Drain the unit-shard reds the 2026-08-23 merge wave left on
release/v3.8.50, each discriminated as stale-test (contract moved
intentionally, test aligned) vs real bug (fixed in code/messages):
1. check-deps 6A.8 allowlist — #11224 added @testing-library/dom and
@testing-library/user-event to package.json without the gate
allowlist. Both are legitimate: @testing-library/dom is a required
peer of @testing-library/react v16, and user-event is the official
companion for UI tests. Fix: allowlist entries with a justification
note referencing #11224/#9985.
2. search-route 400-vs-fallback — #11097 intentionally changed the
zero-credential /v1/search contract: instead of returning 400 it
promotes the fallback-only duckduckgo-free provider so out-of-the-box
search works. The test pinned the OLD 400 contract. Fix (contract
alignment): the test now pins the new fallback contract — 200,
provider duckduckgo-free, DuckDuckGo lite endpoint called, results
parsed from lite HTML.
3. codex catalog token limits (4 named reds + 2 sibling sweeps) —
#11179 raised GPT_5_6_CODEX_CAPABILITIES from the 272K pricing tier
to the real usable 872K window (live evidence: 390K served past
272K with HTTP 200) and updated codex-gpt56-catalog.test.ts but
missed the sibling pins. Stale tests aligned: models-catalog-combo-
metadata (max_input_tokens now clamps to min(872000, 500000 override)
= 500000), vscode-token-routes x3 (872000), and two more found in the
sibling sweep: vscode-token-routes-gpt56 and provider-models-route-
codex (conservative merge semantics unchanged: pinned 872000 < live
999999 still wins).
4. CLI catalog counts (3 reds) — #11166 added prime-agent (agent
category) without the cardinality pins: EXPECTED_AGENT_COUNT 8->9,
total 34->35, D15 agent list + prime-agent, cli-tools-schema id list.
Also added the missing English/Vietnamese cliTools descriptions for
prime-agent (cli-catalog-display-contract) and corrected the stale
CLI-TOOLS.md agent count (8->9).
5. setup-qwen container guard — since #10057 the container guard exits 2
on ephemeral runtimes; the two tests exercising the merge/write path
were environment-sensitive (red on container devboxes). Fix: pass
allowContainerWrite so the tests are hermetic everywhere; the guard
keeps its own dedicated coverage.
6. i18n health verdict namespace (real bug, fixed in messages) — #11224
added the verdict/diagnostics strings to the `sidebar` namespace but
health/page.tsx reads them via useTranslations("health"), so the page
rendered raw keys in every locale and the "direct translation calls
have English messages" gate went red. Fix: keys moved sidebar->health
in en.json + vi.json (the only locales that had them), plus
health.healthSubtitle added. The sidebar never referenced them
(verified: no usage), and sidebar.healthSubtitle (its real sidebar
key) is untouched.
7. i18n pt-BR drift (22 keys) — the 08-23 wave (#11224/#11228/#11215/
#11204/#11195) added English keys never translated: common.batch*,
endpoint.*, cliCommon.concept.acp.warning, resilienceConnections.*,
plus the moved health.* keys and the prime-agent cliTools
description. Fix: pt-BR translations added — 0 missing keys vs en;
vi strict parity re-verified (0 missing, 0 extra).
Validation: every touched test file RED->GREEN individually
(node --import tsx/esm --test), typecheck:core clean, docs-counts-sync
soft-pass, cli-i18n gate PASS, 8/8 unit shards re-run on the branch.
Refs #9985
Merged after conflict resolution: the 5 conflicting test files were the base-red drains that #11201 already landed on the tip — kept the tip versions; the feature content is untouched. Validated on the combined batch board + this branch: codex-app-server + codex-gpt56-catalog 25/25, typecheck:core clean, docs-counts green (351 providers), provider-consistency 268/351/0. The opt-in codex-app-server transport (JSON-RPC-over-WS, turn/completed-awaited close, Responses SSE bridge) leaves the default codex path untouched. Thank you @arminanton — a 3.4k-line transport with the docs wave and tests to match!
Merged after conflict resolution (validated on the combined batch board + this branch): component integrated with #10489's health-race semantics (stale-check invalidation, 3-state badge, correct useCallback deps — your validation gate and tutorial are preserved on top); the two pre-gate tests updated to validate-search-before-enable (contract propagation, commented); the docs/superpowers planning files were dropped — project rule keeps planning artifacts out of docs/ (they live in the private _tasks/ repo). Base was mistakenly main; retargeted. qdrant-config-card 7/7 + qdrant-routes integration 18/18. Thank you @rafacpti23 — the pre-enable real-search gate closes a real misconfiguration footgun!
