v3.8.37

## [3.8.37] — 2026-06-26

### ✨ New Features

- **feat(providers):** add DGrid AI gateway provider — OpenAI-compatible gateway at `api.dgrid.ai/v1` (alias `dgrid`, API-key auth, passthrough models). Free router tier (10 RPM / 100 RPD); a $5 lifetime top-up raises limits to 20 RPM / 1,000 RPD. ([#4931](https://github.com/diegosouzapw/OmniRoute/pull/4931) — thanks @dgridOP)

- **feat(providers):** add Pioneer AI (Fastino Labs) provider — OpenAI-compatible chat completions at `api.pioneer.ai/v1`. Registered with alias `pn`, `X-API-Key` auth, and a catalog of 10 open-tier serverless models (Qwen3, Llama 3.1/3.2, Gemma 3, SmolLM3). Free $75 credits, no credit card required. Gated enterprise models (Claude/GPT/Gemini) require prior fine-tuning on the Pioneer platform and are intentionally excluded from the catalog. ([#4909](https://github.com/diegosouzapw/OmniRoute/pull/4909) — thanks @HikiNarou)

- **feat(providers):** add xAI Grok inbound translators and a thinking patcher — Grok requests are now translated on the inbound path and reasoning is normalized so Grok modes behave consistently across clients. ([#4910](https://github.com/diegosouzapw/OmniRoute/pull/4910) — thanks @mugnimaestra)

- **feat(oauth):** Codex bulk-import endpoint — `POST /api/oauth/codex/import` accepts multiple Codex OAuth credentials in one call for fast multi-account onboarding. ([#4914](https://github.com/diegosouzapw/OmniRoute/pull/4914) — thanks @beaaan)

- **feat(embeddings):** add a `dimensions` override field to embedding combos so an embedding combo can pin the output vector size per target. ([#4913](https://github.com/diegosouzapw/OmniRoute/pull/4913) — thanks @wenzetan)

- **feat(sse):** auto-promote successful combo model — a new opt-in `comboAutoPromoteEnabled` setting reorders a combo's persisted model list so that, when a combo model responds successfully, it is moved to position #1 for future requests. ([#4852](https://github.com/diegosouzapw/OmniRoute/pull/4852) — thanks @arssnndr)

- **feat(sse):** add toggleable tool-source diagnostics — an opt-in switch surfaces where each tool definition originated when debugging tool-routing issues. ([#4856](https://github.com/diegosouzapw/OmniRoute/pull/4856) — thanks @DuyPrX)

- **feat(headroom):** proxy lifecycle management + dashboard UI — start/stop/monitor a Headroom compression proxy from the dashboard, with Docker sidecar support. ([#4649](https://github.com/diegosouzapw/OmniRoute/pull/4649) — thanks @diegosouzapw / @carmelogunsroses)

- **feat(sse):** `x-omniroute-strip-reasoning` request header to drop `reasoning_content` from upstream responses (opt-in, preserving reasoning-aware clients). ([#4678](https://github.com/diegosouzapw/OmniRoute/pull/4678) — thanks @anuragg-saxenaa / @diegosouzapw)

- **feat(cli):** multi-model support for the Factory Droid CLI integration. ([#4682](https://github.com/diegosouzapw/OmniRoute/pull/4682) — thanks @anuragg-saxenaa / @diegosouzapw)

- **feat(sse):** parse Gemini CLI 429 `retryDelay` from the structured `RetryInfo` payload so cooldowns honor the upstream-provided backoff. ([#4738](https://github.com/diegosouzapw/OmniRoute/pull/4738) — thanks @NoxzRCW)

- **feat(sse):** add GPT-4 and GPT-4o mini to the GitHub Copilot provider catalog. ([#4798](https://github.com/diegosouzapw/OmniRoute/pull/4798), [#4797](https://github.com/diegosouzapw/OmniRoute/pull/4797) — thanks @decolua)

