jif 612e6491d5 Prewarm shell snapshots for eligible turns (#42137) ...

## Why

Shell Snapshot V2 previously captured the login-shell environment lazily when a
command started, adding that work to the command path.

## What changed

- Start one asynchronous snapshot capture after turn hooks accept the turn, so
  eligible local `exec_command` calls can reuse it without blocking the model.
- Use the turn's resolved tools, permissions, sandbox, environment, and shell
  configuration, and skip prewarming for unsupported or network-managed cases.
- Cancel outstanding prewarming during shutdown. Keep failed speculative
  captures retryable by real commands without consuming their retry budget.

## Testing

Added coverage for non-blocking capture and reuse, failure recovery, sandbox and
permission isolation, shutdown cancellation, hook-stopped turns, eligibility
gates, and concurrent capture retries.

GitOrigin-RevId: ff24a4f0328c06653e09d03fd0a3db1eccd65030

2026-09-01 21:16:12 +00:00

..

snapshots

Track window and fork positions in turn metadata (#40987)

2026-08-26 22:37:59 +00:00

abort_tasks.rs

Add per-turn cyber access program selection (#40687)

2026-08-25 19:54:52 +00:00

additional_context.rs

Update tests for default-enabled update_plan (#41630)

2026-08-30 07:40:36 +00:00

agent_execution.rs

Honor environment-resolved workspace roots (#40912)

2026-08-26 16:28:35 +00:00

agent_websocket.rs

Make the update_plan tool opt-in (#41744)

2026-08-31 00:53:30 +00:00

agents_md.rs

Gate content item kinds behind a feature flag (#40450)

2026-08-24 18:22:13 +00:00

apply_patch_cli.rs

Standardize shell execution on unified exec (#39757)

2026-08-20 17:46:05 +00:00

apply_patch_serialization.rs

Standardize shell execution on unified exec (#39757)

2026-08-20 17:46:05 +00:00

approvals.rs

Add credential brokering to network proxy feature config (#40466)

2026-08-24 19:52:27 +00:00

audio_truncation.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

auto_review.rs

Make Ultra reasoning fallback model-aware (#41206)

2026-08-27 21:03:09 +00:00

catalog_permission_messages.rs

Source async user message descriptions from the model catalog (#41461)

2026-08-29 03:44:01 +00:00

cli_stream.rs

Sanitize credentials from Git remote metadata (#40713)

2026-08-25 21:34:05 +00:00

client_websockets.rs

Preserve raw response usage metadata (#41980)

2026-09-01 05:17:11 +00:00

client.rs

Remove selected core test cases (#42066)

2026-09-01 14:43:27 +00:00

cloud_config.rs

Preserve managed deny-read rules across permission updates (#40004)

2026-08-21 20:15:23 +00:00

code_mode_elicitation.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

code_mode.rs

Omit undersized WAV output from Code Mode (#41934)

2026-08-31 23:36:04 +00:00

codex_delegate.rs

Preserve MCP tool output as content items (#40737)

2026-08-25 23:42:50 +00:00

collaboration_instructions.rs

Remove selected core test cases (#42066)

2026-09-01 14:43:27 +00:00

compact_remote_parity.rs

Standardize shell execution on unified exec (#39757)

2026-08-20 17:46:05 +00:00

compact_remote.rs

Persist response token usage in rollout history (#41912)

2026-08-31 21:15:38 +00:00

compact_resume_fork.rs

Update tests for default-enabled update_plan (#41630)

2026-08-30 07:40:36 +00:00

compact.rs

Persist response token usage in rollout history (#41912)

2026-08-31 21:15:38 +00:00

context_annotations.rs

Update tests for default-enabled update_plan (#41630)

2026-08-30 07:40:36 +00:00

current_time_reminder.rs

Add configurable gating for the sleep tool (#41243)

2026-08-28 02:09:07 +00:00

cyber_access_program.rs

Add per-turn cyber access program selection (#40687)

2026-08-25 19:54:52 +00:00

cyber_exec_policy.rs

Standardize shell execution on unified exec (#39772)

2026-08-20 18:29:35 +00:00

daybreak_access.rs

Attach verified access context to eligible plugin MCP calls (#41005)

2026-08-27 00:02:26 +00:00

deprecation_notice.rs

Standardize shell execution on unified exec (#39772)