Merged after conflict resolution (validated on the combined batch board + this branch): stale drift files (package.json/package-lock/.gitignore) kept at tip; the two modals merged additively — AWS SigV4 fields coexist with the chatgpt-web-codex tunnel fields and the #11156 Enter-handler mirror (vitest 2/2 re-run). file-size gate green with the dated AddApiKeyModal 1173 entry (owner-authorized). aws-polly modal + provider-validation-specialty 127/127. Base was mistakenly main; retargeted to release/v3.8.50. Credentials stay in the protected field; nothing logged. Thank you @rafacpti23!
Merged after conflict resolution onto the post-#10961 tip (verified no clobber of today's plaintext-wins work — the resolver functions were appended and the chatCore call-site swapped; a first --theirs attempt was caught reverting #10961 and redone hunk-by-hunk). resolveIncompatibleReasoningAction now defaults single-target incompatible reasoning to drop while combos keep their explicit strategy, with the x-omniroute-reasoning-fallback header override. 21/21 reasoning suites green, typecheck clean. Fixes#10959. Thank you @adevwithpurpose!
Validated on the combined batch board: gates clean, typecheck clean, focused tests green.
Exactly one Market id rewritten at the createTask seam (google-imagen/nano-banana-2 → nano-banana-2); every other namespaced id forwards byte-identical — the contract is stated and tested precisely. Fixes#11225. Thank you @xiaoyaner0201!
Validated on the combined batch board over tip 0b41259f: static gates clean, typecheck:core clean, 430+ focused tests green across 5 groups.
--tray returns after readiness and survives terminal close, with tray-mode autostart on macOS/Windows/Linux while headless Linux keeps the systemd user service. tray-detached + autostart suites green. Closes#11229. Thank you @tuandinh0801!
Validated on the combined batch board over tip 0b41259f: static gates clean, typecheck:core clean, 430+ focused tests green across 5 groups.
postbuild's esbuild spawn now resolves cross-platform (no more ENOENT after a successful Next compile on Windows). build-tool-runner-win-shim suite green. Thank you @aliyosufi — first contribution, welcome!
Validated on the combined batch board over tip 0b41259f: static gates clean (changelog, file-size 160 frozen, complexity 2628<=2774, cognitive 1187<=1223, dead-code 408<=416, docs-counts green at 351 providers, provider-consistency 268/351/0), typecheck:core clean, 430+ focused tests green across 5 groups.
muse-spark's all-reasoning empty-answer payloads (41 failures in 2h captured live) now floor the output budget so the model can actually emit content — no more empty-content 502 churn. Thank you @linhdmn!
Validated on the combined batch board over tip 0b41259f: static gates clean (changelog, file-size 160 frozen, complexity 2628<=2774, cognitive 1187<=1223, dead-code 408<=416, docs-counts green at 351 providers, provider-consistency 268/351/0), typecheck:core clean, 430+ focused tests green across 5 groups.
GLM-family upstreams reject message arrays with no user turn (400 [1214], verified live 2026-08-23); the synthetic user turn keeps Claude Code sessions on opencode-go alive. Thank you @linhdmn!
Validated on the combined batch board over tip 0b41259f: static gates clean (changelog, file-size 160 frozen, complexity 2628<=2774, cognitive 1187<=1223, dead-code 408<=416, docs-counts green at 351 providers, provider-consistency 268/351/0), typecheck:core clean, 430+ focused tests green across 5 groups.
max_context_window now wins over the pricing-tier context_window in Codex catalog parsing — context-aware fallback stops demoting codex behind smaller targets. Live evidence (390K served past 272K) plus the live-shape regression test. Thank you @excessivechaos!
Validated on the combined batch board over tip 8a42aeeb: static gates clean (changelog, file-size 159 frozen, complexity 2621<=2774, cognitive 1181<=1223, dead-code 408<=416), typecheck:core clean, 107 focused tests green.
Combo precedence preserved when a requested name matches an existing combo or combo/* prefix, and hidden/disabled models are skipped during alias resolution (wildcard + mapped). model-alias-seed-fallback green. Related to #10124. Thank you @SCys!
