plus standing instructions not to retry around them; under a confining executor the schema offers `sandbox_permissions` + `justification` for the one-approval escalated retry (validated strictly wider than the session's effective mode at execution); the system prompt deliberately does NOT state the sandbox mode — the model learns the boundary from the marker (which names the mode) when it hits it, instead of preemptively refusing work a standing declaration discourages. What an ACP editor experiences: a `sandbox-mode` and an `approval-policy` config-option select per session (each advertised only when its knob is composable), switchable at runtime; a sandbox switch simply changes what subsequent commands may do, while an approval-policy switch to `'never'` is stated in the prompt and narrated.
+What the model then experiences: denied file effects come back as result facts with a `[sandbox: file access denied under <mode> mode]` marker plus standing instructions not to retry around them; under a confining executor the schema offers `sandbox_permissions` + `justification` for the one-approval escalated retry (validated strictly wider than the session's effective mode at execution); the system prompt deliberately does NOT state the sandbox mode — the model learns the boundary from the marker (which names the mode) when it hits it, instead of preemptively refusing work a standing declaration discourages. What an ACP editor experiences: one `Permissions` config-option select per session (advertised when the `dsh-permission` preset layer is composed; each preset bundles a sandbox mode and an approval policy and writes through to both knob events — a knob state outside the table derives a switch-away-only `custom` current), switchable at runtime; a sandbox switch simply changes what subsequent commands may do, while an approval-policy switch to `'never'` is stated in the prompt and narrated.
 
 The product path, concretely (the escalation arc is verbatim from the recorded `escalation-approved` scenario; the denial leg is pinned on the real-kernel e2e tier):
 
@@ -57,7 +57,7 @@ Reject instead and nothing executes: the result is the verbatim `the user reject
 - Everything else executes inside the harness process (fs is in-process `node:fs`, web is in-process `fetch`, every `ToolDefinition.execute()` closes over `ctx`): an OS sandbox wraps `execve` and cannot wrap an in-process function call, so "sandbox any tool" is policy at each tool's seam, never a mechanical transport change.
 - `tools/pre-execute` (`allow`/`deny`/`ask`) exists, with `ask` serviced by [the approval seam](2026-07-06-approval-seam.md); the fs intent gates are version guards with no mode input yet.
 - `dsh-bash`'s request/spec split (`BashExecRequest` → `resolve()` → `BashExecSpec`) carries per-call fields the way escalation needs — `owner` is the template: request-optional, spec required-but-nullable, carried verbatim — and the result types already speak `SandboxMode`, so a per-call policy field adds no dependency edge.
-- The pinned-header snapshot design means a schema/description change churns at most one pinning fixture per suite, and the escalation fields are advertised only under a sandboxing executor — so they live in exactly one pinned header, the sandbox example suite's `mode-switching` fixture.
+- The pinned-header snapshot design means a schema/description change churns at most one pinning fixture per suite, and the escalation fields are advertised only under a sandboxing executor — so they live in exactly one pinned header, the acp example suite's `permission-switching` fixture.
 
 #### The seam: `ctx.sandbox`
 
@@ -135,7 +135,7 @@ FIXME: Revisit this tool-local boundary. The follow-up design needs to determine
 - Unit tier (no real runner anywhere): profile dialects, per-platform chain selection (sole candidate unprobed, no chain fails closed, multi-candidate probe order), verdict caching, the fail-closed end, probe-report parsing, and the launcher/`sandbox-exec` CLI contracts via fake runner scripts in `dsh-sandbox-local`; wrapping, policy hand-off, fact stamping, and runner-failure-outranks-denial classification (foreground throw, background `runnerFailed` fact) against a fake provider in `dsh-bash-sandbox`; the error's structured identity in `dsh-sandbox`. The escalation matrix spans the three bash packages: verbatim carry-through in `dsh-bash-local`, stamp/branch/per-task-facts in `dsh-bash-sandbox`, and the capability gate, `justification` pairing, fail-closed texts (pinned verbatim), and grant stamping in `dsh-tool-bash`. The switching surface pins the folds, the stamping precedence, the `'never'` gate, per-session section rendering, the full narrator matrix (cold start, coalescing, net-zero, resume drift with operator wording, positional attribution, persona-shadow hardening), and the bridge's advertisement gating, validation rejections, idle-vs-mid-turn anchoring (dev invariants mounted), and `session/load` reporting over a real two-process JSONL round trip.
 - Keyless real-runner e2e, split along the seam and per rung: CI's `sandbox-e2e` matrix runs bwrap and Landlock on Linux (the Landlock leg once per architecture, each confining through the registry-installed launcher) and Seatbelt on macOS against real kernels, failing on a silent all-skip. World-proofs live in `dsh-sandbox-local` (denied writes absent on disk, workspace writes landing, temp-area grants pinned, kernel denial text matching the advertised dialect) and `dsh-bash-sandbox` (the through-`ctx.bash` consumer proofs, including denied-then-overridden-write-lands). This package's own publish path is rehearsed without publishing (`packed-install.e2e.ts`): `pnpm pack`, tarballs installed into a throwaway consumer with the launcher family resolving from the registry, plain `node` confining through the INSTALLED launcher — asserted executable apart, so a mode-stripped binary can never masquerade as a non-enforcing kernel. The switching surface has its own keyless e2e (the acp-agent example's `escalation.e2e.ts`): the real `sandbox.cordis.yml` tree advertises both options, honors switches end to end, and rejects out-of-vocabulary values.
 - With-key e2e (`examples/acp-agent/tests/escalation.e2e.ts`): real model + real runner + the REAL bridge answerer, world-verified — denied under `read-only`, escalates with justification, the scripted editor grants and the retried write lands on disk, while a rejected escalation leaves no write. Self-skips without `DEEPSEEK_API_KEY` or a usable runner (e2e.yml installs bubblewrap so it actually executes in CI).
-- Snapshot tier (`examples/acp-agent/tests/acp.snapshot.ts`): the keyless config-option wire; the recorded mode-switching arc as the suite's pinned header — necessarily, since mid-session switches emit the `request/header-delta`s the uniformity guard licenses only in the pin — committing both switches, the prompt-section delta and one "changed by the user" notice per knob, and a confined write landing under the switched mode; and both recorded escalation branches over scripted `permissionAnswers` (grant runs confined under `workspace-write`; rejection executes nothing and pins the fail-closed text). Replay re-executes every fixture's bash calls under the host's real runner (ci.yml's snapshot lane installs bubblewrap). Deliberately absent: a fixture carrying a real DENIAL — denial stderr is the backend's dialect and would pin a fixture to its recording platform; the escalation prompts assert the prior denial instead, and the denial→marker path stays on the tiers above.
+- Snapshot tier (`examples/acp-agent/tests/acp.snapshot.ts`): the keyless config-option wire; the recorded permission-switching arc as the pinned header of its class — necessarily, since mid-session switches emit the `request/header-delta`s the uniformity guard licenses only in the pin — committing one `request`→`yolo` preset switch (the `permission/preset` event written through to both knobs), the approval prompt-section delta and its "changed by the user" notice; and both recorded escalation branches over scripted `permissionAnswers` (grant runs under the granted `danger-full-access`; rejection executes nothing and pins the fail-closed text). Replay re-executes every fixture's bash calls under the host's real runner (ci.yml's snapshot lane installs bubblewrap). Deliberately absent: a fixture carrying a real DENIAL — denial stderr is the backend's dialect and would pin a fixture to its recording platform; the escalation prompts assert the prior denial instead, and the denial→marker path stays on the tiers above.
 
 ## Deferred phases
 

examples/acp-agent/README.md

@@ -40,11 +40,11 @@ This example is the home of the harness's **snapshot tests** — they boot this
 The same server with the bash executor swapped for the sandbox stack ([`@deepseek-ai/dsh-sandbox-local`](../../packages/sandbox/sandbox-local/) + [`@deepseek-ai/dsh-bash-sandbox`](../../packages/bash/bash-sandbox/) — the one-entry executor swap the `ctx.bash` capability seam exists for) plus [`@deepseek-ai/dsh-user-approval`](../../packages/ui/user-approval/) — the composition where the approval loop is LIVE end to end: bash runs under `read-only`, a denial comes back as the structured marker, the model retries once with `sandbox_permissions` + `justification`, the ACP bridge's answerer turns that ask into a `session/request_permission` prompt in your editor, and "Allow once" runs exactly that command under the wider mode ([sandbox RFC § Escalation](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)). Run it with `pnpm run demo:sandbox-acp`; Zed setup is the same as above with this command.
 
 - **Every approval is one-shot** (`Allow once` / `Reject` — no `allow_always`: the harness has no grant storage yet), and a dismissed prompt or a rejected ask fails closed with its own error text; so does every ask when no editor is attached to answer.
-- **Two session config options are live** ([sandbox RFC § Per-session mode switching](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)): a capable client shows `Sandbox` (`read-only`/`workspace-write`/`danger-full-access`) and `Approvals` (`ask`/`never`) selectors per session — a switch is one log-only event on that session's log and execution follows it; the sandbox mode is deliberately NOT stated in the prompt or narrated (the model learns the boundary from the denial marker — behavior, not belief), while an approval switch to `never` is stated and narrated; a resumed session reports its overrides back on `session/load`.
+- **One session config option is live** ([sandbox RFC § Per-session mode switching](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md)): a capable client shows a `Permissions` select per session (`request` = workspace-write + ask, `yolo` = danger-full-access + never — the `@deepseek-ai/dsh-permission` preset table), and a switch is one log-only `permission/preset` event written through to the two knob events, execution following the knobs; the sandbox mode is deliberately NOT stated in the prompt or narrated (the model learns the boundary from the denial marker — behavior, not belief), while an approval switch to `never` is stated and narrated; a resumed session reports its overrides back on `session/load`.
 - **The write boundary is config-fixed**: an escalated `workspace-write` run may write under the launch directory (`workspaceRoot: process.cwd()`) plus the platform temp area — a per-session root is config-phase future work in the [sandbox RFC](../../docs/rfc/implemented/feature/2026-07-06-sandbox.md).
 - **No usable runner fails closed per command** (structured `SANDBOX_UNAVAILABLE`), and the variant loads no filesystem tools: they would bypass the bash sandbox.
 
-Variant tests, in this example's suites: `tests/escalation.e2e.ts` — keyless, it boots the real `sandbox.cordis.yml` through the Loader as an ACP subprocess, proves the whole tree (sandbox executor + approval service + bridge) initializes and opens a session, and drives the config options end to end; with a key and a usable runner, a scripted ACP client plays the human — the real model gets denied, escalates, the client answers `allow-once`, and the retried write must land on disk. Four scenarios in `tests/acp.snapshot.ts` run against the variant's `sandbox.cordis.snapshot.yml` replay overlay under the `sandbox` header class: the keyless `config-options` exchange, the recorded `mode-switching` arc (that class's pinned header — the approval prompt-section delta, its "changed by the user" notice, and a confined write landing under the switched mode), and both recorded escalation branches (`session/request_permission` answered allow-once / reject-once). Replay re-executes every recorded bash call under the host's real runner — Seatbelt works out of the box on macOS; on Linux install bubblewrap first, exactly what ci.yml's snapshot lane does. No fixture carries a real denial: denial stderr is backend dialect and would pin a fixture to its recording platform (the rationale comment atop the suite file).
+Variant tests, in this example's suites: `tests/escalation.e2e.ts` — keyless, it boots the real `sandbox.cordis.yml` through the Loader as an ACP subprocess, proves the whole tree (sandbox executor + approval service + bridge) initializes and opens a session, and drives the config options end to end; with a key and a usable runner, a scripted ACP client plays the human — the real model escalates a user-asserted denial, the client answers `allow-once`, and the retried write must land on disk. Four scenarios in `tests/acp.snapshot.ts` run against the variant's `sandbox.cordis.snapshot.yml` replay overlay under the `sandbox` header class: the keyless `config-options` exchange, the recorded `permission-switching` arc (that class's pinned header — one `request`→`yolo` preset switch, its approval prompt-section delta and "changed by the user" notice), and both recorded escalation branches (`session/request_permission` answered allow-once / reject-once). Replay re-executes every recorded bash call under the host's real runner — Seatbelt works out of the box on macOS; on Linux install bubblewrap first, exactly what ci.yml's snapshot lane does. No fixture carries a real denial: denial stderr is backend dialect and would pin a fixture to its recording platform (the rationale comment atop the suite file).
 
