docs: move ACP checklist into packages/acp

Co-locate the ACP feature support checklist with the bridge package
(packages/acp/acp-feature-support.md) and rewrite its relative links for
the new depth. Broaden the doc-sync globs (doc-typecheck, verify-md-wrap,
verify-md-links) from packages/*/README.md to packages/*/*.md so a
package-level doc beyond the README stays under the drift gates, and
update the AGENTS.md prose describing that scope.

packages/AGENTS.md

@@ -13,6 +13,6 @@ Naming notes:
 - A *service* `src/index.ts` exports the service class as `export default` + all public types; a *function/namespace plugin* `src/index.ts` exports `name`/`inject`/`Config`/`apply` as named exports and NO default (see the plugin-export-shape rule above)
 - `src/types.ts` contain only types — no runtime code
 - Tests live at package level under `tests/`, not `src/__tests__/`
-- A package's README and module/JSDoc comments are part of the change: when you alter behavior (config keys, defaults, error codes, wire fields), update them in the same commit. CI runs `pnpm run doc-sync`, which typechecks fenced `ts` blocks in `packages/*/README.md`, verifies the event-taxonomy table, and checks markdown wrapping across this file too — but it does NOT catch prose drift (config keys, defaults, error codes), so those stay on the author.
+- A package's README and module/JSDoc comments are part of the change: when you alter behavior (config keys, defaults, error codes, wire fields), update them in the same commit. CI runs `pnpm run doc-sync`, which typechecks fenced `ts` blocks in `packages/*/*.md`, verifies the event-taxonomy table, and checks markdown wrapping across this file too — but it does NOT catch prose drift (config keys, defaults, error codes), so those stay on the author.
 
 Read the per-package README.md for package-specific details: service API, events, extension points, TODOs.

docs/acp-feature-support.md → packages/acp/acp-feature-support.md

@@ -1,6 +1,6 @@
 # ACP feature support checklist
 
-A structured inventory of [Agent Client Protocol](https://agentclientprotocol.com) (ACP) features and where the harness's ACP bridge ([`@deepseek-ai/dsh-acp`](../packages/acp/README.md)) stands on each. The bridge exposes the harness agent as an ACP **server** (the agent side of an editor↔agent connection), so "supported" below means *the bridge implements the agent's half* — answering an agent method, advertising a capability, or calling a client method.
+A structured inventory of [Agent Client Protocol](https://agentclientprotocol.com) (ACP) features and where the harness's ACP bridge ([`@deepseek-ai/dsh-acp`](README.md)) stands on each. The bridge exposes the harness agent as an ACP **server** (the agent side of an editor↔agent connection), so "supported" below means *the bridge implements the agent's half* — answering an agent method, advertising a capability, or calling a client method.
 
 ## Scope
 
@@ -92,7 +92,7 @@ These are capabilities the bridge would *drive* on the editor. The harness runs
 
 ## 5. Tool-call rendering
 
-Tool-call presentation is **owned by each tool** (`presentCall` / `presentResult` on the `dsh-tools` definition), not special-cased in the bridge — see the [terminal-and-tool-rendering RFC](rfc/implemented/2026-06-18-acp-terminal-and-tool-rendering.md).
+Tool-call presentation is **owned by each tool** (`presentCall` / `presentResult` on the `dsh-tools` definition), not special-cased in the bridge — see the [terminal-and-tool-rendering RFC](../../docs/rfc/implemented/2026-06-18-acp-terminal-and-tool-rendering.md).
 
 | Feature | Stable | Bridge | Claude | Codex | Notes |
 |---|---|---|---|---|---|
@@ -130,7 +130,7 @@ The bridge rejects unsupported prompt blocks rather than silently dropping them
 | Feature | Stable | Bridge | Notes |
 |---|---|---|---|
 | `StopReason` mapping | S | ✅ | `turnEndToStopReason` is total over harness turn-end reasons → `end_turn`/`max_tokens`/`cancelled`. |
-| Multi-session (N per connection) | S | ✅ | Strict per-session demux; concurrent streams never interleave. See the [multi-session RFC](rfc/proposed/2026-06-14-acp-multi-session.md). |
+| Multi-session (N per connection) | S | ✅ | Strict per-session demux; concurrent streams never interleave. See the [multi-session RFC](../../docs/rfc/proposed/2026-06-14-acp-multi-session.md). |
 | Disconnect / disposal teardown | S | ✅ | Quiesces every live session on client disconnect or Cordis disposal. |
 | `_meta` extensibility | S | ⚠️ | Consumed (Zed terminal cap) and emitted (terminal `_meta`); no other custom extensions. |
 | Background-task ownership isolation | — | ✅ | `bash_output`/`bash_kill` reject another session's task via an opaque owner token. |
@@ -159,4 +159,4 @@ Unstable/draft ACP features that **neither** reference adapter ships are not tra
 
 - Stable spec: `schema/v1/schema.json` (schema `1.14.0`) and `docs/protocol/v1/*.mdx` in the [agent-client-protocol](https://github.com/agentclientprotocol/agent-client-protocol) repo.
 - Reference adapters: [`claude-agent-acp`](https://github.com/zed-industries/claude-code-acp) and [`codex-acp`](https://github.com/zed-industries/codex-acp).
-- Bridge: [`packages/acp/README.md`](../packages/acp/README.md), [`packages/acp/src/index.ts`](../packages/acp/src/index.ts), and the ACP RFCs under [`docs/rfc/`](rfc/README.md).
+- Bridge: [`README.md`](README.md), [`src/index.ts`](src/index.ts), and the ACP RFCs under [`docs/rfc/`](../../docs/rfc/README.md).

scripts/doc-typecheck.ts

@@ -97,7 +97,7 @@ function tempTsconfig(): string {
   })
 }
 
-const markdownGlobs = ['README.md', 'docs/**/*.md', 'packages/*/README.md']
+const markdownGlobs = ['README.md', 'docs/**/*.md', 'packages/*/*.md']
 
 const files: string[] = []
 for (const pattern of markdownGlobs) {

scripts/verify-md-links.ts

@@ -48,7 +48,7 @@ const root = resolve(import.meta.dirname, '..')
 const PATTERNS = [
   'README.md',
   'docs/**/*.md',
-  'packages/*/README.md',
+  'packages/*/*.md',
   'AGENTS.md',
   'packages/AGENTS.md',
   '.agents/skills/**/*.md',

scripts/verify-md-wrap.ts

@@ -18,7 +18,7 @@
  * A wrapped paragraph inside a list item or blockquote is still a `paragraph`
  * node, so those are caught too. Scope mirrors doc-typecheck plus the two
  * AGENTS.md files that doc-sync does NOT otherwise cover (the convention itself
- * lives there): README.md, docs/** /*.md, packages/* /README.md, AGENTS.md,
+ * lives there): README.md, docs/** /*.md, packages/* /*.md, AGENTS.md,
  * packages/AGENTS.md. The root and packages/ CLAUDE.md are symlinks to the
  * AGENTS.md files, so they are deduped by real path.
  *
@@ -36,7 +36,7 @@ import type { Nodes } from 'mdast'
 const root = resolve(import.meta.dirname, '..')
 
 /** Files to check: doc-typecheck's scope plus the AGENTS.md pair. */
-const PATTERNS = ['README.md', 'docs/**/*.md', 'packages/*/README.md', 'AGENTS.md', 'packages/AGENTS.md']
+const PATTERNS = ['README.md', 'docs/**/*.md', 'packages/*/*.md', 'AGENTS.md', 'packages/AGENTS.md']
 
 /** A located hard-wrap: a prose paragraph spanning more than one source line. */
 interface Violation {