- Replace ApplyCodexCanonicalIdentity with CodexCanonicalAuthIdentity /
ApplyCodexCanonicalAuthIdentity: the credential face (auth.openai.com
token exchange / refresh / PAT whoami) now sends the originator +
canonical User-Agent pair and no version header, matching codex-rs
default_headers(); the version gate (#3901) only exists on the
/backend-api/codex inference face. whoami keeps its original header
shape (originator + UA) with the canonical UA source.
- Token exchange and refresh send the full pair instead of a bare UA,
eliminating the half-identity (UA without originator) combination no
real client ever emits.
- Codex models manifest: the Version header now follows the client's
own client_version when it is valid and >= the upstream floor (same
source as the query param, restoring the pre-refactor consistency),
falling back to the canonical version otherwise; the query param
keeps its verbatim passthrough contract.
- Drop the now-unreferenced openAICodexProbeVersion constant and its
vacuous consistency assertions; probes resolve their version through
resolveCodexOutboundIdentity at runtime.
Token exchange, PAT whoami, models, probes, and pre-writes now follow
the same UA/version chain as Codex inference instead of hardcoded
codex-cli/0.91.0 or compile-time constants.
The Codex models manifest path returned upstream 401s straight to the
client without feeding them into the account state machinery. A revoked
or invalidated OAuth account therefore stayed active and schedulable,
kept being selected for subsequent /models requests, and produced
repeated 502s until an admin ran a manual connection test (#4544).
- Route ChatGPT-backend manifest 401s through the shared upstream-error
handling: token cache invalidation, temp-unschedulable cooldown for
refreshable OAuth accounts, permanent disable for
token_revoked/token_invalidated, plus the runtime scheduling block.
- Treat ChatGPT-backend manifest 401s as failover-eligible so the
current /models request can switch to a healthy account instead of
returning 502. Custom API key upstream 401s keep the existing
no-failover, no-disable behavior since their /models auth is not
authoritative for the account.
- Skip Agent Identity accounts: their 401s can be task-scoped and have
a dedicated recovery flow.
- Attach the selected account to the ops error-log context so /models
failures record the account_id.
Fixes#4544
Co-authored-by: Cursor <cursoragent@cursor.com>
Custom API key upstreams that only implement the standard OpenAI
GET /v1/models endpoint return {"object":"list","data":[{"id":...}]},
which the Codex models manifest validation rejected with
"missing top-level models array", surfacing HTTP 502 to Codex clients.
Convert the standard list envelope into the Codex manifest shape
({"models":[{"slug":...}]}) for API key upstreams before validation.
Bodies that already carry a top-level models field, are not the
standard list shape, or yield no usable model IDs are left unchanged
so existing validation and account failover behavior is preserved.
Fixes#4490
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
yaxin