 ## MVP limitations
 

examples/acp-agent/sandbox.cordis.yml

@@ -23,8 +23,8 @@
 
 # The sandbox stack: the platform-runner provider (bwrap → per-platform
 # Landlock launcher → Seatbelt, functionally probed), then the confined bash executor.
-# read-only is the fail-safe default; the write boundary for an escalated
-# workspace-write run is workspaceRoot + the platform's temp area. NOTE: the
+# workspace-write is the default (the 'request' preset's bundle); the write
+# boundary is workspaceRoot + the platform's temp area. NOTE: the
 # workspace root is CONFIG-FIXED for the executor's lifetime (the launch dir
 # here), while each ACP session has its own cwd — a per-session root is config-
 # phase future work in the sandbox RFC.
@@ -33,7 +33,7 @@
 - id: bash
   name: '@deepseek-ai/dsh-bash-sandbox'
   config:
-    mode: read-only
+    mode: workspace-write
     workspaceRoot: !!js process.cwd()
 
 # The approval seam (ctx.approval — mechanism only, no config): with it
@@ -44,6 +44,14 @@
 - id: approval
   name: '@deepseek-ai/dsh-user-approval'
 
+# The user-facing permission presets: ONE `Permissions` select in the editor
+# (request/yolo), each bundling a sandbox mode and an approval policy, written
+# through to the two knob events. The defaults above (workspace-write + ask)
+# reverse-map to `request`, so a fresh session starts there; a knob state
+# outside the table derives the switch-away-only `custom` value.
+- id: permission
+  name: '@deepseek-ai/dsh-permission'
+
 # The ACP server app: the agent-core spine + JSONL persistence + the ACP
 # bridge (whose approval answerer completes the loop).
 - id: acp-agent

examples/acp-agent/tests/acp.snapshot.ts

@@ -140,20 +140,24 @@ const SCENARIOS: Scenario[] = [
   // prior denial. config-options: the session config-option surface this
   // composition adds (both advertised selects, the refreshed state every
   // set_config_option answers with, both rejection shapes) — protocol-only,
-  // replays on runner-less hosts. mode-switching: the runtime switching arc
-  // and NECESSARILY this class's pinned-header scenario (an approval-policy
-  // switch rewrites its prompt section; the resulting request/header-delta is
-  // legal only in the pinning scenario) — the pin commits the full sandbox
-  // header (persona, tool schemas WITH the escalation fields) plus the
-  // approval delta and its "changed by the user" notice; the SANDBOX switch
-  // stays deliberately silent (the visibility asymmetry), proven by BEHAVIOR.
+  // replays on runner-less hosts. permission-switching: the runtime
+  // preset-switch arc (request → yolo: one permission/preset event written
+  // through to both knobs) and NECESSARILY this class's pinned-header
+  // scenario (yolo's approval=never rewrites the prompt section; the
+  // resulting request/header-delta is legal only in the pinning scenario) —
+  // the pin commits the full sandbox header (persona, tool schemas WITH the
+  // escalation fields) plus the approval delta and its "changed by the user"
+  // notice; the sandbox half of the bundle stays deliberately silent (the
+  // visibility asymmetry) and is pinned as its stamped knob event.
   // escalation-approved/rejected: the approval wire end-to-end under the
-  // default read-only/ask — the escalating call streams,
-  // session/request_permission attaches to it, and the scripted answer drives
-  // each branch (approved runs CONFINED under the granted workspace-write;
-  // rejected executes nothing, failing with the deterministic text).
+  // default request preset (workspace-write/ask) — the escalating call
+  // (danger-full-access for a user-asserted outside-workspace denial)
+  // streams, session/request_permission attaches to it, and the scripted
+  // answer drives each branch (approved runs under the granted mode and
+  // self-cleans its /tmp target; rejected executes nothing, failing with
+  // the deterministic text).
   { name: 'config-options', hasModelTurn: false, recorded: false, headerClass: 'sandbox', configPath: SANDBOX_CONFIG },
-  { name: 'mode-switching', hasModelTurn: true, recorded: true, pinsHeader: true, expectedHeaderDeltas: 1, headerClass: 'sandbox', configPath: SANDBOX_CONFIG },
+  { name: 'permission-switching', hasModelTurn: true, recorded: true, pinsHeader: true, expectedHeaderDeltas: 1, headerClass: 'sandbox', configPath: SANDBOX_CONFIG },
   { name: 'escalation-approved', hasModelTurn: true, recorded: true, headerClass: 'sandbox', configPath: SANDBOX_CONFIG },
   { name: 'escalation-rejected', hasModelTurn: true, recorded: true, headerClass: 'sandbox', configPath: SANDBOX_CONFIG },
 ]

examples/acp-agent/tests/escalation.e2e.ts

@@ -26,13 +26,13 @@ import {
  * model nor a sandbox runner is ever exercised.
  *
  * With-key escalation flow (self-skips without DEEPSEEK_API_KEY or a usable
- * platform runner): a scripted ACP client plays the human. The real model is
- * denied under `read-only`, escalates with `sandbox_permissions` +
+ * platform runner): a scripted ACP client plays the human. The prompt asserts
+ * a prior denial (the organic denial→marker path lives on the sandbox e2e
+ * legs and unit tiers), the real model escalates with `sandbox_permissions` +
  * `justification`, the bridge prompts THIS client over
  * `session/request_permission`, the client answers `allow-once`, and the
- * retried write must land ON DISK (world-verified). The session cwd is a temp
- * dir under the platform temp area, which `workspace-write` grants — so either
- * escalation target the model picks can land the write.
+ * retried write must land ON DISK (world-verified) — under the granted mode,
+ * a temp-dir session cwd is writable either way.
  */
 
 const binScript = fileURLToPath(new URL('../../../packages/ui/acp-agent/src/bin.ts', import.meta.url))
@@ -130,34 +130,33 @@ describe('sandbox variant keyless smoke (real sandbox.cordis.yml via the Loader)
     expect(sessionId.length).toBeGreaterThan(0)
   }, 30_000)
 
-  it('advertises both session config options and honors a switch end to end (no key, no model)', async () => {
+  it('advertises the Permissions select and honors a switch end to end (no key, no model)', async () => {
     workdir = await mkdtemp(join(tmpdir(), 'sandbox-acp-config-'))
     spawned = spawnSandboxAcpAgent(workdir, 'reject-once')
     const { client } = spawned
     await client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} })
-    // This tree composes bash-sandbox (mode: read-only) + approval → both
-    // knobs advertise, currents from composition config.
+    // This tree composes the permission presets over bash-sandbox + approval →
+    // ONE select advertises, current from the configured default preset.
     const created = await client.newSession({ cwd: workdir, mcpServers: [] })
     const advertised = created.configOptions ?? []
     expect(advertised.map(option => [option.id, 'currentValue' in option ? option.currentValue : undefined]))
-      .toEqual([['sandbox-mode', 'read-only'], ['approval-policy', 'ask']])
+      .toEqual([['permission', 'request']])
     // A switch responds with the COMPLETE refreshed state (the spec contract),
-    // and the new currents survive in the response of a second switch.
-    const afterSandbox = await client.setSessionConfigOption({
-      sessionId: created.sessionId, configId: 'sandbox-mode', value: 'workspace-write',
+    // and the new current survives in the response of a second switch.
+    const afterYolo = await client.setSessionConfigOption({
+      sessionId: created.sessionId, configId: 'permission', value: 'yolo',
     })
-    const afterApproval = await client.setSessionConfigOption({
-      sessionId: created.sessionId, configId: 'approval-policy', value: 'never',
+    expect(afterYolo.configOptions?.find(option => option.id === 'permission'))
+      .toMatchObject({ currentValue: 'yolo' })
+    const again = await client.setSessionConfigOption({
+      sessionId: created.sessionId, configId: 'permission', value: 'yolo',
     })
-    const currents = (afterApproval.configOptions ?? []).map(option =>
-      [option.id, 'currentValue' in option ? option.currentValue : undefined])
-    expect(afterSandbox.configOptions?.find(option => option.id === 'sandbox-mode'))
-      .toMatchObject({ currentValue: 'workspace-write' })
-    expect(currents).toEqual([['sandbox-mode', 'workspace-write'], ['approval-policy', 'never']])
+    expect((again.configOptions ?? []).map(option => [option.id, 'currentValue' in option ? option.currentValue : undefined]))
+      .toEqual([['permission', 'yolo']])
     // An out-of-vocabulary value is a protocol error, never a silent default.
     await expect(client.setSessionConfigOption({
-      sessionId: created.sessionId, configId: 'sandbox-mode', value: 'yolo',
-    })).rejects.toThrow(/unknown sandbox-mode value/)
+      sessionId: created.sessionId, configId: 'permission', value: 'plan',
+    })).rejects.toThrow(/unknown permission value/)
   }, 30_000)
 })
 
@@ -171,12 +170,12 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY || !hasRunner)('sandbox variant e2
     const { sessionId } = await client.newSession({ cwd: workdir, mcpServers: [] })
     const res = await client.prompt({
       sessionId,
-      prompt: [{ type: 'text', text: `Use the bash tool to create the file ${workdir}/escalated.txt containing exactly "ACP_ESCALATION_OK". `
-        + 'If the sandbox denies it, retry once with sandbox_permissions and a one-sentence justification, then stop.' }],
+      prompt: [{ type: 'text', text: `The sandbox already denied writing ${workdir}/escalated.txt. Create it now containing exactly "ACP_ESCALATION_OK": `
+        + 'one single bash call with sandbox_permissions set to danger-full-access and a one-sentence justification, then stop.' }],
     })
     expect(['end_turn', 'max_tokens']).toContain(res.stopReason)
 
-    // The WORLD: the approved escalated retry landed the write read-only denied.
+    // The WORLD: the approved escalated retry landed the write.
     const proof = await readFile(join(workdir, 'escalated.txt'), 'utf8')
     expect(proof).toContain('ACP_ESCALATION_OK')
 
@@ -200,8 +199,8 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY || !hasRunner)('sandbox variant e2
     const { sessionId } = await client.newSession({ cwd: workdir, mcpServers: [] })
     const res = await client.prompt({
       sessionId,
-      prompt: [{ type: 'text', text: `Use the bash tool to create the file ${workdir}/refused.txt containing "NO". `
-        + 'If the sandbox denies it, retry once with sandbox_permissions and a one-sentence justification. If that is rejected, stop and say so.' }],
+      prompt: [{ type: 'text', text: `The sandbox already denied writing ${workdir}/refused.txt. Create it now containing "NO": `
+        + 'one single bash call with sandbox_permissions set to danger-full-access and a one-sentence justification. If that is rejected, stop and say so.' }],
     })
     expect(['end_turn', 'max_tokens']).toContain(res.stopReason)
 

examples/acp-agent/tests/snapshots/config-options/input.json

@@ -1,10 +1,30 @@
 {
   "steps": [
-    { "op": "initialize" },
-    { "op": "newSession" },
-    { "op": "setConfigOption", "configId": "sandbox-mode", "value": "workspace-write" },
-    { "op": "setConfigOption", "configId": "approval-policy", "value": "never" },
-    { "op": "setConfigOptionExpectError", "configId": "sandbox-mode", "value": "yolo" },
-    { "op": "setConfigOptionExpectError", "configId": "reasoning-effort", "value": "max" }
+    {
+      "op": "initialize"
+    },
+    {
+      "op": "newSession"
+    },
+    {
+      "op": "setConfigOption",
+      "configId": "permission",
+      "value": "yolo"
+    },
+    {
+      "op": "setConfigOption",
+      "configId": "permission",
+      "value": "request"
+    },
+    {
+      "op": "setConfigOptionExpectError",
+      "configId": "permission",
+      "value": "plan"
+    },
+    {
+      "op": "setConfigOptionExpectError",
+      "configId": "reasoning-effort",
+      "value": "max"
+    }
   ]
 }

examples/acp-agent/tests/snapshots/config-options/stdout.golden.jsonl

@@ -1,6 +1,6 @@
 {"jsonrpc":"2.0","id":1,"result":{"protocolVersion":1,"agentInfo":{"name":"deepseek-harness-acp","version":"0.0.1"},"agentCapabilities":{"loadSession":true,"promptCapabilities":{"image":false,"audio":false,"embeddedContext":false}},"authMethods":[]}}
-{"jsonrpc":"2.0","id":2,"result":{"sessionId":"{{sessionId}}","configOptions":[{"id":"sandbox-mode","name":"Sandbox","description":"The file sandbox mode bash commands in this session run under.","category":"mode","type":"select","currentValue":"read-only","options":[{"value":"read-only","name":"read-only"},{"value":"workspace-write","name":"workspace-write"},{"value":"danger-full-access","name":"danger-full-access"}]},{"id":"approval-policy","name":"Approvals","description":"ask: permission prompts reach you; never: they are rejected automatically.","type":"select","currentValue":"ask","options":[{"value":"ask","name":"ask"},{"value":"never","name":"never"}]}]}}
-{"jsonrpc":"2.0","id":3,"result":{"configOptions":[{"id":"sandbox-mode","name":"Sandbox","description":"The file sandbox mode bash commands in this session run under.","category":"mode","type":"select","currentValue":"workspace-write","options":[{"value":"read-only","name":"read-only"},{"value":"workspace-write","name":"workspace-write"},{"value":"danger-full-access","name":"danger-full-access"}]},{"id":"approval-policy","name":"Approvals","description":"ask: permission prompts reach you; never: they are rejected automatically.","type":"select","currentValue":"ask","options":[{"value":"ask","name":"ask"},{"value":"never","name":"never"}]}]}}
-{"jsonrpc":"2.0","id":4,"result":{"configOptions":[{"id":"sandbox-mode","name":"Sandbox","description":"The file sandbox mode bash commands in this session run under.","category":"mode","type":"select","currentValue":"workspace-write","options":[{"value":"read-only","name":"read-only"},{"value":"workspace-write","name":"workspace-write"},{"value":"danger-full-access","name":"danger-full-access"}]},{"id":"approval-policy","name":"Approvals","description":"ask: permission prompts reach you; never: they are rejected automatically.","type":"select","currentValue":"never","options":[{"value":"ask","name":"ask"},{"value":"never","name":"never"}]}]}}
-{"jsonrpc":"2.0","id":5,"error":{"code":-32602,"message":"Invalid params: unknown sandbox-mode value \"yolo\""}}
+{"jsonrpc":"2.0","id":2,"result":{"sessionId":"{{sessionId}}","configOptions":[{"id":"permission","name":"Permissions","description":"The session permission preset: each choice bundles a sandbox mode and an approval policy.","category":"mode","type":"select","currentValue":"request","options":[{"value":"request","name":"Request","description":"Write inside the workspace; anything wider asks for your approval."},{"value":"yolo","name":"YOLO","description":"Full file access, no approval prompts."}]}]}}
+{"jsonrpc":"2.0","id":3,"result":{"configOptions":[{"id":"permission","name":"Permissions","description":"The session permission preset: each choice bundles a sandbox mode and an approval policy.","category":"mode","type":"select","currentValue":"yolo","options":[{"value":"request","name":"Request","description":"Write inside the workspace; anything wider asks for your approval."},{"value":"yolo","name":"YOLO","description":"Full file access, no approval prompts."}]}]}}
+{"jsonrpc":"2.0","id":4,"result":{"configOptions":[{"id":"permission","name":"Permissions","description":"The session permission preset: each choice bundles a sandbox mode and an approval policy.","category":"mode","type":"select","currentValue":"request","options":[{"value":"request","name":"Request","description":"Write inside the workspace; anything wider asks for your approval."},{"value":"yolo","name":"YOLO","description":"Full file access, no approval prompts."}]}]}}
+{"jsonrpc":"2.0","id":5,"error":{"code":-32602,"message":"Invalid params: unknown permission value \"plan\""}}
 {"jsonrpc":"2.0","id":6,"error":{"code":-32602,"message":"Invalid params: unknown config option \"reasoning-effort\""}}