2026-08-20 18:29:35 +00:00

exec_policy.rs

Honor environment-resolved workspace roots (#40912)

2026-08-26 16:28:35 +00:00

exec.rs

…

extension_sandbox.rs

Expand extension permission regression coverage (#41946)

2026-09-01 00:42:19 +00:00

external_auth.rs

Surface model provider authentication recovery progress (#41239)

2026-08-28 01:14:02 +00:00

fork_thread.rs

Restore thread cwd from owned settings snapshots (#41567)

2026-08-29 19:57:06 +00:00

git_enrichment.rs

Bound Git root discovery for metadata enrichment (#42132)

2026-09-01 20:41:32 +00:00

guardian_authorization.rs

Preserve Guardian authorization across history compaction (#41660)

2026-08-30 11:56:24 +00:00

guardian_history.rs

Preserve Guardian history across thread reconstruction (#42065)

2026-09-01 14:33:58 +00:00

guardian_mcp_elicitation.rs

Attribute nested REPL reviews to their tool calls (#42082)

2026-09-01 15:34:03 +00:00

guardian_review_cancellation.rs

Cancel Guardian reviews with their tool calls (#40021)

2026-08-21 21:51:12 +00:00

guardian_review.rs

Improve Guardian report diagnostics (#42033)

2026-09-01 11:14:20 +00:00

guardian_subagent_authorization.rs

Improve Guardian report diagnostics (#42033)

2026-09-01 11:14:20 +00:00

hooks_executor.rs

Support app targets in executor plugin hooks (#41456)

2026-08-29 03:14:35 +00:00

hooks_mcp.rs

Set working directories for environment MCP tests (#41683)

2026-08-30 14:04:06 +00:00

hooks.rs

Treat bundled cleanup hooks as built-ins (#42110)

2026-09-01 18:02:27 +00:00

image_rollout.rs

Annotate user input and contextual fragments with content kinds (#40196)

2026-08-23 06:10:44 +00:00

injected_models_cache.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

interrupt_hooks.rs

Add hooks for interrupted turns (#40511)

2026-08-25 01:27:18 +00:00

items.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

json_result.rs

Remove redundant test coverage (#42069)

2026-09-01 15:04:11 +00:00

live_cli.rs

…

mcp_auth_elicitation.rs

Preserve MCP tool output as content items (#40737)

2026-08-25 23:42:50 +00:00

mcp_auth_refresh.rs

Attach verified access context to eligible plugin MCP calls (#41005)

2026-08-27 00:02:26 +00:00

mcp_oauth_refresh_tests.rs

Prepare MCP connections for coordinated OAuth refresh (#42128)

2026-09-01 20:26:57 +00:00

mcp_optional_startup_grace.rs

Make the optional MCP startup grace configurable (#41199)

2026-08-27 20:31:40 +00:00

mcp_refresh_cleanup.rs

Negotiate MCP extensions per app-server session (#36910)

2026-08-04 15:23:43 +00:00

mcp_startup_refresh_http_proxy.rs

Honor environment-resolved workspace roots (#40912)

2026-08-26 16:28:35 +00:00

mcp_tool_cache.rs

Set working directories for environment MCP tests (#41683)

2026-08-30 14:04:06 +00:00

mcp_tool_exposure.rs

Update tests for default-enabled update_plan (#41630)

2026-08-30 07:40:36 +00:00

mcp_turn_metadata.rs

Include app link metadata in MCP approval elicitations (#42134)

2026-09-01 20:54:25 +00:00

mod.rs

Allow per-call sideband endpoints for existing realtime calls (#41923)

2026-08-31 22:29:40 +00:00

model_overrides.rs

…

model_runtime_selectors.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

model_switching.rs

Make Ultra reasoning fallback model-aware (#41206)

2026-08-27 21:03:09 +00:00

model_visible_layout.rs

Update tests for default-enabled update_plan (#41630)

2026-08-30 07:40:36 +00:00

models_cache_ttl.rs

Source async user message descriptions from the model catalog (#41461)

2026-08-29 03:44:01 +00:00

models_etag_responses.rs

Standardize shell execution on unified exec (#39757)

2026-08-20 17:46:05 +00:00

multi_agent_mode.rs

Source proactive multi-agent instructions from the model catalog (#41457)

