Abhinav af49d38373 Support compact SessionStart hooks (#21272) ...

# Why

Compaction replaces the live conversation history, so hooks that use
`SessionStart` to re-inject durable model context need a way to run
again after that rewrite.

Related - #19905 adds dedicated compact lifecycle hooks

# What

- add `compact` as a supported `SessionStart` source and matcher value
- change pending `SessionStart` state from a single slot to a small FIFO
queue so `resume` / `startup` / `clear` can be preserved alongside a
later `compact`
- drain all queued `SessionStart` sources before the next model request,
preserving their original order

# Testing

The new integration coverage verifies both the basic `compact` matcher
path and the stacked `resume` -> `compact` case where both hooks
contribute `additionalContext` to the next model turn.

2026-05-20 20:46:19 +00:00

..

snapshots

[codex] Remove unused legacy shell tools (#22246)

2026-05-13 16:43:25 +00:00

abort_tasks.rs

[1 of 7] Add thread settings to UserInput (#23080)

2026-05-18 18:48:35 -07:00

agent_jobs.rs

chore: clean up argument-comment lint and roll out all-target CI on macOS (#16054)

2026-03-27 19:00:44 -07:00

agent_websocket.rs

2- Use string service tiers in session protocol (#20971)

2026-05-06 18:00:21 +03:00

agents_md.rs

Fix remote environment test fixtures (#22572)

2026-05-14 12:40:01 -07:00

apply_patch_cli.rs

Make deny canonical for filesystem permission entries (#23493)

2026-05-19 11:03:47 -07:00

approvals.rs

chore: namespace v1 sub-agent tools (#23475)

2026-05-19 19:46:17 +02:00

cli_stream.rs

Remove CODEX_RS_SSE_FIXTURE test hook (#22413)

2026-05-13 03:08:01 +00:00

client_websockets.rs

[1 of 7] Add thread settings to UserInput (#23080)

2026-05-18 18:48:35 -07:00

client.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

code_mode.rs

[codex] Preserve raw code-mode exec output by default (#23564)

2026-05-20 04:02:14 +00:00

codex_delegate.rs

chore(features) rm Feature::ApplyPatchFreeform (#22711)

2026-05-14 16:15:56 -07:00

collaboration_instructions.rs

Defer v1 multi-agent tools behind tool search (#23144)

2026-05-19 15:04:35 +02:00

compact_remote_parity.rs

[1 of 7] Add thread settings to UserInput (#23080)

2026-05-18 18:48:35 -07:00

compact_remote.rs

Defer v1 multi-agent tools behind tool search (#23144)

2026-05-19 15:04:35 +02:00

compact_resume_fork.rs

[5 of 7] Replace OverrideTurnContext with ThreadSettings (#22508)

2026-05-18 21:03:51 -07:00

compact.rs

Add body_after_prefix auto-compact token limit scope (#22870)

2026-05-19 10:19:46 +00:00

deprecation_notice.rs

[codex] Remove experimental instructions file config (#22724)

2026-05-14 18:04:26 -07:00

exec_policy.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

exec.rs

core tests: migrate more turns to permission profiles (#20013)

2026-04-28 17:05:53 -07:00

fork_thread.rs

[1 of 7] Add thread settings to UserInput (#23080)

2026-05-18 18:48:35 -07:00

hierarchical_agents.rs

Fix remote environment test fixtures (#22572)

2026-05-14 12:40:01 -07:00

hooks_mcp.rs

Support explicit MCP OAuth client IDs (#22575)

2026-05-14 11:52:43 -07:00

hooks.rs

Support compact SessionStart hooks (#21272)

2026-05-20 20:46:19 +00:00

image_rollout.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

items.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

json_result.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

live_cli.rs

tests: isolate codex home for live cli (#22563)

2026-05-14 12:59:56 -07:00

mcp_turn_metadata.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

mod.rs

Run compact hooks for remote compaction v2 (#22828)

2026-05-15 15:26:21 +02:00

model_overrides.rs

[5 of 7] Replace OverrideTurnContext with ThreadSettings (#22508)

2026-05-18 21:03:51 -07:00

model_switching.rs

[5 of 7] Replace OverrideTurnContext with ThreadSettings (#22508)

2026-05-18 21:03:51 -07:00

model_visible_layout.rs

[5 of 7] Replace OverrideTurnContext with ThreadSettings (#22508)

2026-05-18 21:03:51 -07:00

models_cache_ttl.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

models_etag_responses.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

openai_file_mcp.rs

Add user_input_requested_during_turn to MCP turn metadata (#22237)

2026-05-15 01:26:50 +00:00

otel.rs

[1 of 7] Add thread settings to UserInput (#23080)

2026-05-18 18:48:35 -07:00

override_updates.rs

[5 of 7] Replace OverrideTurnContext with ThreadSettings (#22508)

