Preserve Chat Completions parallel_tool_calls when converting requests to the Responses API, and map Responses parallel_tool_calls back when falling back to Chat Completions upstreams.
Cover both true and explicit false values so clients can disable parallel tool calls without the field being dropped by omitempty.
Follow-up fixes to #3569 based on code audit:
- Expose server_timezone / server_utc_offset in public settings (and the
__APP_CONFIG__ injection payload) and label every peak-window display
with the server UTC offset, so users don't misread the billing window
as browser-local time
- Unify CreateGroup/UpdateGroup peak-config sanitization via a single
NormalizePeakRateConfig chokepoint: non-subscription groups always get
peak fields cleared; unparseable window strings and negative
multipliers are scrubbed when peak is disabled
- Replace hot-path time.Parse in PeakMultiplierAt with a manual HH:MM
parser (accept set verified byte-for-byte identical to
time.Parse("15:04") by exhaustive fuzzing) and reuse it in validation
- Revert the zero-behavior CalculateCost indirection churn in
billing_service/gateway_service introduced by #3569
- Remove dead GetGroupPlatformMap and the duplicate deref helper in the
admin handler package
- Share frontend peak formatting via utils/peak-rate.ts, unify the ×N
label format, and move hardcoded Chinese tooltips to i18n keys
When converting a Chat Completions stream into Responses events, the first
tool_call delta chunk was copied wholesale into stream state (including
function.arguments), then the same chunk's arguments were accumulated again by
the shared `+=` block. For OpenAI this is harmless because its first tool_call
chunk carries empty arguments, but upstreams that pack id+name+arguments into a
single chunk (e.g. GLM/Zhipu) end up with doubled arguments such as
{"cmd":"ls"}{"cmd":"ls"}. Codex then fails to parse the tool call with
"trailing characters", breaking every tool invocation.
Reset the copied arguments so the shared accumulator counts them exactly once,
keeping the emitted delta and the final done/arguments consistent.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
PR #3016's merge appended a verbatim second copy of four
TestStream_Reasoning* functions into
chatcompletions_responses_stream_lifecycle_test.go, causing
'redeclared in this block' build failures that broke both the
test and golangci-lint CI jobs.
Remove the duplicate block; each test now appears once.
- bump impersonated CLI version 2.1.92 -> 2.1.161; derive User-Agent from
CLICurrentVersion so the two hardcoded copies can no longer drift apart
- fix x-stainless headers to real 2.1.161 values: package-version
0.70.0 -> 0.94.0, runtime-version v24.13.0 -> v24.3.0 (verified against
the installed Bun-compiled binary)
- expand the disguise-path system prompt from a 2-block identity skeleton
to a 3-block layout (billing + identity + tool-agnostic prose), matching
real CC's multi-block shape; cache breakpoint moved to the last static
block. Deliberately excludes # Doing tasks / # Using your tools /
# Executing actions to avoid polluting proxied-client behavior
- stabilize the synthesized metadata.user_id session_id across conversation
turns: derive it from (account + client discriminator + first user
message) instead of a per-turn content/body hash. Sticky-routing
GenerateSessionHash is intentionally left untouched; remove now-dead
hashBodyForSessionSeed
Tests: update the 3-block system assertions in gateway_prompt_test and
gateway_anthropic_apikey_passthrough_test; add a session_id cross-turn
stability test in gateway_oauth_metadata_test.
CHOS1N