2026-08-29 03:28:19 +00:00

multi_agent_resume.rs

Wait for turn completion events in multi-agent resume tests (#39702)

2026-08-20 11:57:32 +00:00

multi_exec_server_sandbox.rs

Attach verified access context to eligible plugin MCP calls (#41005)

2026-08-27 00:02:26 +00:00

network_approval.rs

Require approval for input to escalated terminals (#40978)

2026-08-26 21:39:05 +00:00

openai_file_mcp.rs

Preserve MCP tool output as content items (#40737)

2026-08-25 23:42:50 +00:00

otel.rs

Remove selected core test cases (#42066)

2026-09-01 14:43:27 +00:00

override_updates.rs

…

pending_input.rs

Persist response token usage in rollout history (#41912)

2026-08-31 21:15:38 +00:00

permissions_messages.rs

Source async user message descriptions from the model catalog (#41461)

2026-08-29 03:44:01 +00:00

personality.rs

Make the update_plan tool opt-in (#41744)

2026-08-31 00:53:30 +00:00

plugins.rs

Prefer remote Sites over the bundled plugin (#42100)

2026-09-01 16:58:54 +00:00

prompt_cache_key.rs

Use session IDs for prompt cache keys (#33035)

2026-07-14 10:37:23 +00:00

prompt_caching.rs

Make the update_plan tool opt-in (#41744)

2026-08-31 00:53:30 +00:00

prompt_debug_tests.rs

Enable git attribution across Codex entry points (#34819)

2026-07-22 20:23:35 +00:00

quota_exceeded.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

realtime_conversation.rs

Record realtime conversation history in Core (#41924)

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

realtime_initial_items.rs

Add a realtime delegation acknowledgement control (#36413)

2026-08-01 01:17:26 +00:00

realtime_sideband_endpoint.rs

Allow per-call sideband endpoints for existing realtime calls (#41923)

2026-08-31 22:29:40 +00:00

remote_env.rs

Match Windows shell guidance to the executor platform (#41368)

2026-08-28 17:09:22 +00:00

remote_models.rs

Make the update_plan tool opt-in (#41744)

2026-08-31 00:53:30 +00:00

request_compression.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

request_permissions_tool.rs

Make permission transforms aware of executor path context (#41909)

2026-08-31 20:50:44 +00:00

request_permissions.rs

Make permission transforms aware of executor path context (#41909)

2026-08-31 20:50:44 +00:00

request_plugin_install.rs

Set working directories for environment MCP tests (#41683)

2026-08-30 14:04:06 +00:00

request_user_input.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

responses_api_proxy_headers.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

responses_lite.rs

Give Responses Lite prefix items stable IDs (#40962)

2026-08-26 19:44:12 +00:00

responses_system_proxy.rs

Migrate login HTTP construction to HttpClient (#34643)

2026-07-22 00:50:28 +00:00

resume_warning.rs

Persist response token usage in rollout history (#41912)

2026-08-31 21:15:38 +00:00

resume.rs

Use turn environment settings for sandbox execution (#40771)

2026-08-26 03:28:57 +00:00

retry_after.rs

Decouple HTTP retry backoff from overload integration testing (#41313)

2026-08-28 10:39:10 +00:00

review.rs

Allow models to enable token budgeting by default (#41803)

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

rmcp_client.rs

Prepare MCP connections for coordinated OAuth refresh (#42128)

2026-09-01 20:26:57 +00:00

rollout_budget.rs

Annotate user input and contextual fragments with content kinds (#40196)

2026-08-23 06:10:44 +00:00

rollout_compression.rs

Include shared histories in rollout compression (#42039)

2026-09-01 12:23:20 +00:00

rollout_list_find.rs

Honor the configured SQLite home across state consumers (#34994)

2026-07-23 19:19:35 +00:00

safety_buffering.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

safety_check_downgrade.rs

Standardize shell execution on unified exec (#39757)

2026-08-20 17:46:05 +00:00

search_tool.rs

Set working directories for environment MCP tests (#41683)

2026-08-30 14:04:06 +00:00

send_user_message_async.rs

Source async user message descriptions from the model catalog (#41461)

2026-08-29 03:44:01 +00:00

settings_commits.rs

Restore thread cwd from owned settings snapshots (#41567)

