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OmniRoute/docs/architecture/CODEBASE_DOCUMENTATION.md
Pixma 01b2467d61 feat(sse): add LLM Gateway DevPass quota tracking (#12462) 
* feat(sse): add LLM Gateway DevPass quota tracking

Surface the LLM Gateway DevPass allowance (GET /v1/key) in OmniRoute's
quota telemetry, mirroring the OpenRouter API-key fetcher pattern.

- llmgatewayQuotaFetcher.ts: fetch + parse the DevPass /v1/key response
  (decimal-string USD values), exposing two windows — monthly plan
  credits and the 7-day premium-model window — with a 45s TTL cache.
  Pay-as-you-go keys (devPlan "none") and 401/403 fail open (no quota).
- Register in chat.ts before registerGenericQuotaFetchers + register the
  named windows for the dashboard cutoff modal.
- usage/llmgateway.ts leaf + usage.ts dispatch case so the Limits page
  renders the monthly + weekly premium rows.
- Add "llmgateway" to USAGE_FETCHER_PROVIDERS, USAGE_SUPPORTED_PROVIDERS,
  PROVIDER_LIMITS_APIKEY_PROVIDERS, and the dashboard label/order map.
- tests: 21 cases covering the parser, auth fail-open, cache TTL, window
  exhaustion, preflight proceed/block, registration, and the usage leaf.

* docs(sse): add changelog fragment + codebase-doc entry for llmgateway quota

* refactor(sse): register llmgateway quota via quotaTrackersBatch

Move the LLM Gateway fetcher registration out of chat.ts (a frozen
file-size-baseline chokepoint) into quotaTrackersBatch.ts, the dedicated
side-effect module that exists precisely so new fetchers don't grow
chat.ts. The batch import runs at module load, before
registerGenericQuotaFetchers(), so the bespoke fetcher still wins over
the generic path. Fixes the file-size gate (chat.ts must not grow).

---------

Co-authored-by: diegosouzapw <8016841+diegosouzapw@users.noreply.github.com>
2026-09-18 11:58:05 -03:00

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---
title: "OmniRoute Codebase Documentation"
version: 3.8.40
lastUpdated: 2026-06-28
---
# OmniRoute Codebase Documentation
> **Version:** v3.8.51
> **Last updated:** 2026-06-28
> **Audience:** Engineers contributing to OmniRoute or building integrations on top of it.
>
> For high-level architecture diagrams and the reasoning behind each subsystem, read
> [ARCHITECTURE.md](./ARCHITECTURE.md). For deep dives on individual subsystems
> (Auto Combo, MCP server, A2A server, Skills, Memory, Cloud Agents, Resilience,
> Compression, etc.) see their dedicated files in this `docs/` directory.
This file describes **what exists in the repository today** so that a new engineer
can navigate the tree, understand the runtime layering, and know where to add code
without inventing new modules.
---
## 1. Tech Stack
| Concern | Choice |
| ------------- | ------------------------------------------------------------------------------------------------------------------------ |
| Web framework | **Next.js 16** (App Router, standalone output, no global middleware) |
| Language | **TypeScript 6.0+** — target `ES2022`, `module: esnext`, `moduleResolution: bundler`, `strict: false` |
| Runtime | **Node.js** `>=22.22.2 <23` or `>=24.0.0 <27` (enforced via `engines` + `SUPPORTED_NODE_RANGE`) |
| Database | **SQLite** via `better-sqlite3` (singleton, WAL journaling) |
| Desktop | **Electron 41** + `electron-builder` 26.10 (separate workspace at `electron/`) |
| Tests | **Node native test runner** (unit/integration), **Vitest** (MCP, autoCombo, cache), **Playwright** (e2e + protocols-e2e) |
| Build | Next.js standalone via `scripts/build/build-next-isolated.mjs` |
| Lint/format | ESLint flat config + Prettier (`lint-staged` via Husky pre-commit) |
| Module system | ESM everywhere (`"type": "module"`) |
| Workspaces | npm workspace — `open-sse` is the only sub-workspace |
Path aliases (`tsconfig.json`):
- `@/*` → `src/*`
- `@omniroute/open-sse` → `open-sse/index.ts`
- `@omniroute/open-sse/*` → `open-sse/*`
Default HTTP port: **`20128`** (API and dashboard share the same process). Data
directory is `DATA_DIR` env var, defaulting to `~/.omniroute/`.
---
## 2. Repository Layout
```
OmniRoute/
├── src/ Next.js application (App Router, libs, domain, server, shared)
├── open-sse/ Streaming engine workspace (@omniroute/open-sse)
├── electron/ Desktop wrapper (Electron 41 main + preload)
├── bin/ CLI entry points (omniroute, reset-password)
├── tests/ Unit, integration, e2e, protocols-e2e, translator, security, fixtures
├── scripts/ Build, sync, check, migration, and runtime helper scripts
├── docs/ Public documentation (this directory)
├── public/ Static assets, PWA manifest, service worker
├── config/ Runtime config samples
├── images/ Marketing/screenshot assets
├── _ideia/, _references/, _mono_repo/, _tasks/ Internal scratch / planning (not shipped)
├── CLAUDE.md Repo rules for Claude Code
├── AGENTS.md Deeper architecture reference for agents
├── package.json v3.8.51, workspace root
└── tsconfig.json Path aliases + core compiler options
```
---
## 3. `src/` — Next.js Application
```
src/
├── app/ App Router pages + API routes
├── lib/ Core libraries (DB, auth, OAuth, skills, memory, …)
├── domain/ Pure domain layer (policy, fallback, cost, lockout, …)
├── server/ Server-only modules (authz, cors, auth)
├── shared/ Types, constants, validation, contracts, utils (cross-boundary safe)
├── mitm/ Man-in-the-middle proxy helpers for CLI integration
├── models/ Local model metadata / aliasing
├── sse/ Legacy SSE handlers that still live under src/ (not open-sse/)
├── store/ Client-side state stores
├── middleware/ Route-level middleware utilities (not Next.js global middleware)
├── scripts/ In-tree scripts importable by app code
├── types/ Ambient and shared TS types
├── i18n/ Locale bundles
├── instrumentation.ts Next.js instrumentation hook
├── instrumentation-node.ts
└── proxy.ts Top-level proxy bootstrap helper
```
### 3.1 `src/app/` — App Router
The App Router exposes both the dashboard UI and the public/management HTTP API.