Validated on the combined batch board over tip 8a42aeeb: static gates clean (changelog, file-size 159 frozen, complexity 2621<=2774, cognitive 1181<=1223, dead-code 408<=416), typecheck:core clean, 107 focused tests green.
This drains the remaining #9985 tail — the v2 dual-write assertions (guide-settings/t40), the zai→z-ai stale id, the hackclub leftovers, and the #11162 cli-combo models (#11203). Note: guide-settings also trips this devbox's container guard (/.dockerenv present), an environment artifact unrelated to CI. Base is green again. Thank you @jonlwheat2-gif!
Validated on the combined batch board (batch-page static test green) + this branch: i18n suites 16/16 with Vietnamese translations of the batch header/step strings added here. Stable outcome header with the 3-step flow; the collapsible concept card stays as advanced detail. Thank you @ignamiranda!
Validated on the combined batch board (health-page static test green, new testing-library deps installed for the component test) + this branch: i18n suites 16/16 with Vietnamese translations of the verdict/diagnostics strings added here. Plain-language verdict leads; advanced diagnostics collapse behind a toggle. Thank you @ignamiranda!
Validated on the combined batch board (resilience-connections static test green) + this branch: i18n suites 16/16 with Vietnamese translations of the reassurance/legend strings added here. Plain-language reassurance + three-state legend lead the page; the technical table stays as advanced detail. Thank you @ignamiranda!
Validated on the combined batch board (CliConceptCard vitest 9/9 — the ACP warning never leaks onto Code/Agent cards) + this branch: i18n suites 16/16 with the Vietnamese translation of the new acp warning added here. ACP now reads as optional/advanced before its mechanics. Thank you @ignamiranda!
Validated on the combined batch board: gates + typecheck clean, i18n suites 16/16. Pre-merge: the vi.json request-flow strings arrived in English — translated to Vietnamese on the branch (vi is the locale that requires real translations, not markers). Purpose-first API-key orientation with the request-path visual, controls unchanged. Part of #11167. Thank you @ignamiranda!
Validated on the combined batch board + this branch: oauth-400-recovery + quota-connection-recovery 22/22; file-size gate green with the test/route.ts 1215 frozen entry (dated annotation for the +190 rebuilt-probe lines, owner-authorized). Unknown expiry + refresh token now means proactive refresh before probing, a hard 400 gets exactly one refresh+retry with fresh-token assertion, and the recovery tick clears stale error labels — the four dead-for-weeks antigravity connections from the production report would have self-healed. TDD with bug-injection proof on each leg. Thank you @HouMinXi!
The #11040 merge changed decidePreSpawn() to opt-in adoption
(GHSA-wg9p-6m2g-4v27: a 2xx on the probed port cannot prove the listener
is this service), but the two integration tests in ServiceSupervisor.test.ts
still asserted adopt-by-default, leaving the release tip red:
- #6205: probeBeforeSpawn adopts a healthy existing instance (no spawn)
- adopted service resolves and records the real pid of the process holding the port
Both now set OMNIROUTE_ADOPT_EXISTING_SERVICE=1 (restored in finally) so the
adoption path they exercise stays covered under the new contract. Adds a new
default-deny case asserting that without the flag a healthy listener is NOT
adopted and the error names the opt-in escape hatch.
Verified against base tip 6cd4d38e21: file is 8/8 green,
ninerouter-embed-port-6205.test.ts still 9/9, eslint + prettier clean.
Co-authored-by: Xiangzhe <bakryun0718@proton.me>
Validated on the combined batch board + this branch: synced-inventory + auth neighbor suites 16/16; file-size gate green with the auth.ts 3337 frozen entry (dated annotation for the +77 inventory-filter lines at the credential-selection chokepoint, owner-authorized). Chat routing now pins to the connection whose synced inventory actually advertises the model — no more spurious model-not-found on multi-host self-hosted setups. Scoping call (not building on the still-open #11088) was the right one. Fixes#11089. Thank you @pacocartones and @yourspraveen for the precise report!
Validated on the combined batch board over tip c92bd40b: static gates clean (changelog, file-size 158 frozen, complexity 2626<=2774, cognitive 1183<=1223, dead-code 409<=416), typecheck:core clean, 70 focused tests green (PR suites 49/49 + auth/combo neighbors 21/21).
Keyless custom-compatible connections stay in auto/* pools — the credential filter now recognizes a registry-free keyless endpoint instead of dropping the connection before pool construction. Fixes#11180. Thank you @pacocartones!
