cleanup(web): remove the steering interjection caption

Steering bubbles render as plain user bubbles; a mid-turn steer is
recognizable by its position in the flow. The runtime SteeringMessageNode
projection and pending-steering lifecycle are unchanged.

Partially supersedes the 2026-08-04 context-source and steer marks note;
the new simplification note owns the removal rationale.

.agents/notes/implemented/feature/2026-08-04-web-context-source-and-steer-marks.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-08-04-web-context-source-and-steer-marks.md
-2026-08-04-web-context-source-and-steer-marks.md: d74badedaa9623014dbba10ae68ca680daf75de1
-2026-08-04-web-context-source-and-steer-marks.zh.md: b2fd990f6f868fdf422ba97ddd25d19705041e3a
+2026-08-04-web-context-source-and-steer-marks.md: 0285f3ef1d7cc9dda77322d6b6e61367ee0f12eb
+2026-08-04-web-context-source-and-steer-marks.zh.md: 872ab30d7235bae55d4350a98654c5d16e34b968

.agents/notes/implemented/feature/2026-08-04-web-context-source-and-steer-marks.md

@@ -37,11 +37,12 @@ The transcript names all three roles a non-prompt message can play — injected
 ## Testing
 
 - `packages/client/runtime` unit coverage pins each source kind, the label fallbacks when a name field is missing, empty, or wrongly typed, the unnamed degradation for a source with no readable kind, and steering reconstruction on reset and live append paths.
-- `packages/client/ui-conversation` jsdom coverage pins the role title, the producer label beside it, the label's survival while expanded, the roleless header, and the steering caption on both durable and pending bubbles.
-- The keyless assembled-Web goldens carry the named header and the steering caption, so the assembled transcript — not only component tests — proves the marks.
+- `packages/client/ui-conversation` jsdom coverage pins the role title, the producer label beside it, the label's survival while expanded, and the roleless header.
+- The keyless assembled-Web goldens carry the named header, so the assembled transcript — not only component tests — proves the marks.
 
 ## Consequences
 
+- **Superseded in part.** The steering-caption clause of the Decision no longer describes master: the [caption removal](../simplification/2026-08-10-web-remove-steering-interjection-caption.md) deleted the `插话` / `Interjection` caption, leaving a mid-turn steer recognizable only by its position in the flow. The context-source and recall naming below stays current, and the `SteeringMessageNode` projection is unchanged.
 - A reader can attribute every non-prompt message in the transcript at a glance, and the header stays honest for logs this client version has never seen a producer for.
 - Producer names in the UI are package-shaped (`dsh-tool-skill`, `@deepseek-ai/dsh-system-prompt`) wherever the source carries only a plugin id. That is the cost of refusing a client-side name table; a producer that wants a better label must record one in its source fields.
 - `ContextMessageNode` gains a required field, so every constructed node — including test fixtures — must supply it.

.agents/notes/implemented/feature/2026-08-04-web-context-source-and-steer-marks.zh.md

@@ -37,11 +37,12 @@ transcript 为非提示消息可能承担的三种角色分别命名：注入上
 ## 测试
 
 - `packages/client/runtime` 单元覆盖钉住每个来源分支、名称字段缺失／为空／类型不符时的回退、来源没有可读 kind 时的无名降级，以及 reset 和实时 append 路径上的 steering 重建。
-- `packages/client/ui-conversation` 的 jsdom 覆盖钉住角色标题、标题旁的生产者名称、展开后该名称的留存、无名时的标题形态，以及持久与待处理气泡上的 steering 标注。
-- 无密钥的组装 Web 黄金基线携带带名称的标题栏与 steering 标注，因此证明这些标识的是组装后的 transcript，而不只是组件测试。
+- `packages/client/ui-conversation` 的 jsdom 覆盖钉住角色标题、标题旁的生产者名称、展开后该名称的留存，以及无名时的标题形态。
+- 无密钥的组装 Web 黄金基线携带带名称的标题栏，因此证明这些标识的是组装后的 transcript，而不只是组件测试。
 