There is **no global middleware** — interception is done per-route.
Top-level segments under `src/app/`:
| Path | Purpose |
| ----------------------------------------------------------------------------- | ----------------------------------------- |
| `api/` | All HTTP API routes (see breakdown below) |
| `a2a/` | A2A JSON-RPC 2.0 endpoint (`POST /a2a`) |
| `.well-known/agent.json/` | A2A Agent Card discovery document |
| `(dashboard)/` | Dashboard UI (route group, no URL prefix) |
| `auth/`, `login/`, `forgot-password/`, `callback/` | Auth flows |
| `landing/` | Marketing/landing page |
| `docs/` | Embedded API docs viewer |
| `status/`, `maintenance/`, `offline/` | Operational pages |
| `privacy/`, `terms/` | Legal pages |
| `400/`, `401/`, `403/`, `408/`, `429/`, `500/`, `502/`, `503/` | Static error pages |
| `error.tsx`, `global-error.tsx`, `not-found.tsx`, `forbidden/`, `loading.tsx` | Framework error/loading boundaries |
| `layout.tsx`, `page.tsx`, `globals.css`, `manifest.ts` | Root shell |
#### 3.1.1 `src/app/(dashboard)/dashboard/` — UI pages
`agents`, `analytics`, `api-manager`, `audit`, `auto-combo`, `batch`, `cache`,
`changelog`, `cli-tools`, `cloud-agents`, `combos`, `compression`, `context`,
`costs`, `endpoint`, `health`, `limits`, `logs`, `memory`, `onboarding`,
`playground`, `providers`, `search-tools`, `settings`, `skills`, `system`,
`translator`, `usage`, `webhooks`, plus root `page.tsx`, `HomePageClient.tsx`,
`BootstrapBanner.tsx`.
#### 3.1.2 `src/app/api/` — Top-level API groups
```
src/app/api/
├── a2a/{status, tasks}
├── acp/
├── admin/
├── analytics/
├── assess/
├── auth/
├── batches/
├── cache/
├── cli-tools/
├── cloud/{codex-responses-ws}
├── combos/
├── compliance/
├── compression/
├── context/
├── db/, db-backups/
├── evals/
├── fallback/
├── files/
├── health/
├── init/
├── internal/{concurrency}
├── keys/
├── logs/
├── mcp/{audit, sse, status, stream, tools}
├── memory/{health, [id]/, route.ts}
├── model-combo-mappings/
├── models/
├── monitoring/
├── oauth/
├── openapi/
├── policies/
├── pricing/
├── provider-metrics/, provider-models/, provider-nodes/
├── providers/
├── rate-limit/, rate-limits/
├── resilience/
├── restart/, shutdown/
├── search/
├── sessions/
├── settings/
├── skills/{executions, [id], install, marketplace, route.ts, skillssh}
├── storage/
├── sync/, synced-available-models/
├── system/
├── tags/
├── telemetry/
├── token-health/
├── translator/
├── tunnels/
├── services/ Embedded service management (9router, cliproxy) — LOCAL_ONLY
├── upstream-proxy/
├── usage/
├── v1/ OpenAI-compatible public API
├── v1beta/ Gemini-style compat
├── version-manager/
└── webhooks/
```
#### 3.1.2a `src/app/api/services/` — Embedded Services management
Routes for installing, starting, stopping, and monitoring 9Router and CLIProxyAPI.
All paths are classified **LOCAL_ONLY** (loopback only, hard rule #17) because they
can invoke `npm install` and spawn child processes.
```
src/app/api/services/
├── 9router/
│ ├── _lib.ts getOrInitSupervisor() helper
│ ├── install/route.ts POST — npm install via execFile
│ ├── start/route.ts POST — supervisor.start()
│ ├── stop/route.ts POST — supervisor.stop()
│ ├── restart/route.ts POST — supervisor.restart()
│ ├── update/route.ts POST — npm install newer version
│ ├── rotate-key/route.ts POST — generate new API key + restart
│ ├── status/route.ts GET — live + DB status + version metadata
│ └── auto-start/route.ts POST — toggle auto_start flag
├── cliproxy/
│ ├── _lib.ts getOrInitSupervisor() helper
│ ├── install/route.ts POST — npm install
│ ├── start/route.ts POST — supervisor.start()
│ ├── stop/route.ts POST — supervisor.stop()
│ ├── restart/route.ts POST — supervisor.restart()
│ ├── update/route.ts POST — npm install newer version
│ ├── status/route.ts GET — live + DB status + version metadata
│ └── auto-start/route.ts POST — toggle auto_start flag
└── [name]/
└── logs/route.ts GET — SSE log tail (shared by all services)
```
Corresponding dashboard UI:
`src/app/(dashboard)/dashboard/providers/services/` — two-tab page (CLIProxyAPI + 9Router).
Reverse proxy for 9Router embedded UI:
`src/app/(dashboard)/dashboard/providers/services/[name]/embed/[[...path]]/route.ts`
Deep-dive: `docs/frameworks/EMBEDDED-SERVICES.md`
#### 3.1.3 `src/app/api/v1/` — OpenAI-compatible public API
```
v1/
├── accounts/[id]/ account lookup
├── agents/tasks/[id]/, agents/tasks/ A2A-flavored task endpoints
├── api/ internal API helpers exposed under v1/api
├── audio/{speech, transcriptions}/ TTS + STT
├── batches/[id]/{cancel}, batches/ OpenAI Batches API
├── chat/completions/ Chat Completions (the main endpoint)
├── completions/ Legacy text completions
├── embeddings/ Embeddings
├── files/[id]/, files/ Files API
├── _helpers/ Shared route helpers (no public URL)
├── images/{edits, generations}/ Image gen + edit
├── issues/ Triage helper endpoints
├── management/{proxies}/ Management-scoped routes inside v1
├── messages/{count_tokens}/ Anthropic-style messages compat
├── models/ Model listing (`route.ts`, `catalog.ts`)
├── moderations/ Moderation
├── music/ Music gen
├── providers/[provider]/ Per-provider operations
├── quotas/{check} Quota probes
├── registered-keys/ Registered key admin
├── rerank/ Reranking
├── responses/[...path]/ OpenAI Responses API (catch-all)
├── search/ Web search
├── videos/ Video gen
├── ws/ WebSocket bridge
└── route.ts Index handler
```
Every route file follows the same pattern:
```
Route → CORS preflight → Zod body validation → optional auth
→ API key policy enforcement → handler delegation (open-sse)
```
`v1beta/` is the Gemini-style compat surface (a thin wrapper that translates into
the same `open-sse/handlers/` pipeline).