- **feat(api):** add the `MiniMax-M3` pricing row (canonical + lowercase alias) so the new MiniMax default model gets accurate per-request cost accounting instead of falling back to a zero/default rate. ([#4814](https://github.com/diegosouzapw/OmniRoute/pull/4814) — thanks @octo-patch)

### 🔧 Bug Fixes

- **fix(sse):** dense, deterministic `response.output` ordering in `response.completed` — items are now sorted by their actual `output_index` (via a recorded-as-emitted accumulator + stable sort) instead of being rebuilt from unordered state dicts; `normalizeOutputIndex` replaces fragile `parseInt` calls for robust index coercion; superseded tool calls (replaced at the same index mid-stream) are excluded from the final output array. ([#4906](https://github.com/diegosouzapw/OmniRoute/pull/4906) — thanks @Marco9113)

- **fix(sse):** normalize Codex custom/freeform tools (`apply_patch`, `type:"custom"` with no `parameters`) to a `{ input: string }` function schema instead of an empty schema — the empty schema made models invoke `apply_patch` with `{}`, breaking the Codex runtime which expects `{ input: string }`. Also maps `custom_tool_call` / `custom_tool_call_output` input items and streams `apply_patch` tool calls via `custom_tool_call_input.delta`/`.done` events. ([#4862](https://github.com/diegosouzapw/OmniRoute/pull/4862) — thanks @nstung463)

- **fix(sse):** preserve the `required` array when translating Draft 2020-12 antigravity tool schemas (e.g. from OpenCode), stripping unsupported JSON Schema meta keywords while keeping mandatory arguments required so the model no longer calls tools without them. ([#4843](https://github.com/diegosouzapw/OmniRoute/pull/4843) — thanks @anuragg-saxenaa)

- **fix(sse):** Kiro tool-schema sanitizer — strip unsupported JSON-Schema keywords (`anyOf`/`$ref`/`if`-`then`, etc.) and hash-truncate tool names >64 chars before dispatch, mapping the streamed tool-call name back for the client, so Kiro no longer rejects tool calls with `400 "Improperly formed request"`. ([#4847](https://github.com/diegosouzapw/OmniRoute/pull/4847) — thanks @smarthomeblack)

- **fix(sse):** make the `anthropic-version` default-guard case-insensitive for `anthropic-compatible-*` providers, so a caller/operator-supplied `Anthropic-Version` (any casing) is no longer clobbered by a second lowercase `anthropic-version: 2023-06-01` header. ([#4823](https://github.com/diegosouzapw/OmniRoute/pull/4823) — thanks @zakirkun)

- **fix(db):** validate HuggingFace API tokens via the `whoami-v2` endpoint as a pure auth probe so fine-grained Inference-Provider tokens (valid even when model/task endpoints reject them) are no longer falsely marked invalid; only 401/403 means an invalid key, other non-OK statuses surface as transient upstream errors. ([#4819](https://github.com/diegosouzapw/OmniRoute/pull/4819) — thanks @Delcado19)

- **fix(sse):** reject the Anthropic-only `[1m]` context-1m suffix in `buildKiroPayload` before it reaches AWS Bedrock — Kiro is Bedrock-backed and cannot honor the beta, so a forwarded `kr/*[1m]` model id was malformed upstream; callers now get a clear error pointing them at a direct-Anthropic provider for 1M-context routing. ([#4816](https://github.com/diegosouzapw/OmniRoute/pull/4816) — thanks @Delcado19)

- **fix(dashboard):** align the Engine Combos editor engines with the API schema — the named-combos pipeline dropdown offered four engines (`headroom`, `session-dedup`, `ccr`, `llmlingua`) that `PUT /api/context/combos/[id]` rejects, so selecting one made the save return 400 while the UI swallowed the error. The dropdown is now sourced from a single canonical engine map shared with `stackedPipelineStepSchema` (parity guarded by a unit test), and the editor surfaces save errors plus empty-name/empty-pipeline validation instead of failing quietly. ([#5062](https://github.com/diegosouzapw/OmniRoute/pull/5062) — closes #4955)