 ## 后果
 
+- **部分被取代。** 决策中的 steering 标注条款已不再描述 master：[标注移除决策](../simplification/2026-08-10-web-remove-steering-interjection-caption.md)删除了 `插话` / `Interjection` 标注，轮次中途的 steer 只能靠它在消息流中的位置辨认。下列上下文来源与召回命名仍然有效，`SteeringMessageNode` 投影未变。
 - 读者一眼即可归因 transcript 中每一条非提示消息；即便面对本客户端版本从未见过其生产者的日志，标题栏依然如实。
 - 只要来源仅携带插件 id，UI 中的生产者名称就呈现为包名形态（`dsh-tool-skill`、`@deepseek-ai/dsh-system-prompt`）。这是拒绝客户端名称表的代价；想要更好标签的生产者必须在来源字段中记录该标签。
 - `ContextMessageNode` 增加了一个必填字段，因此每一处构造该节点的代码——包括测试 fixture——都必须提供它。

.agents/notes/implemented/simplification/2026-08-10-web-remove-steering-interjection-caption.i18n.yaml

@@ -0,0 +1,6 @@
+# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
+# side as of the last confirmed-consistent state. Both languages carry equal authority;
+# after editing either side, bring the other along and re-record with:
+#   pnpm run verify-translation-pairing --write .agents/notes/implemented/simplification/2026-08-10-web-remove-steering-interjection-caption.md
+2026-08-10-web-remove-steering-interjection-caption.md: 2c396f54945fb1c3626f2e5fcc849e81893c23f0
+2026-08-10-web-remove-steering-interjection-caption.zh.md: 85d76e977a908393ba5e3a385b804acce3063660

.agents/notes/implemented/simplification/2026-08-10-web-remove-steering-interjection-caption.md

@@ -0,0 +1,36 @@
+# Agent Note: Remove the steering interjection caption
+
+Status: implemented
+
+English | [中文](2026-08-10-web-remove-steering-interjection-caption.zh.md)
+
+## Problem
+
+The [context-source and steer marks decision](../feature/2026-08-04-web-context-source-and-steer-marks.md) captioned every durable and pending steering bubble with `插话` / `Interjection` so the transcript could say which right-aligned bubble interrupted a running turn. The caption repeats what the flow already shows: a steering bubble sits mid-turn, between the assistant content it interrupted, while a turn-opening prompt sits at a turn boundary. A permanent line of tertiary text above every steer bubble buys no reading a position-aware reader does not already have, and it is the only chrome any user-style bubble carries, so it also breaks the otherwise uniform right-aligned rhythm.
+
+## Decision
+
+Steering renders exactly as a user bubble. `UserStyleBubble` has no steering flag, the `message.steering` locale key and the `.steeringMark` style are deleted, and `PendingSteeringBubble` and `UserMessageNodeView` pass only content and actions. A mid-turn steer is recognizable by its position inside the running turn's flow, and by nothing else.
+
+The runtime distinction is untouched. `SteeringMessageNode` projection from durable `agent/inbox/spliced` history, the `data-pending-steering` attribute, and the pending-to-durable hand-off all remain: the pending lifecycle needs the node identity regardless of presentation, and tests still locate pending bubbles through the attribute.
+
+This partially supersedes the steering clause of the [context-source and steer marks decision](../feature/2026-08-04-web-context-source-and-steer-marks.md); its context-source and recall naming stays current. The caption has flipped before: the [archived no-steer decision](../../archived/simplification/2026-07-31-web-ui-no-steer-entry-or-interjection-chrome.md) removed it while the composer could not steer, and the 2026-08-04 decision reintroduced it after the composer gained a Steer gesture. This removal does not revisit the gesture — steering entry, the Queue dock's steer-send action, and the pending lifecycle keep their owners — it judges only that the transcript need not name the result.
+
+## Alternatives considered
+
+**Keep the caption.** It is the status quo and cheap to keep, but it decorates every steer bubble forever to encode a fact the bubble's position already states. Chrome that carries no information a reader lacks is removed, not maintained.
+
+**Remove the `SteeringMessageNode` distinction too.** The node kind is derived from durable inbox history and drives the pending-to-durable hand-off; it is a replay fact, not presentation. Folding it into `UserMessageNode` would change projection behavior for no UI gain.
+
+**Distinguish steering with quieter chrome (tint, indent, hover-only label).** Any replacement re-raises the same question with a weaker vocabulary. The distinction the transcript needs is positional and already visible; adding subtler decoration keeps the cost and loses the one virtue the text caption had, being explicit.
+
+## Testing
+
+- `packages/client/ui-conversation` jsdom coverage pins the plain bubble: the pending hand-off test locates pending bubbles by `data-pending-steering` and asserts the single-bubble hand-off without any caption, and the MessageItem steering arm asserts copy-without-branch on an uncaptioned bubble.
+- The keyless assembled-Web goldens (`steering/mid-steer`, `steering/settled`, `plan-review/approved`) replay the unchanged session fixtures with no caption text.
+
+## Consequences
+
+- A replayed transcript no longer names steering: a reader infers a mid-turn interjection from its position inside the turn. That inference is weaker than an explicit label for a reader skimming turn boundaries; the decision accepts this.
+- A pending steer bubble is visually identical to an ordinary sent bubble until admission; only its missing clock time differs.
+- Reintroducing steering chrome of any form requires a new product decision superseding this note.

