## Why
When no healthy pooled WebSocket is available, classification waits for a new connection to open and can stall on its handshake.
## What changed
- Use HTTP streaming when no healthy idle WebSocket is ready, and replenish the pool in the background with a five-minute cooldown after connection timeouts.
- Share concurrency limits and the sampling retry budget across both transports, and bound the wait for HTTP response headers.
- Cancel superseded requests while awaiting response headers and stop SSE polling when the consumer closes.
## Testing
Add coverage for HTTP fallback and recovery after cooldown, shared transport capacity, stalled response headers, and cancellation before headers or during body draining. Update sampler and extension tests to cover fallback after socket expiry, authentication changes, and transient failures.
GitOrigin-RevId: 0b23ccc1bfb2dfdbc8d2791d097706cd4dd44f39
## What changed
Replace `features.guardian_thread_context` with `features.guardianv2.thread_context` and update the configuration schema. The setting controls thread-owned context for synchronous and asynchronous Guardian, defaults to `false`, and remains independent of `features.guardianv2.enabled`.
## Testing
Update configuration tests to cover the nested setting, profile overrides, and enabling thread context while Guardian v2 is disabled. Migrate Guardian approval, history, and async scorer tests to the new configuration key.
GitOrigin-RevId: 54a91555eb68001e0adedc8a07bdbc5ea2273f9b
## Why
Classification metrics report failures without distinguishing their causes, and WebSocket connection attempts lack a dedicated duration metric.
## What changed
- Add `failure_reason` tags to classification counters and duration histograms, covering setup, sampler, and output-processing errors.
- Record `codex.guardian_v2.connection.duration_ms` for WebSocket connection attempts with endpoint, outcome, and failure reason tags.
- Map sampler errors to fixed, low-cardinality categories instead of using error messages that may contain server responses or credentials.
GitOrigin-RevId: bb366be92af2f605643ea7cd527678fa8dbfe53f
## What changed
Capture the ID from `response.created` and pass it as `parent_response_id` in Guardian review and classifier request metadata. Clear the current response ID before sampling retries so tool reviews cannot inherit a failed response's ID.
Request Guardian credits with `guardian_credits_requested` on eligible parent requests. Remove the ticket protocol, transport attachment, and ticket-specific body redaction. Keep ordinary app-server client `parent_response_id` values inside `x-codex-turn-metadata` rather than promoting them to Guardian request metadata.
## Testing
Update coverage for HTTP fallback, WebSocket review reuse, missing response IDs, classifier transport retries, and code-mode yield/resume attribution. Extend app-server tests to verify client metadata placement over HTTP and WebSocket.
GitOrigin-RevId: c1665e56382ecec8d260fc2ca0ecd5e20b0b2391
## Why
Guardian reviews must not lose user authorization constraints or reuse an
unreadable or incompatible parent checkpoint after compaction.
## What changed
- Retain bounded excerpts of oversized root user messages across compaction,
resume, and rollback, and recover excerpts from legacy Guardian history when
available.
- Require thread-owned Guardian review sessions and asynchronous scoring to
reuse only non-empty checkpoints produced by a compatible review model.
- Fail closed instead of reviewing without the required checkpoint when reuse
is disabled, compatibility is unknown, or checkpoint content is unusable.
## Testing
Expanded retained-context, review-session, asynchronous-scoring, and app-server
coverage for oversized instructions, legacy recovery, model incompatibility,
missing content, resume, rollback, and disabled checkpoint reuse.
GitOrigin-RevId: f30d837197e0d838e656a632109f490c38208f5e
## Why
Guardian reviews need the original user instructions even when compaction or
transcript selection removes them from the active conversation window.
## What changed
- Capture complete user messages in host-owned retained context and include them
as ordered authorization evidence alongside verified answers.
- Omit oversized instructions atomically and emit an explicit incomplete-evidence
notice instead of exposing a potentially misleading partial permission.
- Mark user messages inherited by forked agents so they remain model-visible
without becoming child-local authorization.
## Testing
- Cover retained instructions across compaction, resume, rollback, and agent
forks, including oversized evidence and legacy context behavior.