Validated on the combined batch board over tip c92bd40b: static gates clean (changelog, file-size 158 frozen, complexity 2626<=2774, cognitive 1183<=1223, dead-code 409<=416), typecheck:core clean, 70 focused tests green (PR suites 49/49 + auth/combo neighbors 21/21).
Five g4f-* entries re-flagged hasFree:false with the live-probed 402 evidence (proof-of-work wall, member key still works); the two dissenting providers deliberately untouched, matching the chutes/aimlapi/yi precedent. Fixes#10071. Thank you @pacocartones and @chirag127 for the capture!
Validated on the combined batch board over tip c92bd40b: static gates clean (changelog, file-size 158 frozen, complexity 2626<=2774, cognitive 1183<=1223, dead-code 409<=416), typecheck:core clean, 70 focused tests green (PR suites 49/49 + auth/combo neighbors 21/21).
Operator-configured positive minTime floor now survives the plenty-of-headroom relaxation (resolveMinTime instead of a hard 0). Fixes#9763. Thank you @pacocartones!
Validated on the combined batch board + this branch: perf-a-b-c-d + account-fallback-service 93/93, gates + typecheck clean. Owner approved the full bundle including item A (async proxy-log batching, 1s/100-item flush with an unref'd timer — reviewed the implementation: flush helper exists for shutdown wiring, buffered logs are the accepted tradeoff). B (lazy modals), C (O(1) alias maps), D (pre-compiled regex — this is also the entire content of #11187, being closed as subsumed) ride along. Conflict with the tip was only stale provider-count docs. Thank you @rqzbeh!
Validated on the combined batch board + this branch: antigravity-dynamic-session-id + proxy-fetch-dns-retry green; file-size gate green with the proxyFetch 1244 frozen entry (dated annotation for the +5 retry-classification lines, owner-authorized). Static per-account sessionId unpinning ends the concurrent-turn 429s and EmptyStreamError drops on the Hermes→Antigravity path; EAI_AGAIN/ENOTFOUND/ETIMEDOUT now classified retryable. Conflict with the tip was only stale provider-count docs. Resolves the remaining #10443 root causes. Thank you @rqzbeh!
Validated on the combined batch board + this branch: login-11143 green. Full document navigation after login guarantees the auth_token cookie is committed before any RSC prefetch fires — no more 307 back to /login. Conflict with the tip was only stale provider-count docs. Fixes#11143. Thank you @rqzbeh!
Validated on the combined batch board + this branch: dashboard-ux-operability green. Unmapped custom quota keys now render as title-cased labels instead of raw snake_case. Conflict with the tip was only stale provider-count docs. Thank you @rqzbeh!
Validated on the combined batch board (gates + typecheck clean) and this branch: security-route-guard-tiers green. Regression coverage for the Hard Rule #15/#17 contract — Tier 1 process-spawning prefixes (/api/services/, /api/mcp/, /api/cli-tools/runtime/) must stay LOCAL_ONLY before any auth check. Conflict with the tip was only stale provider-count docs. Thank you @rqzbeh!
Merged after conflict triage: the six base-red repair files (vi.json, opencode.ts JSDoc, context-manager test, the three webhook dispatcher tests, the uncloseai orphan-test rename) were already drained on the tip by today's #11130/#11157/#11160/#11113 — those hunks resolved to the tip shape. What lands is the production-fix set: GLM transport-aware Anthropic headers, Claude Code-compatible model-listing rejection, combo live-test single-probe, zero-cost Auto-Combo interval normalization, recovery-clearing union handling, LLMLingua real-path compare, macOS netstat PID discovery, AI Horde R2 strict public-host validation. Sweep of every touched test file: 243/243 green; typecheck + file-size clean. (guide-settings-route's 4 reds reproduce on the pure tip — pre-existing drift from #11079, not from here.) Thank you @backryun!
Merged after count reconciliation: the branch's regenerated docs claimed 57 free forever / 157 migrations from its older base; gate-verified values on the current tip are 56 free forever (Logfare carries a Free badge via gateways.ts freeNote but has no freeModelCatalog per-model entries, so the live-code counter stays at 56) and 159 migrations — the README/SVGs now match the check:docs-counts output exactly. provider-consistency OK at 267 registry / 349 canonical. logfare-registry 4/4, icon + KNOWN_PNGS + discovery-set membership all verified present. Closes#10644. Thank you @jonlwheat2-gif!
