## Why
Environment-owned permission profiles and workspace roots must remain effective
without being persisted or restored as thread-owned settings.
## What changed
- Keep thread settings snapshots and restore data separate from the effective
configuration supplied by the primary environment.
- Use resolved environment permissions, active profiles, workspace roots, and
network policy when building turn context and session events.
- Preserve environment selections when agents are evicted, resumed, or spawned,
and validate owner configuration when it becomes ready.
- Start memory initialization only after the primary environment is configured.
## Testing
- Extend remote-environment and multi-agent tests to cover settings persistence,
owner permission profiles, workspace roots, spawning, eviction, and resume.
GitOrigin-RevId: d82f126981cd0190233020bbdd61d96c70558868
## What changed
- Stop writing `last_updated` and `last_revision` to marketplace entries in
`config.toml`; keep the activated revision in
`.codex-marketplace-install.json` instead.
- Use installed marketplace metadata to detect up-to-date checkouts.
- Snapshot the installed marketplace before activation and roll back a stale
upgrade if another installation changed the destination concurrently.
## Testing
- Verify marketplace add and upgrade operations leave `config.toml` unchanged.
- Cover restoring a newer concurrently installed marketplace when a stale
activation is rejected.
GitOrigin-RevId: 10942c3fc7c6c3f68b7d5953e8c1b5e86bf71866
## Why
New non-ephemeral threads have no persisted rollout or preview until their first
turn, so moving them into a section could leave them absent from section-filtered
thread lists.
## What changed
- Materialize and flush a non-ephemeral thread before applying an explicit
section move.
- Include explicitly sectioned threads with empty previews in section-filtered
queries, and update the partial indexes to cover them.
## Testing
- Add an app-server test that moves a newly started thread into and out of the
pinned section before its first turn.
- Cover empty-preview threads in recency and section-position query tests.
GitOrigin-RevId: aa3c4daf9890f06c08b93cd60f146099cbc6cfb2
## Why
Background marketplace and plugin refreshes can otherwise inherit repository-local or command-scoped Git configuration from the project that launched Codex. That configuration can redirect remotes or invoke Git helpers during an automatic operation.
## What changed
- Run automatic marketplace upgrades, plugin cache refreshes, and curated marketplace lookups with repository-scoped Git environment variables removed and a temporary trusted repository under the Codex home.
- Carry the automatic/manual trust mode through marketplace upgrades and plugin materialization.
- Preserve the caller's Git configuration for explicit marketplace upgrades, plugin installs, and refreshes.
## Testing
- Add regression coverage for repository URL rewrites, protocol helpers, command-scoped configuration, and manual Git filters.
GitOrigin-RevId: 957f45fa3bd7ce7e1b83355f276cf65dc5e99c8e
## What changed
- Emit `codex_control_tool_call_event` for built-in control tools such as
`request_user_input`, `update_plan`, `view_image`, and goal tools.
- Record correlation and timing metadata plus completed, failed, rejected, or
interrupted outcomes, and include these calls in turn-level tool counts.
- Keep tool arguments out of control-tool analytics events.
## Testing
- Extend the app-server turn profile test to cover successful and failed
control tools, event correlation, turn counts, and argument exclusion.
GitOrigin-RevId: c20f73dfb79654e31b4b5040eddb0e0d91cae10d
## What changed
- Move the Guardian thread lifecycle contributor and subagent-spawn context into `codex-guardian-v2`.
- Install the lifecycle contributor and asynchronous risk scorer through a single extension entry point.
- Remove the redundant `codex-guardian` crate and group the existing scorer implementation under `async_scorer`.
GitOrigin-RevId: 97141190c843e588b8c09c9ccd3fe00e1fae39a4
## What changed
- Add environment-provided MCP restrictions for configured and plugin-provided servers.
- Disable attachment-scoped servers while their environment configuration is pending, failed, or unselected, while preserving selected-plugin access and the controller-owned Apps server.
