Merge remote-tracking branch 'origin/master' into xtr/agent-loop-message-machine

# Conflicts:
#	docs/cordis-catalog/services.md
#	docs/core-data-structures/session.i18n.yaml
#	docs/event-producer-consumer.md
#	examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/session.jsonl

docs/cordis-catalog/events.md

@@ -820,6 +820,35 @@ Emitted when any prompt provider changes. This registry notification is unfilter
 
 Source: [`packages/core/system-prompt/src/index.ts:35`](../../packages/core/system-prompt/src/index.ts)
 
+## `telemetry/*`
+
+### `telemetry/record` — waterfall
+
+Transform one outbound record before it reaches the backend. This waterfall is the seam's redaction extension point. It ships NO rules of its own: the innermost `next()` passes the record through unchanged, and with no listener mounted records reach the backend as captured, so exported data is exactly as clean as the rules a deployment mounts. Listeners stack by transforming `next()`'s return value; returning without `next()` replaces everything beneath. Dispatched synchronously on the capture hot path inside the coordinator's containment: a throwing listener withholds that one record (fail-closed) and never reaches the agent loop. Redaction applies to the exported copy only; the canonical session log is never rewritten.
+
+```ts cordis-catalog
+/**
+ * Transform one outbound record before it reaches the backend. This
+ * waterfall is the seam's redaction extension point. It ships NO rules
+ * of its own: the
+ * innermost `next()` passes the record through unchanged, and with no
+ * listener mounted records reach the backend as captured, so exported
+ * data is exactly as clean as the rules a deployment mounts. Listeners
+ * stack by transforming `next()`'s return value; returning without
+ * `next()` replaces everything beneath. Dispatched synchronously on the
+ * capture hot path inside the coordinator's containment: a throwing
+ * listener withholds that one record (fail-closed) and never reaches the
+ * agent loop. Redaction applies to the exported copy only; the canonical
+ * session log is never rewritten.
+ * @param record - the candidate record, already the coordinator's own deep
+ *   copy; listeners return a (possibly new) record and must not mutate it.
+ * @mode waterfall
+ */
+'telemetry/record'(record: TelemetryRecord, next: () => TelemetryRecord): TelemetryRecord
+```
+
+Source: [`packages/telemetry/session-telemetry/src/index.ts:41`](../../packages/telemetry/session-telemetry/src/index.ts)
+
 ## `tools/*`
 
 ### `tools/change` — emit

docs/cordis-catalog/services.md

@@ -1366,7 +1366,7 @@ fork(source: SessionForkSource, boundary?: number, childSessionId?: SessionId):
 
 Types: [CreateSessionOptions](../core-data-structures/persistence.md) · [OutOfBandSessionEventType](../core-data-structures/session.md) · [Session](../core-data-structures/session.md) · [SessionEvent](../core-data-structures/core.md) · [SessionEventMap](../core-data-structures/session.md) · [SessionId](../core-data-structures/core.md) · [TurnTrigger](../core-data-structures/session.md)
 
-Source: [`packages/core/session/src/index.ts:600`](../../packages/core/session/src/index.ts)
+Source: [`packages/core/session/src/index.ts:614`](../../packages/core/session/src/index.ts)
 
 ## `ctx.sessionTitle` — `SessionTitleService`
 
@@ -1751,6 +1751,29 @@ Types: [Agent](../core-data-structures/core.md) · [TaskDoneListener](../core-da
 
 Source: [`packages/tasks/tasks/src/index.ts:50`](../../packages/tasks/tasks/src/index.ts)
 
+## `ctx.telemetry` — `Telemetry` (abstract seam)
+
+The backend contract in its loadable form: one implementation per context — the cordis `Service` registration under the `telemetry` key throws on a duplicate, cordis' standard behavior. A backend composes a TelemetryCoordinator in its constructor to install the capture side.
+
+```ts cordis-catalog
+/**
+ * See {@link TelemetryBackend.emit} — the seam declaration is the contract's one home.
+ * @param record - the logical record to report; owned by the backend after the call.
+ */
+abstract emit(record: TelemetryRecord): void
+
+/** See {@link TelemetryBackend.flush}. */
+flush?(): void
+
+/**
+ * See {@link TelemetryBackend.shutdown}.
+ * @returns resolves when the backend's pipeline has quiesced.
+ */
+abstract shutdown(): Promise<void>
+```
+
+Source: [`packages/telemetry/session-telemetry/src/index.ts:135`](../../packages/telemetry/session-telemetry/src/index.ts)
+
 ## `ctx.tokenMeter` — `TokenMeterService`
 
 Replay owner for one service-wide estimator and isolated per-session folds.