fix(subagent): confirm steering request admission

docs/cordis-catalog/events.md

@@ -32,7 +32,7 @@ Effective broad cancellation was requested, before queued/outbox work is cleared
 
 Types: [Agent](../core-data-structures/core.md) · [AgentCancelCause](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
 
-Source: [`packages/core/agent/src/types.ts:343`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:349`](../../packages/core/agent/src/types.ts)
 
 ### `agent/created` — emit
 
@@ -54,7 +54,7 @@ A fully configured agent and live session were published. Setup is composition-o
 
 Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
 
-Source: [`packages/core/agent/src/types.ts:274`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:280`](../../packages/core/agent/src/types.ts)
 
 ### `agent/disposed` — emit
 
@@ -74,7 +74,7 @@ An agent left the registry; AgentLoop emits this after driver quiescence and sco
 
 Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
 
-Source: [`packages/core/agent/src/types.ts:283`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:289`](../../packages/core/agent/src/types.ts)
 
 ### `agent/error` — emit
 
@@ -96,7 +96,7 @@ A step or turn errored. The machine reports a failure here (plus the logger) eve
 
 Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
 
-Source: [`packages/core/agent/src/types.ts:457`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:463`](../../packages/core/agent/src/types.ts)
 
 ### `agent/inbox/dequeue` — emit
 
@@ -117,7 +117,7 @@ The driver claimed one item out of the inbox: a queued item at a turn boundary,
 
 Types: [Agent](../core-data-structures/core.md) · [InboxItem](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
 
-Source: [`packages/core/agent/src/types.ts:321`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:327`](../../packages/core/agent/src/types.ts)
 
 ### `agent/inbox/discard` — emit
 
@@ -140,7 +140,7 @@ Pending inbox items were dropped without delivering them, so every enqueue occur
 
 Types: [Agent](../core-data-structures/core.md) · [InboxItem](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
 
-Source: [`packages/core/agent/src/types.ts:333`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:339`](../../packages/core/agent/src/types.ts)
 
 ### `agent/inbox/enqueue` — emit
 
@@ -161,7 +161,7 @@ An item entered the queued or steering inbox. `placement` is the acceptance-time
 
 Types: [Agent](../core-data-structures/core.md) · [InboxItem](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
 
-Source: [`packages/core/agent/src/types.ts:302`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:308`](../../packages/core/agent/src/types.ts)
 
 ### `agent/inbox/update` — emit
 
@@ -181,7 +181,7 @@ A still-pending queued item changed content. The item id, placement, and positio
 
 Types: [Agent](../core-data-structures/core.md) · [InboxItem](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
 
-Source: [`packages/core/agent/src/types.ts:311`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:317`](../../packages/core/agent/src/types.ts)
 
 ### `agent/prompt-submit` — waterfall
 
@@ -204,7 +204,7 @@ Allow, rewrite, or block one claimed prompt before it becomes a user message or
 
 Types: [Agent](../core-data-structures/core.md) · [PromptDecision](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md) · [UserMessage](../core-data-structures/session.md)
 
-Source: [`packages/core/agent/src/types.ts:370`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:376`](../../packages/core/agent/src/types.ts)
 
 ### `agent/request` — waterfall
 
@@ -228,7 +228,7 @@ Replace the frozen call configuration. `await next()` yields the config the mach
 
 Types: [Agent](../core-data-structures/core.md) · [LlmCallConfig](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
 
-Source: [`packages/core/agent/src/types.ts:396`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:402`](../../packages/core/agent/src/types.ts)
 
 ### `agent/request-error` — waterfall
 
@@ -258,7 +258,7 @@ Handle a model-request failure after its failed step has closed but before the f
 
 Types: [Agent](../core-data-structures/core.md) · [LlmFailure](../core-data-structures/llm-streaming.md) · [RequestError](../core-data-structures/core.md) · [RequestErrorAction](../core-data-structures/core.md) · [ResolvedRetryPolicy](../core-data-structures/llm-streaming.md) · [Scoped](../core-data-structures/scope.md)
 
-Source: [`packages/core/agent/src/types.ts:415`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:421`](../../packages/core/agent/src/types.ts)
 
 ### `agent/session-start` — emit
 
@@ -280,7 +280,7 @@ The session lifecycle began, once before the first turn. Use `agent.inject()` to
 
 Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md) · [SessionStartSource](../core-data-structures/core.md)
 
-Source: [`packages/core/agent/src/types.ts:356`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:362`](../../packages/core/agent/src/types.ts)
 
 ### `agent/settled` — emit
 
@@ -305,7 +305,7 @@ One drain chain reached its terminal turn: that turn's `turn/end` is already com
 
 Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md) · [SettleReason](../core-data-structures/core.md)
 
-Source: [`packages/core/agent/src/types.ts:444`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:450`](../../packages/core/agent/src/types.ts)
 
 ### `agent/status` — emit
 
@@ -325,7 +325,7 @@ Agent status changed (`idle` ⇄ `running`). `send()` does not enter `running` s
 
 Types: [Agent](../core-data-structures/core.md) · [AgentStatus](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
 
-Source: [`packages/core/agent/src/types.ts:292`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:298`](../../packages/core/agent/src/types.ts)
 
 ### `agent/step` — serial
 
@@ -349,7 +349,7 @@ Awaited serial checkpoint before EVERY request of a turn is built (the first as
 
 Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
 
-Source: [`packages/core/agent/src/types.ts:383`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:389`](../../packages/core/agent/src/types.ts)
 
 ### `agent/turn-stopping` — serial
 
@@ -375,7 +375,7 @@ The turn is about to close: the model owes no response (no live tool calls, no f
 
 Types: [Agent](../core-data-structures/core.md) · [Scoped](../core-data-structures/scope.md)
 
-Source: [`packages/core/agent/src/types.ts:430`](../../packages/core/agent/src/types.ts)
+Source: [`packages/core/agent/src/types.ts:436`](../../packages/core/agent/src/types.ts)
 
 ## `agent-loop/*`
 

docs/cordis-catalog/services.md

@@ -1970,7 +1970,7 @@ startContinuable(spec: ContinuableStartSpec): ContinuableStart
  * Deliver one message to a known continuable child: steer its running
  * activation, or cold-resume the durable session into a fresh Task-backed
  * activation. The two routes are reported distinctly so timing-dependent
- * routing is observable. A throw means the message was NOT delivered — in
+ * routing is observable. Rejection means the message was NOT delivered — in
  * particular, losing a race with Task settlement does not fall through to
  * cold resume within the same call; a later retry after Task terminal may
  * start the next activation. The started Task owns descriptor lookup and
@@ -1984,7 +1984,7 @@ startContinuable(spec: ContinuableStartSpec): ContinuableStart
  * @param source - caller-supplied attribution retained across either route.
  * @returns whether the message `steered` the existing Task or `started` a new one.
  */
-sendMessage(parent: Agent, childId: SessionId, message: ContentBlock[], source: MessageSource): SendMessageResult
+async sendMessage( parent: Agent, childId: SessionId, message: ContentBlock[], source: MessageSource, ): Promise<SendMessageResult>
 ```
 
 Types: [Agent](../core-data-structures/core.md) · [ContentBlock](../core-data-structures/core.md) · [ContinuableStart](../core-data-structures/subagent.md) · [ContinuableStartSpec](../core-data-structures/subagent.md) · [MessageSource](../core-data-structures/core.md) · [SendMessageResult](../core-data-structures/subagent.md) · [SessionId](../core-data-structures/core.md)