2026-05-18 21:03:51 -07:00

pending_input.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

permissions_messages.rs

[5 of 7] Replace OverrideTurnContext with ThreadSettings (#22508)

2026-05-18 21:03:51 -07:00

personality_migration.rs

Preserve image detail in app-server inputs (#20693)

2026-05-15 15:04:04 -07:00

personality.rs

[5 of 7] Replace OverrideTurnContext with ThreadSettings (#22508)

2026-05-18 21:03:51 -07:00

plugins.rs

[1 of 7] Add thread settings to UserInput (#23080)

2026-05-18 18:48:35 -07:00

prompt_caching.rs

Defer v1 multi-agent tools behind tool search (#23144)

2026-05-19 15:04:35 +02:00

prompt_debug_tests.rs

Revert state DB injection and agent graph store (#21481)

2026-05-06 22:48:29 -07:00

quota_exceeded.rs

[1 of 7] Add thread settings to UserInput (#23080)

2026-05-18 18:48:35 -07:00

realtime_conversation.rs

[1 of 7] Add thread settings to UserInput (#23080)

2026-05-18 18:48:35 -07:00

remote_env.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

remote_models.rs

[5 of 7] Replace OverrideTurnContext with ThreadSettings (#22508)

2026-05-18 21:03:51 -07:00

request_compression.rs

[1 of 7] Add thread settings to UserInput (#23080)

2026-05-18 18:48:35 -07:00

request_permissions_tool.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

request_permissions.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

request_plugin_install.rs

Split plugin install discovery into list and request tools (#23372)

2026-05-19 14:45:37 -07:00

request_user_input.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

responses_api_proxy_headers.rs

chore: namespace v1 sub-agent tools (#23475)

2026-05-19 19:46:17 +02:00

resume_warning.rs

[codex] Trim unused TurnContextItem fields (#22709)

2026-05-18 21:54:36 +00:00

resume.rs

[5 of 7] Replace OverrideTurnContext with ThreadSettings (#22508)

2026-05-18 21:03:51 -07:00

review.rs

[5 of 7] Replace OverrideTurnContext with ThreadSettings (#22508)

2026-05-18 21:03:51 -07:00

rmcp_client.rs

Migrate exec-server remote registration to environments (#23633)

2026-05-20 00:25:04 -07:00

rollout_list_find.rs

Unify thread metadata updates above store (#22236)

2026-05-13 00:28:15 +00:00

safety_check_downgrade.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

search_tool.rs

chore: namespace v1 sub-agent tools (#23475)

2026-05-19 19:46:17 +02:00

shell_command.rs

chore(features) rm Feature::ApplyPatchFreeform (#22711)

2026-05-14 16:15:56 -07:00

shell_serialization.rs

[codex] Remove legacy shell output formatting paths (#22706)

2026-05-18 09:57:54 -07:00

shell_snapshot.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

skill_approval.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

skills.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

spawn_agent_description.rs

chore: namespace v1 sub-agent tools (#23475)

2026-05-19 19:46:17 +02:00

sqlite_state.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

stream_error_allows_next_turn.rs

[1 of 7] Add thread settings to UserInput (#23080)

2026-05-18 18:48:35 -07:00

stream_no_completed.rs

[1 of 7] Add thread settings to UserInput (#23080)

2026-05-18 18:48:35 -07:00

subagent_notifications.rs

Add SubagentStart hook (#22782)

2026-05-19 12:45:08 -07:00

tool_harness.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

tool_parallelism.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

tools.rs

Make deny canonical for filesystem permission entries (#23493)

2026-05-19 11:03:47 -07:00

truncation.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

turn_state.rs

Stabilize websocket response.failed error delivery (#14017)

2026-03-11 12:33:09 -07:00

unified_exec.rs

Fix stale background terminal poll events (#23231)

2026-05-19 20:48:37 -07:00

unstable_features_warning.rs

Revert state DB injection and agent graph store (#21481)

2026-05-06 22:48:29 -07:00

user_notification.rs

[1 of 7] Add thread settings to UserInput (#23080)

2026-05-18 18:48:35 -07:00

user_shell_cmd.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

view_image.rs

Make deny canonical for filesystem permission entries (#23493)

2026-05-19 11:03:47 -07:00

web_search.rs

core tests: submit turns with permission profiles (#20010)

2026-04-28 23:01:40 +00:00

websocket_fallback.rs

[3 of 7] Remove UserTurn (#23075)

2026-05-18 19:56:00 -07:00

window_headers.rs

[1 of 7] Add thread settings to UserInput (#23080)

2026-05-18 18:48:35 -07:00

windows_sandbox.rs

Make deny canonical for filesystem permission entries (#23493)

2026-05-19 11:03:47 -07:00