mchen-oai 794c240f25 Add model and reasoning effort to MCP turn metadata (#21219) ...

## Why
- Similar change as https://github.com/openai/codex/pull/19473.
- Without change: MCP tool calls receive
`_meta["x-codex-turn-metadata"]` with `session_id`, `turn_id`, and
`turn_started_at_unix_ms`.
- Issue: MCP servers may want the model and reasoning effort to better
understand tool-call behavior and latency relative to turn start.

## What Changed
- With change: MCP turn metadata now includes `model` and
`reasoning_effort`, propagated in `_meta["x-codex-turn-metadata"]`.
- Normal `/responses` turn metadata headers are unchanged.

## Verification
- `codex-rs/core/src/mcp_tool_call_tests.rs`
- `codex-rs/core/src/turn_metadata_tests.rs`
- `codex-rs/core/tests/suite/search_tool.rs`

2026-05-05 17:37:48 -07:00

..

snapshots

Update image outputs to default to high detail (#18386)

2026-04-18 11:01:12 -07:00

abort_tasks.rs

Add turn-scoped environment selections (#18416)

2026-04-21 17:48:33 -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

permissions: store only constrained permission profiles (#19735)

2026-04-26 20:59:58 -07:00

agents_md.rs

Run exec-server fs operations through sandbox helper (#17294)

2026-04-12 18:36:03 -07:00

apply_patch_cli.rs

Stateful streaming apply_patch parser

2026-04-30 21:41:15 +00:00

approvals.rs

fix(exec_policy) heredoc parsing file_redirect (#20113)

2026-05-01 01:05:02 +00:00

cli_stream.rs

Remove OPENAI_BASE_URL config fallback (#16720)

2026-04-03 15:03:21 -07:00

client_websockets.rs

[codex-analytics] include user agent in default headers (#17689)

2026-04-27 21:32:10 -07:00

client.rs

Inject state DB, agent graph store (#20689)

2026-05-05 21:45:29 +00:00

code_mode.rs

Prune unused code-mode globals (#20542)

2026-05-01 15:11:22 -07:00

codex_delegate.rs

[codex] Remove unused event messages (#20511)

2026-04-30 20:03:26 -07:00

collaboration_instructions.rs

permissions: store only constrained permission profiles (#19735)

2026-04-26 20:59:58 -07:00

compact_remote.rs

feat: add remote compaction v2 Responses client path (#20773)

2026-05-04 14:15:01 +02:00

compact_resume_fork.rs

Make thread store process-scoped (#19474)

2026-04-30 21:24:59 -07:00

compact.rs

[codex] Remove unused event messages (#20511)

2026-04-30 20:03:26 -07:00

deprecation_notice.rs

revert legacy notify deprecation (#21152)

2026-05-05 10:34:44 -07:00

exec_policy.rs

execpolicy: unwrap PowerShell -Command wrappers on Windows (#20336)

2026-05-01 00:56:20 +00:00

exec.rs

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

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

fork_thread.rs

Make thread store process-scoped (#19474)

2026-04-30 21:24:59 -07:00

hierarchical_agents.rs

Run exec-server fs operations through sandbox helper (#17294)

2026-04-12 18:36:03 -07:00

hooks_mcp.rs

hook trust metadata and enforcement (#20321)

2026-05-05 19:13:55 +00:00

hooks.rs

hook trust metadata and enforcement (#20321)

2026-05-05 19:13:55 +00:00

image_rollout.rs

core tests: build user turns from permission profiles (#20011)

2026-04-28 17:03:20 -07:00

items.rs

[codex-analytics] add item lifecycle timing (#20514)

2026-05-04 22:33:20 +00:00

json_result.rs

core tests: build user turns from permission profiles (#20011)

2026-04-28 17:03:20 -07:00

live_cli.rs

…

live_reload.rs

core tests: build user turns from permission profiles (#20011)

2026-04-28 17:03:20 -07:00

mod.rs

core: fix apply_patch request permissions test (#21060)

2026-05-04 12:48:59 -07:00

model_overrides.rs

app-server: accept permission profile overrides (#18279)

2026-04-22 13:34:33 -07:00

model_switching.rs

1- Add model service tiers metadata (#20969)

2026-05-05 09:51:18 +03:00

model_visible_layout.rs

core tests: configure profiles directly (#20015)

2026-04-28 17:06:59 -07:00

models_cache_ttl.rs

1- Add model service tiers metadata (#20969)

2026-05-05 09:51:18 +03:00

models_etag_responses.rs

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

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

openai_file_mcp.rs

hook trust metadata and enforcement (#20321)

2026-05-05 19:13:55 +00:00

otel.rs

Add reasoning effort to turn tracing spans (#20060)

2026-05-04 12:57:05 -07:00

override_updates.rs

app-server: accept permission profile overrides (#18279)

2026-04-22 13:34:33 -07:00

pending_input.rs

core tests: build user turns from permission profiles (#20011)

