peilin-openai c19525e55e Record initialization analytics for resumed subagents (#51206) ...

## Why

Reloaded subagent threads did not emit initialization analytics, and subagent initialization events always reported `new`.

## What changed

Emit initialization events for resumed spawned subagents before notifying thread listeners. Inherit parent client metadata before reserving a residency slot can evict the parent, preserve the thread's original `created_at`, and report `initialization_mode` as `resumed`. Refresh stored analytics metadata when a subagent resumes; newly created subagents continue to report `new`.

## Testing

Extend the cold-resume integration test to verify a single worker initialization event with the expected session, parent, source, resume mode, and original creation timestamp. Update serialization and session tests to check initialization modes.

GitOrigin-RevId: e78b0c4d88b6ddbe993ca7e1fe7717b6f74bf3d9

2026-10-06 00:16:18 +00:00

..

snapshots

Send base instructions as Responses input messages (#51156)

2026-10-05 18:52:51 +00:00

tests

Record base instructions in incremental tool history (#51188)

2026-10-05 22:20:38 +00:00

active_plugin_inventory_tests.rs

Keep plugin and skill snapshots scoped to each step (#50050)

2026-10-01 17:44:52 +00:00

code_mode_warning_tests.rs

chore: warn when Code Mode lacks model metadata (#29490)

2026-06-23 01:15:11 +00:00

code_mode_warning.rs

chore: warn when Code Mode lacks model metadata (#29490)

2026-06-23 01:15:11 +00:00

config_refresh_tests.rs

Preserve thread overrides and cloud policy validity during config reloads (#49269)

2026-09-29 13:58:09 +00:00

config_refresh.rs

Preserve thread overrides and cloud policy validity during config reloads (#49269)

2026-09-29 13:58:09 +00:00

context_window.rs

Add opt-in compaction after final responses (#46541)

2026-09-19 00:52:56 +00:00

daemon_recovery.rs

Allow environment selection updates during an active turn (#47435)

2026-09-23 03:12:33 +00:00

elicitation_holders_tests.rs

Keep step settings and approval environments consistent (#46556)

2026-09-19 01:27:26 +00:00

environment.rs

Preserve pending environments when spawning subagents (#49075)

2026-09-28 20:42:04 +00:00

extension_interruption_tests.rs

Remove initial messages from session configuration events (#50360)

2026-10-02 16:55:41 +00:00

extension_interruption.rs

Add opt-in structured errors for Guardian circuit-breaker interruptions (#48796)

2026-09-27 22:05:19 +00:00

extension_metrics.rs

Use explicit histogram buckets for Guardian context metrics (#44181)

2026-09-09 15:48:39 +00:00

guardian_checkpoint_tests.rs

Preserve independent Guardian history across parent compaction (#48779)

2026-09-27 20:15:23 +00:00

guardian_checkpoint.rs

Persist resume metadata in compaction checkpoints (#47323)

2026-09-22 16:35:30 +00:00

handlers.rs

Preserve queued agent mail across session eviction (#50087)

2026-10-01 20:17:34 +00:00

inject_tests.rs

Track cumulative MCP attribution across requests and thread history (#47081)

2026-09-21 18:19:07 +00:00

inject.rs

Deduplicate retained instructions across Guardian reviews (#48060)

2026-09-25 10:49:50 +00:00

input_queue.rs

Preserve queued agent mail across session eviction (#50087)

2026-10-01 20:17:34 +00:00

mcp_prewarm.rs

Add turn-start cloud plugin discovery to the MCP extension (#46572)

2026-09-19 02:07:58 +00:00

mcp_refresh.rs

Honor attachment-owned permissions for MCP servers (#40728)

2026-08-25 22:50:49 +00:00

mcp_runtime.rs

Include the environment's MXC backend in MCP sandbox metadata (#49781)

2026-10-01 00:47:44 +00:00

mcp_tests.rs

Centralize model-message resolution and rendering in codex-prompts (#46026)

2026-09-16 21:01:13 +00:00

mcp.rs

Use issuing-step context for Guardian MCP elicitation reviews (#51067)

2026-10-05 10:08:59 +00:00

mod.rs

Record initialization analytics for resumed subagents (#51206)