### 3.2 `src/lib/` — Core libraries
Always import data, sync, OAuth, skill, memory, etc. through these modules. The
table groups the actual directories and notable top-level files.
| Module | Purpose |
| ----------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `a2a/` | A2A protocol server: `taskManager.ts`, `streaming.ts`, `taskExecution.ts`, `routingLogger.ts`, `skills/` (6 skills: cost analysis, health report, provider discovery, quota management, smart routing, list-capabilities) |
| `acp/` | Agent-Control-Protocol: `index.ts`, `manager.ts`, `registry.ts` |
| `api/` | Internal API helpers: `requireManagementAuth.ts`, `requireCliToolsAuth.ts`, `errorResponse.ts` |
| `auth/` | `managementPassword.ts` (password reset / hashing) |
| `batches/` | OpenAI Batches API service (`service.ts`) |
| `catalog/` | OpenRouter catalog sync (`openrouterCatalog.ts`) |
| `cloudAgent/` | Cloud agent registry: `api.ts`, `baseAgent.ts`, `db.ts`, `index.ts`, `registry.ts`, `types.ts`, `agents/{codex, devin, jules}.ts` |
| `combos/` | Combo resolution helpers |
| `compliance/` | Audit + provider audit: `index.ts`, `providerAudit.ts` |
| `config/` | Runtime config glue |
| `db/` | SQLite domain modules (see §3.2.1) |
| `display/` | UI/display helpers used by API responses |
| `embeddings/` | Embedding service registry |
| `env/` | Env loading + introspection |
| `evals/` | Eval runtime |
| `guardrails/` | `piiMasker.ts`, `promptInjection.ts`, `visionBridge.ts`, `visionBridgeHelpers.ts`, `registry.ts`, `base.ts` |
| `jobs/` | Background jobs (`autoUpdate.ts`, …) |
| `memory/` | Persistent memory: `store.ts`, `cache.ts`, `retrieval.ts`, `summarization.ts`, `extraction.ts`, `injection.ts`, `qdrant.ts`, `settings.ts`, `verify.ts`, `schemas.ts`, `types.ts` |
| `monitoring/` | `observability.ts` |
| `oauth/` | OAuth/import provider modules (22): `agy`, `antigravity`, `claude`, `cline`, `codebuddy-cn`, `codex`, `cursor`, `devin-desktop`, `ghe-copilot`, `github`, `gitlab-duo`, `grok-cli-oauth`, `grok-cli`, `kilocode`, `kimi-coding`, `kiro`, `openference`, `qoder`, `trae`, `xai-oauth`, `zed-hosted`, `zed`, plus `services/`, `utils/`, and `constants/oauth.ts` |
| `plugins/` | Plugin loader (`index.ts`) |
| `promptCache/` | `prefixAnalyzer.ts`, `index.ts` |
| `providerModels/` | Managed model lifecycle: `modelDiscovery.ts`, `managedModelImport.ts`, `managedAvailableModels.ts`, `cursorAgent.ts` |
| `providers/` | Provider helpers: `catalog.ts`, `validation.ts`, `imageValidation.ts`, `claudeExtraUsage.ts`, `codexConnectionDefaults.ts`, `codexFastTier.ts`, `webCookieAuth.ts`, `managedAvailableModels.ts`, `requestDefaults.ts` |
| `resilience/` | `settings.ts` — settings for circuit breaker, cooldown, lockout |
| `runtime/` | Runtime feature detection |
| `search/` | `executeWebSearch.ts` |
| `services/` | Embedded services framework: `ServiceSupervisor.ts` (generic child-process supervisor with operation lock, ring buffer, health checker), `bootstrap.ts` (process-level registration and auto-start), `registry.ts` (tool → supervisor map), `apiKey.ts` (AES-256-GCM key store), `modelSync.ts` (periodic model sync), `ringBuffer.ts` (5 MB circular log buffer), `healthCheck.ts` (HTTP health probe), `types.ts`, `embedWsProxy.ts` (WebSocket proxy), `installers/{ninerouter,cliproxy}.ts`. See `docs/frameworks/EMBEDDED-SERVICES.md` |
| `agentSkills/` | Agent Skills catalog + generator: `catalog.ts` (getCatalog/getSkillById/filterCatalog/computeCoverage), `generator.ts` (generateAgentSkills → writes `skills/{id}/SKILL.md`), `openapiParser.ts` (extracts REST endpoints from OpenAPI spec), `cliRegistryParser.ts` (extracts CLI subcommands from bin/cli-registry), `schemas.ts` (Zod: AgentSkillSchema, SkillCoverageSchema, ListQuerySchema, GenerateBodySchema), `types.ts` (AgentSkill, SkillCoverage, SkillMarkdown, GeneratorReport). Consumed by REST routes (`/api/agent-skills/*`), MCP tools (`omniroute_agent_skills_*`), and A2A skill `list-capabilities`. See [AGENT-SKILLS.md](../frameworks/AGENT-SKILLS.md). |
| `skills/` | Skill framework: `registry.ts`, `executor.ts`, `interception.ts`, `injection.ts`, `sandbox.ts`, `custom.ts`, `hybrid.ts`, `builtins.ts`, `a2a.ts`, `providerSettings.ts`, `schemas.ts`, `skillssh.ts`, `types.ts`, plus `builtin/browser.ts` |
| `spend/` | `batchWriter.ts` (write-behind buffer) |
| `sync/` | `bundle.ts`, `tokens.ts` (Cloud Sync) |
| `system/` | System-level helpers |
| `translator/` | Top-level translator glue (delegates into `open-sse/translator/`) |
| `usage/` | Usage accounting: `costCalculator.ts`, `tokenAccounting.ts`, `usageHistory.ts`, `aggregateHistory.ts`, `usageStats.ts`, `callLogs.ts`, `callLogArtifacts.ts`, `fetcher.ts`, `providerLimits.ts`, `migrations.ts` |
| `versionManager/` | Auto-update + version manifest |
| `ws/` | WebSocket bridge |
| `zed-oauth/` | Zed editor OAuth flow |
Top-level files in `src/lib/`:
- The old `localDb.ts` barrel was removed — consumers import specific `src/lib/db/*` modules directly.
