sayan-oai bdaad6820c Reuse MCP tool snapshot within a sampling request (#31292) ...

Follow-up to #30226.

## Why

#30226 makes Apps World State inspect the MCP tool list, while
tool-router construction reads the same list again later in the sampling
request. `list_all_tools()` walks the MCP clients and may reconnect or
wait for tools, so doing that work twice adds latency and lets context
and tool construction observe different MCP states for one request.

## What

- Add a lazy MCP tool snapshot to `StepContext`.
- Reuse that snapshot for Apps World State and tool-router construction.
- Let each new `StepContext` refresh naturally for the next sampling
request, without manager-level caching or invalidation.

## Testing

- `just test -p codex-core apps_instructions`
- `just test -p codex-core
apps_guidance_appears_after_background_recovery_within_a_turn`

2026-07-08 13:35:31 -07:00

..

agent

Log multi-agent communication lifecycle (#30872)

2026-07-01 18:11:09 -07:00

apps

Make Apps guidance react to MCP availability (#30226)

2026-07-06 14:29:19 -07:00

bin

Refactor config types into a separate crate (#16962)

2026-04-07 00:32:41 +00:00

config

[codex] Enable auth elicitation by default (#28772)

2026-07-07 11:48:27 -07:00

context

Use model catalog approval messages (#31312)

2026-07-07 10:52:38 -07:00

context_manager

Use model catalog approval messages (#31312)

2026-07-07 10:52:38 -07:00

guardian

core: make AGENTS.md react to environment changes (#29810)

2026-06-24 22:57:42 -07:00

mcp_tool_call

Report MCP error codes with server attribution (#29969)

2026-06-24 21:08:39 -07:00

plugins

Make plugin guidance react to environment readiness (#30223)

2026-07-06 07:05:40 -07:00

sandboxing

Prepare managed network sandbox context (#29456)

2026-06-23 20:07:09 +01:00

session

Reuse MCP tool snapshot within a sampling request (#31292)

2026-07-08 13:35:31 -07:00

state

elicitations: Move to shared ElicitationService (#30627)

2026-07-06 11:20:32 -07:00

tasks

feat(core): emit canonical review mode items (#31473)

2026-07-08 09:59:50 -07:00

tools

core: migrate standalone web search to extension-owned turn items (#31525)

2026-07-08 09:40:00 -07:00

unified_exec

feat(core): emit canonical command execution items (#31297)

2026-07-06 21:22:51 -07:00

utils

Extract rollout into its own crate (#15548)

2026-03-24 18:10:53 -07:00

agent_communication.rs

Log multi-agent communication lifecycle (#30872)

2026-07-01 18:11:09 -07:00

agents_md_manager.rs

core: make AGENTS.md react to environment changes (#29810)

2026-06-24 22:57:42 -07:00

agents_md_tests.rs

core: make AGENTS.md react to environment changes (#29810)

2026-06-24 22:57:42 -07:00

agents_md.rs

core: make AGENTS.md react to environment changes (#29810)

2026-06-24 22:57:42 -07:00

apply_patch_tests.rs

path-uri: clarify host-native path conversion (#29501)

2026-06-23 00:02:33 +00:00

apply_patch.rs

apply-patch: carry paths as PathUri (#28854)

2026-06-18 19:31:19 +00:00

attestation.rs

[codex] request desktop attestation from app (#20619)

2026-05-08 12:36:02 -07:00

client_common_tests.rs

[codex] Support sequential cutoff reasoning summaries (#31306)

2026-07-06 23:23:56 -04:00

client_common.rs

[codex] Use input items for Responses Lite tools (#27946)

2026-06-22 23:56:16 -07:00

client_tests.rs

core: route Responses API through system proxy (#31335)

2026-07-07 03:49:53 +00:00

client.rs

[codex] Add externally provided Codex auth (#31274)

2026-07-07 17:43:19 -07:00

codex_delegate_tests.rs

Fix cancelled review leaving MCP startup busy (#31189)

2026-07-06 10:55:35 -04:00

codex_delegate.rs

Fix cancelled review leaving MCP startup busy (#31189)

2026-07-06 10:55:35 -04:00

codex_thread.rs

elicitations: Move to shared ElicitationService (#30627)