examples/acp-agent/tests/snapshots/escalation-approved/input.json

@@ -1,10 +1,19 @@
 {
   "steps": [
-    { "op": "initialize" },
-    { "op": "newSession" },
-    { "op": "prompt", "text": "The sandbox already denied writing escalated.txt in this workspace earlier. Retry it now exactly once: one single bash call with the command printf 'escalated\\n' > escalated.txt && cat escalated.txt, with sandbox_permissions set to workspace-write and the justification 'the user asked to write escalated.txt in the workspace'. Do not run it without sandbox_permissions first. I will approve the permission prompt. After the result, reply with the single word DONE and stop." }
+    {
+      "op": "initialize"
+    },
+    {
+      "op": "newSession"
+    },
+    {
+      "op": "prompt",
+      "text": "The sandbox already denied writing /tmp/dsh-escalated.txt earlier (it is outside this workspace). Retry it now exactly once: one single bash call with the command printf 'escalated\\n' > /tmp/dsh-escalated.txt && cat /tmp/dsh-escalated.txt && rm /tmp/dsh-escalated.txt, with sandbox_permissions set to danger-full-access and the justification 'the user asked to write a file outside the workspace'. Do not run it without sandbox_permissions first. I will approve the permission prompt. After the result, reply with the single word DONE and stop."
+    }
   ],
   "permissionAnswers": [
-    { "kind": "allow_once" }
+    {
+      "kind": "allow_once"
+    }
   ]
 }

examples/acp-agent/tests/snapshots/escalation-approved/session.jsonl

@@ -1,149 +1,185 @@
-{"type":"session","version":0,"id":"8f399407-f505-45e5-9058-0994ff7b0865","createdAt":1783486769425,"cwd":"/var/folders/2g/b32ct0qn1d728l_v6tdkjytr0000gn/T/acp-snap-cwd-xKPr5d"}
-{"type":"turn/start","seq":0,"time":1783486769426,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}}
-{"type":"user/message","seq":1,"time":1783486769426,"data":{"content":[{"type":"text","text":"The sandbox already denied writing escalated.txt in this workspace earlier. Retry it now exactly once: one single bash call with the command printf 'escalated\\n' > escalated.txt && cat escalated.txt, with sandbox_permissions set to workspace-write and the justification 'the user asked to write escalated.txt in the workspace'. Do not run it without sandbox_permissions first. I will approve the permission prompt. After the result, reply with the single word DONE and stop."}],"source":{"kind":"user"}},"surfaceOp":"append"}
-{"type":"step/start","seq":2,"time":1783486769427,"data":{"turn":1,"step":1}}
-{"type":"request/header","seq":3,"time":1783486769427,"data":{"header":{"config":{"model":"deepseek-v4-flash"},"system":"{{system}}","tools":"{{tools}}"},"reason":"initial"}}
-{"type":"assistant/chunk","seq":4,"time":1783486770051,"data":{"turn":1,"step":1,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}}
-{"type":"assistant/chunk","seq":5,"time":1783486770052,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"The"}}}
-{"type":"assistant/chunk","seq":6,"time":1783486770179,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" user"}}}
-{"type":"assistant/chunk","seq":7,"time":1783486770212,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" wants"}}}
-{"type":"assistant/chunk","seq":8,"time":1783486770213,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" me"}}}
-{"type":"assistant/chunk","seq":9,"time":1783486770214,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" to"}}}
-{"type":"assistant/chunk","seq":10,"time":1783486770214,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" ret"}}}
-{"type":"assistant/chunk","seq":11,"time":1783486770215,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"ry"}}}
-{"type":"assistant/chunk","seq":12,"time":1783486770215,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" the"}}}
-{"type":"assistant/chunk","seq":13,"time":1783486770242,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" command"}}}
-{"type":"assistant/chunk","seq":14,"time":1783486770243,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" with"}}}
-{"type":"assistant/chunk","seq":15,"time":1783486770277,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" sand"}}}
-{"type":"assistant/chunk","seq":16,"time":1783486770278,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"box"}}}
-{"type":"assistant/chunk","seq":17,"time":1783486770278,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"_per"}}}
-{"type":"assistant/chunk","seq":18,"time":1783486770306,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"missions"}}}
-{"type":"assistant/chunk","seq":19,"time":1783486770307,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" set"}}}
-{"type":"assistant/chunk","seq":20,"time":1783486770335,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" to"}}}
-{"type":"assistant/chunk","seq":21,"time":1783486770337,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" workspace"}}}
-{"type":"assistant/chunk","seq":22,"time":1783486770338,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"-w"}}}
-{"type":"assistant/chunk","seq":23,"time":1783486770338,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"rite"}}}
-{"type":"assistant/chunk","seq":24,"time":1783486770338,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}}
-{"type":"assistant/chunk","seq":25,"time":1783486770368,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" They"}}}
-{"type":"assistant/chunk","seq":26,"time":1783486770369,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" explicitly"}}}
-{"type":"assistant/chunk","seq":27,"time":1783486770430,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" said"}}}
-{"type":"assistant/chunk","seq":28,"time":1783486770431,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" they"}}}
-{"type":"assistant/chunk","seq":29,"time":1783486770431,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" will"}}}
-{"type":"assistant/chunk","seq":30,"time":1783486770458,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" approve"}}}
-{"type":"assistant/chunk","seq":31,"time":1783486770459,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" the"}}}
-{"type":"assistant/chunk","seq":32,"time":1783486770459,"data":{"turn":1,"step":1,"chunk":{"type":"reasoning-delta","index":0,"text":" permission"}}}
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+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" read"}}}}
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+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"es"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"cal"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ated"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"),"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" removed"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" it"}}}}
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@@ -53,6 +66,9 @@
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+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" after"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" result"}}}}
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examples/acp-agent/tests/snapshots/escalation-rejected/input.json

@@ -1,10 +1,19 @@
 {
   "steps": [
-    { "op": "initialize" },
-    { "op": "newSession" },
-    { "op": "prompt", "text": "The sandbox already denied writing escalated.txt in this workspace earlier. Retry it now exactly once: one single bash call with the command printf 'escalated\\n' > escalated.txt && cat escalated.txt, with sandbox_permissions set to workspace-write and the justification 'the user asked to write escalated.txt in the workspace'. Do not run it without sandbox_permissions first. I will reject the permission prompt; after the rejection, do not retry and do not work around it — explain in one short sentence that the escalation was rejected, then stop." }
+    {
+      "op": "initialize"
+    },
+    {
+      "op": "newSession"
+    },
+    {
+      "op": "prompt",
+      "text": "The sandbox already denied writing /tmp/dsh-escalated.txt earlier (it is outside this workspace). Retry it now exactly once: one single bash call with the command printf 'escalated\\n' > /tmp/dsh-escalated.txt && cat /tmp/dsh-escalated.txt && rm /tmp/dsh-escalated.txt, with sandbox_permissions set to danger-full-access and the justification 'the user asked to write a file outside the workspace'. Do not run it without sandbox_permissions first. I will reject the permission prompt; after the rejection, do not retry and do not work around it \u2014 explain in one short sentence and stop."
+    }
   ],
   "permissionAnswers": [
-    { "kind": "reject_once" }
+    {
+      "kind": "reject_once"
+    }
   ]
 }

examples/acp-agent/tests/snapshots/escalation-rejected/session.jsonl

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examples/acp-agent/tests/snapshots/escalation-rejected/stdout.golden.jsonl

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+{"jsonrpc":"2.0","id":2,"result":{"sessionId":"{{sessionId}}","configOptions":[{"id":"permission","name":"Permissions","description":"The session permission preset: each choice bundles a sandbox mode and an approval policy.","category":"mode","type":"select","currentValue":"request","options":[{"value":"request","name":"Request","description":"Write inside the workspace; anything wider asks for your approval."},{"value":"yolo","name":"YOLO","description":"Full file access, no approval prompts."}]}]}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" user"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" wants"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" me"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" ret"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ry"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" exact"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" run"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" a"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" specific"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" command"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" `"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"printf"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" '"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"es"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"cal"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ated"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\\n"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"'"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" >"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" escalated"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":".txt"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" &&"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" cat"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" escalated"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":".txt"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"`"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" `"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"sand"}}}}
@@ -36,52 +19,60 @@
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" set"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" `"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"works"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"pace"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"-w"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"rite"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"danger"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"-full"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"-access"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"`"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" a"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" specific"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" justification"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" they"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" specified"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" They"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" explicitly"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" say"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" they"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" will"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reject"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" permission"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" prompt"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":","}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" so"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" after"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" rejection"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" I"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" should"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" explain"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" in"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" one"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" short"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" sentence"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" stop"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" said"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" NOT"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" run"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" it"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" without"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" sand"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"box"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"_per"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"missions"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" first"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" Let"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" me"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" do"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" exactly"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" that"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_ODln9LCQtuvTw4FDZEfe3479","title":"printf 'escalated\\n' > escalated.txt && cat escalated.txt","kind":"execute","status":"in_progress","rawInput":"printf 'escalated\\n' > escalated.txt && cat escalated.txt","content":[{"type":"content","content":{"type":"text","text":"Write escalated.txt with workspace-write permission"}}]}}}
-{"jsonrpc":"2.0","id":1,"method":"session/request_permission","params":{"sessionId":"{{sessionId}}","toolCall":{"toolCallId":"call_00_ODln9LCQtuvTw4FDZEfe3479"},"options":[{"optionId":"allow-once","name":"Allow once","kind":"allow_once"},{"optionId":"reject-once","name":"Reject","kind":"reject_once"}]}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_ODln9LCQtuvTw4FDZEfe3479","status":"failed","content":[{"type":"content","content":{"type":"text","text":"```console\nError: the user rejected escalating this command to \"workspace-write\"\n```"}}]}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_WB1vnPomi8yr6MlcFKTj7912","title":"printf 'escalated\\n' > /tmp/dsh-escalated.txt && cat /tmp/dsh-escalated.txt && rm /tmp/dsh-escalated.txt","kind":"execute","status":"in_progress","rawInput":"printf 'escalated\\n' > /tmp/dsh-escalated.txt && cat /tmp/dsh-escalated.txt && rm /tmp/dsh-escalated.txt","content":[{"type":"content","content":{"type":"text","text":"Write to /tmp and verify, then clean up"}}]}}}
+{"jsonrpc":"2.0","id":1,"method":"session/request_permission","params":{"sessionId":"{{sessionId}}","toolCall":{"toolCallId":"call_00_WB1vnPomi8yr6MlcFKTj7912"},"options":[{"optionId":"allow-once","name":"Allow once","kind":"allow_once"},{"optionId":"reject-once","name":"Reject","kind":"reject_once"}]}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_WB1vnPomi8yr6MlcFKTj7912","status":"failed","content":[{"type":"content","content":{"type":"text","text":"```console\nError: the user rejected escalating this command to \"danger-full-access\"\n```"}}]}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" user"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" rejected"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" escalation"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" As"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" instructed"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":","}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" I"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" need"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" will"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" not"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" ret"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ry"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" will"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" not"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" work"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" around"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" it"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" —"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" just"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" explain"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" in"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" one"}}}}
@@ -91,21 +82,17 @@
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" stop"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"The"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" escalation"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" request"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" to"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" write"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" to"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" the"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" workspace"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" was"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" user"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" rejected"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" the"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" permission"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" escalation"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":","}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" so"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" the"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" this"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" command"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" was"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" not"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" executed"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" cannot"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" be"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" run"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"."}}}}
 {"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}}

examples/acp-agent/tests/snapshots/mode-switching/input.json

@@ -1,11 +0,0 @@
-{
-  "steps": [
-    { "op": "initialize" },
-    { "op": "newSession" },
-    { "op": "prompt", "text": "Use the bash tool to run exactly: cat notes.txt. Then reply with the single word DONE and stop." },
-    { "op": "setConfigOption", "configId": "sandbox-mode", "value": "workspace-write" },
-    { "op": "prompt", "text": "Use the bash tool to run exactly this one command in a single call: printf 'switched\\n' > out.txt && cat out.txt. Then reply with the single word DONE and stop." },
-    { "op": "setConfigOption", "configId": "approval-policy", "value": "never" },
-    { "op": "prompt", "text": "Without using any tools, state your current approval policy in one short sentence and stop." }
-  ]
-}

examples/acp-agent/tests/snapshots/permission-switching/input.json

@@ -0,0 +1,27 @@
+{
+  "steps": [
+    {
+      "op": "initialize"
+    },
+    {
+      "op": "newSession"
+    },
+    {
+      "op": "prompt",
+      "text": "Use the bash tool to run exactly this one command in a single call: printf 'before\\n' > out.txt && cat out.txt. Then reply with the single word DONE and stop."
+    },
+    {
+      "op": "setConfigOption",
+      "configId": "permission",
+      "value": "yolo"
+    },
+    {
+      "op": "prompt",
+      "text": "Use the bash tool to run exactly: cat out.txt. Then reply with the single word DONE and stop."
+    },
+    {
+      "op": "prompt",
+      "text": "Without using any tools, state your current approval policy in one short sentence and stop."
+    }
+  ]
+}

examples/acp-agent/tests/snapshots/mode-switching/stdout.golden.jsonl → examples/acp-agent/tests/snapshots/permission-switching/stdout.golden.jsonl