2026-04-28 17:03:20 -07:00

permissions_messages.rs

Make thread store process-scoped (#19474)

2026-04-30 21:24:59 -07:00

personality_migration.rs

Inject state DB, agent graph store (#20689)

2026-05-05 21:45:29 +00:00

personality.rs

1- Add model service tiers metadata (#20969)

2026-05-05 09:51:18 +03:00

plugins.rs

Stabilize plugin MCP fixture tests (#19452)

2026-04-28 01:14:44 +00:00

prompt_caching.rs

Surface multi-environment choices in environment context (#20646)

2026-05-01 22:11:06 +00:00

prompt_debug_tests.rs

Inject state DB, agent graph store (#20689)

2026-05-05 21:45:29 +00:00

quota_exceeded.rs

Add turn-scoped environment selections (#18416)

2026-04-21 17:48:33 -07:00

realtime_conversation.rs

Make realtime sideband startup async (#20715)

2026-05-04 22:28:14 +00:00

remote_env.rs

Route process tools to selected environments (#20647)

2026-05-05 12:12:03 -07:00

remote_models.rs

1- Add model service tiers metadata (#20969)

2026-05-05 09:51:18 +03:00

request_compression.rs

Add turn-scoped environment selections (#18416)

2026-04-21 17:48:33 -07:00

request_permissions_tool.rs

core: fix apply_patch request permissions test (#21060)

2026-05-04 12:48:59 -07:00

request_permissions.rs

permissions: store only constrained permission profiles (#19735)

2026-04-26 20:59:58 -07:00

request_plugin_install.rs

[tool_suggest] More prompt polishes. (#20566)

2026-05-02 04:22:12 +00:00

request_user_input.rs

core tests: build user turns from permission profiles (#20011)

2026-04-28 17:03:20 -07:00

responses_api_proxy_headers.rs

core tests: send model turns with permission profiles (#20016)

2026-04-28 17:08:04 -07:00

resume_warning.rs

Inject state DB, agent graph store (#20689)

2026-05-05 21:45:29 +00:00

resume.rs

app-server: accept permission profile overrides (#18279)

2026-04-22 13:34:33 -07:00

review.rs

[codex] Remove unused event messages (#20511)

2026-04-30 20:03:26 -07:00

rmcp_client.rs

1- Add model service tiers metadata (#20969)

2026-05-05 09:51:18 +03:00

rollout_list_find.rs

state: pass state db handles through consumers (#20561)

2026-05-04 11:46:03 -07:00

safety_check_downgrade.rs

core tests: migrate safety check turns to profiles (#20024)

2026-04-28 17:10:42 -07:00

search_tool.rs

Add model and reasoning effort to MCP turn metadata (#21219)

2026-05-05 17:37:48 -07:00

shell_command.rs

Update models.json (#18586)

2026-04-20 10:27:01 -07:00

shell_serialization.rs

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

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

shell_snapshot.rs

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

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

skill_approval.rs

core tests: migrate zsh-fork permissions to profiles (#20034)

2026-04-28 17:15:58 -07:00

skills.rs

Inject state DB, agent graph store (#20689)

2026-05-05 21:45:29 +00:00

spawn_agent_description.rs

1- Add model service tiers metadata (#20969)

2026-05-05 09:51:18 +03:00

sqlite_state.rs

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

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

stream_error_allows_next_turn.rs

Add turn-scoped environment selections (#18416)

2026-04-21 17:48:33 -07:00

stream_no_completed.rs

Add turn-scoped environment selections (#18416)

2026-04-21 17:48:33 -07:00

subagent_notifications.rs

feat: drop spawned-agent context instructions (#19127)

2026-04-23 18:54:45 +02:00

tool_harness.rs

Move apply-patch file changes into turn items (#20540)

2026-05-01 08:47:18 -07:00

tool_parallelism.rs

core tests: build user turns from permission profiles (#20011)

2026-04-28 17:03:20 -07:00

tools.rs

core tests: migrate tools tests to permission profiles (#20027)

2026-04-28 17:11:43 -07:00

truncation.rs

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

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

turn_state.rs

Stabilize websocket response.failed error delivery (#14017)

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

unified_exec.rs

fix: handle deferred network proxy denials (#19184)

2026-04-29 19:13:57 +00:00

unstable_features_warning.rs

Inject state DB, agent graph store (#20689)

2026-05-05 21:45:29 +00:00

user_notification.rs

Add turn-scoped environment selections (#18416)

2026-04-21 17:48:33 -07:00

user_shell_cmd.rs

core tests: configure profiles directly (#20015)

2026-04-28 17:06:59 -07:00

view_image.rs

1- Add model service tiers metadata (#20969)

2026-05-05 09:51:18 +03:00

web_search.rs

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

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

websocket_fallback.rs

core tests: build user turns from permission profiles (#20011)

2026-04-28 17:03:20 -07:00

window_headers.rs

Make thread store process-scoped (#19474)

2026-04-30 21:24:59 -07:00