2026-08-29 19:57:06 +00:00

settings_constraints.rs

Validate step settings against proposed permissions (#40647)

2026-08-25 17:27:04 +00:00

shell_snapshot.rs

Prewarm shell snapshots for eligible turns (#42137)

2026-09-01 21:16:12 +00:00

skill_approval.rs

Standardize shell execution on unified exec (#39757)

2026-08-20 17:46:05 +00:00

skills_extension.rs

Expand extension permission regression coverage (#41946)

2026-09-01 00:42:19 +00:00

skills.rs

Reduce skill catalog prompts with path aliases (#41011)

2026-08-27 01:22:23 +00:00

spawn_agent_description.rs

Make Ultra reasoning fallback model-aware (#41206)

2026-08-27 21:03:09 +00:00

sqlite_state.rs

Track window and fork positions in turn metadata (#40987)

2026-08-26 22:37:59 +00:00

step_settings_snapshots.rs

Snapshot resolved settings for each model step (#40651)

2026-08-25 17:41:22 +00:00

step_settings.rs

Allow updating the approval reviewer for active turns (#42121)

2026-09-01 19:19:52 +00:00

stream_error_allows_next_turn.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

stream_no_completed.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

subagent_notifications.rs

Update tests for default-enabled update_plan (#41630)

2026-08-30 07:40:36 +00:00

subagent_service_tier.rs

Make subagents follow the root service tier (#41308)

2026-08-28 09:48:13 +00:00

token_budget.rs

Allow models to enable token budgeting by default (#41803)

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

token_usage_rollout.rs

Persist response token usage in rollout history (#41912)

2026-08-31 21:15:38 +00:00

tool_harness.rs

Update tests for default-enabled update_plan (#41630)

2026-08-30 07:40:36 +00:00

tool_lifecycle.rs

Set working directories for environment MCP tests (#41683)

2026-08-30 14:04:06 +00:00

tool_parallelism.rs

Standardize shell execution on unified exec (#39757)

2026-08-20 17:46:05 +00:00

tools.rs

Update tests for default-enabled update_plan (#41630)

2026-08-30 07:40:36 +00:00

truncation.rs

Set working directories for environment MCP tests (#41683)

2026-08-30 14:04:06 +00:00

turn_input_submission.rs

Add per-turn cyber access program selection (#40687)

2026-08-25 19:54:52 +00:00

turn_state.rs

Standardize shell execution on unified exec (#39757)

2026-08-20 17:46:05 +00:00

unified_exec_process_events.rs

Apply remote platform semantics to exec safety checks (#42113)

2026-09-01 18:24:56 +00:00

unified_exec_stdin_approval.rs

Review terminal input against retained permissions (#41328)

2026-08-28 11:38:03 +00:00

unified_exec_stdin_review_size.rs

Reject NUL bytes in reviewed terminal input (#41354)

2026-08-28 15:44:48 +00:00

unified_exec_zsh_fork_approvals.rs

Require approval for input to escalated terminals (#40978)

2026-08-26 21:39:05 +00:00

unified_exec.rs

Preserve one-shot exec when unified exec is disabled (#41393)

2026-08-28 19:04:54 +00:00

unstable_features_warning.rs

Extract persisted history types into a dedicated crate (#37871)

2026-08-10 19:26:52 +00:00

user_notification.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

user_shell_cmd.rs

Support configurable timeouts for thread shell commands (#41384)

2026-08-28 18:07:40 +00:00

view_image.rs

Make Ultra reasoning fallback model-aware (#41206)

2026-08-27 21:03:09 +00:00

web_search.rs

Add an Amazon Bedrock Runtime provider (#38470)

2026-08-14 01:23:59 +00:00

websocket_fallback.rs

Unify turn input submission and routing (#38275)

2026-08-13 00:00:16 +00:00

window_headers.rs

Track window and fork positions in turn metadata (#40987)

2026-08-26 22:37:59 +00:00

windows_sandbox.rs

Preserve Windows root reads with deny-read rules (#40441)

2026-08-24 17:29:21 +00:00

workspace_roots.rs

Honor environment-resolved workspace roots (#40912)

2026-08-26 16:28:35 +00:00

worktree_trust.rs

Validate linked worktrees before inheriting project trust (#39616)

2026-08-20 06:29:32 +00:00