- **fix(sse):** surface malformed HTTP-200 upstream responses instead of treating them as success, so combo fallback can trigger. ([#4942](https://github.com/diegosouzapw/OmniRoute/pull/4942) — thanks @haipham22)

- **fix(antigravity):** retry transient upstream failures rather than failing the request outright. ([#4941](https://github.com/diegosouzapw/OmniRoute/pull/4941) — thanks @Jordannst)

- **fix(sse):** exclude WS-bridge controller-closed errors from the provider circuit breaker so a client disconnect no longer trips the whole provider. ([#4870](https://github.com/diegosouzapw/OmniRoute/pull/4870) — closes #4602, thanks @huohua-dev)

- **fix(sse):** resolve custom combos by id and case-insensitive name. ([#4869](https://github.com/diegosouzapw/OmniRoute/pull/4869) — closes #4446, thanks @herjarsa)

- **fix(sse):** forward AI SDK image parts in the Responses translator. ([#4859](https://github.com/diegosouzapw/OmniRoute/pull/4859) — thanks @mugnimaestra)

- **fix(sse):** emit valid concatenable Kiro `tool_calls.arguments` deltas. ([#4855](https://github.com/diegosouzapw/OmniRoute/pull/4855) — thanks @wahyuzero)

- **fix(sse):** strip `temperature` for Claude models with extended thinking enabled (the upstream rejects it). ([#4853](https://github.com/diegosouzapw/OmniRoute/pull/4853) — thanks @noestelar)

- **fix(sse):** unwrap the Qoder HTTP-200 SSE error envelope so combo fallback can trigger. ([#4850](https://github.com/diegosouzapw/OmniRoute/pull/4850) — thanks @vianlearns)

- **fix(sse):** strip reasoning blobs from agentic context to prevent O(n²) token growth across multi-turn agent loops. ([#4849](https://github.com/diegosouzapw/OmniRoute/pull/4849) — thanks @GodrezJr2)

- **fix(sse):** close the reasoning block before message content in the Responses stream so clients render reasoning and answer in the right order. ([#4848](https://github.com/diegosouzapw/OmniRoute/pull/4848) — thanks @kwanLeeFrmVi)

- **fix(config):** sync the full SiliconFlow model list into the registry. ([#4844](https://github.com/diegosouzapw/OmniRoute/pull/4844) — thanks @letanphuc)

- **fix(sse):** strip Composer `<｜final｜>` sentinel markers that leaked after Composer reasoning. ([#4842](https://github.com/diegosouzapw/OmniRoute/pull/4842) — thanks @noestelar)

- **fix(build):** trace-include `sql.js`'s `sql-wasm.wasm` in the standalone bundle so SQLite-WASM works in the packaged build. ([#4839](https://github.com/diegosouzapw/OmniRoute/pull/4839) — thanks @Delcado19)

- **fix(cli):** persist lazily-installed native runtime deps (`better-sqlite3`, `systray2`) to the shared runtime `package.json` with `--save-exact` instead of `--no-save`, so installing one no longer prunes the other as "extraneous" — fixing a "No SQLite driver available" failure after a `--tray` install. ([#4841](https://github.com/diegosouzapw/OmniRoute/pull/4841) — thanks @omartuhintvs)

- **fix(sse):** resolve bare model names to a connection's `defaultModel` before upstream calls. ([#4825](https://github.com/diegosouzapw/OmniRoute/pull/4825) — thanks @anuragg-saxenaa)

- **fix(api):** surface a Docker-localhost hint on provider-node validation connection errors. ([#4822](https://github.com/diegosouzapw/OmniRoute/pull/4822) — thanks @anuragg-saxenaa)

- **fix(sse):** strip Gemini built-in tools when `functionDeclarations` are present in the Antigravity envelope (the two are mutually exclusive upstream). ([#4821](https://github.com/diegosouzapw/OmniRoute/pull/4821) — thanks @vanszs)