GitOrigin-RevId: 97122509d818c90d2f87c6a1b29c99c05ad0316e
## Why
Guardian reviews for delegated workers need the current root instructions and verified answers even after the parent context is compacted. Approvals must also become stale when that root authorization changes.
## What changed
- Build bounded root review evidence from retained context, preserving source order and answer scope while prioritizing user instructions over optional assistant context.
- Recover retained instructions from Guardian history after compaction and mark authorization incomplete when required instructions or answers are unavailable.
- Version root authorization in synchronous and reusable review sessions so an allow result is cancelled when its evidence changes.
- Strip parent-only Guardian approvals when forking worker history in retained-context mode.
## Testing
- Cover retained and legacy context modes, oversized evidence, message limits, parent compaction, and authorization changes during review.
GitOrigin-RevId: 658219b7cee08f2752adcea9966268fd21727976
## Why
Approval routing must remain available even when the async scorer does not start successfully.
## What changed
- Register a dedicated Guardian approval reviewer before the existing async scorer contributor.
- Reuse eligible cached low-risk evidence, including the initial computer-use allowance, without waiting for a fresh score.
- Route requests to the user when automatic review does not apply, and fall back to a synchronous assessment with the applicable review reason when cached evidence cannot be used.
GitOrigin-RevId: 956427040456bed4c497da952f0bed7f22e93fa6
## What changed
- Request and parse server-issued Guardian tickets for eligible Codex backend responses.
- Scope each ticket to the response that produced a Guardian review or classifier request, including HTTP and WebSocket retries, without adding it to model-visible or persisted context.
- Validate ticket shape, reserve its metadata keys, redact it from debug and request-body logging, and attach it only at the Guardian transport boundary.
## Testing
- Cover ticket parsing, endpoint and authentication routing, retry scoping, classifier retries, and redaction for compressed and uncompressed requests.
GitOrigin-RevId: 6219dd15c9f19ed3387de516aac1b8e7c9cdb0e3
## What changed
- Add optional per-model Guardian modes for computer use, shell, code mode,
file changes, MCP, network, and permission requests.
- Apply disabled, synchronous, or adaptive review by action category while
preserving legacy configuration when model policy is absent.
- Bind cached risk scores to the active model policy, thread settings, and
environment selections so outdated scores cannot approve later actions.
- Keep unknown review modes on the synchronous path and ignore unknown policy
fields for forward compatibility.
## Testing
- Cover policy serialization, legacy fallback, scoped tool classification,
disabled categories, and score invalidation after policy changes.
GitOrigin-RevId: f334a5f4fffb198da66cde3a400233e0df650516
## Why
Guardian can reuse an opaque parent compaction only when the checkpoint's
recorded producer hash matches the scoring model. Missing or incompatible
provenance must not allow an asynchronous score or cached approval to omit
compacted context.
## What changed
- Record the producing model's compatibility hash on compaction history items
and expose the latest checkpoint hash through conversation snapshots.
- In thread-owned context mode, fail closed and require synchronous review when
checkpoint reuse is enabled but the latest checkpoint is incompatible or has
unknown provenance.
- Reject incompatible checkpoints in the sampler while preserving the legacy
context behavior.
## Testing
Add coverage for local, remote, resumed, compacted, and rolled-back histories,
including matching, mismatched, missing, and empty compatibility hashes.
GitOrigin-RevId: 1ce959cb276edc602fd7dfa442133c7fe5e53857
## Why
Guardian authorization reviews need host-verified `request_user_input` answers to
remain aligned with thread history across compaction, resume, and rollback.
## What changed
- Record verified question-and-answer pairs in retained thread context when
`GuardianThreadContext` is enabled, and source both local and delegated Guardian
review evidence from that context.
- Preserve complete answer records within the evidence budget. Mark authorization
context incomplete when records are unavailable or oversized, and defer cached
fast approvals in that case.
- Keep the existing runtime-only answer path for threads that do not enable the
thread-owned context.
## Testing
- Cover answer retention through compaction and resume, removal after rollback,
source-call eviction, oversized answers, delegated review evidence, and legacy
behavior.