.agents/notes/implemented/simplification/2026-08-10-web-remove-steering-interjection-caption.zh.md

@@ -0,0 +1,36 @@
+# Agent Note: Remove the steering interjection caption
+
+Status: implemented
+
+[English](2026-08-10-web-remove-steering-interjection-caption.md) | 中文
+
+## Problem
+
+[上下文来源与 steer 标识决策](../feature/2026-08-04-web-context-source-and-steer-marks.md)给每个持久与待处理的 steering 气泡加上了 `插话` / `Interjection` 标注，让 transcript 能说明哪条右对齐气泡打断了正在运行的轮次。这个标注重复了消息流已经呈现的事实：steering 气泡位于轮次中途、夹在被它打断的助手内容之间，而开轮提示位于轮次边界。在每个 steer 气泡上方常驻一行三级文字，并没有让一个能看到位置的读者多读出任何信息，而且它是所有用户样式气泡中唯一带装饰的，还破坏了原本统一的右对齐节奏。
+
+## Decision
+
+steering 完全按用户气泡渲染。`UserStyleBubble` 不再有 steering 标志，`message.steering` locale 键与 `.steeringMark` 样式已删除，`PendingSteeringBubble` 与 `UserMessageNodeView` 只传内容与操作。轮次中途的 steer 只能靠它在运行轮次消息流中的位置辨认，除此之外没有任何标识。
+
+运行时的区分保持不变。从持久 `agent/inbox/spliced` 历史投影 `SteeringMessageNode`、`data-pending-steering` 属性、待处理到持久的交接全部保留：待处理生命周期无论呈现如何都需要节点身份，测试也仍通过该属性定位待处理气泡。
+
+本决策部分取代[上下文来源与 steer 标识决策](../feature/2026-08-04-web-context-source-and-steer-marks.md)中的 steering 条款；其上下文来源与召回命名仍然有效。这个标注此前已经翻转过一次：[已归档的取消 steer 装饰决策](../../archived/simplification/2026-07-31-web-ui-no-steer-entry-or-interjection-chrome.md)在 composer 无法 steer 时移除了它，2026-08-04 的决策在 composer 获得 Steer 手势后把它加了回来。本次移除不重议手势本身——steering 入口、Queue dock 的插话发送操作、待处理生命周期各归其主——只判定 transcript 不需要为其结果命名。
+
+## Alternatives considered
+
+**保留标注。** 它是现状，维持成本低，但它永久装饰每个 steer 气泡，只为编码气泡位置已经陈述的事实。不承载读者缺少的信息的装饰应当删除，而不是维护。
+
+**连 `SteeringMessageNode` 区分一起删。** 节点类型派生自持久 inbox 历史，驱动待处理到持久的交接；它是回放事实，不是呈现。把它并入 `UserMessageNode` 会改变投影行为，却没有任何 UI 收益。
+
+**换更安静的装饰（底色、缩进、悬停标签）。** 任何替代装饰都会用更弱的表达重新提出同一个问题。transcript 需要的区分是位置性的、已经可见的；换成更含蓄的装饰保留了成本，却丢掉了文字标注唯一的优点，就是明确。
+
+## Testing
+
+- `packages/client/ui-conversation` 的 jsdom 覆盖固定了纯气泡行为：待处理交接测试通过 `data-pending-steering` 定位待处理气泡，在没有任何标注的前提下断言单气泡交接；MessageItem 的 steering 分支在无标注气泡上断言可复制且无分支操作。
+- 无密钥的组装 Web goldens（`steering/mid-steer`、`steering/settled`、`plan-review/approved`）用未变的会话 fixture 回放，不含标注文字。
+
+## Consequences
+
+- 回放的 transcript 不再为 steering 命名：读者靠消息在轮次中的位置推断这是一次中途插话。对快速扫读轮次边界的读者，这个推断弱于显式标签；本决策接受这一代价。
+- 待处理的 steer 气泡在被准入前与普通已发送气泡在视觉上完全一致，仅缺少时钟时间。
+- 重新引入任何形式的 steering 装饰都需要一个取代本 note 的新产品决策。