- Apply the resolved policy to runtime startup, model tool exposure, telemetry, OAuth flows, and skill dependency installation.
## Testing
- Cover policy filtering for configured and plugin servers, environment state transitions, Apps ownership, and managed OAuth rejection.
GitOrigin-RevId: 7ca5d4dda14068e758497f88835d5cba685e159e
## What changed
- Recognize `edu_plus` and `edu_pro` as distinct education workspace plans across authentication, backend rate-limit mapping, and app-server account schemas.
- Include both plans in cloud configuration eligibility and use the education usage-limit behavior.
- Display the plans as `Edu Plus` and `Edu Pro` in the TUI status view.
## Testing
- Cover parsing, workspace classification, account and rate-limit responses, cloud configuration eligibility, usage-limit messages, and TUI display names for the new variants.
GitOrigin-RevId: bf8add780ae03a3c6d10c4f4afa0da262c37928e
## What changed
- Add an optional `delivery` field to agent message events and app-server
`agentMessage` items, with `"async"` identifying a user-visible message sent
without ending the current turn.
- Preserve the marker through legacy event conversion, thread history
materialization, replay, and generated JSON and TypeScript schemas.
- Require delivery of async agent message completion notifications on the
in-process app-server transport.
## Testing
- Cover preservation of async delivery metadata in thread history.
- Cover delivery-required classification for async agent messages.
GitOrigin-RevId: f92ba25de1293ee271404badfdf0d117d6530329
## What changed
- Carry selected plugin identities from MCP discovery into per-turn extension data, limited to capability roots that are ready for the turn.
- Annotate executor skill catalog entries with the matching plugin ID and `user` scope.
- Include that attribution in `skill_invocation` analytics for both explicit and implicit executor skill invocations.
## Testing
- Extend the executor skills app-server test to verify plugin ID, skill scope, and invocation type for explicit and implicit analytics events.
GitOrigin-RevId: 9345600ae29bcb8eb894fffd2d6f7b05f22ebf74
## What changed
- Include legacy managed-file and MDM settings when resolving project root markers and project trust in both canonical and executor-local config loads.
- Preserve the existing managed-layer precedence in the final config stack and resolve managed relative paths against the same bases used by the final loader.
- Update explicit-untrusted warnings to describe the effective configuration and direct users to an administrator when the setting is managed.
## Testing
- Cover managed root markers, managed trust overrides, MDM precedence, app-server config reads, and the remote TUI warning.
GitOrigin-RevId: 9b5ddd54b4530f73589d6842a15cbab7e6d6bbb9
## What changed
- Stop writing Guardian v2 security risk scores to rollout history.
- Treat resumed and forked threads as having no previous Guardian score, so their
first tool approval is classified and reviewed normally.
- Remove the now-unused `codex-history` dependency from the Guardian v2
extension.
## Testing
- Update app-server coverage for new, resumed, and forked threads to wait for
classification completion and verify the expected approval reviews.
GitOrigin-RevId: 74d9caa903a1ff9d38e577b4697b5f8970f11ebb
## What changed
- Execute `mcp_tool` hook handlers through the session's shared MCP runtime, including managed hook configurations.
- Restrict hook calls to already-connected, cataloged, and policy-allowed tools. Unavailable servers fail immediately without starting or reconnecting them.
- Pass session metadata to hook tools, cap hook timeouts by the server timeout, and invoke hooks without model-tool approval or recursive hook dispatch.
- Record handler type and execution mode in hook telemetry, and mark memory as externally influenced after successful or blocking MCP hooks when configured.
## Testing
- Added end-to-end coverage for prompt interpolation, hidden tools, blocking decisions, unavailable servers, thread metadata, approval bypass, and memory-mode handling.
- Added MCP runtime coverage for startup readiness, tool filters, catalog revisions, and managed connector policy.