GitOrigin-RevId: 01f6f4541515434a0d00fdde318ff59f2f8bd2eb
## Why
Computer-use-only Guardian scoring should follow the active model's REPL
auto-review requirement, including when the model changes within a live thread.
## What changed
- Run computer-use scoring and fast approval decisions only when the active
model sets `node_repl_auto_review_required`.
- Invalidate prior or in-flight scores when a model switch skips scoring, so
switching back to a reviewed model cannot revive a stale decision.
## Testing
- Cover model switches for both `node_repl` and `cua_repl` MCP servers.
- Verify skipped scoring and stale-score rejection across requirement changes.
GitOrigin-RevId: 46aec4d017bea8f135b435bcd769b87369b8ce95
## What changed
- Skip Guardian prewarming and asynchronous scoring when `approvalsReviewer` is
`"user"`, including when the reviewer changes during an active turn.
- Automatically accept ordinary `node_repl.js` execution confirmations in this
mode while continuing to surface sensitive-action checks and requests for user
input.
- Cover transitions between User approval, automatic review, and Full Access in
the app-server integration tests.
GitOrigin-RevId: 599c8ebb672728b9bf3d64c34377ddec230325f8
## Why
Full Access already combines `approvalPolicy: "never"` with unrestricted
permissions, so confirmation-only actions do not require a model review.
## What changed
- Detect Full Access consistently across the thread and every selected
environment. Pending, failed, or restricted environments are not treated as
Full Access.
- Approve confirmation-only Guardian and MCP requests without synchronous
review, sampler prewarming, or background scoring. Cancellation, explicit
denials, and forms that require user input keep their existing behavior.
- Re-evaluate the active permission state on each turn so an existing thread
can enter or leave Full Access safely.
## Testing
Added coverage for switching approval modes, strict sensitive MCP
confirmations, failed and pending environments, and suppression of Guardian
requests and background-scoring connections.
GitOrigin-RevId: 089ab4296dde473b8e33ab8324be79c5446c46f6
## What changed
- Emit `codex_guardian_v2_classification` events with the outcome, risk
level, duration, model, and thread attribution.
- Emit `codex_guardian_v2_fast_decision` events when Guardian V2 approves an
action without a full review.
- Add `guardian_v2_enabled` to turn analytics, accounting for review scope
and model requirements.
## Testing
- Extend the Guardian V2 app-server coverage to verify event payloads,
attribution, enablement state, and scoped event emission.
GitOrigin-RevId: 0805975f8e8f9d954aa1058ea8c60545a090ae74
## What changed
- Add `SectionRegistry::compose` to group collected authorization fragments and transcript entries while preserving fragment boundaries and registration order.
- Use the shared composed context in the core Guardian prompt and Guardian V2 synchronous and asynchronous reviewers.
- Keep transcript rendering, retention, and delta handling with each caller while removing duplicated section grouping and authorization rendering.
## Testing
- Cover composition for synchronous and asynchronous targets, including root conversation role handling, trusted user answers, transcript entries, empty context, and contributor failures.
- Verify the synchronous reviewer preserves authorization fragment boundaries in prompt items.
GitOrigin-RevId: 9268343631fd6417bb05a3c0abce883559a37685
## What changed
- Add typed context sections for root-conversation evidence, trusted user answers, and conversation transcripts to `codex-guardian-context`.
- Use the shared section registry when building core Guardian prompts and asynchronous Guardian V2 scoring context.
- Preserve source-role labeling while delivering authorization evidence as user-role context, and fail closed when context collection fails.
## Testing
- Cover shared section ordering and role preservation for synchronous and asynchronous targets.
- Verify trusted user answers appear exactly once as user-role input in Guardian V2 approval flows.
GitOrigin-RevId: 1d5d793ffbf166077411a66e85e039596907fb7e
## What changed
- Add a shared `select_user_messages` helper in `guardian-context` that always
anchors the first user message and fills the remaining token budget from
newest to oldest.
- Use the helper for both core Guardian prompt rendering and the Guardian V2
async scorer so they apply the same retention policy.
## Testing
- Cover empty and single-message transcripts, over-budget anchors, and
newest-first selection across multiple token budgets.