- **fix(sse):** strip `X-Stainless-*` headers and normalize the SDK `User-Agent` for OpenAI-compatible endpoints. ([#4820](https://github.com/diegosouzapw/OmniRoute/pull/4820) — thanks @anuragg-saxenaa)

- **fix(oauth):** allow a per-connection refresh lead-time override via `providerSpecificData.refreshLeadMs`. ([#4818](https://github.com/diegosouzapw/OmniRoute/pull/4818) — thanks @anuragg-saxenaa)

- **fix(dashboard):** resolve passthrough model aliases by `providerId` in `ModelSelectModal`. ([#4815](https://github.com/diegosouzapw/OmniRoute/pull/4815) — thanks @anuragg-saxenaa)

- **fix(sse):** strip `enumDescriptions` from Antigravity tool schemas. ([#4813](https://github.com/diegosouzapw/OmniRoute/pull/4813), [#4740](https://github.com/diegosouzapw/OmniRoute/pull/4740) — thanks @anuragg-saxenaa)

- **fix(dashboard):** keep the desktop sidebar visible via an explicit CSS class. ([#4812](https://github.com/diegosouzapw/OmniRoute/pull/4812) — thanks @Delcado19)

- **fix(sse):** filter nameless hosted tools when converting Responses API to Chat format. ([#4789](https://github.com/diegosouzapw/OmniRoute/pull/4789) — upstream, thanks Владимир Акимов)

- **fix(sse):** stream-writer mock `abort()` now returns a Promise (test-stability fix). ([#4788](https://github.com/diegosouzapw/OmniRoute/pull/4788) — thanks @decolua)

- **fix(sse):** use the WorkOS auth-token shape for Cline. ([#4787](https://github.com/diegosouzapw/OmniRoute/pull/4787) — thanks @apeltekci)

- **fix(api):** fall back to the existing access token for any OAuth provider when a refresh fails. ([#4786](https://github.com/diegosouzapw/OmniRoute/pull/4786) — thanks @decolua)

- **fix(sse):** read Antigravity usage from the `response.usageMetadata` envelope. ([#4785](https://github.com/diegosouzapw/OmniRoute/pull/4785) — thanks @decolua)

- **fix(oauth):** verify Cursor installation on Linux before auto-import. ([#4770](https://github.com/diegosouzapw/OmniRoute/pull/4770) — upstream, thanks Ibrahim Ryan)

- **fix(cli):** fall back to the default data dir when `DATA_DIR` is not writable. ([#4767](https://github.com/diegosouzapw/OmniRoute/pull/4767) — upstream, thanks Thiên Toán)

- **fix(sse):** `json_schema` fallback for OpenAI-compatible providers that don't support structured outputs. ([#4766](https://github.com/diegosouzapw/OmniRoute/pull/4766) — thanks @mustafabozkaya)

- **fix(cli):** verify launchd registration and skip self-SIGTERM in macOS autostart. ([#4765](https://github.com/diegosouzapw/OmniRoute/pull/4765) — thanks @ntdung6868)

- **fix(sse):** finalize the `tool_calls` `finish_reason` on early stream end in the OpenAI Responses translator. ([#4764](https://github.com/diegosouzapw/OmniRoute/pull/4764) — thanks @decolua)

- **fix(sse):** gate Kiro image attachments behind a Claude-capability check. ([#4763](https://github.com/diegosouzapw/OmniRoute/pull/4763) — thanks @decolua)

- **fix(sse):** track Ollama streaming usage from raw NDJSON chunks. ([#4754](https://github.com/diegosouzapw/OmniRoute/pull/4754) — thanks @fresent)

- **fix(sse):** include low-level cause details in `formatProviderError`. ([#4741](https://github.com/diegosouzapw/OmniRoute/pull/4741) — thanks @decolua)

- **fix(executors):** `anthropic-compatible-*` gateways now get a `Bearer` token alongside `x-api-key`. ([#4729](https://github.com/diegosouzapw/OmniRoute/pull/4729) — thanks @hodtien)