@@ -1,37 +1,41 @@
 {"jsonrpc":"2.0","id":1,"result":{"protocolVersion":1,"agentInfo":{"name":"deepseek-harness-acp","version":"0.0.1"},"agentCapabilities":{"loadSession":true,"promptCapabilities":{"image":false,"audio":false,"embeddedContext":false}},"authMethods":[]}}
-{"jsonrpc":"2.0","id":2,"result":{"sessionId":"{{sessionId}}","configOptions":[{"id":"sandbox-mode","name":"Sandbox","description":"The file sandbox mode bash commands in this session run under.","category":"mode","type":"select","currentValue":"read-only","options":[{"value":"read-only","name":"read-only"},{"value":"workspace-write","name":"workspace-write"},{"value":"danger-full-access","name":"danger-full-access"}]},{"id":"approval-policy","name":"Approvals","description":"ask: permission prompts reach you; never: they are rejected automatically.","type":"select","currentValue":"ask","options":[{"value":"ask","name":"ask"},{"value":"never","name":"never"}]}]}}
+{"jsonrpc":"2.0","id":2,"result":{"sessionId":"{{sessionId}}","configOptions":[{"id":"permission","name":"Permissions","description":"The session permission preset: each choice bundles a sandbox mode and an approval policy.","category":"mode","type":"select","currentValue":"request","options":[{"value":"request","name":"Request","description":"Write inside the workspace; anything wider asks for your approval."},{"value":"yolo","name":"YOLO","description":"Full file access, no approval prompts."}]}]}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" user"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" wants"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" me"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" run"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" `"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"cat"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" notes"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":".txt"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"`"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" using"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" bash"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" tool"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_I9sT0gKlfz9YP4dlf2pA3899","title":"cat notes.txt","kind":"execute","status":"in_progress","rawInput":"cat notes.txt","content":[{"type":"content","content":{"type":"text","text":"Show contents of notes.txt"}}]}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_I9sT0gKlfz9YP4dlf2pA3899","status":"completed","content":[{"type":"content","content":{"type":"text","text":"```console\nhello from the sandboxed workspace\n```"}}]}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" a"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" specific"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" command"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" then"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"D"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"."}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_E1vtulcKU1LKUgLahxdR3767","title":"printf 'before\\n' > out.txt && cat out.txt","kind":"execute","status":"in_progress","rawInput":"printf 'before\\n' > out.txt && cat out.txt","content":[{"type":"content","content":{"type":"text","text":"Write and then read out.txt"}}]}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_E1vtulcKU1LKUgLahxdR3767","status":"completed","content":[{"type":"content","content":{"type":"text","text":"```console\nbefore\n```"}}]}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" command"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" ran"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" successfully"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" The"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" user"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" asked"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" me"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":","}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" output"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"before"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"."}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" Now"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" I"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" need"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" just"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" single"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" word"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" D"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}}
@@ -39,46 +43,38 @@
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"D"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"ONE"}}}}
 {"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}}
-{"jsonrpc":"2.0","id":4,"result":{"configOptions":[{"id":"sandbox-mode","name":"Sandbox","description":"The file sandbox mode bash commands in this session run under.","category":"mode","type":"select","currentValue":"workspace-write","options":[{"value":"read-only","name":"read-only"},{"value":"workspace-write","name":"workspace-write"},{"value":"danger-full-access","name":"danger-full-access"}]},{"id":"approval-policy","name":"Approvals","description":"ask: permission prompts reach you; never: they are rejected automatically.","type":"select","currentValue":"ask","options":[{"value":"ask","name":"ask"},{"value":"never","name":"never"}]}]}}
+{"jsonrpc":"2.0","id":4,"result":{"configOptions":[{"id":"permission","name":"Permissions","description":"The session permission preset: each choice bundles a sandbox mode and an approval policy.","category":"mode","type":"select","currentValue":"yolo","options":[{"value":"request","name":"Request","description":"Write inside the workspace; anything wider asks for your approval."},{"value":"yolo","name":"YOLO","description":"Full file access, no approval prompts."}]}]}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" user"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" wants"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" me"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" run"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" a"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" specific"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" command"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" Let"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" me"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" execute"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" it"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_htXcbtvwTFK0NqfclLWL7784","title":"printf 'switched\\n' > out.txt && cat out.txt","kind":"execute","status":"in_progress","rawInput":"printf 'switched\\n' > out.txt && cat out.txt","content":[{"type":"content","content":{"type":"text","text":"Write and read out.txt"}}]}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_htXcbtvwTFK0NqfclLWL7784","status":"completed","content":[{"type":"content","content":{"type":"text","text":"```console\nswitched\n```"}}]}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"Command"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" executed"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" successfully"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" The"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" output"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" is"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" `"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"cat"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" out"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":".txt"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"`"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" then"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"sw"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"itched"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"D"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"."}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_7Jb7FWHNjIBVML49dEJl1990","title":"cat out.txt","kind":"execute","status":"in_progress","rawInput":"cat out.txt","content":[{"type":"content","content":{"type":"text","text":"Read out.txt"}}]}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_7Jb7FWHNjIBVML49dEJl1990","status":"completed","content":[{"type":"content","content":{"type":"text","text":"```console\nbefore\n```"}}]}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"D"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"ONE"}}}}
 {"jsonrpc":"2.0","id":5,"result":{"stopReason":"end_turn"}}
-{"jsonrpc":"2.0","id":6,"result":{"configOptions":[{"id":"sandbox-mode","name":"Sandbox","description":"The file sandbox mode bash commands in this session run under.","category":"mode","type":"select","currentValue":"workspace-write","options":[{"value":"read-only","name":"read-only"},{"value":"workspace-write","name":"workspace-write"},{"value":"danger-full-access","name":"danger-full-access"}]},{"id":"approval-policy","name":"Approvals","description":"ask: permission prompts reach you; never: they are rejected automatically.","type":"select","currentValue":"never","options":[{"value":"ask","name":"ask"},{"value":"never","name":"never"}]}]}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" user"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" wants"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" me"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" state"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" my"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" current"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" approval"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" policy"}}}}
@@ -90,45 +86,41 @@
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" From"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" context"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" provided"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":","}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" approval"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" policy"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" is"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" changed"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" from"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"never"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ask"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\""}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" —"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" meaning"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" actions"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" that"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" require"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" approval"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" are"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" rejected"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" automatically"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":","}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" I"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" should"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" not"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" request"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" sand"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"box"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" escalation"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"Appro"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"vals"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" are"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" never"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" asked"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":";"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" any"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" action"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" requiring"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"never"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"."}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"My"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" approval"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" policy"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" is"}}}}
-{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" automatically"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" set"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" to"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" \""}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"never"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"\""}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" —"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" no"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" actions"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" requiring"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" approval"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" are"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" permitted"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":","}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" and"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" they"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" are"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" rejected"}}}}
+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":" automatically"}}}}
 {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"."}}}}
-{"jsonrpc":"2.0","id":7,"result":{"stopReason":"end_turn"}}
+{"jsonrpc":"2.0","id":6,"result":{"stopReason":"end_turn"}}

packages/cordis/tool-cordis/src/api-catalog.ts

@@ -134,6 +134,16 @@ export const SERVICE_API: readonly ServiceApiEntry[] = [
       'stream(options: GenerateOptions): AsyncIterable<StreamChunk>',
     ],
   },
+  {
+    key: 'permission',
+    summary: 'The permission service (`ctx.permission`).',
+    methods: [
+      'current(events: readonly SessionEvent[]): string',
+      'resolve(name: string): PresetSpec',
+      'optionOf(name: string): PresetOption',
+      'set(session: Session, name: string): void',
+    ],
+  },
   {
     key: 'sandbox',
     summary: 'Abstract process-sandbox service.',
@@ -514,6 +524,10 @@ export const TYPE_API: readonly TypeApiEntry[] = [
     name: 'ApprovalOutcome',
     declaration: 'export type ApprovalOutcome = \'allowed-once\' | \'rejected\' | \'cancelled\' | \'unavailable\';',
   },
+  {
+    name: 'ApprovalPolicy',
+    declaration: 'export type ApprovalPolicy = \'ask\' | \'never\';',
+  },
   {
     name: 'ApprovalRequest',
     declaration: 'export interface ApprovalRequest {\n    readonly agent: Agent;\n    readonly toolName: string;\n    readonly callId?: CallId;\n    readonly reason?: string;\n    readonly signal?: AbortSignal;\n}',
@@ -742,6 +756,14 @@ export const TYPE_API: readonly TypeApiEntry[] = [
     name: 'OwnerToken',
     declaration: 'export type OwnerToken = Branded<\'OwnerToken\'>;',
   },
+  {
+    name: 'PresetOption',
+    declaration: 'export interface PresetOption {\n    value: string;\n    name: string;\n    description?: string;\n}',
+  },
+  {
+    name: 'PresetSpec',
+    declaration: 'export interface PresetSpec {\n    sandbox: SandboxMode;\n    approval: ApprovalPolicy;\n    name?: string;\n    description?: string;\n}',
+  },
   {
     name: 'PromptAssembly',
     declaration: 'export interface PromptAssembly {\n    sections: AssembledSection[];\n    tools: ToolSchema[];\n    variables: Record<string, string | undefined>;\n}',

packages/ui/README.md

@@ -6,6 +6,7 @@ Integrations that expose the agent to an external editor or client. These are **
 |---|---|---|
 | `acp/` | Agent Client Protocol bridge: serves the agent to an ACP editor (Zed) over JSON-RPC stdio | (drives `ctx.agents`/`ctx.sessions`) |
 | `user-approval/` | One-shot user-approval mechanism, closed outcome vocabulary, audit events, and per-session approval policy | `ctx.approval` |
+| `permission/` | User-facing permission presets (request/yolo): one product-level select bundling the sandbox-mode and approval-policy knobs, written through to their session events | `ctx.permission` |
 | `user-interaction/` | Abstract human question/answer seam used by UI-backed confirmation tools | `ctx.userInteraction` |
 | `tool-ask-user/` | Model-facing `ask_user_question` tool over `ctx.userInteraction` | (registers on `ctx.tools`) |
 | `stdio-agent/` | Terminal stdio chat APP: the agent-core spine + console logger + readline UI + a pre-created `main` agent, with a `bin` | (composition + `bin`) |

packages/ui/acp/package.json

@@ -28,36 +28,38 @@
   },
   "peerDependencies": {
     "@deepseek-ai/dsh-agent": "^0.0.1",
-    "@deepseek-ai/dsh-user-approval": "^0.0.1",
     "@deepseek-ai/dsh-bash": "^0.0.1",
     "@deepseek-ai/dsh-llm": "^0.0.1",
+    "@deepseek-ai/dsh-permission": "^0.0.1",
     "@deepseek-ai/dsh-sandbox": "^0.0.1",
     "@deepseek-ai/dsh-session": "^0.0.1",
     "@deepseek-ai/dsh-session-persistence": "^0.0.1",
     "@deepseek-ai/dsh-tools": "^0.0.1",
+    "@deepseek-ai/dsh-user-approval": "^0.0.1",
     "@deepseek-ai/dsh-user-interaction": "^0.0.1",
     "cordis": "^4.0.0-rc.6"
   },
   "devDependencies": {
     "@deepseek-ai/dsh-agent": "workspace:^",
     "@deepseek-ai/dsh-agent-loop": "workspace:^",
-    "@deepseek-ai/dsh-user-approval": "workspace:^",
     "@deepseek-ai/dsh-bash": "workspace:^",
     "@deepseek-ai/dsh-bash-local": "workspace:^",
     "@deepseek-ai/dsh-fs-local": "workspace:^",
     "@deepseek-ai/dsh-fs-policy": "workspace:^",
     "@deepseek-ai/dsh-invariants": "workspace:^",
     "@deepseek-ai/dsh-llm": "workspace:^",
+    "@deepseek-ai/dsh-permission": "workspace:^",
     "@deepseek-ai/dsh-sandbox": "workspace:^",
     "@deepseek-ai/dsh-session": "workspace:^",
     "@deepseek-ai/dsh-session-persistence": "workspace:^",
     "@deepseek-ai/dsh-session-persistence-jsonl": "workspace:^",
     "@deepseek-ai/dsh-system-prompt": "workspace:^",
+    "@deepseek-ai/dsh-tool-ask-user": "workspace:^",
     "@deepseek-ai/dsh-tool-bash": "workspace:^",
     "@deepseek-ai/dsh-tool-fs": "workspace:^",
     "@deepseek-ai/dsh-tool-todo": "workspace:^",
     "@deepseek-ai/dsh-tools": "workspace:^",
-    "@deepseek-ai/dsh-tool-ask-user": "workspace:^",
+    "@deepseek-ai/dsh-user-approval": "workspace:^",
     "@deepseek-ai/dsh-user-interaction": "workspace:^",
     "cordis": "^4.0.0-rc.6"
   }

packages/ui/acp/src/index.ts

@@ -74,10 +74,8 @@ import { assertNever, CallId } from '@deepseek-ai/dsh-llm'
 import type { Agent } from '@deepseek-ai/dsh-agent'
 import { AgentId } from '@deepseek-ai/dsh-agent'
 import { SessionId } from '@deepseek-ai/dsh-session'
-import { SANDBOX_MODES, effectiveSandboxMode, setSandboxMode } from '@deepseek-ai/dsh-bash'
-import { APPROVAL_POLICIES, effectiveApprovalPolicy, setApprovalPolicy } from '@deepseek-ai/dsh-user-approval'
-import type { SandboxMode } from '@deepseek-ai/dsh-sandbox'
-import type { ApprovalPolicy } from '@deepseek-ai/dsh-user-approval'
+// Side-effect type import: resolves `ctx.get('permission')` to the service.
+import type {} from '@deepseek-ai/dsh-permission'
 import type { SessionEvent, TodoItem, TurnEndReason } from '@deepseek-ai/dsh-session'
 import type { ToolCallView, ToolRegistry, ToolResultView, TerminalResultView } from '@deepseek-ai/dsh-tools'
 // Side-effect type import: declaration-merges `ctx.sessionPersistence` onto
@@ -326,7 +324,7 @@ interface SessionRecord {
    * overlay it truthfully, and a restart before the next turn reverts it —
    * which `session/load` then reports honestly from the log's fold.
    */
-  pendingSwitches: { sandboxMode?: SandboxMode; approvalPolicy?: ApprovalPolicy }
+  pendingSwitches: { preset?: string }
 }
 