GitOrigin-RevId: 7db246013875263ceb5806d2a6a19b4e2a3db1c4
## Why
Composer drafts include attachments, mention targets, and deferred paste payloads in addition to visible text. Vim undo needs to restore that complete state as a single edit.
## What changed
- Add bounded, draft-level Vim undo history, with `u` as the configurable default binding in normal mode.
- Group complete Vim commands and insert sessions into undo steps, including direct composer changes such as pastes and attachments.
- Preserve undo, repeat, and search state when a reverse-history preview is canceled, and start fresh history when another prompt is accepted.
## Testing
- Cover grouped edits, custom bindings, history and search interactions, attachments, and large paste payloads.
GitOrigin-RevId: 12ecdb3c34a2d66f5d856aa2f82dc15bd91b230b
## Why
Guardian reviews need the original conversation evidence even after the parent context has been compacted, while rollback must still remove evidence from reverted turns.
## What changed
- Build synchronous and asynchronous Guardian transcripts from the retained review-history snapshot.
- Use the shared Guardian transcript collector for consistent entry formatting, tool attribution, and per-entry truncation while preserving the existing transcript retention budgets.
## Testing
- Add app-server coverage for retaining user and tool evidence after compaction and discarding it after rollback.
- Extend transcript tests for standalone tool outputs, shell calls, attribution, truncation, and retention limits.
GitOrigin-RevId: a18b1176f14a4d006c263aa82d4e593afee66bc3
## Why
Context compaction can replace original conversation items that Guardian still needs to review approval-sensitive actions.
## What changed
- Retain a bounded, chronological review history independently of the model's compacted history.
- Keep separate limits for user messages and other transcript items so tool traffic cannot evict user instructions.
- Use the retained evidence for synchronous and asynchronous Guardian transcripts, while resetting it after rollback or history reconstruction.
## Testing
- Cover retention through compaction and eviction, reset behavior after rollback, independent size limits, and asynchronous transcript construction.
GitOrigin-RevId: c5851e992820504fc18de8cfec7f6f9f1b69f316
## Why
The first REPL execution should proceed while its initial asynchronous Guardian
classification is still pending.
## What changed
- Fast-approve the first `js` execution from a Node REPL-backed server while
continuing its asynchronous classification.
- Track `js` executions separately so setup and reset tools do not consume the
first-execution allowance.
- Apply the normal Guardian review policy to subsequent executions.
## Testing
Add coverage for browser and computer-use startup, reset, and module-directory
setup sequences, verifying that only the first `js` execution skips the wait.
GitOrigin-RevId: 7297b35411a6317bcf9e7058c08c6db3e3310ac8
## Why
Compaction and host-injected context can rewrite the model-visible conversation
without changing what the user authorized. Treating those updates as authorization
changes prevents Guardian from reusing an otherwise valid review.
## What changed
- Track a host-owned user-message revision separately from the conversation history
generation.
- Advance the revision for genuine user messages and history resets, while preserving
it across compaction and internal context injection.
- Use message content-kind metadata to distinguish host context from user input,
conservatively treating unknown or incomplete metadata as user authorization.
## Testing
Added coverage that cached Guardian authorization survives compaction and internal
context, but is invalidated by user input and rollback.
GitOrigin-RevId: c7960fa182d1686042c23764d2abc58acbc4b882
## What changed
- Generate a UUIDv7 turn ID for each Guardian classification and preserve it across retries.
- Record the owning turn as `parent_turn_id` and propagate its trusted `root_turn_id` when known, including through the tool lifecycle extension API.
- Omit ambiguous or unknown root lineage and keep classification identities distinct when reusing Guardian sessions and WebSocket connections.
## Testing
- Cover classification metadata across retries, connection reuse, concurrent samples, auth refresh, and consecutive owning turns.
GitOrigin-RevId: 78757f2ad031844e4b545802f634c678a9ee2298
## What changed
- Assign type-prefixed IDs to Guardian classifier input items before sending the request, preserving existing IDs and reusing generated IDs across WebSocket retries.
- Add a prefixed ID to the memory phase-one user message.