apps/web/tests/snapshots/plan-review/approved.expected.md

@@ -5,7 +5,7 @@
     - tab "Chat" [selected]
     - tab "Trajectory"
 - img
-- text: "plan Plan mode on. Use /plan off to leave. Interjection Plan a small change: add a --greeting flag to a CLI. Do not read or write any files. Call exit_plan_mode with a short plan of at most five bullet points. Once the plan is approved, reply with the single word DONE and stop. {{clock}}"
+- text: "plan Plan mode on. Use /plan off to leave. Plan a small change: add a --greeting flag to a CLI. Do not read or write any files. Call exit_plan_mode with a short plan of at most five bullet points. Once the plan is approved, reply with the single word DONE and stop. {{clock}}"
 - button "Copy":
   - img
 - button "Context injection @deepseek-ai/dsh-system-prompt":

apps/web/tests/snapshots/steering/mid-steer.expected.md

@@ -21,7 +21,7 @@
   - img
   - text: Ask question waiting
 - status: Deep diving...
-- text: "Interjection Interjection: include the word BANANA in your final reply."
+- text: "Interjection: include the word BANANA in your final reply."
 - button "Copy":
   - img
 - region "Ready to continue?":

apps/web/tests/snapshots/steering/settled.expected.md

@@ -19,7 +19,7 @@
   - img
   - img
   - text: Ask question 1/1 answered
-- text: "Interjection Interjection: include the word BANANA in your final reply. {{clock}}"
+- text: "Interjection: include the word BANANA in your final reply. {{clock}}"
 - button "Copy":
   - img
 - button "Think The user selected \"Yes\" and wants me to include the word \"BANANA\" in my final reply. Let me acknowledge their answer.":

packages/client/ui-conversation/README.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/client/ui-conversation/README.md
-README.md: b57f88b5a030a6c20c957e26ea32fb125f106ab4
-README.zh.md: a8a8c4814086cad02c5416078f242ec92a7503d7
+README.md: 1def427a0d6c2d27e0adc7fbfa4a1185bc6b0b57
+README.zh.md: d603e8a337f934f8da9f136f0d42814bb1108acc

packages/client/ui-conversation/README.md

@@ -18,7 +18,7 @@ Approvals take over the composer through the chain this package declares: `Appro
 
 The session header declares and renders the session-scoped `'conversation.session.header.actions'` list beside the title, allowing feature plugins to contribute controls without entering the skeleton. The composer chain currency includes the current conversation `session`; ui-subagent selects one-shot or parent-unavailable addressed sessions for reason-specific read-only copy, while the ordinary InputBar keeps every addressed child Send-only because the continuation service exposes no public per-Activation cancellation operation and `session.cancel` would bypass its ownership.
 