- `proxyHealth.ts`, `proxyLogger.ts`, `tokenHealthCheck.ts`, `localHealthCheck.ts`
- `apiBridgeServer.ts`, `cacheLayer.ts`, `semanticCache.ts`, `settingsCache.ts`
- `cloudSync.ts`, `initCloudSync.ts`
- `cloudflaredTunnel.ts`, `ngrokTunnel.ts`, `tailscaleTunnel.ts`
- `consoleInterceptor.ts`, `container.ts`, `gracefulShutdown.ts`, `idempotencyLayer.ts`
- `ipUtils.ts`, `logEnv.ts`, `logPayloads.ts`, `logRotation.ts`
- `modelAliasSeed.ts`, `modelCapabilities.ts`, `modelMetadataRegistry.ts`, `modelsDevSync.ts`
- `piiSanitizer.ts`, `pricingSync.ts`
- `apiKeyExposure.ts`, `cacheControlSettings.ts`, `dataPaths.ts`, `toolPolicy.ts`
- `translatorEvents.ts`, `usageDb.ts`, `usageAnalytics.ts`, `webhookDispatcher.ts`
#### 3.2.1 `src/lib/db/`
Singleton SQLite database (`getDbInstance()` in `core.ts`, WAL journaling).
**Never write raw SQL in routes or handlers** — go through these modules.
![Database schema overview (selected core tables)](../diagrams/exported/db-schema-overview.svg)
> Source: [diagrams/db-schema-overview.mmd](../diagrams/db-schema-overview.mmd)
Domain modules (each owns one or more tables): `apiKeys.ts`, `backup.ts`,
`batches.ts`, `cleanup.ts`, `cliToolState.ts`, `combos.ts`,
`commandCodeAuth.ts`, `compression.ts`, `compressionAnalytics.ts`,
`compressionCacheStats.ts`, `compressionCombos.ts`, `compressionScheduler.ts`,
`contextHandoffs.ts`, `core.ts`, `creditBalance.ts`, `databaseSettings.ts`,
`detailedLogs.ts`, `domainState.ts`, `encryption.ts`, `evals.ts`, `files.ts`,
`healthCheck.ts`, `jsonMigration.ts`, `migrationRunner.ts`,
`modelComboMappings.ts`, `models.ts`, `oneproxy.ts`, `prompts.ts`,
`providers.ts`, `providerLimits.ts`, `proxies.ts`, `quotaSnapshots.ts`,
`readCache.ts`, `reasoningCache.ts`, `registeredKeys.ts`, `secrets.ts`,
`sessionAccountAffinity.ts`, `settings.ts`, `stateReset.ts`, `stats.ts`,
`syncTokens.ts`, `tierConfig.ts`, `upstreamProxy.ts`, `versionManager.ts`,
`webhooks.ts`.
`migrations/` holds 168 versioned `.sql` files (idempotent, transactional) and is
executed by `migrationRunner.ts` at boot.
Tables created across the migrations (123 total):
`a`, `account_key_limits`, `api_keys`, `batches`, `call_logs`,
`combo_adaptation_state`, `combos`, `command_code_auth_sessions`,
`compression_analytics`, `compression_cache_stats`,
`compression_combo_assignments`, `compression_combos`, `context_handoffs`,
`daily_usage_summary`, `db_meta`, `domain_budgets`, `domain_circuit_breakers`,
`domain_cost_history`, `domain_fallback_chains`, `domain_lockout_state`,
`eval_cases`, `eval_runs`, `eval_suites`, `files`, `hourly_usage_summary`,
`key_value`, `mcp_tool_audit`, `memories`, `model_combo_mappings`,
`provider_connections`, `provider_key_limits`, `provider_nodes`,
`proxy_assignments`, `proxy_logs`, `proxy_registry`, `quota_snapshots`,
`reasoning_cache`, `registered_keys`, `request_detail_logs`,
`routing_decisions`, `semantic_cache`, `session_account_affinity`,
`skill_executions`, `skills`, `sync_tokens`, `tier_assignments`,
`tier_config`, `upstream_proxy_config`, `usage_history`, `version_manager`,
`webhooks` (plus FTS5 virtual tables for memory search).
### 3.3 `src/domain/` — Domain layer
Pure business logic, no I/O. Imported by routes and handlers.
| File | Purpose |
| ------------------------------------------ | ------------------------------------------------- |
| `policyEngine.ts` | Top-level policy resolver |
| `fallbackPolicy.ts` | Fallback decision tree |
| `costRules.ts` | Cost calculation rules |
| `lockoutPolicy.ts` | Model lockout decisions |
| `tagRouter.ts` | Tag-based routing |
| `comboResolver.ts` | Combo resolution from request → target list |
| `connectionModelRules.ts` | Per-connection model filters |
| `modelAvailability.ts` | Model availability check |
| `degradation.ts` | Degraded-mode transitions |
| `providerExpiration.ts` | Expired account/key detection |
| `quotaCache.ts` | Cached quota decisions |
| `responses.ts`, `omnirouteResponseMeta.ts` | Response shape helpers |
| `configAudit.ts` | Config change audit |
| `assessment/` | Model assessment (per RFC, partially implemented) |
| `types.ts` | Shared domain types |
### 3.4 `src/server/` — Server-only
Cannot be imported from client components.
```
server/
├── auth/loginGuard.ts
├── authz/
│ ├── classify.ts Classifies routes as public vs management
│ ├── assertAuth.ts Assertion helper
│ ├── context.ts Per-request authz context
│ ├── headers.ts
│ ├── pipeline.ts Authz pipeline
│ ├── policies/ Concrete policies
│ └── types.ts
└── cors/origins.ts CORS origin allowlist
```
### 3.5 `src/shared/` — Safe-to-share
Split into focused subdirectories:
- `constants/` — `providers.ts` (Zod-validated provider catalog), `models.ts`,
`modelSpecs.ts`, `modelCompat.ts`, `pricing.ts`, `cliTools.ts`,
`cliCompatProviders.ts`, `routingStrategies.ts`, `comboConfigMode.ts`,
`headers.ts`, `upstreamHeaders.ts` (denylist), `mcpScopes.ts`,
`errorCodes.ts`, `publicApiRoutes.ts`, `batch.ts`, `batchEndpoints.ts`,
`bodySize.ts`, `colors.ts`, `appConfig.ts`, `config.ts`,
`sidebarVisibility.ts`, `visionBridgeDefaults.ts`.