GitOrigin-RevId: 1647cb801ebc5fa385c7bda9d9c266a389c611b8
## Why
`codex-http-client` is the intended owner of `reqwest`, while direct first-party
dependencies are tracked as migration debt.
## What changed
- Build app-server test HTTP clients through `HttpClientBuilder`.
- Use `http` and `url` types directly where only protocol types are needed.
- Remove `reqwest` from `codex-app-server` and its temporary dependency-policy
exception.
GitOrigin-RevId: ff9f14a54bc20ec1ea39050bbe08c381ee376119
## Why
Submitting a diagnostic report could appear successful without confirming that Sentry accepted the upload, leaving callers unable to detect transport or HTTP failures.
## What changed
- Send report envelopes through the route-aware HTTP client and await the response.
- Reject redirects, propagate transport and non-success HTTP responses, and include the full error chain in upload JSON-RPC errors.
- Add structured logs for upload attempts, successes, and failures without including report contents.
## Testing
Added coverage for successful uploads, rejected responses, blocked redirects, transport failures, and app-server JSON-RPC error reporting.
GitOrigin-RevId: 07b5cfccd7a65f35d51a720537d2cd8962ed6cdb
## What changed
- Add experimental `account/bedrock/discover` and `account/bedrock/setup`
requests to the app-server protocol.
- Define discovery results for AWS profiles and environment credentials, plus
setup inputs for profiles, environment credentials, and access keys.
- Export the new types in the experimental protocol schema. The app server
currently returns `method not found` for both requests because setup is not
yet implemented.
GitOrigin-RevId: 656b4bc11231a417e97041068cecc5dc692786e3
## What changed
- Replace the minimal default classifier prompt with predictive security-review guidance covering authorization, action risk, untrusted evidence, and browser or computer use.
- Trigger full Guardian review at an `action_risk` score of `0.5` or higher for the new default prompt, while retaining the `0.8` calibration for custom and model-provided prompts unless they specify a threshold.
- Render security policy configuration into prompt templates before enforcing the classifier instruction token limit. Prompts without the policy placeholder retain the existing append-and-truncate behavior.
## Testing
- Cover default, custom, and model-provided prompt thresholds and precedence.
- Verify policy substitution, truncation, sampling requests, and full review at the threshold boundary.
GitOrigin-RevId: 7aad9e2d8c9fbea453dc52147a3d0a46bf191aec
## What changed
- Add an optional `connectorId` to `mcpServer/resource/read`.
- Forward the selected connector through `x-codex-turn-metadata` for threaded and threadless resource reads, restricting hosted app resources to that connector.
- Update the generated protocol schemas and app-server documentation.
GitOrigin-RevId: 5cc94d703abbbb6086665910c1c9ed5dc7075210
## Why
Repository-scoped imports must not follow redirected Codex paths and write
generated configuration outside the repository.
## What changed
- Reject repository migration scopes when generated configuration paths are
symlinks or, on Windows, reparse points.
- Recheck hook and subagent destinations during import, skipping redirected
directories, files, and dangling links without reporting them as imported.
## Testing
Add service and app-server coverage for redirected generated destinations,
including a repository path replaced with a symlink after detection.
GitOrigin-RevId: 3afb521ead9d76250f0e967eccfdd1dc194f027a
## Why
Compaction can remove the tool-call events that associate an MCP app widget with
the tool, account, and URI needed to authorize later resource reads.
## What changed
- Store a bounded MCP resource-origin checkpoint with each compacted rollout.
- Restore the checkpoint when resuming a session so existing widgets remain
readable after compaction and restart.
- Discard saved origins when rollback rewrites history across the compaction
boundary, and reject oversized or invalid checkpoints during restoration.
## Testing
- Extend the app-server MCP resource-origin test to compact a paginated thread,
continue the conversation, and read the original widgets before and after a
restart.
- Verify rollback clears provenance that no longer matches retained history.
