## Summary
- preserve the original HTTP status when a remote plugin bundle download
returns a non-success response
- retain at most 8 KiB of the error response body and annotate
truncation or body-read failures
- add regression coverage for an oversized error response
## Root cause
The non-success response path reused the normal size-limited body
reader. When an error response exceeded 8 KiB, that reader returned
`DownloadTooLarge` before the code constructed `DownloadStatus`, masking
the upstream HTTP status and response context.
## Impact
Remote plugin installation failures now retain the actionable upstream
HTTP status without allowing unbounded error bodies into logs.
## Validation
- `just test -p codex-app-server
plugin_install_preserves_status_when_remote_bundle_error_body_is_too_large`
- `just fmt`
- `git diff --check`
Summary
- Stop treating Codex Apps MCP tools with
`_meta._codex_apps.synthetic_link: true` as evidence that a connector is
accessible in `app/list`.
- Preserve synthetic tools in the agent-facing MCP connector set so they
remain available for install/auth flows.
- Keep the app-list accessibility cache limited to connectors backed by
at least one non-synthetic tool.
- Add focused regression coverage for both sides of the boundary.
Validation
- `just fmt`
- `just test -p codex-core
synthetic_links_are_exposed_to_the_agent_but_not_accessible_in_app_list`
- `git diff --check`
- A crate-wide `just test -p codex-core` run completed with 2,699
passing and 51 unrelated local sandbox/state failures, primarily state
DB migration races (`UNIQUE constraint failed:
_sqlx_migrations.version`).
## Stack
This is PR 2 of the simplified HAI single-run-task stack:
- [#19047](https://github.com/openai/codex/pull/19047) Agent Identity
assertion and task-registration primitives, including the shared
run-task helper used by existing Agent Identity JWT auth.
- [#19049](https://github.com/openai/codex/pull/19049)
Disabled-by-default ChatGPT auth opt-in that provisions/reuses persisted
Agent Identity runtime auth and its single run task.
- [#19051](https://github.com/openai/codex/pull/19051) Run-scoped
provider auth that uses one backend-owned task id for first-party
inference and compaction requests.
[#19054](https://github.com/openai/codex/pull/19054) collapsed out of
the active stack because the simplified design no longer needs a
separate background/control-plane task helper.
## Summary
This PR adds the disabled-by-default path for normal ChatGPT-login Codex
sessions to obtain Agent Identity runtime auth through the Codex
backend. Existing Agent Identity JWT startup mode remains a separate
path and does not require the feature flag.
What changed:
- adds the experimental `use_agent_identity` feature flag and config
schema entry
- adds an explicit `AgentIdentityAuthPolicy` so call sites choose
`JwtOnly` or `ChatGptAuth` instead of passing a bare boolean
- stores standalone Agent Identity JWT credentials separately from
backend-registered Agent Identity records
- persists the registered Agent Identity record, private key, and single
run task id in `auth.json` so process restarts reuse the same identity
- derives the agent/task registration base URL from ChatGPT/Codex auth
config while keeping JWT JWKS lookup separate
- provisions and caches ChatGPT-derived Agent Identity runtime auth when
`use_agent_identity` is enabled
- reuses the shared run-task registration helper from PR1 rather than
adding a second task-registration path
This PR intentionally does not switch model inference over to
`AgentAssertion` auth. The provider-auth integration lands in the next
PR.
## Testing
- `just test -p codex-login`
## Summary
[@milanglacier reported in
#28653](https://github.com/openai/codex/issues/28653) that the active
mention candidate is hard to distinguish. I suspect [@binbjz’s #28500
report](https://github.com/openai/codex/issues/28500) _(where arrow-key
navigation appeared not to work)_ may describe the same presentation
problem: the selection may have been changing, but the UI was not
showing the active row clearly in their terminal. This PR makes two
small changes to the selection indication behavior:
- Reserve a two-character gutter and mark the active candidate with `> `
for color-agnostic indicator coverage.
- Apply the shared theme-aware accent to the entire selected row for
extra emphasis.
- Update the existing popup snapshot.
Reverse-video styling was considered, but avoided it because it is
overly dependent on the user’s terminal palette.
<img width="2046" height="482" alt="image"
src="https://github.com/user-attachments/assets/b5eb62c3-fd24-4c09-906e-7bd66913b5c6"
/>
## Testing
- `just test -p codex-tui default_unified_mention_popup_snapshot`
- `just clippy -p codex-tui`
- `just fmt`
- Compiled `codex-cli` and tested the unified mentions picker in the
terminal.
## Summary
- remove the duplicated originator-specific connector ID denylists
- stop filtering connector directory/accessibility results and
live/cached Codex Apps MCP tools by hardcoded connector ID
- remove the now-unused `codex-login` dependency from
`codex-utils-plugins`
- update regression coverage so formerly blocked connector IDs are
preserved
## Why
The client-side policy was duplicated across crates, used opaque IDs
without ownership or expiry information, and could drift between app
listing and MCP tool behavior. Server-provided visibility,
authorization, plugin discoverability, accessibility, enabled-state
handling, and consequential-tool approval templates remain unchanged.
## Validation
- `just fmt`
- `just bazel-lock-update`
- `just bazel-lock-check`
- `git diff --check`
- confirmed the final diff contains no hardcoded denylist symbols
A targeted `codex-mcp` test build spent an unusually long time in local
compilation/linking. Its first attempt exposed a test-only `PartialEq`
assertion issue, which was corrected. A follow-up non-linking `cargo
check -p codex-mcp --tests` was still running when this draft was
opened; CI should provide the complete Rust validation.
## Why
`on-request` approval policy text is currently tuned for user-reviewed
approvals. For auto-reviewed productivity runs, likely sandbox blocks
should be escalated earlier so commands that need remote services,
authentication, or other out-of-sandbox access do not first fail or hang
inside the sandbox.