- **fix(translator):** strip the `x-anthropic-billing-header` in the claude-to-openai path. ([#4728](https://github.com/diegosouzapw/OmniRoute/pull/4728) — thanks @weimaozhen)

- **fix(translator):** preserve `reasoning_effort` for non-Copilot Responses clients. ([#4688](https://github.com/diegosouzapw/OmniRoute/pull/4688) — thanks @ryanngit / @diegosouzapw)

- **fix(codex):** treat an OAuth 401 as an unrecoverable refresh failure (stop retrying a dead token). ([#4686](https://github.com/diegosouzapw/OmniRoute/pull/4686) — thanks @sacwooky / @diegosouzapw)

- **fix(translator):** coerce tool descriptions to strings in OpenAI normalization. ([#4675](https://github.com/diegosouzapw/OmniRoute/pull/4675) — thanks @East-rayyy / @diegosouzapw)

- **fix(dashboard):** stop double-masking an already-masked API key in the list view (E2E 3/9 regression). ([#4671](https://github.com/diegosouzapw/OmniRoute/pull/4671) — thanks @diegosouzapw)

- **fix(combo):** flatten Anthropic tool messages + tool history to prevent an upstream 503. ([#4648](https://github.com/diegosouzapw/OmniRoute/pull/4648) — thanks @warelik / @diegosouzapw)

- **fix(providers):** require a Default Model in the compatible-provider API-key setup flow. ([#4641](https://github.com/diegosouzapw/OmniRoute/pull/4641) — thanks @arden1601)

### 🔒 Security

- **fix(auth):** only trust forwarding headers (`X-Forwarded-For` / `X-Real-IP`) from loopback TCP peers, so a non-loopback client can't spoof its origin to bypass local-only route guards. ([#4689](https://github.com/diegosouzapw/OmniRoute/pull/4689) — thanks @Jordannst / @diegosouzapw)

- **fix(sse):** redact the API key from the AUTH debug log in the chat handler. ([#4858](https://github.com/diegosouzapw/OmniRoute/pull/4858) — thanks @sacwooky)

- **fix(oauth):** classify `/api/oauth/cursor/auto-import` as a local-only route in the route guard, so the loopback-enforced process-spawning endpoint can't be reached through a tunneled/leaked JWT (Hard Rule #17). ([#5070](https://github.com/diegosouzapw/OmniRoute/pull/5070) — thanks @diegosouzapw)

### 📝 Maintenance

- **chore(ci):** harden the release flow — decouple the Quality Ratchet from coverage-shard flakes (`if: !cancelled()` + `--allow-missing`), add fast-path drift gates (`check:complexity`, `check:cognitive-complexity`, `check:pack-policy`, `check:build-scope`), and raise the default build heap to 8 GB. ([#5054](https://github.com/diegosouzapw/OmniRoute/pull/5054) — thanks @diegosouzapw)

- **docs(routing):** sync the combo strategy docs for Fusion (17 strategies). ([#5067](https://github.com/diegosouzapw/OmniRoute/pull/5067) — thanks @diegosouzapw)

- **test(sse):** golden-lock the `provider.ts` translate-path across all providers. ([#4734](https://github.com/diegosouzapw/OmniRoute/pull/4734) — thanks @diegosouzapw / @decolua)

- **docs(env):** document `HEADROOM_URL` in `.env.example` + `ENVIRONMENT.md`. (thanks @diegosouzapw)

- **chore(quality):** rebaseline the file-size ratchet across the rc17 PR-batch levas (leva2/leva3/leva4) to absorb cycle drift. (thanks @diegosouzapw)

---



## What's Changed
* Release v3.8.37 by @diegosouzapw in https://github.com/diegosouzapw/OmniRoute/pull/5053


**Full Changelog**: https://github.com/diegosouzapw/OmniRoute/compare/v3.8.36...v3.8.37