-Logged non-user messages render as a default-collapsed disclosure whose header names the role the runtime projected for the message — `上下文注入` for an injection, `跨会话召回` for a recalled session — followed by the producer name that projection read out of the durable source, so a reader distinguishes a skill catalog from a workspace instruction file or a recalled session without expanding. A source that names no producer shows the role alone. The shared `DisclosureRow` primitive gives this context surface the same compact geometry as other flow rows while retaining context semantics: the expanded body follows its content height up to a 141px scrolling cap and synthesizes no tool state or summary ([historical disclosure decision](../../../.agents/notes/archived/feature/2026-07-30-web-context-injection-disclosure.md), [producer-label decision](../../../.agents/notes/implemented/feature/2026-08-04-web-context-source-and-steer-marks.md)). That body follows the form the producer declared on its durable source: `instructions` names the reconciled files above their text, `catalog` lists the entries the source recorded instead of the model-facing prose, and every other value — absent, unknown to this version, or carrying no usable fields — renders the opaque body, which shows the model-facing text with its real line breaks and the remaining source fields. The opaque body is the documented default, not a leftover: a resumed, forked, or foreign log must render whether or not its producer is mounted here. A durable or pending steering bubble carries an `插话` / `Interjection` caption above it, the only thing distinguishing a mid-turn interjection from the turn-opening prompt that shares its bubble.
+Logged non-user messages render as a default-collapsed disclosure whose header names the role the runtime projected for the message — `上下文注入` for an injection, `跨会话召回` for a recalled session — followed by the producer name that projection read out of the durable source, so a reader distinguishes a skill catalog from a workspace instruction file or a recalled session without expanding. A source that names no producer shows the role alone. The shared `DisclosureRow` primitive gives this context surface the same compact geometry as other flow rows while retaining context semantics: the expanded body follows its content height up to a 141px scrolling cap and synthesizes no tool state or summary ([historical disclosure decision](../../../.agents/notes/archived/feature/2026-07-30-web-context-injection-disclosure.md), [producer-label decision](../../../.agents/notes/implemented/feature/2026-08-04-web-context-source-and-steer-marks.md)). That body follows the form the producer declared on its durable source: `instructions` names the reconciled files above their text, `catalog` lists the entries the source recorded instead of the model-facing prose, and every other value — absent, unknown to this version, or carrying no usable fields — renders the opaque body, which shows the model-facing text with its real line breaks and the remaining source fields. The opaque body is the documented default, not a leftover: a resumed, forked, or foreign log must render whether or not its producer is mounted here. A durable or pending steering bubble shares the user bubble's presentation unadorned; its mid-turn position in the flow is the only steering signal the transcript shows.
 
 A Think row stays collapsed by default and exposes live reasoning throughput without expanding the chain of thought: while its reasoning block is the streaming tail, the summary switches from the settled first line to the latest non-blank line and its one-line scrollport follows each delta to the inline end. Expanding the row removes the moving summary and leaves the full reasoning in ordinary page flow, so page reading never fights an internal follower; settlement restores the stable first-line summary at the left edge ([decision](../../../.agents/notes/implemented/feature/2026-08-02-web-thinking-tail-scroll.md)).
 

packages/client/ui-conversation/README.zh.md

@@ -16,7 +16,7 @@ Chat 业务行是彼此独立的注册表贡献，不是封闭的内建联合。
 
 会话页头会在标题旁声明并渲染 Session scope 的 `'conversation.session.header.actions'` 列表，使功能插件无需进入骨架即可贡献控件。编辑器链的 currency 包含当前对话 `session`；ui-subagent 会选取 one-shot 或 parent 不可用的已寻址会话，并按原因显示只读文案，而普通 InputBar 会让所有已寻址 child 仅保留 Send，因为继续执行服务不公开逐 Activation 取消操作，`session.cancel` 也会绕过其所有权。
 