## What changed
- Adds a separate `on_request_auto_review.md` permissions prompt
selected for `AskForApproval::OnRequest` with
`ApprovalsReviewer::AutoReview`.
- Keeps the normal user-reviewed `on-request` wording unchanged.
- Makes the `When to request escalation` bullets more explicit about
likely sandbox blocks, network access, remote
auth/cluster/cloud/database access, out-of-sandbox environment access,
git operations that may write lock files, and short-timeout reruns after
likely sandbox-blocked attempts.
- Omits approved command prefix and `prefix_rule` guidance for the
auto-review on-request prompt.
- Adds prompt tests covering the auto-review path, normal on-request
wording, and inline permission request behavior.
## What
Server should request:
```
{
"id": 42,
"method": "currentTime/read",
"params": {
"threadId": "11111111-1111-1111-1111-aaaaafdc2c11"
}
}
```
Client should respond with something like:
```rust
{
"id": 42,
"result": {
"currentTimeAt": 1781717655
}
}
```
## Why
Sessions configured with `clock_source = "external"` need a
thread-specific external time source before inference. The system clock
remains the default production provider.
## Validation
- `cargo test -p codex-app-server-protocol`
- `cargo test -p codex-app-server --test all
current_time_read_round_trip_adds_reminder_to_model_input`
- `cargo test -p codex-app-server
first_attestation_capable_connection_for_thread_only_uses_thread_subscribers`
- `cargo test -p codex-analytics`
- `just fix -p codex-app-server-protocol`
- `just fix -p codex-app-server`
Stacked on #28824.
## Why
Allows the model to edit files that are hosted on a different OS than
where app-server is running.
## What
* Use `PathUri` for apply_patch-internal data structures
* Limit `PathUri` -> `AbsolutePathBuf` conversion to cases where the
inferred path convention matches the host OS, allows requiring valid
paths to pass to perms check
* Adds `PathConvention::path_segments()` for iterating over path
segments regardless of OS
* Handle cross-platform relative paths in path filename parsing for
sniffing a shell
* Ensure we can apply patches in the wine e2e test
## Why
`built_tools` runs for every sampling request, and local plugin
discovery was repeatedly rereading plugin manifests, skills, MCP
configuration, and app declarations to build the same tool-suggest
metadata.
That source-derived metadata is stable until the existing plugin manager
reloads its cache. Runtime eligibility still needs to reflect the
current install, disable, policy, app-overlap, and authentication state.
## What changed
- Add a bounded, in-memory tool-suggest metadata cache owned by
`PluginsManager`.
- Key cached metadata by plugin identity and source, while applying
authentication routing each time the metadata is projected.
- Invalidate the metadata alongside the existing loaded-plugin cache,
including its normal configuration, marketplace refresh, and
remote-installed-plugin invalidation paths.
- Guard against an in-flight load repopulating stale metadata after
invalidation.
- Keep marketplace membership and all runtime eligibility filtering live
rather than introducing a separate catalog or revision model.
## Impact
Repeated sampling requests reuse already-loaded plugin capability
metadata while retaining the existing plugin-manager lifecycle as the
single freshness boundary.
## Validation
- `just test -p codex-core-plugins` — 252 passed
- Added focused coverage for cache invalidation and authentication
reprojection.
Stacked on #28822.
## Summary
- add a host-injectable current-time provider with a built-in system
implementation
- record UTC developer reminders in history immediately before due model
requests
- keep cadence state per session and force a refresh after compaction
This does NOT include the app server client <-> server clock logic. This
PR is only for the reminder message & system clock that will be used in
prod.
## Testing
- `just test -p codex-core varlatency_`
- `just clippy -p codex-core -p codex-app-server -p codex-mcp-server -p
codex-thread-manager-sample`
- `just fmt`
Make `ListItemsParams::turn_id` optional so callers can list persisted
items across an entire thread or narrow the result to one turn. This
aligns the thread-store API and documentation with thread-wide item
listing while preserving the optional turn-filter behavior for
implementations.
## Stack
Depends on #28746. This PR implements shared rollout-budget accounting
and model-visible reminders using the configuration defined in #28746.
# Description / Main changes to Core:
`AgentControl` will now be the area where "rollout level" features &
accounting will have to live. It is incorrectly named for this
responsibility, but I think it can hold all the necessary shared state &
features (rollout token budget, mutliple thread interruption
responsibilitym etc)
In this PR, we have one "token ledger" that each thread will subtract
from when sampling. The "charge" will occur when response.completed() is
done and the calculation will be done on the responses api usage
carrier. The calculation will weigh sampling and pre-fill tokens as
specified.
Every time the budget crosses the configured reminder threshold, a
developer message is appended before the thread's next request
This remaining budget will _always_ be restated/reminded after a
compaction event.
Expiration and fan-out interruption will be in the stacked follow-up
(and also live in Agent Control).
## Reminders
"You have weighted {session_tokens_left} tokens left in the shared
session token budget."
The first request in each thread context receives the current remainder.
Later reminders are emitted after aggregate weighted usage crosses a
configured interval. If several intervals are crossed before a thread
sends another request, Core inserts one reminder with the latest
remainder.
Compaction response usage is charged before the next context starts. The
next reminder is appended after the compaction summary, leaving the
initial context content stable.
## Tests
Integration coverage verifies:
- weighted output and non-cached input accounting
- initial and periodic reminders
- shared accounting between a root and sub-agent
- post-compaction remainder and message placement
Local checks:
- `just fmt`
- `just test -p codex-core rollout_budget`
- `git diff --check`
The full workspace test suite was not run locally.
Winston Howes