## Testing
- Verify retried Guardian requests contain the same unique, prefixed item IDs.
- Verify the memory phase-one request includes a prefixed user-message ID.
GitOrigin-RevId: e01da49d9a661b6bfd2088f091a3ddf69d601e40
## Why
After switching a thread to a model that requires automatic review, a
standard-scope approval could reuse a cached low-risk score for an action that
skipped classification. This allowed the action to bypass the required full
review.
## What changed
Check the thread's current model requirements before making a fast Guardian
decision. Defer required models to the full review path instead of approving
from cached scoring state.
## Testing
Add coverage for switching to a required model and reviewing a sandboxed
command without running another classification.
GitOrigin-RevId: e79e6a5df19c46acd5c4176f522a859793177639
Expand Windows deny-read globs robustly across protected directories while preserving filesystem enforcement. Preserve structured MCP tool and resource errors through app-server responses. Bind cached Guardian classifications to current local and root authorization state so stale scores cannot approve actions.
Add regression coverage for the sandbox resolver, structured protocol errors, and authorization changes.
GitOrigin-RevId: 4b80ed724d869afeca79204222d8465fa99d3a24
## Why
Guardian tests could continue after a WebSocket handshake but before the
connection entered the idle pool. The shared request waiter could also miss a
notification delivered between checking the request log and registering its
wait.
## What changed
- Wait for Guardian prewarming to populate the idle connection pool instead of
treating completed handshakes as sufficient.
- Use two initial Guardian connections in tests while retaining eight in
non-test builds.
- Register for request-log notifications before inspecting the log to avoid a
lost wakeup.
GitOrigin-RevId: 88f6a22c5401e03c24e6e114f2563fc641bfef80
## What changed
- Lower the default `max_tool_call_lag` from three tool calls to two, causing
older async risk scores to fall back to strict review sooner.
- Update the async scorer integration test to verify score expiration using the
default lag instead of a test-specific override.
GitOrigin-RevId: a07cae3634428a1e64745674eced92fb770f441a
## Why
Guardian classification must not proceed after silently dropping a parent
compaction that cannot fit within its configured size limit.
## What changed
- Distinguish an absent or unusable parent compaction from serialization and
size-limit failures.
- Record a fail-closed score and failed classification when the latest encrypted
parent compaction cannot be serialized or exceeds the complete-item byte
budget.
- Preserve omission of compactions with missing or empty encrypted content
without falling back to older context.
## Testing
Cover compactions at the exact byte limit, one byte over it, and oversized
passthrough metadata.
GitOrigin-RevId: 8e607c88f10003cdfab273963bc73c848b09c821
## What changed
- Move bounded planned-action JSON rendering from the Guardian V2 extension implementation into a dedicated `async_scorer::action` module.
- Keep the structural size-limit tests alongside the extracted implementation.
GitOrigin-RevId: 9292b164588ba0119b4c5ff81056bf7416352d69
## What changed
- Store per-turn trusted skill paths directly in a `BTreeSet` instead of a
mutex-protected set.
- Mutably record paths and consume the collection when producing the final
ordered path list.
- Strengthen the bounded-deduplication test to verify the exact collected paths.
GitOrigin-RevId: 69e87fc7783738d85ed204f18a3968d0837c3693
## What changed
Represent completed and superseded Guardian V2 classifications with a dedicated
`ClassificationOutcome` enum. Map the typed outcome to the existing metrics
status and emit truncation metrics only for scored classifications.
GitOrigin-RevId: b00d345cb0162ed3fc7f53632630b631f18820e7
## Why
Guardian reviews for delegated workers need to recognize skills explicitly
invoked by the user on the root turn.
## What changed
- Record verified user-owned skill paths as bounded, turn-matched Guardian
evidence.
- Include trusted paths from the current worker and its root snapshot when
building review context.
- Exclude skill trust from later root turns so stale authorization is not
inherited.
## Testing
- Add an app-server lifecycle test covering inheritance of a root-invoked
skill by a delegated worker and its removal on the next root turn.
GitOrigin-RevId: aa28f485edb7a447e51d51de8dc89b959fd63d40
## Why
Plugin MCP trust decisions must describe the exact host-discovered server
registration. Looking up a plugin again by ID can resolve a different root.