GitOrigin-RevId: 7f91c6202fe8d9be21c78dda42fa205937c44263
## Why
App widgets need to read resources using the app and account context of the
tool call that produced them, including after a thread is restored.
## What changed
- Add an optional `originCallId` to `mcpServer/resource/read` requests and
return it on successful scoped reads.
- Track bounded provenance for successful app tool calls in thread history and
use the current tool binding, account link, and app policy when reading the
associated widget resource.
- Reject missing, mismatched, failed, or ambiguous origins, while keeping
app-only tools available for widget reads without exposing them to the model.
## Testing
Add app-server coverage for scoped widget reads across both history modes,
ephemeral and persistent threads, server restarts, app-only visibility, and
invalid origin cases.
GitOrigin-RevId: 11eaefc066b2a3b639599e4cbdef680233d150a2
## Why
Repository manifests and user-configured sources must not be able to claim names reserved for managed or remote marketplaces.
## What changed
- Reject reserved marketplace names from unmanaged sources during discovery, installation, configuration projection, and configured marketplace upgrades, even when source restrictions are disabled.
- Recognize managed marketplaces only at their expected paths. Preserve the required macOS and Windows path equivalences without allowing symlink aliases to inherit managed provenance.
## Testing
- Cover reserved-name rejection for plugin list and install RPCs, configured upgrades, unrestricted policy, and remote marketplace names.
- Cover symlink spoofing and Windows managed-path normalization.
GitOrigin-RevId: a610bdc382857f306dd3e244f0992de2ec279673
## What changed
- Add the experimental `autoApprovalReview/strictReviewRequired` app-server notification with the review's `threadId`, `turnId`, and `startedAtMs`.
- Emit it when Guardian v2 leaves an approval review in progress because the action risk is elevated or its score is stale.
- Export the notification through the Rust, TypeScript, and JSON schema surfaces and route it to the associated thread.
## Testing
- Cover strict-review reason tracking for elevated and stale risk scores.
- Verify that high-risk approval routing emits one notification whose identifiers and timestamp match the review-started event.
GitOrigin-RevId: e65352894520bfb756c75b2c95e2e149f9767bb2
## Why
Cold resumes and forks could lose the thread's active permission profile and
fall back to the current configured default.
## What changed
- Restore the latest persisted approval policy, approvals reviewer, and active
permission-profile ID when resuming or forking a thread.
- Re-resolve persisted profile IDs through current configuration and
requirements. Missing or invalid profiles fall back to the configured
default, while threads without a persisted profile continue to use current
configuration.
- Keep explicit permission and approval overrides ahead of persisted settings.
## Testing
Added coverage for legacy and paginated histories, settings updates, explicit
overrides, removed or changed profiles, requirement fallbacks, and forks.
GitOrigin-RevId: 2289af2f3206bf131a6ffe0e8447e8d402e76c47
## What changed
- Add a shared helper for recovering the latest persisted approvals reviewer from turn context and thread settings history.
- Use the helper when resuming and forking threads while continuing to honor explicit request overrides.
- Fall back to an older persisted reviewer when the latest turn context omits the field.
## Testing
- Add unit coverage for settings snapshot precedence, turn context precedence, and fallback to an older reviewer.
GitOrigin-RevId: dfc0332b0f1410a4c9a550236eb32624f5133baa
## What changed
- Add the optional `active_permission_profile` field to `TurnContextItem` to record the built-in or named profile that produced the effective permission profile.
- Populate the field when serializing a turn context while preserving compatibility with records where it is absent.
## Testing
- Add coverage verifying that turn-context serialization stores the active permission profile.
GitOrigin-RevId: d69142ab1b26595ab406235f89818ef41370e963
## What changed
- Fetch recommendations from the Codex-specific `/ps/plugins/suggested/codex` endpoint and parse its compact response shape.
- Fetch the selected plugin's details before presenting an install request, using them to verify availability and populate connector metadata.
- Skip install elicitation when the selected recommendation is no longer available, and return a retryable response when its metadata cannot be verified.