-已记录的非用户消息渲染为默认折叠的展开项，标题栏先给出运行时为该消息投影出的角色——注入为 `上下文注入`，召回为 `跨会话召回`——其后是该投影从持久来源读出的生产者名称，因此读者无需展开即可区分 skill（技能）目录、工作区指令文件与被召回的会话。来源未提供生产者名称时只显示角色。共享的 `DisclosureRow` 原子组件让该上下文界面与消息流中的其他紧凑行保持相同几何，同时保留上下文语义：展开内容区的高度会随内容自适应，最大为 141px，超出后滚动，且不会合成工具状态或摘要（[历史展开项决策](../../../.agents/notes/archived/feature/2026-07-30-web-context-injection-disclosure.md)、[生产者标签决策](../../../.agents/notes/implemented/feature/2026-08-04-web-context-source-and-steer-marks.md)）。该内容区按生产方在持久来源上声明的形态渲染：`instructions` 在正文之上列出它对账过的文件，`catalog` 列出来源记录的条目而非面向模型的散文，其余取值——未声明、本版本不认识、或字段不可用——一律渲染 opaque 内容区，即按真实换行展示面向模型的文本，并把剩余来源字段列出。opaque 不是兜底剩余物而是有文档的默认：恢复的、fork 的、外部写入的日志，无论其生产方是否挂载在此处，都必须渲染得出来。持久或待处理的 steering（中途引导）气泡上方带有 `插话` / `Interjection` 标注，这是把中途插话与共用同一气泡的开轮提示区分开的唯一标识。
+已记录的非用户消息渲染为默认折叠的展开项，标题栏先给出运行时为该消息投影出的角色——注入为 `上下文注入`，召回为 `跨会话召回`——其后是该投影从持久来源读出的生产者名称，因此读者无需展开即可区分 skill（技能）目录、工作区指令文件与被召回的会话。来源未提供生产者名称时只显示角色。共享的 `DisclosureRow` 原子组件让该上下文界面与消息流中的其他紧凑行保持相同几何，同时保留上下文语义：展开内容区的高度会随内容自适应，最大为 141px，超出后滚动，且不会合成工具状态或摘要（[历史展开项决策](../../../.agents/notes/archived/feature/2026-07-30-web-context-injection-disclosure.md)、[生产者标签决策](../../../.agents/notes/implemented/feature/2026-08-04-web-context-source-and-steer-marks.md)）。该内容区按生产方在持久来源上声明的形态渲染：`instructions` 在正文之上列出它对账过的文件，`catalog` 列出来源记录的条目而非面向模型的散文，其余取值——未声明、本版本不认识、或字段不可用——一律渲染 opaque 内容区，即按真实换行展示面向模型的文本，并把剩余来源字段列出。opaque 不是兜底剩余物而是有文档的默认：恢复的、fork 的、外部写入的日志，无论其生产方是否挂载在此处，都必须渲染得出来。持久或待处理的 steering（中途引导）气泡沿用用户气泡的呈现，不加任何装饰；transcript 中唯一的 steering 信号是它出现在轮次中途的位置。
 
 Think 行默认保持折叠，并在不展开思维链的情况下暴露实时推理（reasoning）吞吐：当推理块是流式输出尾部时，摘要从结算后的首行切换到最新的非空行，其单行滚动区会随每个 delta 追到行内末端。展开该行会移除移动摘要，让完整推理进入普通页面流，因此页面阅读不会与内部跟随器争夺滚动；结算后恢复左对齐的稳定首行摘要（[决策](../../../.agents/notes/implemented/feature/2026-08-02-web-thinking-tail-scroll.md)）。
 

packages/client/ui-conversation/src/client/chat/MessageItem.module.css

@@ -8,15 +8,6 @@
   gap: 6px;
 }
 
-/* Steering caption above the bubble: mid-turn interjections carry the same
-   bubble as a turn-opening prompt, so the transcript names which one this is. */
-.steeringMark {
-  padding-right: 4px;
-  color: var(--dsw-alias-label-tertiary);
-  font-size: 12px;
-  line-height: 16px;
-}
-
 .bubble {
   /* 525px cap inside the 736 column; percentage keeps narrow windows sane. */
   max-width: min(525px, 82%);

packages/client/ui-conversation/src/client/chat/MessageItem.tsx

@@ -1,7 +1,6 @@
 // MessageItem: simple chat nodes — user and consumed-steering bubbles
-// (right-aligned, with clock + copy IconActions; steering adds the
-// interjection caption that names it; branch lives only under assistant
-// answers), pending steering (caption + copy only), context injection,
+// (right-aligned, with clock + copy IconActions; branch lives only under
+// assistant answers), pending steering (copy only), context injection,
 // compaction marker, retry disclosure, and unknown-surface JSON rows.
 
 import { memo, useEffect, useMemo, useState } from 'react'
@@ -151,22 +150,19 @@ function projectUserText(text: string): ReactNode {
 