## What changed
- Retain the host plugin root in MCP catalog attribution and connection identity.
- Reconnect an MCP server when its attributed plugin root changes.
- Pass the retained root through tool lifecycle attribution and use it directly
when building trusted tool context.
## Testing
Add coverage for catalog identity, connection reconciliation, lifecycle
attribution, and rejecting a different root associated with the same plugin ID.
GitOrigin-RevId: bc92743dd40ab44065a07c3ea972b4956ef8351f
## What changed
Define a shared 30-second timeout for Guardian V2 async tests and use it
for classifier requests, score updates, and authentication refresh waits.
GitOrigin-RevId: fa0e63e5e4c2b9ba0e3a09f0c8758886a867e546
## What changed
- Record classified risk levels in `codex.guardian_v2.classification.risk`.
- Record fast approval outcomes and their reasons in
`codex.guardian_v2.fast_decision`, including low-risk approvals and deferred
decisions caused by missing, stale, failed, out-of-scope, or elevated-risk
scores.
- Cover the new metric labels across approval and failure paths.
GitOrigin-RevId: e180054e0b3796e479a706157dd9ea7c9f03c001
## Why
Guardian treated all skill instructions as untrusted, so it could not use the
invocation of a user-owned skill as authorization evidence.
## What changed
- Record explicit and implicit skill invocations through extension contributors.
- Send Guardian a bounded, deduplicated list of canonical skill paths only when
they resolve under the user's Codex or `.agents` skill directories.
- Keep repository skills and symlinks that escape trusted roots untrusted, and
send only verified paths rather than skill contents to the classifier.
- Avoid recording host skill prompts that were superseded by core skill
injection.
## Testing
- Added unit coverage for trusted roots, symlink escapes, deduplication, and
size limits.
- Added integration coverage showing that Guardian trusts invoked user skills
while rejecting a forged repository skill.
GitOrigin-RevId: 1cc0be230f7e6649110201c23c3de8f26447ff36
## Why
Opening Guardian's initial WebSocket connections can be delayed, but thread startup and resume do not need to wait for those connections.
## What changed
- Install the Guardian sampler and related thread state before opening its initial connections.
- Prewarm the sampler's WebSocket pool in a background task while retaining the existing on-demand connection behavior.
## Testing
- Verify extension startup returns before a delayed WebSocket handshake completes, then warms the full initial connection pool.
- Verify resuming a thread likewise returns before Guardian's delayed handshake completes.
GitOrigin-RevId: 58c91cf045b223f917c67d7e8dc82eac529db4ce
## What changed
- Add a bounded developer context fragment identifying the MCP server or connector and the user-owned configuration that declared it.
- Emit the fragment only when the effective entry matches the user configuration or an active plugin declaration resolves inside the Codex home directory.
- Keep tool descriptions, outputs, and unrelated tools untrusted, and reject unsupported sources or paths that escape through symlinks.
## Testing
- Cover user-configured servers and connectors, plugin-provided capabilities, token truncation, symlink escapes, and app-server request integration.
GitOrigin-RevId: 0bfe2a2f3a48334d1d5faad692b5d36452febb68
## What changed
- Add optional `McpToolContext` metadata to `ToolStartInput`, exposing the
model-visible MCP tool details and its source classification without exposing
the executable client.
- Classify MCP calls as connectors, configured servers, plugin servers,
executor-selected plugins, or other registrations based on the prepared call.
- Prepare each MCP call before notifying tool lifecycle contributors and reuse
that same call for execution so the callback describes the call that runs.
## Testing
- Cover host-owned connector calls and extension-owned Apps server calls,
including their distinct provenance and executed tool names.
GitOrigin-RevId: efd23f511b1045ffdd96349d621ad62365569b2b
## Why
Models that require automatic review previously skipped Guardian v2 risk scoring
entirely, even when Guardian was limited to computer-use tools. That scope cannot
use a low-risk result to approve unrelated tools, so the blanket skip is
unnecessary.
## What changed
- Retain Guardian v2 risk scoring for required-review models in
`ComputerUseOnly` scope while continuing to skip it in standard scope.