- `validation/` — `schemas.ts` (~80 Zod schemas), `compressionConfigSchemas.ts`,
`providerSchema.ts`, `settingsSchemas.ts`, `helpers.ts`.
- `contracts/` — public API contracts shipped to npm.
- `types/` — shared TS types.
- `utils/` — `circuitBreaker.ts`, `apiAuth.ts`, `apiKey.ts`, `apiKeyPolicy.ts`,
`api.ts`, `classify429.ts`, `cliCompat.ts`, `clipboard.ts`, `cloud.ts`, `cn.ts`,
`cors.ts`, `featureFlags.ts`,
`fetchTimeout.ts`, `formatting.ts`, `inputSanitizer.ts`, `logger.ts`,
`machine.ts`, `machineId.ts`, `maskEmail.ts`, `modelCatalogSearch.ts`,
`nodeRuntimeSupport.ts`, `parseApiKeys.ts`, `providerHints.ts`,
`providerModelAliases.ts`, `rateLimiter.ts`, `releaseNotes.ts`,
`a11yAudit.ts`, plus dashboard hooks/components under `services/`, `network/`,
`middleware/`, `schemas/`, `hooks/`, `components/`.
---
## 4. `open-sse/` — Streaming engine workspace
Separate npm workspace published as `@omniroute/open-sse`. Owns request
processing, executors, translators, services, transformer, and the MCP server.
```
open-sse/
├── index.ts Public exports
├── package.json Workspace manifest
├── tsconfig.json
├── types.d.ts
├── config/ Provider registries, header profiles, identity, …
├── handlers/ Request handlers (chat, embeddings, audio, image, …)
├── executors/ 108 provider-specific HTTP executors
├── translator/ Format conversion (OpenAI ↔ Claude ↔ Gemini ↔ Cursor ↔ Kiro)
├── transformer/ Responses API ↔ Chat Completions stream transformer
├── services/ 80+ service modules (combos, fallback, quotas, identity, …)
├── utils/ Streaming helpers, TLS client, AWS SigV4, proxy fetch, …
└── mcp-server/ MCP server (3 transports, 33 scopes, 110 tools)
```
### 4.1 `open-sse/handlers/`
| Handler | Purpose |
| ----------------------- | ------------------------------------------------------------------------ |
| `chatCore.ts` | Main chat pipeline (cache, rate limit, combo routing, executor dispatch) |
| `responsesHandler.ts` | OpenAI Responses API entry point |
| `embeddings.ts` | Embeddings |
| `imageGeneration.ts` | Image generation |
| `audioSpeech.ts` | Text-to-speech |
| `audioTranscription.ts` | Speech-to-text |
| `videoGeneration.ts` | Video generation |
| `musicGeneration.ts` | Music generation |
| `rerank.ts` | Reranking |
| `moderations.ts` | Moderation |
| `search.ts` | Web search |
| `sseParser.ts` | SSE event parser |
| `usageExtractor.ts` | Pull token counts out of upstream streams |
| `responseSanitizer.ts` | Strip provider-specific noise |
| `responseTranslator.ts` | Glue between provider response and translator layer |
### 4.2 `open-sse/executors/`
108 provider executors, each extending `BaseExecutor` (`base.ts`):
`antigravity`, `azure-openai`, `blackbox-web`, `cliproxyapi`,
`chatgpt-web-codex`, `cloudflare-ai`, `codex`, `commandCode`, `cursor`, `default`, `devin-cli`,
`muse-spark-web`, `nlpcloud`, `opencode`, `perplexity-web`, `petals`,
`pollinations`, `qoder`, `vertex`, `devin-desktop`, plus `claudeIdentity.ts`
(shared identity helper) and `index.ts` (registry).
> Note: providers not listed here are served by `default.ts` using the generic
> OpenAI-compatible executor. The full provider catalog (355 providers) lives in
> `src/shared/constants/providers.ts`.
### 4.3 `open-sse/translator/`
Hub-and-spoke translation (OpenAI is the hub).
- **9 request translators** (`translator/request/`):
`antigravity-to-openai`, `claude-to-gemini`, `claude-to-openai`,
`gemini-to-openai`, `openai-responses`, `openai-to-claude`,
`openai-to-cursor`, `openai-to-gemini`, `openai-to-kiro`.
- **9 response translators** (`translator/response/`):
`claude-to-openai`, `cursor-to-openai`, `gemini-to-claude`, `gemini-to-openai`,
`kiro-to-openai`, `openai-responses`, `openai-to-antigravity`,
`openai-to-claude`.
- **9 helpers** (`translator/helpers/`):
`claudeHelper`, `geminiHelper`, `geminiToolsSanitizer`, `maxTokensHelper`,
`openaiHelper`, `responsesApiHelper`, `schemaCoercion`, `toolCallHelper`, plus
helper tests.
- **Image helpers** (`translator/image/sizeMapper.ts`).
- Top-level: `bootstrap.ts`, `formats.ts`, `registry.ts`, `index.ts`.
### 4.4 `open-sse/transformer/`
- `responsesTransformer.ts` — `TransformStream`-based Responses API ↔ Chat
Completions converter (used by the `responses/` route catch-all).