 /**
@@ -545,46 +543,37 @@ export function apply(ctx: Context, config: AcpConfig): void {
   // --- The ACP Agent method surface -----------------------------------------
 
   /**
-   * The session config options this composition can honor, with current
-   * values folded from the AGENT'S OWN session log (`effectiveSandboxMode` /
-   * `effectiveApprovalPolicy` — the log is the per-session store, so a
-   * `session/load` reports a resumed session's overrides with no catch-up
-   * machinery), overlaid with the record's not-yet-anchored pending switches
-   * (see {@link SessionRecord.pendingSwitches}). Capability-gated like every
-   * advertised lever: the sandbox option exists only when the mounted
-   * executor confines (`ctx.get('bash')?.sandboxMode` defined), the approval
-   * option only when the approval seam is composed — both read
+   * The session config options this composition can honor: ONE `Mode`
+   * select over the composed preset table (`ctx.permission` — the product
+   * layer bundling the sandbox-mode and approval-policy knobs), its current
+   * value folded from the AGENT'S OWN session log (the log is the
+   * per-session store, so a `session/load` reports a resumed session's
+   * preset with no catch-up machinery), overlaid with the record's
+   * not-yet-anchored pending switch (see
+   * {@link SessionRecord.pendingSwitches}). Capability-gated like every
+   * advertised lever: no preset service composed, no options — read
    * opportunistically so this bridge keeps working in compositions without
-   * them.
+   * it.
    */
   const configOptionsFor = (agent: Agent, pending: SessionRecord['pendingSwitches'] = {}): SessionConfigOption[] => {
-    const options: SessionConfigOption[] = []
-    const defaultMode = ctx.get('bash')?.sandboxMode
-    if (defaultMode !== undefined) {
-      options.push({
-        id: 'sandbox-mode',
-        name: 'Sandbox',
-        description: 'The file sandbox mode bash commands in this session run under.',
-        category: 'mode',
-        type: 'select',
-        currentValue: pending.sandboxMode ?? effectiveSandboxMode(agent.session.events) ?? defaultMode,
-        options: SANDBOX_MODES.map(mode => ({ value: mode, name: mode })),
-      })
-    }
-    const approval = ctx.get('approval')
-    if (approval !== undefined) {
-      options.push({
-        id: 'approval-policy',
-        name: 'Approvals',
-        description: 'ask: permission prompts reach you; never: they are rejected automatically.',
-        type: 'select',
-        // `?? 'ask'` also shields against a provided stand-in whose config
-        // never went through the plugin schema (tests do this).
-        currentValue: pending.approvalPolicy ?? effectiveApprovalPolicy(agent.session.events) ?? approval.config.policy ?? 'ask',
-        options: APPROVAL_POLICIES.map(policy => ({ value: policy, name: policy })),
-      })
-    }
-    return options
+    const presets = ctx.get('permission')
+    if (presets === undefined) return []
+    const currentValue = pending.preset ?? presets.current(agent.session.events)
+    return [{
+      id: 'permission',
+      name: 'Permissions',
+      description: 'The session permission preset: each choice bundles a sandbox mode and an approval policy.',
+      category: 'mode',
+      type: 'select',
+      currentValue,
+      options: [
+        ...presets.names.map((name: string) => presets.optionOf(name)),
+        // The derived not-a-preset state: visible exactly while it IS the
+        // current value (a knob state outside the table), switchable FROM,
+        // never a target — set() below rejects it like any unknown name.
+        ...currentValue === 'custom' ? [presets.optionOf('custom')] : [],
+      ],
+    }]
   }
 
   /**
@@ -614,15 +603,12 @@ export function apply(ctx: Context, config: AcpConfig): void {
   const flushPendingSwitches = (rec: SessionRecord): void => {
     const pending = rec.pendingSwitches
     rec.pendingSwitches = {}
-    const events = rec.agent.session.events
-    if (pending.sandboxMode !== undefined
-      && pending.sandboxMode !== (effectiveSandboxMode(events) ?? ctx.get('bash')?.sandboxMode)) {
-      setSandboxMode(rec.agent.session, pending.sandboxMode)
-    }
-    if (pending.approvalPolicy !== undefined
-      && pending.approvalPolicy !== (effectiveApprovalPolicy(events) ?? ctx.get('approval')?.config.policy ?? 'ask')) {
-      setApprovalPolicy(rec.agent.session, pending.approvalPolicy)
-    }
+    if (pending.preset === undefined) return
+    const presets = ctx.get('permission')
+    /* v8 ignore next -- a pending preset exists only if the service answered the
+       switch; it cannot unmount between that and the next turn in any composition. */
+    if (presets === undefined) return
+    presets.set(rec.agent.session, pending.preset)
   }
 
   // Idle-accepted switches anchor at the next turn's prompt-submit: the turn
@@ -881,32 +867,22 @@ export function apply(ctx: Context, config: AcpConfig): void {
         // advertised; an id this composition never advertised (or an unknown
         // one) rejects.
         switch (params.configId) {
-          case 'sandbox-mode': {
-            const defaultMode = ctx.get('bash')?.sandboxMode
-            if (defaultMode === undefined || !SANDBOX_MODES.includes(params.value as SandboxMode)) {
-              throw invalidParams(`unknown sandbox-mode value ${JSON.stringify(params.value)}`)
+          case 'permission': {
+            const presets = ctx.get('permission')
+            if (presets === undefined) {
+              throw invalidParams(`unknown permission value ${JSON.stringify(params.value)}`)
             }
-            const value = params.value as SandboxMode
             // A no-op switch (the value the session already shows — pending,
-            // else fold, else default) is acknowledged without recording
-            // anything: clients that re-push current selections on session
-            // start must not mint override events out of thin air.
-            const current = rec.pendingSwitches.sandboxMode ?? effectiveSandboxMode(rec.agent.session.events) ?? defaultMode
-            if (value === current) break
-            if (isTurnOpen(rec.agent)) setSandboxMode(rec.agent.session, value)
-            else rec.pendingSwitches.sandboxMode = value
-            break
-          }
-          case 'approval-policy': {
-            const approval = ctx.get('approval')
-            if (approval === undefined || !APPROVAL_POLICIES.includes(params.value as ApprovalPolicy)) {
-              throw invalidParams(`unknown approval-policy value ${JSON.stringify(params.value)}`)
+            // else derived) is acknowledged FIRST and records nothing:
+            // clients re-push current selections on session start, and the
+            // derived 'custom' current is only ever valid as such an echo.
+            const current = rec.pendingSwitches.preset ?? presets.current(rec.agent.session.events)
+            if (params.value === current) break
+            if (!presets.names.includes(params.value)) {
+              throw invalidParams(`unknown permission value ${JSON.stringify(params.value)}`)
             }
-            const value = params.value as ApprovalPolicy
-            const current = rec.pendingSwitches.approvalPolicy ?? effectiveApprovalPolicy(rec.agent.session.events) ?? approval.config.policy ?? 'ask'
-            if (value === current) break
-            if (isTurnOpen(rec.agent)) setApprovalPolicy(rec.agent.session, value)
-            else rec.pendingSwitches.approvalPolicy = value
+            if (isTurnOpen(rec.agent)) presets.set(rec.agent.session, params.value)
+            else rec.pendingSwitches.preset = params.value
             break
           }
           default:

packages/ui/acp/tests/config-options.spec.ts

@@ -1,10 +1,10 @@
 /**
- * Session config options over the bridge: the two per-session knobs
- * (`sandbox-mode`, `approval-policy`) advertised from composition capability,
- * their current values folded from each session's own log, switching via
- * `session/set_config_option` (one log-only event per switch — the log is the
- * store), and a resumed session reporting its overrides back on
- * `session/load` with no catch-up machinery.
+ * Session config options over the bridge: ONE user-facing `Permissions`
+ * select (`ctx.permission`'s preset table — each choice bundles a sandbox
+ * mode and an approval policy), its current value folded from each session's
+ * own log, switching via `session/set_config_option` (the preset event plus
+ * its knob write-throughs — the log is the store), and a resumed session
+ * reporting its preset back on `session/load` with no catch-up machinery.
  */
 
 import { afterEach, beforeEach, describe, expect, it } from 'vitest'
@@ -14,50 +14,37 @@ import { join } from 'node:path'
 import { PROTOCOL_VERSION } from '@agentclientprotocol/sdk'
 import * as Invariants from '@deepseek-ai/dsh-invariants'
 import ApprovalService from '@deepseek-ai/dsh-user-approval'
-import type { ApprovalPolicy } from '@deepseek-ai/dsh-user-approval'
 import { LocalBashExecutor } from '@deepseek-ai/dsh-bash-local'
 import type { SandboxMode } from '@deepseek-ai/dsh-sandbox'
+import PermissionService from '@deepseek-ai/dsh-permission'
 import { makeBridgeHarness, textResponse, type BridgeHarness } from './harness.ts'
 
 /**
  * The REAL local executor reporting a confining default — `sandboxMode` is
  * the documented capability override point (`dsh-bash-sandbox` overrides it
  * the same way), so the bridge sees exactly what a sandboxing composition
- * advertises without this suite dragging in a kernel sandbox stack.
+ * advertises without this suite dragging in a kernel sandbox stack. It
+ * reports `workspace-write`: the shipped `request` preset's bundle, which
+ * the permission service validates the composition defaults against.
  */
 class SandboxedLocalExecutor extends LocalBashExecutor {
   override get sandboxMode(): SandboxMode {
-    return 'read-only'
+    return 'workspace-write'
   }
 }
 
-/** The exact option payloads the bridge advertises (pinned verbatim). */
-function sandboxOption(currentValue: SandboxMode): object {
+/** The exact option payload the bridge advertises (pinned verbatim). */
+function permissionOption(currentValue: string): object {
   return {
-    id: 'sandbox-mode',
-    name: 'Sandbox',
-    description: 'The file sandbox mode bash commands in this session run under.',
+    id: 'permission',
+    name: 'Permissions',
+    description: 'The session permission preset: each choice bundles a sandbox mode and an approval policy.',
     category: 'mode',
     type: 'select',
     currentValue,
     options: [
-      { value: 'read-only', name: 'read-only' },
-      { value: 'workspace-write', name: 'workspace-write' },
-      { value: 'danger-full-access', name: 'danger-full-access' },
-    ],
-  }
-}
-
-function approvalOption(currentValue: ApprovalPolicy): object {
-  return {
-    id: 'approval-policy',
-    name: 'Approvals',
-    description: 'ask: permission prompts reach you; never: they are rejected automatically.',
-    type: 'select',
-    currentValue,
-    options: [
-      { value: 'ask', name: 'ask' },
-      { value: 'never', name: 'never' },
+      { value: 'request', name: 'Request', description: 'Write inside the workspace; anything wider asks for your approval.' },
+      { value: 'yolo', name: 'YOLO', description: 'Full file access, no approval prompts.' },
     ],
   }
 }
@@ -75,144 +62,113 @@ describe('acp bridge — session config options', () => {
     await rm(storageDir, { recursive: true, force: true })
   })
 
-  /** A harness whose composition can honor both knobs (sandboxed executor + approval seam). */
-  async function bothKnobs(options: { policy?: ApprovalPolicy; script?: NonNullable<Parameters<typeof makeBridgeHarness>[0]>['script'] } = {}): Promise<BridgeHarness> {
+  /** A harness composing the full preset stack (confining executor + approval seam + permission presets). */
+  async function presetStack(options: { script?: NonNullable<Parameters<typeof makeBridgeHarness>[0]>['script'] } = {}): Promise<BridgeHarness> {
     const harness = await makeBridgeHarness({ storageDir, ...options.script !== undefined ? { script: options.script } : {} })
     // The dev invariants police turn-enclosure: an idle switch that appended
     // outside a turn would throw right here in the suite, not in production.
     await harness.ctx.plugin(Invariants)
     await harness.ctx.plugin(SandboxedLocalExecutor, { timeoutMs: 10_000 })
-    await harness.ctx.plugin(ApprovalService, options.policy !== undefined ? { policy: options.policy } : {})
+    await harness.ctx.plugin(ApprovalService)
+    await harness.ctx.plugin(PermissionService)
     await harness.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} })
     return harness
   }
 