## Testing
- Cover the new recommendation route and response shape.
- Cover metadata hydration for available plugins and rejection of unavailable plugins.
GitOrigin-RevId: 2b0e2d70572aae2b7cd8e458b42e9dd14be3dbaf
## Why
App-server response diagnostics can include access tokens returned by the ChatGPT auth refresh flow.
## What changed
- Log successfully parsed server responses instead of raw JSON-RPC response payloads.
- Redact `access_token` from the `Debug` representation of `ChatgptAuthTokensRefreshResponse`.
- Avoid formatting callback send errors that can retain the original response payload.
GitOrigin-RevId: fd47485b38ed89527b25937c759b3273581f6ae6
## What changed
- Remove `experimental_thread_config_endpoint` from the configuration model and schema.
- Stop app-server and the in-process client from constructing a remote thread config loader from local configuration.
- Keep the thread config loader supplied at app-server startup fixed for the lifetime of the config manager.
GitOrigin-RevId: e7907fee2d631e7ecf89ec6bac8f22bc2c221350
## What changed
- Give `PluginsManager` a shared `AuthManager` instead of a separately mutable authentication-mode snapshot.
- Read the current authentication mode and credentials from that shared manager for plugin discovery, startup tasks, CLI commands, MCP setup, and external-agent migration.
- Update test helpers and coverage to exercise plugin projections and curated marketplace selection as authentication changes.
GitOrigin-RevId: 600c94de5130eda2da5727e1a0b4d39083fefc56
## What changed
Gate plugin hook resolution in `hooks/list` on both the hooks and plugins
feature flags. When hooks are disabled, return the default empty plugin hook
outcome without loading plugin hook sources or warnings.
GitOrigin-RevId: 166070576effaba248b790c4f2a47e6e9a7b1112
## What changed
- Add `cli_auth_credentials_store` and `chatgpt_base_url` as exact managed requirements loaded from local requirements configuration.
- Apply these requirements to runtime and bootstrap authentication configuration, overriding user-configured values.
- Expose the managed values through `configRequirements/read` and reject attempts to change them through config write APIs.
- Ignore these local-only authentication requirements in cloud-managed requirement layers.
## Testing
- Cover requirement loading and composition, runtime and bootstrap overrides, app-server responses, and read-only config writes.
GitOrigin-RevId: 8ea9c096386072036ca5441f3d48af8707988a65
## Why
Unified exec could drop network approval registration when a selected environment used a Windows working directory on a non-Windows host because the trigger path could not be converted to a host absolute path.
## What changed
- Keep network approval trigger working directories as `PathUri` values and render them with their inferred native path syntax for Guardian requests.
- Fall back to the selected turn environment only when a trigger path can be converted to a host absolute path.
- Reject selected environment working directories larger than 8 KiB at the thread-manager validation boundary.
## Testing
- Cover managed-network approval registration for a foreign Windows working directory.
- Verify that oversized working directories are rejected as invalid `thread/start` requests.
GitOrigin-RevId: 646fbf12115a35a7e5cb04b511464797bee6647b
## Why
Resumed and forked threads need their persisted Guardian risk state available when routing later approval requests.
## What changed
- Initialize a session's `SecurityRiskScore` from the latest score in its rollout history when no score was supplied explicitly.
- Preserve the inherited score when resuming or forking a thread so low-risk actions can skip redundant Guardian reviews.
## Testing
- Add app-server coverage for inheriting the latest Guardian score when resuming and forking threads.
GitOrigin-RevId: 95a6c803f8dae75516d1da9d66a722379a0a7ef2
## Why
Config reads arriving while a long-running shared read was active waited for that
request to finish, even though they could safely run concurrently.
## What changed
- Admit newly queued shared reads into the active batch until an exclusive write
is queued, preserving the write as a fairness barrier.
- Treat `hooks/list` and `configRequirements/read` as shared config reads.