2026-10-06 00:16:18 +00:00

multi_agents.rs

Expose a backend-independent agent control contract (#46547)

2026-09-19 01:03:55 +00:00

notification_tests.rs

Allow environment selection updates during an active turn (#47435)

2026-09-23 03:12:33 +00:00

plugin_selection.rs

Honor thread-level plugin exclusions across runtime capabilities (#44655)

2026-09-10 21:51:34 +00:00

realtime_history.rs

Record realtime conversation history in Core (#41924)

2026-08-31 22:38:23 +00:00

reasoning_effort_tests.rs

Reuse unchanged history snapshots when resuming threads (#49600)

2026-09-30 11:59:13 +00:00

reasoning_effort.rs

Preserve request-level reasoning effort for memory and title workers (#46531)

2026-09-19 00:19:20 +00:00

retained_context_tests.rs

Retain confirmed Code Mode messages for Guardian reviews (#48725)

2026-09-27 15:03:38 +00:00

retained_context.rs

Persist explicit user goal edits in model history (#49598)

2026-09-30 11:58:03 +00:00

review.rs

Preserve review lifecycle ordering on failure (#50804)

2026-10-04 06:35:16 +00:00

rollout_budget.rs

Route session agent operations through AgentControl (#47520)

2026-09-23 09:39:30 +00:00

rollout_reconstruction_tests.rs

Support ordered response items in world-state context updates (#50441)

2026-10-02 22:12:07 +00:00

rollout_reconstruction.rs

Preserve independent Guardian history across parent compaction (#48779)

2026-09-27 20:15:23 +00:00

session.rs

Use issuing-step context for Guardian MCP elicitation reviews (#51067)

2026-10-05 10:08:59 +00:00

startup_prewarm.rs

Add history-aware prewarming for idle threads (#48812)

2026-09-27 23:21:25 +00:00

startup.rs

Add coordinated shutdown for local agent trees (#49814)

2026-10-01 01:57:56 +00:00

step_activation_tests.rs

Capture host-supplied extension data for each turn (#49846)

2026-10-01 03:31:48 +00:00

step_activation.rs

Allow environment selection updates during an active turn (#47435)

2026-09-23 03:12:33 +00:00

step_context.rs

Send incremental tool catalog updates in Responses Lite (#50540)

2026-10-03 05:59:07 +00:00

step_settings_tests.rs

Centralize model-message resolution and rendering in codex-prompts (#46026)

2026-09-16 21:01:13 +00:00

step_settings.rs

Allow environment selection updates during an active turn (#47435)

2026-09-23 03:12:33 +00:00

submission.rs

Capture host-supplied extension data for each turn (#49846)

2026-10-01 03:31:48 +00:00

tests.rs

Record initialization analytics for resumed subagents (#51206)

2026-10-06 00:16:18 +00:00

thread_settings.rs

Capture host-supplied extension data for each turn (#49846)

2026-10-01 03:31:48 +00:00

time_reminder.rs

Report clock failures again after recovery (#46006)

2026-09-16 18:54:45 +00:00

token_budget.rs

Add Pro Max plan support and update Pro display names (#47971)

2026-09-25 00:20:02 +00:00

turn_context.rs

Keep plugin and skill snapshots scoped to each step (#50050)

2026-10-01 17:44:52 +00:00

turn_input_tests.rs

Preserve human overrides across repeated heartbeat instructions (#47851)

2026-09-24 14:48:41 +00:00

turn_input.rs

Capture host-supplied extension data for each turn (#49846)

2026-10-01 03:31:48 +00:00

turn_start_mcp_tests.rs

Add turn-start cloud plugin discovery to the MCP extension (#46572)

2026-09-19 02:07:58 +00:00

turn_suspension.rs

Route session agent operations through AgentControl (#47520)

2026-09-23 09:39:30 +00:00

turn_tests.rs

Check token estimate filtering directly on the tracing subscriber (#50054)

2026-10-01 18:02:44 +00:00

turn.rs

Record base instructions in incremental tool history (#51188)

2026-10-05 22:20:38 +00:00

world_state_item_tests.rs

Record base instructions in incremental tool history (#51188)

2026-10-05 22:20:38 +00:00

world_state.rs

Record base instructions in incremental tool history (#51188)

2026-10-05 22:20:38 +00:00