2026-07-06 11:20:32 -07:00

command_canonicalization_tests.rs

fix: move inline codex-rs/core unit tests into sibling files (#14444)

2026-03-12 08:16:36 -07:00

command_canonicalization.rs

core: remove cross-crate re-exports from lib.rs (#16512)

2026-04-01 23:06:24 -07:00

compact_model_fallback.rs

fix: retry rejected previous-model compaction with selected model (#30319)

2026-07-07 14:26:03 -07:00

compact_remote_request.rs

chore: extract remote compaction request attempts (#31316)

2026-07-07 12:57:19 -07:00

compact_remote_v2_attempt.rs

chore: extract remote compaction request attempts (#31316)

2026-07-07 12:57:19 -07:00

compact_remote_v2.rs

fix: retry rejected previous-model compaction with selected model (#30319)

2026-07-07 14:26:03 -07:00

compact_remote.rs

fix: retry rejected previous-model compaction with selected model (#30319)

2026-07-07 14:26:03 -07:00

compact_tests.rs

core: make AGENTS.md react to environment changes (#29810)

2026-06-24 22:57:42 -07:00

compact_token_budget.rs

core: make AGENTS.md react to environment changes (#29810)

2026-06-24 22:57:42 -07:00

compact.rs

[codex] rename rollout budget error to session budget error (#29744)

2026-06-23 16:49:13 -07:00

config_lock.rs

Use plugin-service MCP as the hosted plugin runtime (#27198)

2026-06-10 12:54:21 +02:00

connectors_tests.rs

[apps] Thread structured icon assets through app list (#29889)

2026-06-24 13:25:44 -07:00

connectors.rs

Make Apps guidance react to MCP availability (#30226)

2026-07-06 14:29:19 -07:00

consequential_tool_message_templates.json

[elicitation] User-friendly tool call messages. (#14403)

2026-03-12 00:35:21 -07:00

current_time.rs

[codex] route sleep through time providers (#29973)

2026-06-24 22:17:43 -07:00

elicitation_tests.rs

elicitations: Move to shared ElicitationService (#30627)

2026-07-06 11:20:32 -07:00

elicitation.rs

elicitations: Move to shared ElicitationService (#30627)

2026-07-06 11:20:32 -07:00

environment_selection.rs

Persist selected capability roots and resolve availability per model step (#29856)

2026-06-25 17:49:43 +00:00

event_mapping_tests.rs

core: add configurable <context_window_guidance> message (#29936)

2026-06-24 18:03:44 -07:00

event_mapping.rs

Make Apps guidance react to MCP availability (#30226)

2026-07-06 14:29:19 -07:00

exec_env_tests.rs

core: expose permission profile to shell tools (#29941)

2026-06-25 19:00:23 +00:00

exec_env.rs

core: expose permission profile to shell tools (#29941)

2026-06-25 19:00:23 +00:00

exec_policy_tests.rs

Preserve managed exec policy after rules parse errors (#31188)

2026-07-06 19:28:44 -07:00

exec_policy_windows_tests.rs

[codex] Respect Windows sandbox backend in exec policy (#26307)

2026-06-05 11:20:52 -07:00

exec_policy.rs

Preserve managed exec policy after rules parse errors (#31188)

2026-07-06 19:28:44 -07:00

exec_tests.rs

Add network environment ID plumbing (#28766)

2026-06-18 14:09:38 +02:00

exec.rs

Prepare managed network sandbox context (#29456)

2026-06-23 20:07:09 +01:00

function_tool.rs

feat: extract shared tool executor interface (#22359)

2026-05-13 11:31:27 +02:00

git_info_tests.rs

Pipeline bounded AGENTS.md and Git root probes (#29870)

2026-06-24 22:58:34 +01:00

hook_runtime.rs

Support thread-level originator overrides (#29477)

2026-06-23 17:23:38 -07:00

image_preparation_tests.rs

[codex] replace remote images with model-visible error text (#29417)

2026-06-22 16:41:00 -07:00

image_preparation.rs

[codex] Use input items for Responses Lite tools (#27946)

2026-06-22 23:56:16 -07:00

installation_id.rs

feat: split memories part 2 (#19860)

2026-04-28 13:03:28 +02:00

landlock.rs

linux-sandbox: switch helper plumbing to PermissionProfile (#20106)