- Cover concurrent reads, read/write ordering, and config reads completing
alongside a `skills/list` request.
GitOrigin-RevId: 8194301c2ba60be0fc71b8915923af9accc745dc
## What changed
- Add end-to-end app-server tests for MCP tool approvals with Guardian V2 and automatic review enabled.
- Verify that sampling receives the thread context, uses a thread-scoped prompt cache key, and persists the resulting action risk score.
- Cover both routing outcomes: low-risk actions skip later Guardian reviews, while high-risk actions continue through full review.
GitOrigin-RevId: 78ba2b0560caf701ad333785c4dda4f7d2be4f2c
## What changed
- Track app-server turn lifecycle events for OpenAI API-key sessions when OTLP telemetry export is enabled.
- Query the turn-cost endpoint after completed or aborted turns and emit `codex.turn_cost` with the estimated USD cost, interruption state, model, speed, and reasoning effort.
- Preserve provider organization and project headers, wait for all observed responses to be priced, and retry pending or transiently failed queries with bounded tracking.
- Re-probe availability after authentication changes and shut the worker down with other app-server background tasks.
## Testing
- Cover late API-key login, transient probe failures, telemetry after thread removal, and turns with multiple responses.
- Verify turn-cost requests use API-key authentication and provider scope headers and deserialize priced response data.
GitOrigin-RevId: a303162a54798b554fcb2e9e2b372e1cf9f49f39
## Why
Guardian V2 should not override a managed approval-reviewer policy that excludes
the user reviewer.
## What changed
- Force `features.guardianv2` off when `allowed_approvals_reviewers` does not
include `user`, for both local requirements and cloud config bundles.
- Preserve Guardian V2 when the user reviewer remains allowed or when only
legacy Guardian feature settings are present.
- Return the effective disabled value through `config/read`.
## Testing
Added coverage for cloud requirements and the app-server config RPC.
GitOrigin-RevId: 82b6d0aaf47fbaa58ae349d4e56777cd442f5807
## What changed
- Stop fetching the ChatGPT workspace `enable_plugins` setting.
- Let the effective Codex feature configuration control app and plugin APIs,
plugin-provided skills and hooks, and experimental feature reporting.
GitOrigin-RevId: 46aebf0f07cd47e093e48663e41207cdf9a38c9f
## What changed
- Add optional `guardian_v2` model-message defaults for classifier instructions,
review thresholds, reasoning effort, transcript selection and limits, and
action and compaction token limits.
- Apply those defaults when Guardian v2 samples a tool call, while preserving
explicit `[features.guardianv2]` settings over catalog values.
- Preserve the new catalog configuration when applying model overrides.
## Testing
- Cover model-catalog serialization and model override behavior.
- Verify that sampling uses catalog defaults while retaining local overrides.
GitOrigin-RevId: 4ae9ec235c647acbca05a20b7c4b87a4e1331161
## What changed
- Add `[skills].max_context_tokens` to override the token budget used to render the available-skills catalog.
- Require a positive value and cap configured budgets at 10,000 tokens.
- Preserve the existing default of 2% of the model context window when the option is unset.
## Testing
- Cover configuration parsing, override behavior, the 10,000-token cap, and catalog rendering within the configured budget.
GitOrigin-RevId: f29ddcb57fc2d800c0006d03e1c33cbe3ab6272d
## Why
App-server request deserialization otherwise ignores unknown fields, so clients using the removed `permissionProfile` field could have their requested permission settings silently ignored.
## What changed
- Reject `permissionProfile` with an invalid-params error on `thread/start`, `thread/resume`, `thread/fork`, and `turn/start`.
- Direct clients to select a named profile through `permissions` instead.
- Continue accepting unrelated unknown fields for forward compatibility.
## Testing
- Cover rejection of the obsolete field on all four affected methods and verify that the connection remains usable.
- Cover successful `thread/start` requests that combine named `permissions` with an unknown field.