-  it('advertises no configOptions in a composition with neither knob', async () => {
+  it('advertises no configOptions without the permission service — even with both knobs composed', async () => {
     h = await makeBridgeHarness({ storageDir })
-    await h.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} })
-    const res = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
-    expect(res.configOptions).toBeUndefined()
-  })
-
-  it('a non-confining executor advertises no sandbox option (nothing would honor it)', async () => {
-    h = await makeBridgeHarness({ storageDir, withBash: true })
+    await h.ctx.plugin(SandboxedLocalExecutor, { timeoutMs: 10_000 })
     await h.ctx.plugin(ApprovalService)
     await h.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} })
     const res = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
-    expect(res.configOptions).toEqual([approvalOption('ask')])
+    expect(res.configOptions).toBeUndefined()
   })
 
-  it('advertises both knobs with capability-derived currents (config default included)', async () => {
-    h = await bothKnobs({ policy: 'never' })
+  it('advertises the Permissions select with the default preset current', async () => {
+    h = await presetStack()
     const res = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
-    expect(res.configOptions).toEqual([sandboxOption('read-only'), approvalOption('never')])
+    expect(res.configOptions).toEqual([permissionOption('request')])
   })
 
   it('an idle switch is pending (overlaid, not yet logged), then anchors INSIDE the next turn', async () => {
-    h = await bothKnobs({ script: [textResponse('ok')] })
+    h = await presetStack({ script: [textResponse('ok')] })
     const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
 
-    const afterSandbox = await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' })
-    expect(afterSandbox.configOptions).toEqual([sandboxOption('workspace-write'), approvalOption('ask')])
-    const afterApproval = await h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'never' })
-    expect(afterApproval.configOptions).toEqual([sandboxOption('workspace-write'), approvalOption('never')])
+    const after = await h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'yolo' })
+    expect(after.configOptions).toEqual([permissionOption('yolo')])
 
-    // Idle: nothing in the log yet — turn-enclosure forbids a bare append
-    // (the dev invariants in this suite would throw), so the switch lives on
-    // the record until a turn opens.
+    // Idle: nothing in the log yet — turn-enclosure forbids a bare append.
     const session = h.ctx.agents.list()[0]?.session
-    expect(session?.events.some(e => e.type === 'bash/sandbox-mode' || e.type === 'approval/policy')).toBe(false)
+    expect(session?.events.some(e => e.type === 'permission/preset' || e.type === 'bash/sandbox-mode' || e.type === 'approval/policy')).toBe(false)
 
-    // The next turn anchors both switches inside itself, one event per knob.
     await h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'anchor' }] })
     const events = session?.events ?? []
-    expect(events.filter(e => e.type === 'bash/sandbox-mode').map(e => e.data)).toEqual([{ mode: 'workspace-write' }])
+    expect(events.filter(e => e.type === 'permission/preset').map(e => e.data)).toEqual([{ preset: 'yolo' }])
+    expect(events.filter(e => e.type === 'bash/sandbox-mode').map(e => e.data)).toEqual([{ mode: 'danger-full-access' }])
     expect(events.filter(e => e.type === 'approval/policy').map(e => e.data)).toEqual([{ policy: 'never' }])
     const turnStart = events.findIndex(e => e.type === 'turn/start')
-    const anchored = events.findIndex(e => e.type === 'bash/sandbox-mode')
+    const anchored = events.findIndex(e => e.type === 'permission/preset')
     expect(turnStart).toBeGreaterThanOrEqual(0)
     expect(anchored).toBeGreaterThan(turnStart)
   })
 
-  it('an idle flip-flop anchors as ONE event (last write per knob wins)', async () => {
-    h = await bothKnobs({ script: [textResponse('ok')] })
+  it('an idle flip-flop anchors as ONE switch (last write wins)', async () => {
+    h = await presetStack({ script: [textResponse('ok')] })
     const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
-    await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' })
-    await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'danger-full-access' })
+    await h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'yolo' })
+    const again = await h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'yolo' })
+    expect(again.configOptions).toEqual([permissionOption('yolo')])
     await h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'anchor' }] })
     const events = h.ctx.agents.list()[0]?.session.events ?? []
-    expect(events.filter(e => e.type === 'bash/sandbox-mode').map(e => e.data)).toEqual([{ mode: 'danger-full-access' }])
-    // Idle again AFTER a completed turn (the log now ends in turn/end): a new
-    // switch pends rather than appending outside the closed turn.
-    const again = await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'read-only' })
-    expect(again.configOptions?.find(option => option.id === 'sandbox-mode')).toMatchObject({ currentValue: 'read-only' })
-    expect(events.filter(e => e.type === 'bash/sandbox-mode')).toHaveLength(1)
+    expect(events.filter(e => e.type === 'permission/preset')).toHaveLength(1)
+    // Between turns (a closed turn in the log) a switch still pends — the
+    // enclosure fold walks past the turn/end — and anchors with the NEXT turn.
+    await h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'request' })
+    expect(h.ctx.agents.list()[0]?.session.events.filter(e => e.type === 'permission/preset')).toHaveLength(1)
   })
 
-  it('a no-op switch (the value already shown) records nothing and keeps a live pending', async () => {
-    h = await bothKnobs({ script: [textResponse('ok')] })
+  it('a net-zero idle flip-flop anchors NOTHING (switches are recorded, select clicks are not)', async () => {
+    h = await presetStack({ script: [textResponse('ok')] })
     const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
-    // Re-pushing the composition default (what clients that echo current
-    // selections on session start do) must not mint an override event.
-    const echo = await h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'ask' })
-    expect(echo.configOptions?.find(option => option.id === 'approval-policy')).toMatchObject({ currentValue: 'ask' })
-    // Re-sending a PENDING value keeps the pending switch alive (it is what
-    // the session shows), rather than cancelling it.
-    await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' })
-    const repeat = await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' })
-    expect(repeat.configOptions?.find(option => option.id === 'sandbox-mode')).toMatchObject({ currentValue: 'workspace-write' })
+    await h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'yolo' })
+    const back = await h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'request' })
+    expect(back.configOptions).toEqual([permissionOption('request')])
     await h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'anchor' }] })
     const events = h.ctx.agents.list()[0]?.session.events ?? []
-    expect(events.filter(e => e.type === 'approval/policy')).toHaveLength(0)
-    expect(events.filter(e => e.type === 'bash/sandbox-mode').map(e => e.data)).toEqual([{ mode: 'workspace-write' }])
+    expect(events.some(e => e.type === 'permission/preset' || e.type === 'bash/sandbox-mode' || e.type === 'approval/policy')).toBe(false)
   })
 
-  it('a net-zero idle flip-flop anchors NOTHING (switches are recorded, select clicks are not)', async () => {
-    h = await bothKnobs({ script: [textResponse('ok')] })
+  it('a no-op switch (the value already shown) records nothing and keeps a live pending', async () => {
+    h = await presetStack({ script: [textResponse('ok')] })
     const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
-    await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' })
-    const back = await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'read-only' })
-    expect(back.configOptions?.find(option => option.id === 'sandbox-mode')).toMatchObject({ currentValue: 'read-only' })
+    const echo = await h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'request' })
+    expect(echo.configOptions).toEqual([permissionOption('request')])
+    await h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'yolo' })
+    const repeat = await h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'yolo' })
+    expect(repeat.configOptions).toEqual([permissionOption('yolo')])
     await h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'anchor' }] })
     const events = h.ctx.agents.list()[0]?.session.events ?? []
-    expect(events.filter(e => e.type === 'bash/sandbox-mode')).toHaveLength(0)
+    expect(events.filter(e => e.type === 'permission/preset').map(e => e.data)).toEqual([{ preset: 'yolo' }])
   })
 
   it('a mid-turn switch anchors immediately (the open turn encloses it)', async () => {
-    h = await bothKnobs({ script: ['hang'] })
+    h = await presetStack({ script: ['hang'] })
     const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
     const hung = h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'go' }] })
     // Give the loop a tick to open the turn (the turns.spec hang idiom).
     await new Promise(resolve => setTimeout(resolve, 30))
-    await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' })
-    await h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'never' })
+    await h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'yolo' })
     const events = h.ctx.agents.list()[0]?.session.events ?? []
     const turnStart = events.findIndex(e => e.type === 'turn/start')
-    const anchored = events.findIndex(e => e.type === 'bash/sandbox-mode')
+    const anchored = events.findIndex(e => e.type === 'permission/preset')
     expect(turnStart).toBeGreaterThanOrEqual(0)
     expect(anchored).toBeGreaterThan(turnStart)
+    expect(events.some(e => e.type === 'bash/sandbox-mode')).toBe(true)
     expect(events.some(e => e.type === 'approval/policy')).toBe(true)
     await h.client.cancel({ sessionId })
     await hung
   })
 
-  it('tolerates a provided approval stand-in whose config skipped the plugin schema', async () => {
-    h = await makeBridgeHarness({ storageDir, script: [textResponse('ok')] })
-    h.ctx.provide('approval', { config: {} } as unknown as InstanceType<typeof ApprovalService>)
-    await h.client.initialize({ protocolVersion: PROTOCOL_VERSION, clientCapabilities: {} })
-    const res = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
-    expect(res.configOptions).toEqual([approvalOption('ask')])
-    const sessionId = res.sessionId
-    // The schema-less config also shields the no-op guard ('ask' by the ?? fallback)…
-    const echo = await h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'ask' })
-    expect(echo.configOptions).toEqual([approvalOption('ask')])
-    // …and the anchor-time comparison: a real switch under the stand-in still anchors.
-    await h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'never' })
-    await h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'anchor' }] })
-    const events = h.ctx.agents.list()[0]?.session.events ?? []
-    expect(events.filter(e => e.type === 'approval/policy').map(e => e.data)).toEqual([{ policy: 'never' }])
-  })
-
   it('rejects unknown ids, unadvertised ids, boolean values, and out-of-vocabulary values', async () => {
     h = await makeBridgeHarness({ storageDir })
     await h.ctx.plugin(ApprovalService)
@@ -221,40 +177,72 @@ describe('acp bridge — session config options', () => {
 
     await expect(h.client.setSessionConfigOption({ sessionId, configId: 'reasoning-effort', value: 'max' }))
       .rejects.toThrow(/unknown config option/)
-    // sandbox-mode exists as a concept but THIS composition never advertised it.
-    await expect(h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'workspace-write' }))
-      .rejects.toThrow(/unknown sandbox-mode value/)
-    await expect(h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', type: 'boolean', value: true }))
+    // `permission` exists as a concept but THIS composition never advertised it.
+    await expect(h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'yolo' }))
+      .rejects.toThrow(/unknown permission value/)
+    await expect(h.client.setSessionConfigOption({ sessionId, configId: 'permission', type: 'boolean', value: true }))
       .rejects.toThrow(/select; boolean values are not accepted/)
-    await expect(h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'always' }))
-      .rejects.toThrow(/unknown approval-policy value/)
+  })
+
+  it('rejects an out-of-vocabulary preset on an advertising composition', async () => {
+    h = await presetStack()
+    const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
+    await expect(h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'plan' }))
+      .rejects.toThrow(/unknown permission value/)
   })
 
   it('a switch in one session never leaks into a concurrent one (state and pending both per-session)', async () => {
-    h = await bothKnobs()
+    h = await presetStack()
     const a = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
     const b = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
-    await h.client.setSessionConfigOption({ sessionId: a.sessionId, configId: 'sandbox-mode', value: 'danger-full-access' })
-    // B sees its own composition defaults, not A's pending switch...
-    const bAfter = await h.client.setSessionConfigOption({ sessionId: b.sessionId, configId: 'approval-policy', value: 'never' })
-    expect(bAfter.configOptions).toEqual([sandboxOption('read-only'), approvalOption('never')])
+    await h.client.setSessionConfigOption({ sessionId: a.sessionId, configId: 'permission', value: 'yolo' })
+    // B sees the composition default, not A's pending switch...
+    const bAfter = await h.client.setSessionConfigOption({ sessionId: b.sessionId, configId: 'permission', value: 'request' })
+    expect(bAfter.configOptions).toEqual([permissionOption('request')])
     // ...and A keeps its own state, untouched by B's.
-    const aAfter = await h.client.setSessionConfigOption({ sessionId: a.sessionId, configId: 'sandbox-mode', value: 'danger-full-access' })
-    expect(aAfter.configOptions).toEqual([sandboxOption('danger-full-access'), approvalOption('ask')])
+    const aAfter = await h.client.setSessionConfigOption({ sessionId: a.sessionId, configId: 'permission', value: 'yolo' })
+    expect(aAfter.configOptions).toEqual([permissionOption('yolo')])
+  })
+
+  it('a knob drifted outside the table derives a visible-but-untargetable custom current', async () => {
+    h = await presetStack()
+    const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
+    // Drift a knob out from under the table (a plugin writing the knob
+    // directly — the raw setters remain public mechanism), inside its own
+    // turn: the dev invariants enforce turn-enclosure here too.
+    const agent = h.ctx.agents.list()[0]
+    if (agent === undefined) throw new Error('expected an agent')
+    agent.session.append('turn/start', { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } })
+    agent.session.append('bash/sandbox-mode', { mode: 'read-only' })
+    agent.session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
+    // The echo of the derived current is a no-op, not an unknown-value error…
+    const echo = await h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'custom' })
+    const option = echo.configOptions?.[0]
+    expect(option).toMatchObject({ currentValue: 'custom' })
+    if (option === undefined || !('options' in option)) throw new Error('expected a select option')
+    expect(option.options.map(o => 'value' in o ? o.value : o)).toEqual(['request', 'yolo', 'custom'])
+    // …while custom as a TARGET from a real preset stays rejected: switching
+    // away is ordinary, and the custom entry disappears from the options.
+    const away = await h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'yolo' })
+    const afterOption = away.configOptions?.[0]
+    expect(afterOption).toMatchObject({ currentValue: 'yolo' })
+    if (afterOption === undefined || !('options' in afterOption)) throw new Error('expected a select option')
+    expect(afterOption.options.map(o => 'value' in o ? o.value : o)).toEqual(['request', 'yolo'])
+    await expect(h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'custom' }))
+      .rejects.toThrow(/unknown permission value/)
   })
 