Validated on the combined batch board + this branch: 231/231 across chatcore-translation-paths, reasoning-cache, strip-reasoning-blobs, and both Responses translator suites. Pre-merge: propagated the #11110/#11129 summary:[] defaults into five assertions here (each commented with its PR) — without it this branch red against the tip, and as a bonus the merge drains the 4 reasoning reds that were live on the tip from those merges. Plaintext now wins over a coexisting opaque companion; opaque-only drops cleanly for plaintext targets; combos keep explicit Skip. Fixes#10949 and #10959. Thank you @jackjinke!
Merged after conflict resolution in modelMetadataRegistry.ts: the tip's effortTiers chain (declared efforts → declared tiers → undefined-if-thinking-declared → codex extension) now carries this PR's GLM guard as the final-fallback override — GLM-family models without a provider-declared contract get the authoritative empty tier list instead of generic OpenAI tiers. GLM/ZCode suites 40/40 on the resolved branch. Closes#10962. Thank you @xz-dev!
Validated on the combined batch board + this branch: ccr-non-mcp-full-prompt-loss + ccr-retrieval-ramp 20/20, file-size gate green with the ccr/index listing (1024, dated annotation — owner-authorized). The callerSupportsCcrRetrieve gate now skips the whole engine for callers whose tools[] cannot reach omniroute_ccr_retrieve — no more 15KB prompt arriving upstream as 112 tokens. Production-measured root cause, textbook TDD. Thank you @HouMinXi!
Validated on the combined batch board + this branch alone: chat-body-admission + authz/pipeline 65/65, file-size gate green with a dated frozen entry (chatBodyAdmission 1005→1009 — the +4 lease/drain wiring lines, owner-authorized rebaseline). trackRequest was never called, so SIGTERM waitForDrain saw zero in-flight and killed live SSE; leases now hold the drain counter for the stream's lifetime, and the 503 carries Retry-After. Closes#11015. Thank you @RaviTharuma!
Compaction-V2 output now counts as real model output (no synthetic response.failed after response.completed), the Codex SSE filter handles CRLF framing, and terminal detection runs before scan-state bounding. 88/88 stream/readiness suites on the board. Thank you @jackjinke!
SSE comment lines (OpenRouter keep-alives) and leading whitespace no longer fail the combo quality gate's JSON fallback. First contribution — clean minimal fix with test. Thank you @asorourx, welcome aboard!
- New CheaperInferenceSponsorBanner on the dashboard home, same size/shape as
KimiSponsorBanner, no version gate (durable partnership). Uses the
cheaperinference ProviderIcon and the brand green (#31f889) with the dark
ink CTA (contrast, per colors.ts token).
- CTA points at https://link.omniroute.online/cheaper — the branded short
link — so clicks land in our Kutt metrics.
- VscodeCopilotBanner CTA now points at https://link.omniroute.online/vsx
instead of the raw Marketplace URL, for the same reason.
- i18n strings in en + pt (en is the namespace-level fallback for the other
41 locales).
- Tests: new cheaperInferenceSponsorBanner.test.tsx (render, CTA href, dismiss
persistence); vscodeCopilotBanner.test.tsx updated to the new CTA URL.
Co-authored-by: Xiangzhe <bakryun0718@proton.me>
* feat(api): structured ?format=json for the self-service usage endpoint
GET /api/usage/om-usage already let any key read its own usage — personal
daily/weekly USD limits and the provider quota snapshot — but only as
text/plain, which a UI cannot parse safely. OmniCopilot issue #8 asks exactly
for this surface.
Adds ?format=json, returning the ApiKeyUsageLimitStatus + UsageSnapshot the
text is rendered from. Text and JSON share the same collectors
(collectUsageSnapshots, getApiKeyUsageLimitStatus), so the two can never
disagree about a number. The response is a discriminated union: a key without
allowUsageCommand (403) or an invalid key (401) returns
{ allowed:false, error:{message} }, distinct from allowed:true with empty
sections — the state a panel must render as "nothing learned yet", not a
refusal. Text form unchanged; without ?format the contract is untouched.
The endpoint was previously missing from API_REFERENCE.md; it now has a
section documenting both forms, the allowUsageCommand gate, and the
self-service auth model (caller's own key, not requireManagementAuth).
Regression guards in tests/unit/usage-command-json-format.test.ts (4 tests:
json shape, text default preserved, structured 403, sanitized 401 with no
stack trace). Existing internal-usage-command suite still 12/12.
