Merge remote-tracking branch 'origin/master' into codex/truncated-design

# Conflicts:
#	docs/capability-seams.md
#	docs/config-catalog.md
#	docs/cordis-catalog/services.md
#	docs/core-data-structures/core.md
#	docs/event-producer-consumer.md
#	docs/module-graph.md
#	docs/rfc/INDEX.md
#	docs/tool-catalog.md
#	examples/acp-agent/README.md
#	packages/README.md
#	packages/bash/bash/README.md
#	packages/core/tools/tests/gen-tool-catalog.spec.ts
#	packages/support/acp-snapshot/src/harness.ts
#	pnpm-lock.yaml
#	scripts/gen-doc-graphs.ts
#	scripts/gen-tool-catalog.ts
#	scripts/type-equiv.manifest.json

packages/hooks/hook-protocol/tests/runner.spec.ts

@@ -27,6 +27,7 @@ function recordingBash(run: (spec: BashExecSpec) => Promise<BashRunResult>): {
         ...request.stdin !== undefined ? { stdin: request.stdin } : {},
         ...request.env !== undefined ? { env: request.env } : {},
         owner: request.owner,
+        sandboxMode: request.sandboxMode,
       }
     },
     async run(spec: BashExecSpec): Promise<BashRunResult> {

packages/hooks/hooks-claude/README.md

@@ -37,7 +37,7 @@ The hooks **themselves** run in the agent's session workspace: for the agent-sco
 | `SessionStart` | `agent/session-start` (emit) | additionalContext → `agent.inject()` into the new session (cannot block) |
 | `UserPromptSubmit` | `agent/prompt-submit` (waterfall) | `deny` → `PromptDecision.block`; additionalContext-only → delegate via `next()` then fold context onto the downstream decision (a later listener can still block/rewrite) |
 | `PreToolUse` | `tools/pre-execute` (waterfall) | `deny` → `PreToolDecision.deny`; `ask` → `PreToolDecision.ask` |
-| `PostToolUse` | `tools/post-execute` (waterfall) | `deny` → `block` with feedback; additionalContext-only → delegate via `next()` then fold context onto the downstream decision |
+| `PostToolUse` | `tools/post-execute` (waterfall) | `deny` → `block` with feedback; additionalContext-only → delegate via `next()` then fold context onto the downstream decision (a Code Mode sub-call’s context is dropped by the run_code bridge — see [the pipeline doc](../../../docs/tool-execution-pipeline.md)) |
 | `Stop` | `agent/turn-continuation` (waterfall) | a blocking Stop hook forces `continue`, feeding its reason as next-step steering |
 | `SubagentStart` | `subagent/start` (emit) | additionalContext → `agent.inject()` into the live child |
 | `SubagentStop` | `subagent/end` (emit) | observe-only |

packages/hooks/hooks-codex/README.md

@@ -43,7 +43,7 @@ The hooks themselves run in the agent's session workspace: for the agent-scoped
 | `SessionStart` | `agent/session-start` (emit) | a plain-stdout hook's output → additionalContext → `agent.inject()` |
 | `UserPromptSubmit` | `agent/prompt-submit` (waterfall) | `block` (exit 2) → `PromptDecision.block`; additionalContext-only → delegate via `next()` then fold context onto the downstream decision |
 | `PreToolUse` | `tools/pre-execute` (waterfall) | `block` → `PreToolDecision.deny` (no `allow`/`ask`) |
-| `PostToolUse` | `tools/post-execute` (waterfall) | `block` → `block` with feedback; additionalContext-only → delegate via `next()` then fold context onto the downstream decision |
+| `PostToolUse` | `tools/post-execute` (waterfall) | `block` → `block` with feedback; additionalContext-only → delegate via `next()` then fold context onto the downstream decision (a Code Mode sub-call’s context is dropped by the run_code bridge — see [the pipeline doc](../../../docs/tool-execution-pipeline.md)) |
 | `Stop` | `agent/turn-continuation` (waterfall) | a blocking Stop hook forces `continue` with the reason as next-step steering |
 
 A tool call's payload carries the real `tool_name` (the same value the matcher tests) and Codex's `tool_input: { command }` shape (the `command` arg when present, else `''`). The matcher subject is the tool name (`PreToolUse`/`PostToolUse`) or the session source (`SessionStart`); `UserPromptSubmit`/`Stop` ignore matchers.