-  it('session/load reports a resumed session\'s overrides from its own log', async () => {
-    h = await bothKnobs({ script: [textResponse('ok')] })
+  it('session/load reports a resumed session\'s preset from its own log', async () => {
+    h = await presetStack({ script: [textResponse('ok')] })
     const { sessionId } = await h.client.newSession({ cwd: process.cwd(), mcpServers: [] })
-    await h.client.setSessionConfigOption({ sessionId, configId: 'sandbox-mode', value: 'danger-full-access' })
-    await h.client.setSessionConfigOption({ sessionId, configId: 'approval-policy', value: 'never' })
+    await h.client.setSessionConfigOption({ sessionId, configId: 'permission', value: 'yolo' })
     // One turn checkpoints the log (the switch events flush with it).
     await h.client.prompt({ sessionId, prompt: [{ type: 'text', text: 'persist me' }] })
     await h.dispose()
     h = undefined
 
-    loader = await bothKnobs()
+    loader = await presetStack()
     const res = await loader.client.loadSession({ sessionId, cwd: process.cwd(), mcpServers: [] })
-    expect(res.configOptions).toEqual([sandboxOption('danger-full-access'), approvalOption('never')])
+    expect(res.configOptions).toEqual([permissionOption('yolo')])
   })
 })

packages/ui/acp/tsconfig.json

@@ -38,6 +38,9 @@
     {
       "path": "../user-approval"
     },
+    {
+      "path": "../permission"
+    },
     {
       "path": "../../sandbox/sandbox"
     },

packages/ui/permission/README.md

@@ -0,0 +1,7 @@
+# @deepseek-ai/dsh-permission
+
+User-facing permission presets. Owns the `ctx.permission` service ([`PermissionService`](src/index.ts)): a config-defined preset table — by default `request` (`workspace-write` + `ask`) and `yolo` (`danger-full-access` + `never`) — where each name bundles the two mechanism knobs, `bash/sandbox-mode` and `approval/policy`. The product surface (the ACP bridge's single `Permissions` select) advertises `names` and calls `set()`; the mechanism tiers stay orthogonal capabilities that never learn the product vocabulary.
+
+A switch WRITES THROUGH: `set(session, name)` appends one log-only `permission/preset` event when the name differs from the session's current preset (the audit fact reverse-mapping cannot recover — two presets may share knob values and differ only in composed policy, the planned `agent` preset being the standing example), then each knob event through its own THE-write-path setter, skipping values the session already effectively has — a net-zero switch appends nothing. The current preset DERIVES from the effective knob values (fold ?? composition default per knob): the last-chosen preset when its bundle still matches (presets may share bundles — the fold breaks the tie), else the first matching table entry, else the reserved `custom` — the honest not-a-preset state, shown as the current value only while it holds, switchable FROM and never a target. Every existing knob consumer (executor stamping, the approval gate, narrators, resume) keeps reading its own fold, untouched.
+
+Composing it requires a confining `ctx.bash` executor and the `ctx.approval` seam; a table entry named `custom` throws at load (the name is reserved), while composition defaults outside the table are not an error — a zero-event session simply derives `custom`. See [the acp-agent example's sandbox variant](../../../examples/acp-agent/) for the composed leaf and [the sandbox RFC § Per-session modes](../../../docs/rfc/implemented/feature/2026-07-06-sandbox.md) for the switching design this layers over.

packages/ui/permission/package.json

@@ -0,0 +1,41 @@
+{
+  "name": "@deepseek-ai/dsh-permission",
+  "description": "User-facing permission presets (ctx.permission) for the DeepSeek Harness: one product-level Permissions select bundling the sandbox-mode and approval-policy knobs, written through to their own session events",
+  "version": "0.0.1",
+  "private": true,
+  "type": "module",
+  "main": "lib/index.js",
+  "types": "lib/types/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./lib/types/index.d.ts",
+      "default": "./lib/index.js"
+    },
+    "./src/*": "./src/*",
+    "./package.json": "./package.json"
+  },
+  "files": [
+    "lib/index.js",
+    "lib/types/**/*.d.ts",
+    "lib/types/**/*.d.ts.map",
+    "src"
+  ],
+  "license": "BSD-3-Clause",
+  "peerDependencies": {
+    "@deepseek-ai/dsh-bash": "^0.0.1",
+    "@deepseek-ai/dsh-sandbox": "^0.0.1",
+    "@deepseek-ai/dsh-session": "^0.0.1",
+    "@deepseek-ai/dsh-user-approval": "^0.0.1",
+    "cordis": "^4.0.0-rc.6"
+  },
+  "dependencies": {
+    "schemastery": "^3.18.0"
+  },
+  "devDependencies": {
+    "@deepseek-ai/dsh-bash": "workspace:^",
+    "@deepseek-ai/dsh-sandbox": "workspace:^",
+    "@deepseek-ai/dsh-session": "workspace:^",
+    "@deepseek-ai/dsh-user-approval": "workspace:^",
+    "cordis": "^4.0.0-rc.6"
+  }
+}

packages/ui/permission/src/index.ts

@@ -0,0 +1,236 @@
+/**
+ * User-facing PERMISSION PRESETS: one product-level knob over the two
+ * mechanism knobs. A preset names a bundle — its sandbox mode
+ * (`bash/sandbox-mode`) and its approval policy (`approval/policy`) — so a
+ * user picks `request` or `yolo` where the mechanism tiers stay orthogonal
+ * capabilities. Switching a preset WRITES THROUGH: one `permission/preset` event
+ * records the chosen bundle (the audit fact reverse-mapping cannot recover —
+ * two presets may share knob values and differ only in composed policy, the
+ * planned `agent` preset being the standing example), then each knob event
+ * follows through its own THE-write-path setter, skipping values the session
+ * already effectively has. Every existing consumer (executor stamping, the
+ * approval gate, narrators, resume) keeps reading its own knob fold,
+ * untouched.
+ *
+ * @module dsh-permission
+ */
+
+import { Context, Service } from 'cordis'
+import z from 'schemastery'
+import type { Session, SessionEvent } from '@deepseek-ai/dsh-session'
+import type { SandboxMode } from '@deepseek-ai/dsh-sandbox'
+import { SANDBOX_MODES, effectiveSandboxMode, setSandboxMode } from '@deepseek-ai/dsh-bash'
+import type { ApprovalPolicy } from '@deepseek-ai/dsh-user-approval'
+import { APPROVAL_POLICIES, effectiveApprovalPolicy, setApprovalPolicy } from '@deepseek-ai/dsh-user-approval'
+
+declare module 'cordis' {
+  interface Context {
+    permission: PermissionService
+  }
+}
+
+declare module '@deepseek-ai/dsh-session' {
+  interface SessionEventMap {
+    /**
+     * The session's permission preset was switched — log-only (the
+     * `bash/sandbox-mode` precedent): durable and replayable, never in the
+     * model transcript. The LAST such event is the session's preset
+     * ({@link effectivePermissionPreset}); the knob events the switch wrote
+     * through follow it in the same turn, and they — not this record of the
+     * user's choice — are what execution reads.
+     */
+    'permission/preset': { preset: string }
+  }
+}
+
+/**
+ * One preset's knob bundle — the sandbox mode and approval policy a session
+ * runs under while the preset is active — plus its presentation.
+ */
+export interface PresetSpec {
+  /** The `bash/sandbox-mode` value the preset writes through. */
+  sandbox: SandboxMode
+  /** The `approval/policy` value the preset writes through. */
+  approval: ApprovalPolicy
+  /** The display label a client shows for this preset; the raw table key when omitted. */
+  name?: string
+  /** One user-facing sentence on what the preset means; omitted when not configured. */
+  description?: string
+}
+
+/** The select-option shape a presentation layer advertises for one preset (or for the derived `custom` state). */
+export interface PresetOption {
+  /** The machine value (`session/set_config_option` vocabulary): the table key, or `custom`. */
+  value: string
+  /** The display label. */
+  name: string
+  /** One user-facing sentence on what the value means. */
+  description?: string
+}
+
+/**
+ * The derived not-a-preset state: the session's effective knob values match
+ * no table entry (composition defaults outside the table, or a knob moved
+ * out from under the last-chosen preset). Never a switch target and never
+ * an event payload — {@link PermissionService.current} derives it, and the
+ * presentation layer shows it as a selectable-FROM-only current value.
+ */
+export const CUSTOM_PRESET = 'custom'
+
+/**
+ * The session's permission-preset override: the last `permission/preset` event in the
+ * log, or undefined when the session never switched (callers apply the
+ * plugin's configured default). The pure fold — resume needs no catch-up
+ * machinery because replaying the log IS the state.
+ * @param events - session events in log order (other event types are skipped).
+ * @returns the preset of the last switch event, or undefined without one.
+ */
+export function effectivePermissionPreset(events: readonly SessionEvent[]): string | undefined {
+  for (let index = events.length - 1; index >= 0; index -= 1) {
+    const event = events[index] as SessionEvent
+    if (event.type === 'permission/preset') return event.data.preset
+  }
+  return undefined
+}
+
+/** The {@link PermissionService} config: the deployment's preset table. */
+export interface Config {
+  /**
+   * The preset table: name → knob bundle. Defaults to `request`
+   * (workspace-write + ask) and `yolo` (danger-full-access + never). The
+   * name `custom` is reserved for the derived not-a-preset state.
+   */
+  presets?: Record<string, PresetSpec>
+}
+
+/**
+ * The permission service (`ctx.permission`). Owns the deployment's preset
+ * table and THE write path for preset switches; presentation layers (the ACP
+ * bridge's single `Permissions` select) advertise {@link names} and call
+ * {@link set}. Composing it REQUIRES both mechanism knobs — a confining
+ * `ctx.bash` executor and the `ctx.approval` seam. A knob state matching no
+ * table entry is not an error but the derived {@link CUSTOM_PRESET} state:
+ * shown as the current value, never a switch target.
+ */
+export class PermissionService extends Service {
+  // Inline schema call: the config catalog walks `static Config` statically.
+  static Config: z<Config> = z.object({
+    presets: z.dict(z.object({
+      sandbox: z.union(SANDBOX_MODES as SandboxMode[]).required(),
+      approval: z.union(APPROVAL_POLICIES as ApprovalPolicy[]).required(),
+      name: z.string(),
+      description: z.string(),
+    })).default({
+      request: {
+        sandbox: 'workspace-write', approval: 'ask',
+        name: 'Request', description: 'Write inside the workspace; anything wider asks for your approval.',
+      },
+      yolo: {
+        sandbox: 'danger-full-access', approval: 'never',
+        name: 'YOLO', description: 'Full file access, no approval prompts.',
+      },
+    }),
+  })
+
+  static inject = ['bash', 'approval']
+
+  private readonly presets: Record<string, PresetSpec>
+
+  constructor(ctx: Context, config: Config) {
+    super(ctx, 'permission')
+    // The schema defaulted the table — the cast records that runtime fact.
+    this.presets = config.presets as Record<string, PresetSpec>
+    if (CUSTOM_PRESET in this.presets) {
+      throw new Error(`permission: "${CUSTOM_PRESET}" is reserved for the derived not-a-preset state and cannot name a table entry`)
+    }
+    if (ctx.bash.sandboxMode === undefined) {
+      throw new Error('permission: the mounted bash executor does not confine (no sandboxMode) — presets bundle a sandbox mode, so composing this plugin over an unconfined executor is a misconfiguration')
+    }
+  }
+
+  /**
+   * The advertised preset names, in the preset table's declaration order.
+   * @returns every switchable preset name.
+   */
+  get names(): readonly string[] {
+    return Object.keys(this.presets)
+  }
+
+  /**
+   * The preset a session is on right now, derived from the EFFECTIVE knob
+   * values (fold ?? composition default per knob): the last-chosen preset
+   * when its bundle still matches (presets may share bundles — the fold
+   * breaks the tie), else the first table entry that matches, else
+   * {@link CUSTOM_PRESET} — a mismatch is a state, not an error.
+   * @param events - the session's events in log order.
+   * @returns the effective preset name, or `custom` when nothing matches.
+   */
+  current(events: readonly SessionEvent[]): string {
+    const sandbox = effectiveSandboxMode(events) ?? this.ctx.bash.sandboxMode
+    const approval = effectiveApprovalPolicy(events) ?? this.ctx.approval.config.policy ?? 'ask'
+    const matches = (spec: PresetSpec): boolean => spec.sandbox === sandbox && spec.approval === approval
+    const folded = effectivePermissionPreset(events)
+    if (folded !== undefined) {
+      const spec = this.presets[folded]
+      if (spec !== undefined && matches(spec)) return folded
+    }
+    for (const [name, spec] of Object.entries(this.presets)) {
+      if (matches(spec)) return name
+    }
+    return CUSTOM_PRESET
+  }
+
+  /**
+   * A preset's knob bundle, for consumers presenting or validating one.
+   * @param name - the preset name to resolve.
+   * @returns the bundle; throws on a name outside the table (fails loud —
+   *   an unvalidated caller handed the service an unknown preset).
+   */
+  resolve(name: string): PresetSpec {
+    const spec = this.presets[name]
+    if (spec === undefined) {
+      throw new Error(`permission: unknown preset "${name}" (known: ${Object.keys(this.presets).join(', ')})`)
+    }
+    return spec
+  }
+
+  /**
+   * The select-option presentation of one advertisable value: a table entry
+   * (label/description from its spec, the raw key standing in for a missing
+   * label) or the derived {@link CUSTOM_PRESET} with its fixed presentation.
+   * @param name - a table key, or `custom`.
+   * @returns the option a client renders; throws on any other name.
+   */
+  optionOf(name: string): PresetOption {
+    if (name === CUSTOM_PRESET) {
+      return { value: CUSTOM_PRESET, name: 'Custom', description: 'A hand-set knob combination outside the preset table.' }
+    }
+    const spec = this.resolve(name)
+    return { value: name, name: spec.name ?? name, ...spec.description !== undefined ? { description: spec.description } : {} }
+  }
+
+  /**
+   * THE write path for a preset switch: appends one `permission/preset` event when
+   * `name` differs from the session's current preset, then writes each knob
+   * through its own setter, skipping values the session already effectively
+   * has — a net-zero switch appends nothing (the log records switches, not
+   * select clicks).
+   * @param session - the session the switch belongs to.
+   * @param name - the preset to switch to (validated via {@link resolve}).
+   */
+  set(session: Session, name: string): void {
+    const spec = this.resolve(name)
+    if (this.current(session.events) !== name) {
+      session.append('permission/preset', { preset: name })
+    }
+    const events = session.events
+    if (spec.sandbox !== (effectiveSandboxMode(events) ?? this.ctx.bash.sandboxMode)) {
+      setSandboxMode(session, spec.sandbox)
+    }
+    if (spec.approval !== (effectiveApprovalPolicy(events) ?? this.ctx.approval.config.policy ?? 'ask')) {
+      setApprovalPolicy(session, spec.approval)
+    }
+  }
+}
+
+export default PermissionService