### 4.5 `open-sse/services/`
Highlights (full list under `open-sse/services/`):
| Concern | Files |
| -------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Combo routing | `combo.ts` (19 strategies), `comboConfig.ts`, `comboMetrics.ts`, `comboManifestMetrics.ts`, `comboAgentMiddleware.ts` |
| Auto Combo engine | `autoCombo/` — `engine.ts`, `scoring.ts`, `taskFitness.ts`, `virtualFactory.ts`, `modePacks.ts`, `autoPrefix.ts`, `persistence.ts`, `providerDiversity.ts`, `providerRegistryAccessor.ts`, `routerStrategy.ts`, `selfHealing.ts`, `index.ts` |
| Resilience | `accountFallback.ts` (cooldown + lockout), `errorClassifier.ts`, `requestRejectedStreak.ts`, `emergencyFallback.ts`, `rateLimitManager.ts`, `rateLimitSemaphore.ts`, `accountSemaphore.ts`, `accountSelector.ts` |
| Quotas | `quotaMonitor.ts`, `quotaPreflight.ts`, `bailianQuotaFetcher.ts`, `codexQuotaFetcher.ts`, `deepseekQuotaFetcher.ts`, `openrouterQuotaFetcher.ts`, `openrouterFreeWindow.ts`, `llmgatewayQuotaFetcher.ts`, `crofUsageFetcher.ts`, `antigravityCredits.ts` |
| Caching | `reasoningCache.ts`, `searchCache.ts`, `signatureCache.ts`, `requestDedup.ts` |
| Routing intelligence | `intentClassifier.ts`, `taskAwareRouter.ts`, `backgroundTaskDetector.ts`, `volumeDetector.ts`, `wildcardRouter.ts`, `workflowFSM.ts`, `specificityDetector.ts`, `specificityRules.ts`, `specificityTypes.ts` |
| Model handling | `modelCapabilities.ts`, `modelDeprecation.ts`, `modelFamilyFallback.ts`, `modelStrip.ts`, `model.ts`, `provider.ts`, `providerRequestDefaults.ts`, `providerCostData.ts`, `payloadRules.ts` |
| Compression | `compression/` — full compression engine wiring |
| Token + session | `tokenRefresh.ts`, `sessionManager.ts`, `apiKeyRotator.ts`, `contextManager.ts`, `contextHandoff.ts`, `systemPrompt.ts`, `roleNormalizer.ts`, `responsesInputSanitizer.ts`, `toolSchemaSanitizer.ts`, `toolLimitDetector.ts`, `thinkingBudget.ts` |
| Tier / manifest | `tierResolver.ts`, `tierConfig.ts`, `tierDefaults.json`, `tierTypes.ts`, `manifestAdapter.ts` |
| IP / network | `ipFilter.ts`, `webSearchFallback.ts` |
| Batches | `batchProcessor.ts` |
| Usage | `usage.ts` |
### 4.6 `open-sse/mcp-server/`
- **110 unique tools** wired in `server.ts` (45 canonical in `schemas/tools.ts` +
memory, skills, GitHub-skills, pool, gamification, plugin, Notion, Obsidian,
local-corpus and compression modules — union counted by `countUniqueMcpTools`).
- **3 transports**: stdio, HTTP Streamable, SSE.
- **33 scopes** enforced at runtime — base list in `src/shared/constants/mcpScopes.ts`, full set is the union of the scopes declared by each tool module.
- Audit table: `mcp_tool_audit` (populated by `audit.ts`).
- Files: `server.ts`, `index.ts`, `httpTransport.ts`, `audit.ts`, `scopeEnforcement.ts`,
`runtimeHeartbeat.ts`, `descriptionCompressor.ts`, `schemas/{tools, a2a, audit, index}.ts`,
`tools/{advancedTools, compressionTools, memoryTools, skillTools}.ts`,
plus tests under `__tests__/`.
- See [MCP-SERVER.md](../frameworks/MCP-SERVER.md) for the full tool catalog.
### 4.7 `open-sse/config/`
Provider registries (`providerRegistry.ts`, `providerModels.ts`,
`providerHeaderProfiles.ts`), per-format model registries (`audioRegistry.ts`,
`embeddingRegistry.ts`, `imageRegistry.ts`, `moderationRegistry.ts`,
`musicRegistry.ts`, `rerankRegistry.ts`, `searchRegistry.ts`, `videoRegistry.ts`),
identity helpers (`codexIdentity.ts`, `codexInstructions.ts`,
`anthropicHeaders.ts`, `antigravityUpstream.ts`, `antigravityModelAliases.ts`,
`cliFingerprints.ts`, `toolCloaking.ts`, `defaultThinkingSignature.ts`),
credential helpers (`credentialLoader.ts`, `codexClient.ts`), and cloud
adapters (`azureAi.ts`, `bedrock.ts`, `datarobot.ts`, `glmProvider.ts`,
`maritalk.ts`, `oci.ts`, `petals.ts`, `runway.ts`, `sap.ts`, `watsonx.ts`,
`ollamaModels.ts`, `errorConfig.ts`, `constants.ts`, `registryUtils.ts`).
### 4.8 `open-sse/utils/`
Streaming primitives and provider helpers: `stream.ts`, `streamHandler.ts`,
`streamHelpers.ts`, `streamPayloadCollector.ts`, `streamReadiness.ts`,
`sseHeartbeat.ts`, `proxyFetch.ts`, `proxyDispatcher.ts`, `tlsClient.ts`,
`networkProxy.ts`, `awsSigV4.ts`, `cacheControlPolicy.ts`,
`cursorChecksum.ts`, `cursorAgentProtobuf.ts`, `cursorVersionDetector.ts`,
`comfyuiClient.ts`, `kieTask.ts`, `bypassHandler.ts`, `aiSdkCompat.ts`,
`thinkTagParser.ts`, `urlSanitize.ts`, `usageTracking.ts`, `requestLogger.ts`,
`progressTracker.ts`, `cors.ts`, `error.ts`, `logger.ts`, `sleep.ts`,
`ollamaTransform.ts`.
---
## 5. `electron/` — Desktop wrapper
```
electron/
├── main.js Electron main process
├── preload.js Preload bridge (contextIsolation enabled)
├── types.d.ts
├── package.json electron-builder config, version 3.8.51
├── README.md
├── assets/ Build resources (icons, entitlements, …)
├── node_modules/ Dedicated node_modules (better-sqlite3, electron-updater)
└── dist-electron/ Build output (not committed)
```
Five npm scripts at the workspace root: `electron:dev`, `electron:build`,
`electron:build:{win,mac,linux}`, `electron:smoke:packaged`. Auto-update is via
`electron-updater` pointing at the GitHub release feed.