- Preserve strict automatic approval review for Node REPL-backed tools, including
when classification fails.
## Testing
Added coverage for low-risk, high-risk, and invalid classifications across the
Node REPL and computer-use REPL paths, plus an unrelated MCP tool.
GitOrigin-RevId: ee38fabf82e196df0ae13b4216b5892be9b799cf
## What changed
- Add a synchronous reviewer prompt builder that combines root authorization,
trusted user answers, bounded conversation history, parent environment and
permission context, retained REPL evidence, and the proposed action.
- Select text or image REPL evidence from Guardian feature and transcript
settings while respecting the reviewer model's supported modalities and
shared image limits.
- Render network access requests with trigger-specific guidance and bound
approval reasons and nested action strings before including them.
## Testing
- Add a prompt test covering root authorization, untrusted transcript framing,
retry reasons, denied-read restrictions, and action serialization.
GitOrigin-RevId: d1cf886c2e30f7abbf94cce977cef14439ef3f2e
## What changed
- Classify `response.failed` events with the `rate_limit_exceeded` code as a distinct retryable error while preserving any parsed retry delay.
- Expose the error as `rateLimitExceeded` through the core protocol and app-server schemas after stream retries are exhausted.
- Preserve the upstream message for TUI display while keeping it out of telemetry summaries.
## Testing
- Cover SSE classification, retry metadata, protocol conversion and serialization, exhausted stream retries, telemetry redaction, and TUI rendering.
GitOrigin-RevId: 02dab4d3477dcd7653a58c49c4bd38687a616579
## What changed
- Add effective workspace roots to `EnvironmentConfig` and use them when
materializing permission profiles and filesystem context.
- Preserve selection roots for thread-owned configurations while allowing a
ready environment attachment to supply its resolved roots.
- Propagate resolved roots to child environments and validate both command and
`apply_patch` writes in owner-provided secondary workspaces.
GitOrigin-RevId: 1832c168ce1fc37fa67efc2a472998ab4f448c70
## What changed
- Add the `features.guardianv2.persist_scores` configuration option for debugging.
- Default the option to `false`, so Guardian V2 reviewed actions and risk scores are only written to rollout files when explicitly enabled and the session is not ephemeral.
## Testing
- Cover configuration deserialization, default non-persistence, and opt-in persistence for nested code-mode actions.
GitOrigin-RevId: 452af99ef14553d45140340ececc2913389124d0
## What changed
- Add optional `call_id` and `action` fields to `SecurityRiskScore` so a persisted score identifies the tool call and bounded action that produced it.
- Populate the fields after Guardian V2 classifies an action while leaving fail-closed and legacy scores without provenance.
## Testing
- Verify scores preserve action details for direct tool calls and nested code-mode calls.
- Verify rollout serialization retains the new fields.
GitOrigin-RevId: fce69af37f368cecf1d9bce42bfc38a969e969b7
## What changed
- Add the opt-in `features.guardianv2.free_guardian` setting to route eligible
Guardian reviews to `/guardian` and asynchronous classifications to
`/guardian-classifier`.
- Support endpoint selection for both HTTP and WebSocket Responses clients,
including endpoint-aware connection reuse.
- Keep `/responses` for API-key authentication, custom provider URLs,
non-Guardian models, and configurations where the option is disabled.
- Omit routing hints and `service_tier` from requests sent to the dedicated
Guardian endpoints.
## Testing
- Cover route selection across authentication modes, provider URLs, HTTP
fallback, WebSocket review sessions, and classifier sampling.
GitOrigin-RevId: 9c88673c710d009e0239559b9245a4e6c4f4befc
## What changed
- Append accepted Guardian V2 classification results to rollout history for non-ephemeral threads.
- Keep resumed and forked threads from restoring a persisted score into active Guardian state.
## Testing
- Verify that asynchronous scoring records the resulting `SecurityRiskScore` rollout item.
- Seed resume and fork tests with a persisted score and verify that approvals ignore it.
GitOrigin-RevId: 40d63a2ea7e7cf6398402c6aed7d5e5727dc9d68
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