2026-04-28 19:43:44 -07:00

lib.rs

feat(core): emit canonical review mode items (#31473)

2026-07-08 09:59:50 -07:00

mcp_openai_file.rs

Centralize Codex Apps client handling (#29528)

2026-06-23 00:00:25 -07:00

mcp_skill_dependencies.rs

Pin MCP runtimes to model steps (#30101)

2026-06-26 00:53:07 +01:00

mcp_tool_approval_templates.rs

Uprev Rust toolchain pins to 1.95.0 (#24684)

2026-05-26 20:59:47 -07:00

mcp_tool_call_tests.rs

[codex] Enable auth elicitation by default (#28772)

2026-07-07 11:48:27 -07:00

mcp_tool_call.rs

[codex-rs] Add writes app approval mode (#30482)

2026-07-07 13:13:59 -04:00

mcp_tool_exposure_test.rs

[apps] Thread structured icon assets through app list (#29889)

2026-06-24 13:25:44 -07:00

mcp_tool_exposure.rs

[codex] Use tool search for MCP tools by default (#29486)

2026-06-22 16:45:23 -07:00

mcp.rs

Make plugin guidance react to environment readiness (#30223)

2026-07-06 07:05:40 -07:00

memory_usage.rs

[codex] simplify memory read metrics (#28164)

2026-06-15 08:28:02 -07:00

mention_syntax.rs

Extract codex-utils-plugins crate (#15746)

2026-03-25 11:05:35 -07:00

network_policy_decision_tests.rs

fix: attribut network requests to the exact exec on linux (#29697)

2026-07-06 14:51:34 -07:00

network_policy_decision.rs

refactor(proxy): clarify sandbox block messages (#17168)

2026-04-09 10:53:06 -07:00

network_proxy_loader_tests.rs

Preserve managed exec policy after rules parse errors (#31188)

2026-07-06 19:28:44 -07:00

network_proxy_loader.rs

Preserve managed exec policy after rules parse errors (#31188)

2026-07-06 19:28:44 -07:00

original_image_detail.rs

Remove js_repl feature (#19410)

2026-04-24 17:49:29 -07:00

otel_init.rs

Add process-scoped SQLite telemetry (#22154)

2026-05-11 11:32:40 -07:00

personality_migration_tests.rs

feat(app-server): add history_mode to thread (#29927)

2026-06-26 09:12:42 -07:00

personality_migration.rs

feat(app-server): list descendant threads by ancestor (#29591)

2026-06-24 13:08:14 -07:00

prompt_debug.rs

Project selected plugin runtime by environment availability (#30093)

2026-06-26 01:36:44 +01:00

realtime_context_tests.rs

feat(app-server): add history_mode to thread (#29927)

2026-06-26 09:12:42 -07:00

realtime_context.rs

feat(app-server): list descendant threads by ancestor (#29591)

2026-06-24 13:08:14 -07:00

realtime_conversation_tests.rs

Support thread-level originator overrides (#29477)

2026-06-23 17:23:38 -07:00

realtime_conversation.rs

[codex] Flush trailing realtime transcript tail (#29918)

2026-07-06 14:12:54 -07:00

realtime_prompt.rs

[codex] Consolidate shared prompts in codex-prompts (#25151)

2026-06-01 18:45:07 +00:00

responses_metadata.rs

fix: retry rejected previous-model compaction with selected model (#30319)

2026-07-07 14:26:03 -07:00

responses_retry.rs

centralize Responses retry policy (#24131)

2026-05-26 11:01:18 +02:00

rollout_budget.rs

[codex] configure rollout budget reminder thresholds (#29423)

2026-06-22 13:25:48 -07:00

rollout.rs

app-server: remove experimental persist_extended_history bool flag (#25712)

2026-06-01 23:33:42 +00:00

safety_tests.rs

apply-patch: carry paths as PathUri (#28854)

2026-06-18 19:31:19 +00:00

safety.rs

chore(core) rm AskForApproval::OnFailure (#28418)

2026-06-23 12:13:54 -07:00

sandbox_tags_tests.rs

telemetry: tag sandboxes from permission profiles (#22791)

2026-05-15 10:58:50 -07:00

sandbox_tags.rs

telemetry: tag sandboxes from permission profiles (#22791)