---
## 6. `bin/` — CLI
```
bin/
├── omniroute.mjs Main CLI entry (Node ESM)
├── reset-password.mjs Reset the management password from CLI
├── mcp-server.mjs MCP server launcher (stdio)
├── nodeRuntimeSupport.mjs Node version guard
└── cli/
├── program.mjs Commander program builder
├── runtime.mjs withRuntime helper (server-first/db-fallback)
├── output.mjs Output formatters (json/jsonl/table/csv)
├── i18n.mjs t() helper with locales
├── api.mjs API fetch helper
├── data-dir.mjs
├── encryption.mjs
├── sqlite.mjs
└── commands/
├── registry.mjs Command registration
├── setup.mjs
├── doctor.mjs
├── providers.mjs
└── ... (one file per command/group)
```
Two binaries are exposed in `package.json` → `bin`:
- `omniroute` → `bin/omniroute.mjs`
- `omniroute-reset-password` → `bin/reset-password.mjs`
---
## 7. `tests/`
| Directory | Type |
| ---------------------------------------------------- | ------------------------------------------------------------------------------------------- |
| `tests/unit/` | Unit tests via Node native test runner (1821 files, plus `api/`, `auth/`, `authz/` subdirs) |
| `tests/integration/` | Cross-module + DB-state tests |
| `tests/e2e/` | Playwright UI tests |
| `tests/e2e/protocol-clients.test.ts` | MCP/A2A protocol e2e |
| `tests/translator/` | Translator-specific tests |
| `tests/security/` | Security regressions |
| `tests/load/` | Load / stress tests |
| `tests/golden-set/` | Reference outputs for translator regressions |
| `tests/helpers/`, `tests/fixtures/`, `tests/manual/` | Support |
Common commands:
| Command | What it runs |
| -------------------------------------------------------- | ---------------------------------------------------------------- |
| `npm run test:unit` | All `tests/unit/*.test.ts` via Node test runner (concurrency 10) |
| `npm run test:vitest` | Vitest suite (MCP, autoCombo, cache) |
| `npm run test:e2e` | Playwright UI suite |
| `npm run test:protocols:e2e` | MCP + A2A protocol e2e |
| `npm run test:coverage` | Coverage gate (≥60% lines/statements/functions/branches) |
| `node --import tsx/esm --test tests/unit/<file>.test.ts` | Single file run |
---
## 8. `scripts/`
Organized into 6 subfolders by purpose.
- **`scripts/build/`** — `build-next-isolated.mjs`, `prepublish.ts`,
`prepare-electron-standalone.mjs`, `pack-artifact-policy.ts`,
`validate-pack-artifact.ts`, `postinstall.mjs`, `postinstallSupport.mjs`,
`uninstall.mjs`, `bootstrap-env.mjs`, `runtime-env.mjs`,
`native-binary-compat.mjs`.
- **`scripts/dev/`** — `run-next.mjs`, `run-next-playwright.mjs`,
`run-standalone.mjs`, `standalone-server-ws.mjs`, `responses-ws-proxy.mjs`,
`v1-ws-bridge.mjs`, `smoke-electron-packaged.mjs`,
`run-playwright-tests.mjs`, `run-ecosystem-tests.mjs`,
`run-protocol-clients-tests.mjs`, `sync-env.mjs`, `healthcheck.mjs`,
`system-info.mjs`.
- **`scripts/check/`** — `check-cycles.mjs`, `check-docs-sync.mjs`,
`check-docs-counts-sync.mjs`, `check-env-doc-sync.mjs`,
`check-deprecated-versions.mjs`, `check-route-validation.mjs`,
`check-t11-any-budget.mjs`, `check-pr-test-policy.mjs`,
`check-supported-node-runtime.ts`, `test-report-summary.mjs`.
- **`scripts/docs/`** — `generate-docs-index.mjs`, `gen-provider-reference.ts`.
- **`scripts/i18n/`** — `generate-multilang.mjs`, `run-visual-qa.mjs`,
`generate-qa-checklist.mjs`, `apply-priority-overrides.mjs`,
`validate_translation.py`, `check_translations.py`, `i18n_autotranslate.py`,
`untranslatable-keys.json`.
- **`scripts/ad-hoc/`** — `cursor-tap.cjs`, `sync-cursor-models.mjs`,
`migrate-env.mjs`, `dbsetup.js`.
---
## 9. Request Pipeline (Summary)
![Request pipeline (/v1/chat/completions)](../diagrams/exported/request-pipeline.svg)
> Source: [diagrams/request-pipeline.mmd](../diagrams/request-pipeline.mmd)
```
Client request
→ /v1/chat/completions (route.ts)
CORS preflight check
Zod validation (chatCompletionsSchema in shared/validation/schemas.ts)
Auth (extractApiKey + isValidApiKey OR requireManagementAuth)
Policy engine (src/server/authz/pipeline.ts)
Guardrails (PII masker, prompt injection, vision bridge)
→ handleChatCore() (open-sse/handlers/chatCore.ts)
Cache check (semantic + read cache)
Rate limit (rateLimitManager, accountSemaphore)
Combo routing (if model resolves to a combo)
comboResolver → loop per target → handleSingleModel()
translateRequest() (open-sse/translator/request/*)
getExecutor(providerId).execute() (open-sse/executors/*)
fetch upstream → retry/backoff via accountFallback
translateResponse() (open-sse/translator/response/*)
SSE stream OR JSON response
If Responses API: TransformStream via open-sse/transformer/responsesTransformer.ts
→ Compliance audit (src/lib/compliance/)
→ Response to client
```
### Resilience runtime state (three mechanisms)
| Mechanism | Scope | Where |
| ------------------------ | ----------------------------- | ------------------------------------------------------------------------------------------------------------ |
| Provider circuit breaker | Whole provider | `src/shared/utils/circuitBreaker.ts`, persisted in `domain_circuit_breakers` |
| Connection cooldown | One account/key | `markAccountUnavailable()` in `src/sse/services/auth.ts`; consumed by `accountFallback.checkFallbackError()` |
| Model lockout | Provider + connection + model | `open-sse/services/accountFallback.ts`, persisted in `domain_lockout_state` |
See [RESILIENCE_GUIDE.md](./RESILIENCE_GUIDE.md) and the dedicated section in
[CLAUDE.md](../../CLAUDE.md).
---
## 10. How to Contribute
### Add a new provider
1. Register in `src/shared/constants/providers.ts` (Zod-validated at load).
2. Add an executor in `open-sse/executors/` if custom logic is required
(extend `BaseExecutor`).
3. Add a translator in `open-sse/translator/` if it does not speak OpenAI format.
4. If OAuth-based, add config under `src/lib/oauth/providers/` and
`src/lib/oauth/services/`.
5. Register models in `open-sse/config/providerRegistry.ts` (or the format-specific
registry under `open-sse/config/`).
6. Write tests under `tests/unit/`.
### Add a new API route
1. Create `src/app/api/your-route/route.ts`.
2. Follow the pattern: CORS → Zod body validation → auth → handler delegation.
3. If new request shape: add the Zod schema in `src/shared/validation/schemas.ts`.
4. If management-only: add the path to `src/shared/constants/publicApiRoutes.ts`
(denylist for the public API surface).