packages/ui/permission/tests/permission.spec.ts

@@ -0,0 +1,147 @@
+import { describe, expect, it } from 'vitest'
+import { Context } from 'cordis'
+import { Session, SessionId } from '@deepseek-ai/dsh-session'
+import type { SandboxMode } from '@deepseek-ai/dsh-sandbox'
+import type { ApprovalPolicy } from '@deepseek-ai/dsh-user-approval'
+import PermissionService, { CUSTOM_PRESET, effectivePermissionPreset } from '@deepseek-ai/dsh-permission'
+import type { Config } from '@deepseek-ai/dsh-permission'
+
+/** Mount the service over stand-in bash/approval capabilities (the two facts it validates against). */
+async function mounted(options: {
+  config?: Config
+  bashDefault?: SandboxMode | undefined
+  approvalDefault?: ApprovalPolicy | undefined
+} = {}): Promise<Context> {
+  const ctx = new Context()
+  ctx.provide('bash', { sandboxMode: 'bashDefault' in options ? options.bashDefault : 'workspace-write' })
+  ctx.provide('approval', { config: { policy: 'approvalDefault' in options ? options.approvalDefault : 'ask' } })
+  await ctx.plugin(PermissionService, options.config ?? {})
+  return ctx
+}
+
+/** A real Session seeded with one opened turn (events append without ceremony in unit scope). */
+function freshSession(id: string): Session {
+  return new Session(SessionId(id))
+}
+
+describe('effectivePermissionPreset', () => {
+  it('folds to the last event, or undefined without one', () => {
+    const session = freshSession('sess-fold')
+    expect(effectivePermissionPreset(session.events)).toBeUndefined()
+    session.append('permission/preset', { preset: 'yolo' })
+    session.append('permission/preset', { preset: 'request' })
+    expect(effectivePermissionPreset(session.events)).toBe('request')
+  })
+})
+
+describe('PermissionService', () => {
+  it('advertises the preset table in declaration order and resolves bundles', async () => {
+    const ctx = await mounted()
+    expect(ctx.permission.names).toEqual(['request', 'yolo'])
+    expect(ctx.permission.resolve('yolo')).toMatchObject({ sandbox: 'danger-full-access', approval: 'never' })
+    expect(() => ctx.permission.resolve('plan')).toThrow(/unknown preset "plan"/)
+  })
+
+  it('current() derives from the effective knobs: composition defaults hit request, a switch hits its preset', async () => {
+    const ctx = await mounted()
+    const session = freshSession('sess-current')
+    expect(ctx.permission.current(session.events)).toBe('request')
+    ctx.permission.set(session, 'yolo')
+    expect(ctx.permission.current(session.events)).toBe('yolo')
+  })
+
+  it('a knob state matching no table entry derives custom — a state, not an error', async () => {
+    const ctx = await mounted()
+    const session = freshSession('sess-custom')
+    session.append('bash/sandbox-mode', { mode: 'read-only' })
+    expect(ctx.permission.current(session.events)).toBe(CUSTOM_PRESET)
+    // Switching FROM custom is an ordinary write-through; custom itself is
+    // never a target.
+    ctx.permission.set(session, 'yolo')
+    expect(ctx.permission.current(session.events)).toBe('yolo')
+    expect(() => ctx.permission.resolve(CUSTOM_PRESET)).toThrow(/unknown preset/)
+  })
+
+  it('composition defaults outside the table derive custom at zero events', async () => {
+    const ctx = await mounted({ approvalDefault: 'never' })
+    const session = freshSession('sess-defaults-custom')
+    expect(ctx.permission.current(session.events)).toBe(CUSTOM_PRESET)
+  })
+
+  it('the fold breaks bundle ties; a stale fold no longer matching falls back to table order', async () => {
+    const ctx = await mounted({ config: { presets: {
+      request: { sandbox: 'workspace-write', approval: 'ask' },
+      agentish: { sandbox: 'workspace-write', approval: 'ask' },
+      yolo: { sandbox: 'danger-full-access', approval: 'never' },
+    } } })
+    const session = freshSession('sess-tie')
+    // Same bundle as request, chosen explicitly: the fold names it.
+    ctx.permission.set(session, 'agentish')
+    expect(ctx.permission.current(session.events)).toBe('agentish')
+    // A knob drifts: the fold's bundle no longer matches → reverse map wins.
+    session.append('approval/policy', { policy: 'never' })
+    session.append('bash/sandbox-mode', { mode: 'danger-full-access' })
+    expect(ctx.permission.current(session.events)).toBe('yolo')
+  })
+
+  it('set() writes through: one preset event plus both knob events', async () => {
+    const ctx = await mounted()
+    const session = freshSession('sess-set')
+    ctx.permission.set(session, 'yolo')
+    expect(session.events.map(e => [e.type, e.data])).toEqual([
+      ['permission/preset', { preset: 'yolo' }],
+      ['bash/sandbox-mode', { mode: 'danger-full-access' }],
+      ['approval/policy', { policy: 'never' }],
+    ])
+  })
+
+  it('set() to the current preset is a no-op when the knobs already match (clicks are not switches)', async () => {
+    const ctx = await mounted()
+    const session = freshSession('sess-noop')
+    ctx.permission.set(session, 'request')
+    expect(session.events).toHaveLength(0)
+  })
+
+  it('re-asserting a preset from a drifted (custom) state re-records the choice and repairs the knob', async () => {
+    const ctx = await mounted()
+    const session = freshSession('sess-drift')
+    ctx.permission.set(session, 'yolo')
+    // A knob drifts out from under the preset (a direct setter call, a test
+    // scenario): the session derives custom, and re-asserting the preset is
+    // a real switch again — choice re-recorded, only the drifted knob moves.
+    session.append('bash/sandbox-mode', { mode: 'read-only' })
+    ctx.permission.set(session, 'yolo')
+    const tail = session.events.slice(4)
+    expect(tail.map(e => [e.type, e.data])).toEqual([
+      ['permission/preset', { preset: 'yolo' }],
+      ['bash/sandbox-mode', { mode: 'danger-full-access' }],
+    ])
+  })
+
+  it('rejects composition over a non-confining executor at load', async () => {
+    await expect(mounted({ bashDefault: undefined }))
+      .rejects.toThrow(/does not confine/)
+  })
+
+  it('optionOf() presents shipped labels/descriptions, falls back to the raw key, and fixes custom', async () => {
+    const ctx = await mounted()
+    expect(ctx.permission.optionOf('yolo')).toEqual({ value: 'yolo', name: 'YOLO', description: 'Full file access, no approval prompts.' })
+    expect(ctx.permission.optionOf('custom')).toEqual({ value: 'custom', name: 'Custom', description: 'A hand-set knob combination outside the preset table.' })
+    const bare = await mounted({ config: { presets: { plain: { sandbox: 'workspace-write', approval: 'ask' } } } })
+    expect(bare.permission.optionOf('plain')).toEqual({ value: 'plain', name: 'plain' })
+    expect(() => ctx.permission.optionOf('plan')).toThrow(/unknown preset/)
+  })
+
+  it('rejects a table entry named custom (reserved for the derived state)', async () => {
+    await expect(mounted({ config: { presets: { custom: { sandbox: 'read-only', approval: 'ask' } } } }))
+      .rejects.toThrow(/reserved for the derived not-a-preset state/)
+  })
+
+  it('reads a schema-less approval stand-in as the ask default', async () => {
+    const ctx = await mounted({ approvalDefault: undefined })
+    const session = freshSession('sess-standin')
+    ctx.permission.set(session, 'request')
+    expect(session.events).toHaveLength(0)
+    expect(ctx.permission.current(session.events)).toBe('request')
+  })
+})

packages/ui/permission/tsconfig.json

@@ -0,0 +1,33 @@
+{
+  "extends": "../../../tsconfig.base.json",
+  "compilerOptions": {
+    "rootDir": "src",
+    "outDir": "lib/types"
+  },
+  "include": [
+    "src"
+  ],
+  "references": [
+    {
+      "path": "../../../vendor/cosmokit"
+    },
+    {
+      "path": "../../../vendor/cordis"
+    },
+    {
+      "path": "../../../vendor/schemastery"
+    },
+    {
+      "path": "../../core/session"
+    },
+    {
+      "path": "../../sandbox/sandbox"
+    },
+    {
+      "path": "../../bash/bash"
+    },
+    {
+      "path": "../user-approval"
+    }
+  ]
+}

pnpm-lock.yaml

@@ -1161,6 +1161,9 @@ importers:
       '@deepseek-ai/dsh-llm':
         specifier: workspace:^
         version: link:../../llm/llm
+      '@deepseek-ai/dsh-permission':
+        specifier: workspace:^
+        version: link:../permission
       '@deepseek-ai/dsh-sandbox':
         specifier: workspace:^
         version: link:../../sandbox/sandbox
@@ -1252,6 +1255,28 @@ importers:
         specifier: ^4.0.0-rc.6
         version: 4.0.0-rc.6(@cordisjs/plugin-include@vendor+include)(@cordisjs/plugin-loader@vendor+loader)
 
+  packages/ui/permission:
+    dependencies:
+      schemastery:
+        specifier: ^3.18.0
+        version: 3.18.0
+    devDependencies:
+      '@deepseek-ai/dsh-bash':
+        specifier: workspace:^
+        version: link:../../bash/bash
+      '@deepseek-ai/dsh-sandbox':
+        specifier: workspace:^
+        version: link:../../sandbox/sandbox
+      '@deepseek-ai/dsh-session':
+        specifier: workspace:^
+        version: link:../../core/session
+      '@deepseek-ai/dsh-user-approval':
+        specifier: workspace:^
+        version: link:../user-approval
+      cordis:
+        specifier: ^4.0.0-rc.6
+        version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4)
+
   packages/ui/stdio-agent:
     devDependencies:
       '@cordisjs/plugin-include':

scripts/gen-doc-graphs.ts

@@ -188,6 +188,15 @@ const SERVICE_ROLES: ServiceRole[] = [
     consumers: ['tools', 'tool-bash'],
     note: 'One-shot permission decisions dispatched over the `approval/request` waterfall; answerers are listeners (the ACP bridge for its own agents), absence fails closed to `unavailable`.',
   },
+  {
+    key: 'permission',
+    pkg: 'permission',
+    title: 'Permission presets',
+    mode: 'core',
+    implementations: [],
+    consumers: ['acp'],
+    note: 'User-facing preset table (request/yolo) bundling the sandbox-mode and approval-policy knobs; a switch writes one `permission/preset` event through to both knob events.',
+  },
   {
     key: 'codeRuntime',
     pkg: 'code-runtime',

tsconfig.build.json

@@ -22,6 +22,7 @@
     { "path": "./packages/core/agent" },
     { "path": "./packages/ui/user-interaction" },
     { "path": "./packages/ui/user-approval" },
+    { "path": "./packages/ui/permission" },
     { "path": "./packages/core/tools" },
     { "path": "./packages/skill/skill" },
     { "path": "./packages/skill/skill-local" },

tsconfig.json

@@ -33,6 +33,7 @@
     { "path": "./packages/core/agent" },
     { "path": "./packages/ui/user-interaction" },
     { "path": "./packages/ui/user-approval" },
+    { "path": "./packages/ui/permission" },
     { "path": "./packages/core/tools" },
     { "path": "./packages/skill/skill" },
     { "path": "./packages/skill/skill-local" },