 /** Right-aligned bubble shared by user and steering rows. */
 function UserStyleBubble({
-  content, actions, pending = false, steering = false, t,
+  content, actions, pending = false, t,
 }: {
   content: readonly unknown[]
   /** Optional IconActions (or similar) below the bubble; receives the joined text. */
   actions?: (text: string) => ReactNode
   /** Whether this is the Host-authoritative pre-admission steering projection. */
   pending?: boolean
-  /** Marks the bubble as mid-turn steering rather than a turn-opening prompt. */
-  steering?: boolean
   t: ChatViewSlotProps['t']
 }): ReactNode {
   const { text, rest } = contentText(content)
   const truncated = (total: number): string => t('json.truncated', { total })
   return (
     <div className={css.userRow} data-pending-steering={pending || undefined} data-time-hover-root>
-      {steering && <span className={css.steeringMark} data-steering-mark>{t('message.steering')}</span>}
       <div className={css.bubble}>
         {projectUserText(text)}
         {rest.map((block, i) => <JsonBlock key={i} label={t('message.extraBlock')} payload={block} truncatedLabel={truncated} />)}
@@ -190,7 +186,6 @@ export function PendingSteeringBubble({ content, t }: {
     <UserStyleBubble
       content={content}
       pending
-      steering
       t={t}
       actions={text => (
         <MessageIconActions
@@ -212,7 +207,6 @@ export const UserMessageNodeView = memo(function UserMessageNodeView({
   return (
     <UserStyleBubble
       content={data.content}
-      steering={data.kind === 'steering'}
       t={t}
       actions={text => (
         <MessageIconActions

packages/client/ui-conversation/src/client/locales.ts

@@ -79,7 +79,6 @@ export const zh = {
   'message.context.relay.from': '来自会话 {session}',
   'message.context.recall.counts': '保留 {retained} 条 · 省略 {omitted} 条',
   'message.context.recall.truncated': '已截断',
-  'message.steering': '插话',
   'message.compaction': '上下文已压缩',
   'message.compaction.running': '正在压缩…',
   'message.compaction.completed': '已压缩 {items} 条历史记录（约 {tokens} tokens）',
@@ -222,7 +221,6 @@ export const en = {
   'message.context.relay.from': 'From session {session}',
   'message.context.recall.counts': '{retained} kept · {omitted} omitted',
   'message.context.recall.truncated': 'truncated',
-  'message.steering': 'Interjection',
   'message.compaction': 'Context compacted',
   'message.compaction.running': 'Compacting context…',
   'message.compaction.completed': 'Compacted {items} history items (~{tokens} tokens)',

packages/client/ui-conversation/tests/chat-branch-tails.spec.tsx

@@ -229,7 +229,7 @@ describe('MessageItem arms', () => {
     expect(vi.getTimerCount()).toBe(0)
   })
 
-  it('consumed steering is captioned as an interjection and keeps copy without branch', () => {
+  it('consumed steering renders as a plain user bubble and keeps copy without branch', () => {
     const writeText = vi.fn().mockResolvedValue(undefined)
     Object.defineProperty(navigator, 'clipboard', {
       configurable: true,
@@ -242,7 +242,6 @@ describe('MessageItem arms', () => {
       } as never}
       />,
     )
-    expect(view.getByText('插话')).toBeTruthy()
     expect(view.getByText('steer!')).toBeTruthy()
     expect(view.getByText(/附加内容块/)).toBeTruthy()
     fireEvent.click(view.getByRole('button', { name: '复制' }))

packages/client/ui-conversation/tests/chat-view.spec.tsx

@@ -459,9 +459,6 @@ describe('ChatView', () => {
     expect(view.queryByText('later')).toBeNull()
     const pendingBubble = view.getByText('interrupt now').closest('[data-pending-steering]')
     expect(pendingBubble).not.toBeNull()
-    // Pending and durable steering carry the same interjection caption, so the
-    // hand-off does not change what the row says it is.
-    expect(within(pendingBubble as HTMLElement).getByText('插话')).toBeTruthy()
     fireEvent.click(within(pendingBubble as HTMLElement).getByRole('button', { name: '复制' }))
     expect(writeText).toHaveBeenCalledWith('interrupt now')
     expect(within(pendingBubble as HTMLElement).queryByRole('button', { name: '在新对话中分支' })).toBeNull()
@@ -483,7 +480,6 @@ describe('ChatView', () => {
     })
     expect(view.getAllByText('interrupt now')).toHaveLength(1)
     expect(view.container.querySelector('[data-pending-steering]')).toBeNull()
-    expect(view.getAllByText('插话')).toHaveLength(1)
     // Only the durable steering bubble: the turn is still running, so its
     // assistant narration owns no footer yet, and a steering bubble never
     // carries a branch action.