* chore(changelog): correct the fragment to the real PR number (#11190)
* feat(api): return every connection's snapshot under providers[] in om-usage json
Closes#11191. buildUsageCommandJson picked a single snapshot via selectUsageSnapshot, so a panel could only ever show one provider. The collector already had them all — the single-pick is a presentation choice for a terminal. The JSON form now also returns the full UsageSnapshot[] alongside the selected provider, so a UI can render Codex / Claude / OpenCode side by side. The text form is untouched.
---------
Co-authored-by: Xiangzhe <bakryun0718@proton.me>
* feat(api): structured ?format=json for the self-service usage endpoint
GET /api/usage/om-usage already let any key read its own usage — personal
daily/weekly USD limits and the provider quota snapshot — but only as
text/plain, which a UI cannot parse safely. OmniCopilot issue #8 asks exactly
for this surface.
Adds ?format=json, returning the ApiKeyUsageLimitStatus + UsageSnapshot the
text is rendered from. Text and JSON share the same collectors
(collectUsageSnapshots, getApiKeyUsageLimitStatus), so the two can never
disagree about a number. The response is a discriminated union: a key without
allowUsageCommand (403) or an invalid key (401) returns
{ allowed:false, error:{message} }, distinct from allowed:true with empty
sections — the state a panel must render as "nothing learned yet", not a
refusal. Text form unchanged; without ?format the contract is untouched.
The endpoint was previously missing from API_REFERENCE.md; it now has a
section documenting both forms, the allowUsageCommand gate, and the
self-service auth model (caller's own key, not requireManagementAuth).
Regression guards in tests/unit/usage-command-json-format.test.ts (4 tests:
json shape, text default preserved, structured 403, sanitized 401 with no
stack trace). Existing internal-usage-command suite still 12/12.
* chore(changelog): correct the fragment to the real PR number (#11190)
---------
Co-authored-by: Xiangzhe <bakryun0718@proton.me>
Merged after sibling #11151 landed: streamRecovery.ts auto-merged byte-identical to the validated combined board; the test-file conflict (both PRs added suites at the same anchor) resolved keeping all 11 tests — #11151's four clean-stop cases plus this PR's three threshold cases, with the PR's updated partial-tail fixture for the pre-existing overlap test. Full chain green: 32/32 (wiring + continuation + toolcall regression). The documented 8-char overlap threshold ends the silent mid-word gluing. Thank you @maxmad64bis!
Merged after conflict resolution against the tip's #11109 (per-call tool_call tracking): scanOpenAiSseText keeps the per-call finish_reason special-case AND gains reasoningText + literal finishReason; canContinue uses the in-flight predicate with the new reasoning-only-clean-stop escape. One integration fix on the branch: the PR's hallucinatedEmptyStop referenced emittedToolCall, which #11109 had renamed — the branch now tracks emittedSawToolCall at the emitted level (any tool_call delta, complete or not), preserving the PR's don't-recover-after-tool-calls intent. Chain suites green: stream-continuation-wiring + stream-continuation + stream-recovery-toolcall 29/29. Thank you @maxmad64bis!
Validated on the combined batch board: purify-system-first suite 4/4, typecheck clean. Pre-merge: file-size baseline gained a frozen entry for contextManager.ts at 1001 (+1, this PR's merge-into-leading-system branch) with a dated annotation — the gate caps unlisted files at 1000. Producer side of the live-confirmed TokenRouter 400 class: no internal path emits a mid-array system message anymore. Thank you @ggdayup — the call-log evidence made this airtight!
Validated on the combined batch board over tip 92ef3c71: static gates clean (changelog, file-size, complexity 2624<=2774, cognitive 1182<=1223, dead-code 411<=416), typecheck:core clean, focused tests green.
Empty-envelope 400 (no error field, empty content, finish_reason null) now rotates/retries instead of propagating as success; 200/streaming path never buffered; real-error 400s untouched. account-rotation + new rotation suite 34/34 on the board. Thank you @maxmad64bis!
Validated on the combined batch board over tip 92ef3c71: static gates clean (changelog, file-size, complexity 2624<=2774, cognitive 1182<=1223, dead-code 411<=416), typecheck:core clean, focused tests green.
Combo without models is now refused at the schema boundary (API 400), the CLI flags it, and openapi.yaml matches the real contract (phantom props removed). combo-* suites + cli-combo-create-models green on the board. Closes#10954. Thank you @maxmad64bis!