2026-05-15 10:58:50 -07:00

session_prefix_tests.rs

core: surface terminal subagent errors to parent agents (#28375)

2026-06-16 14:34:54 +02:00

session_prefix.rs

core: surface terminal subagent errors to parent agents (#28375)

2026-06-16 14:34:54 +02:00

session_rollout_init_error.rs

feat(app-server): add history_mode to thread (#29927)

2026-06-26 09:12:42 -07:00

session_startup_prewarm.rs

core: make AGENTS.md react to environment changes (#29810)

2026-06-24 22:57:42 -07:00

shell_snapshot_tests.rs

[codex] Bind shell snapshots to retained thread environments (#28421)

2026-06-15 20:10:53 -07:00

shell_snapshot.rs

app-server: preserve target-native environment cwd (#28146)

2026-06-16 21:42:28 +00:00

shell_tests.rs

[codex] simplify shell snapshot ownership (#27756)

2026-06-15 08:18:13 -07:00

shell.rs

[codex] simplify shell snapshot ownership (#27756)

2026-06-15 08:18:13 -07:00

skills.rs

Support thread-level originator overrides (#29477)

2026-06-23 17:23:38 -07:00

spawn.rs

core: stop threading SandboxPolicy through exec (#25700)

2026-06-03 10:41:41 -07:00

state_db_bridge.rs

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

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

stream_events_utils_tests.rs

Preserve namespaces on custom tool calls (#30302)

2026-06-27 09:54:56 -07:00

stream_events_utils.rs

Let image generation extension hosts control output persistence (#29711)

2026-06-23 18:51:49 -07:00

test_support.rs

code-mode: move to hosted mode by default (#31500)

2026-07-08 11:06:58 -07:00

thread_manager_tests.rs

Make plugin guidance react to environment readiness (#30223)

2026-07-06 07:05:40 -07:00

thread_manager.rs

code-mode: move to hosted mode by default (#31500)

2026-07-08 11:06:58 -07:00

thread_rollout_truncation_tests.rs

feat(app-server): add optional turn_id to thread/fork (#30277)

2026-06-26 19:35:54 +00:00

thread_rollout_truncation.rs

feat(app-server): add optional turn_id to thread/fork (#30277)

2026-06-26 19:35:54 +00:00

turn_diff_tracker_tests.rs

path-uri: clarify host-native path conversion (#29501)

2026-06-23 00:02:33 +00:00

turn_diff_tracker.rs

core: cache turn diff rendering (#27489)

2026-06-10 17:17:44 -07:00

turn_metadata_tests.rs

fix(core): restore thread_source in x-codex-turn-metadata (#29455)

2026-06-22 09:05:27 -07:00

turn_metadata.rs

fix(core): restore thread_source in x-codex-turn-metadata (#29455)

2026-06-22 09:05:27 -07:00

turn_timing_tests.rs

Preserve namespaces on custom tool calls (#30302)

2026-06-27 09:54:56 -07:00

turn_timing.rs

[codex] Support sequential cutoff reasoning summaries (#31306)

2026-07-06 23:23:56 -04:00

user_shell_command_tests.rs

Organize context fragments (#18794)

2026-04-20 22:39:17 -07:00

user_shell_command.rs

core: remove redundant TurnContext and Prompt fields (#28638)

2026-06-16 22:17:24 -07:00

util_tests.rs

Trim TUI legacy core helper usage (#22695)

2026-05-14 16:54:59 -07:00

util.rs

Trim TUI legacy core helper usage (#22695)

2026-05-14 16:54:59 -07:00

web_search.rs

add missing fields to WebSearchAction and update app-server types (#10276)

2026-01-30 16:37:56 -08:00

windows_sandbox_read_grants_tests.rs

windows-sandbox: pass workspace roots to runner (#24108)

2026-05-28 15:26:55 -07:00

windows_sandbox_read_grants.rs

windows-sandbox: pass workspace roots to runner (#24108)

2026-05-28 15:26:55 -07:00

windows_sandbox_tests.rs

config: remove legacy profile v1 resolution (#24051)

2026-05-22 12:13:52 +02:00

windows_sandbox.rs

Add Windows sandbox provisioning setup command (#24831)

2026-05-29 11:01:44 -07:00