5. Add tests under `tests/unit/`.
6. Update `docs/reference/API_REFERENCE.md` and `docs/openapi.yaml`.
### Add a new DB module
1. Create `src/lib/db/yourModule.ts` and import `getDbInstance()` from `./core.ts`.
2. Export CRUD functions for your domain.
3. If new tables: add a migration under `src/lib/db/migrations/`, numbered
sequentially, idempotent, transactional.
4. Importers use direct imports from `@/lib/db/yourModule` (no barrel — the old `localDb.ts` re-export layer was removed).
5. Add tests under `tests/unit/`.
### Add a new MCP tool
1. Add the tool definition under `open-sse/mcp-server/tools/` (or extend
`open-sse/mcp-server/schemas/tools.ts`).
2. Assign the appropriate scope(s) in `src/shared/constants/mcpScopes.ts`.
3. Register the tool in `open-sse/mcp-server/server.ts`.
4. Add tests under `open-sse/mcp-server/__tests__/`.
5. Update [MCP-SERVER.md](../frameworks/MCP-SERVER.md).
### Add a new A2A skill
See [A2A-SERVER.md § Adding a New Skill](../frameworks/A2A-SERVER.md). Skills live in
`src/lib/a2a/skills/` and are registered through the A2A task manager.
---
## 11. Conventions
- **Code style**: 2-space indent, double quotes, 100 char width, semicolons,
`es5` trailing commas — enforced by Prettier via `lint-staged`.
- **Imports**: external → internal (`@/`, `@omniroute/open-sse`) → relative.
- **Naming**: files `camelCase` or `kebab-case`, components `PascalCase`,
constants `UPPER_SNAKE`.
- **ESLint**: `no-eval`, `no-implied-eval`, `no-new-func` = `error` everywhere;
`no-explicit-any` = `warn` in `open-sse/` and `tests/`, error elsewhere.
- **TypeScript**: `strict: false` (legacy posture). Prefer explicit types over
inference for cross-module boundaries.
- **Database**: never write raw SQL in routes or handlers — always go through
`src/lib/db/` modules. Never barrel-import — use specific `src/lib/db/*` modules directly.
- **DB-entity typing (#3512)**: a function that writes or reads a DB table's
row shape should take/return a named TS interface mirroring that table's
columns 1:1, not `any` or an inline anonymous type at the call site. Land
the interface next to the function (e.g. `export interface UsageEntry` in
`src/lib/usage/usageHistory.ts` above `saveRequestUsage`), keep individual
fields optional/nullable when different writers populate the row
incrementally, and prefer `unknown` over `any` for a field whose shape
varies across callers (documented on the field, e.g. `UsageEntry.tokens`
accepts both raw provider-shaped usage and the normalized shape). Once a
file's `any` count reaches zero this way, add it to the
`check:any-budget:t11` allowlist (`scripts/check/check-t11-any-budget.mjs`,
`maxAny: 0`) so it can't regress. This is a first-slice convention — the
broader "no anonymous `any`" cleanup is iterative across the rest of the
codebase.
- **Errors**: try/catch with specific error types, log with pino context. Never
silently swallow errors in SSE streams; use abort signals for cleanup.
- **Security**: never use `eval()` / `new Function()` / implied eval. Validate
all inputs with Zod. Encrypt credentials at rest (AES-256-GCM). Keep
`src/shared/constants/upstreamHeaders.ts` denylist aligned with the
sanitize/validation layer.
- **Commits**: Conventional Commits — `feat(scope): subject`. Allowed scopes:
`db`, `sse`, `oauth`, `dashboard`, `api`, `cli`, `docker`, `ci`, `mcp`,
`a2a`, `memory`, `skills`.
- **Branches**: prefixes `feat/`, `fix/`, `refactor/`, `docs/`, `test/`,
`chore/`. Never commit directly to `main`.
- **Husky**: pre-commit runs `lint-staged` + `check:docs-sync` +
`check:any-budget:t11`; pre-push runs `check:any-budget:t11` + `check:tracked-artifacts` (fast gates; excludes `test:unit`).
---
## 12. Hard Rules (from CLAUDE.md)
1. Never commit secrets or credentials.
2. Never barrel-import — use specific `src/lib/db/*` modules directly.
3. Never use `eval()` / `new Function()` / implied eval.
4. Never commit directly to `main`.
5. Never write raw SQL in routes — always go through `src/lib/db/` modules.
6. Never silently swallow errors in SSE streams.
7. Always validate inputs with Zod schemas.
8. Always include tests when changing production code.
9. Coverage must stay ≥ 60% (statements, lines, functions, branches).
---
## 13. See Also
- [ARCHITECTURE.md](./ARCHITECTURE.md) — high-level architecture and module
responsibilities.
- [API_REFERENCE.md](../reference/API_REFERENCE.md) — public + management API reference.
- [FEATURES.md](../guides/FEATURES.md) — feature matrix and version highlights.
- [RESILIENCE_GUIDE.md](./RESILIENCE_GUIDE.md) — circuit breaker, cooldown,
lockout deep dive.
- [AUTO-COMBO.md](../routing/AUTO-COMBO.md) — Auto Combo scoring and strategies.
- [MCP-SERVER.md](../frameworks/MCP-SERVER.md) — full MCP tool catalog + transports.
- [A2A-SERVER.md](../frameworks/A2A-SERVER.md) — A2A protocol skills and discovery.
- [COMPRESSION_GUIDE.md](../compression/COMPRESSION_GUIDE.md) — RTK + Caveman compression.
- [CLI-TOOLS.md](../reference/CLI-TOOLS.md) — CLI integrations.
- [ELECTRON_GUIDE.md](../guides/ELECTRON_GUIDE.md) (if present), [DOCKER_GUIDE.md](../guides/DOCKER_GUIDE.md), [FLY_IO_DEPLOYMENT_GUIDE.md](../ops/FLY_IO_DEPLOYMENT_GUIDE.md), [VM_DEPLOYMENT_GUIDE.md](../ops/VM_DEPLOYMENT_GUIDE.md), [TERMUX_GUIDE.md](../guides/TERMUX_GUIDE.md), [PWA_GUIDE.md](../guides/PWA_GUIDE.md) — deployment targets.
- [TROUBLESHOOTING.md](../guides/TROUBLESHOOTING.md) — common operational issues.
- [CONTRIBUTING.md](../../CONTRIBUTING.md) — contributor workflow.
- [CLAUDE.md](../../CLAUDE.md) — repo rules for Claude Code (the source of truth
for many of the conventions above).
- [AGENTS.md](../../AGENTS.md) — deeper architecture reference used by agents.
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