## This PR
Remote plugin analytics cannot rely only on the in-memory
installed-plugin snapshot because that snapshot is refreshed
asynchronously after startup. This PR persists the authoritative backend
identity alongside each cached remote plugin bundle so later consumers
can resolve it without a network request.
### Behavior
- Store Codex-owned remote installation metadata in an atomic
`.codex-remote-plugin-install.json` sidecar under the plugin cache root.
- Use a versioned, snake_case schema:
```json
{
"schema_version": 1,
"remote_plugin_id": "plugins~Plugin_..."
}
```
- Write the metadata during remote bundle installation.
- Backfill it when bundle sync finds an already-current cached bundle.
- Clear it when a generic/local install replaces the cache.
- Let existing uninstall and stale-cache removal delete it with the
plugin cache root.
- Reject unsupported schema versions rather than silently misreading
future formats.
This PR does not change analytics serialization or event behavior.
### Review surface
The implementation is limited to four `codex-core-plugins` files:
- `store.rs`: owns the versioned sidecar read/write/remove lifecycle.
- `remote_bundle.rs`: persists the backend ID after a remote bundle
install.
- `remote/remote_installed_plugin_sync.rs`: backfills metadata for an
already-current cached bundle.
- Tests cover the storage lifecycle and both remote write paths.
## Testing / Validation
### Automated
- `just test -p codex-core-plugins` (268 tests passed)
- `just fix -p codex-core-plugins` passes with one pre-existing
`large_enum_variant` warning in `manifest.rs`.
- Coverage verifies the exact filename and JSON schema, identity
replacement, local reinstall clearing, uninstall cleanup, remote bundle
installation, unsupported schema rejection, and installed-plugin sync
backfill.
### Live manual validation
Validated the production app-server RPC path with an isolated temporary
`CODEX_HOME` and the PR-built Codex binary. The app-server communicated
over stdio and did not bind a port.
Test plugin: `plugins~Plugin_b80dd84519148191a409cde181c9b3d6`
(`build-macos-apps@openai-curated-remote`).
1. Confirmed `plugin/read` initially reported the plugin uninstalled.
2. Installed it through `plugin/install` and confirmed version `0.1.4`
was cached.
3. Verified
`$CODEX_HOME/plugins/cache/openai-curated-remote/build-macos-apps/.codex-remote-plugin-install.json`
was created beside the `0.1.4/` bundle directory with mode `0600` and
the expected contents:
```json
{
"schema_version": 1,
"remote_plugin_id": "plugins~Plugin_b80dd84519148191a409cde181c9b3d6"
}
```
4. Deleted only the sidecar, restarted the app-server, and confirmed
installed-plugin startup sync recreated it with the same contents.
5. Uninstalled through `plugin/uninstall`, confirmed `plugin/read`
returned `installed: false`, and verified the local plugin cache root
was removed.
6. Restored the account's original uninstalled state and removed the
isolated home and copied credentials.
## Split Overview
```text
main
├── #27093 Debug analytics capture merged
│ └── #27099 Non-mutating plugin smoke merged
│ └── #27100 Remote install/uninstall smoke merged
└── #27102 Plugin telemetry metadata refactor merged
└── #27669 Persist remote plugin identity ← this PR
Next:
└── Final PR: add explicit local and remote IDs to plugin analytics
```
This PR is based directly on `main`; prerequisite
[#27102](https://github.com/openai/codex/pull/27102) has merged. The
original combined [#26281](https://github.com/openai/codex/pull/26281)
remains the aggregate reference until the final replacement PR is
published.
## 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`
Move plugin tar.gz packing and unpacking into a shared core-plugins
archive helper so uploaded bundles are decoded through the same tar
handling used for installs. This removes duplicate archive logic,
supports GNU long-name entries on extraction, and keeps size, traversal,
link, and entry-type checks in one place.
- Adds an explicit vertical marketplace kind for plugin/list that
fail-open fetches collection=vertical only when full remote plugins are
disabled.
- Renames the global remote marketplace/cache identity to
openai-curated-remote and materializes remote installs with backend
release versions and app manifests.
Adds plugin/share/checkout to turn a shared remote plugin into a local
working copy under ~/plugins/<name>.
Registers the copy in the managed personal marketplace and records the
remote-to-local mapping for later share/save flows.
---------
Co-authored-by: Codex <noreply@openai.com>