GitOrigin-RevId: a63764fb899bc5f212d60617dc32e911bde8073e
## What changed
- Report available space for `CODEX_HOME` and the active worktree, warning below 5 GiB and failing below 1 GiB.
- On Windows, report whether the active Git worktree is on a trusted Dev Drive and provide remediation when it is not.
- Run attached doctor reports against the conversation workspace, including workspaces recovered from persisted thread metadata, while keeping the subprocess anchored in `CODEX_HOME` so deleted workspaces do not prevent it from starting.
## Testing
- Cover disk thresholds, measurement failures, missing paths, conversation workspace selection, command construction, Windows volume detection, and human-readable output.
GitOrigin-RevId: 0a99f9d278717e7d19936ffc504984b3a0958c25
## What changed
- Discover synchronous `mcp_tool` hook handlers and invoke their configured MCP server and tool through a supplied executor.
- Expand nested hook-event placeholders in MCP tool inputs while preserving JSON types, and process tool output through the existing hook output contract.
- Represent hook details as handler-specific metadata in `hooks/list`, including MCP server and tool fields, and show those details in the TUI hooks browser.
- Skip unsupported `SessionEnd` MCP hooks and runtimes without MCP invocation support with startup warnings.
## Testing
- Cover argument expansion, missing placeholders, MCP invocation and hook decisions, discovery warnings, `hooks/list` metadata, and TUI rendering.
GitOrigin-RevId: 295b845471fe92bd7ad7cd272fbcd2c3713912e0
## What changed
- Rebuild hook runtimes for loaded sessions when effective plugins change or a marketplace upgrade installs new plugin content.
- Refresh plugin-related caches and MCP runtimes alongside hooks after plugin mutations.
- Preserve each loaded session's current configuration while rebuilding its hooks.
## Testing
- Cover direct plugin upgrades, including subsequent turn and session-end hooks.
- Cover automatic marketplace upgrades for an already loaded session.
GitOrigin-RevId: fef64c68d652f300c7f3d88e81c5017459aa9a18
## What changed
- Recognize `misalignment_policy_violation` errors from response streams and HTTP 400 or 403 responses.
- Preserve the upstream message, use a fallback for blank messages, and treat the error as non-retryable.
- Expose `misalignmentPolicyViolation` through the app-server protocol and generated schemas so turns fail with a typed terminal error.
## Testing
- Cover streamed and HTTP policy violations, fallback messages, retry behavior, and app-server turn completion.
GitOrigin-RevId: fd3485bf0be7bfe3d51c078bbc36a081692fd57f
## What changed
- Allow `features.guardianv2` to remain a boolean toggle or specify classifier instructions, the review threshold, reasoning effort, and action and instruction token limits.
- Add transcript controls for included sources, per-entry and total token budgets, and the number of recent non-user entries.
- Validate configured ranges and relationships, expose them in the generated config schema, and apply the resolved settings throughout Guardian v2 classification and approval review.
## Testing
- Cover boolean compatibility, configuration parsing and boundaries, config-manager rejection, and the resulting classifier request and approval decision.
GitOrigin-RevId: dc018b53b782e2d6b4d6a795cca4945130a71678
## What changed
- Add model-catalog messages for root and subagent roles, explicit delegation, and delegation hints.
- Resolve role instructions in config, catalog, then bundled-default order, while preserving empty values as an explicit way to suppress fallback text.
- Refresh catalog-provided role and mode instructions when the model changes, and give full-history forks the selected child model's subagent role without retaining the parent's role guidance.
- Keep existing config overrides and reasoning-effort behavior, including proactive delegation for ultra reasoning effort.
## Testing
- Cover message deserialization and preservation through model overrides.
- Cover precedence, empty overrides, model switches, resumed sessions, and full-history subagent forks.
GitOrigin-RevId: 4625cf7c6a5490176adddfaa0fb99100707daea9
