The eligibility gate in grokChatResponsesBridgeEligibility rejected any
structured content (arrays), including standard OpenAI image_url parts.
This forced image-bearing requests to fall back to raw Chat Completions
forwarding, where non-Composer models have no image bridge — silently
dropping the images or causing upstream errors.
Changes:
- Allow content arrays containing only text and image_url parts to pass
eligibility, so ChatCompletionsToResponses can convert them to
input_image parts that Grok vision models natively support.
- Force image-bearing requests to use Responses even when no prompt
cache identity is available, since the raw path cannot forward images
for non-Composer models.
- Add grokChatStructuredContentBridgeable helper with conservative
validation: unknown part types (e.g. input_audio) still fall back.
- Update tests: image_url content is now bridgeable; add cases for
text+image, text-only arrays, unknown parts, and empty arrays.
Three tests covering the CC→Responses→Anthropic finalize path:
- TestStreamingParallelToolUseNoGhostDelta: full end-to-end with two
parallel tool_calls, asserts every content_block_delta targets a
started block
- TestStreamingParallelToolUseSecondToolPackedArgsDone: focused test
where tool 1 streams deltas and tool 2 has packed .done args
- TestStreamingThreeParallelToolsAllPackedDone: three tools all with
packed .done, the most extreme case
All three fail on unfixed code (ghost deltas on wrong indices) and
pass after the fix.
resToAnthHandleFuncArgsDone used state.ContentBlockIndex directly
instead of looking up from OutputIndexToBlockIdx like
resToAnthHandleFuncArgsDelta does. When multiple tool_calls arrive
in parallel and arguments come as a packed .done (no prior delta),
the second+ tool would emit content_block_delta on an index that
was never content_block_start'ed, causing Claude Code to report
"Content block not found".
Fix: resolve block index from OutputIndexToBlockIdx, and skip the
delta if the block is already closed or the index doesn't match
the current open block.
Closes#4193
Mirror the Admin UI Server-Timing opt-in for user-facing pages so
authenticated callers can inspect total/app/db/redis/deps metrics on
session, profile, keys, usage, payment, and related user APIs.
- Collect when X-User-UI-Request=1 or path is on the user allowlist
- Emit for non-admin only on allowlisted paths (header is not auth)
- Exclude payment public/webhook surfaces
- Mark matching SPA requests and allow the new CORS request header
ChatGPT OAuth may normalize explicit image size controls to auto while returning smaller raster bytes. Decode final image headers so Images API metadata and tier billing reflect the actual output for both streaming and non-streaming OAuth responses.
Enrich openai.upstream_failover_switching structured logs with proxy
identity fields (proxy_id, proxy_name, proxy_host, proxy_port) so
operators can see which outbound proxy failed when switching accounts.
Matches the existing gateway.forward_failed / websocket_proxy_failed
logging pattern.
Add proxy_id/proxy_name/proxy_host/proxy_port fields to openai.websocket_proxy_failed so operators can identify which proxy failed without extra lookups. Matches the existing gateway.forward_failed logging pattern.
lenzhang