OmniRoute/docs/reference/FEATURE_FLAGS.md

title, version, lastUpdated

title	version	lastUpdated
Feature Flags	3.8.51	2026-09-03

Feature Flags

Runtime toggles that change OmniRoute's behavior without a redeploy. Every flag listed here is defined in src/shared/constants/featureFlagDefinitions.ts — the single source of truth. The dashboard and the REST API both read from that file, so the table below is generated to match it 1:1.

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What Feature Flags Are

A feature flag is a named toggle (boolean or enum) whose value can be changed at runtime and persisted in the database, with no process redeploy required. Each flag is described by a FeatureFlagDefinition with a key, label, description, category, defaultValue, type, and a requiresRestart hint.

Resolution Order

The effective value of a flag is resolved by resolveFeatureFlag() with this precedence (highest wins):

1. DB override — a value stored in the key_value table under the feature_flags namespace (set via the dashboard or the REST API).
2. Environment variable — process.env[<KEY>], if set and non-empty.
3. Definition default — the defaultValue from featureFlagDefinitions.ts.

A boolean flag is considered enabled when its effective value is "true", "1", or "yes" (see isFeatureFlagEnabled()).

Note

Most flags also have a matching environment variable of the same name documented in ENVIRONMENT.md. The flag's DB override takes precedence over that environment variable. A flag with requiresRestart: true is persisted immediately but only re-read at process startup — toggling it surfaces a "Restart Server" banner in the dashboard.

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Flag Catalog

67 flags across 6 categories. Default is the definition default — the value used when neither a DB override nor an environment variable is present.

Security (10)

Key	Type	Default	Description
REQUIRE_API_KEY	boolean	false	Require an API key for all incoming requests.
INPUT_SANITIZER_ENABLED	boolean	true	Enable input sanitization for all requests.
INJECTION_GUARD_MODE	enum	off	Prompt injection guard mode. Values: off, warn, block, redact.
PII_REDACTION_ENABLED	boolean	false	Redact PII from requests (independent of INPUT_SANITIZER_MODE).
PII_RESPONSE_SANITIZATION	boolean	false	Sanitize PII from provider responses.
PII_RESPONSE_SANITIZATION_MODE	enum	redact	Mode for PII response sanitization. Values: redact, warn, block, off.
OUTBOUND_SSRF_GUARD_ENABLED	boolean	true	Block outbound requests to private/internal IP ranges.
ALLOW_API_KEY_REVEAL	boolean	false	Allow authenticated dashboard users to reveal stored API keys instead of only seeing masked values.
AUTH_LOG_INCLUDE_ACCOUNT_ID	boolean	false	Include account prefix in AUTH log lines (e.g. "Using account: abc12345..."). Disabled by default so account identifiers are redacted from shared/multi-tenant process logs. Independent from Debug Mode; flipping Debug Mode does not reveal this.
OMNIROUTE_OIDC_DISABLE_PASSWORD_LOGIN	boolean	false	When OIDC is enabled, disable password login so users can only authenticate via OIDC Single Sign-On. When disabled (default), both password login and OIDC are available.

Network (14)

Key	Type	Default	Restart	Description
ENABLE_TLS_FINGERPRINT	boolean	false	✓	Enable TLS fingerprint stealth mode.
AUDIO_REMOTE_PROVIDER_NODES	boolean	false		Allow the /v1/audio/* routes to use OpenAI-compatible provider nodes hosted outside localhost. Off by default — routing audio to a remote host changes egress identity and must be an explicit operator decision. Loopback nodes are always allowed and unaffected.
PROXY_AUTO_SELECT_ENABLED	boolean	false		When no proxy is assigned to a connection, auto-select the first working proxy from the registry. Off by default (otherwise any registry proxy becomes a global fallback — #3332).
OMNIROUTE_CONTROL_PLANE_PROXY_DIRECT_FALLBACK	boolean	false		Allow OAuth and provider validation flows to bypass a pinned proxy and connect directly when proxy reachability pre-checks fail. Off by default because this can change egress IP.
NETWORK_ROTATION_SHARED_EGRESS_GUARD	boolean	true		On a network exception (timeout, connection refused/reset) for a multi-account rotation executor, when the failing account has no dedicated proxy, apply a short cooldown and skip other proxy-less accounts for the rest of the request instead of retrying each one. On by default (safe: no egress IP change, only reduces latency/cooldown risk on shared-egress accounts). Disable to restore immediate propagation on the first proxy-less throw.
PROXY_SKIP_RECENTLY_FAILED	boolean	false		Proxy pools and the per-account rotation of opencode stop re-serving a proxy that just failed (refused TCP probe, or a 429 received through it) for a per-process period that doubles on each repeat, up to a cap. No proxy status is written; with every candidate set aside the choice is unchanged. Off by default.
PROXY_POOL_EGRESS_OBSERVATION	boolean	false		Show, under a proxy pool in the dashboard, how many observed egress IPs served its members over the last 24 h and how many connections used them. Read-only, computed from the proxy log, never used for routing. Off by default.
OPENCODE_RESPONSES_STALL_ROTATION	boolean	false		For the OpenCode executor, watch the first body byte of a streamed Responses reply (window: RESPONSES_FIRST_BYTE_TIMEOUT_MS, default 15000). A 2xx Responses stream that stays silent past the window is treated as stalled: the account is cooled down and the request rotates to the next account once; a second stall fails fast. Off by default: stalled streams keep today's wait until the stream readiness timeout.
OPENCODE_USER_BLOCKED_ROTATION	boolean	false		OpenCode executor: on a 403/451 carrying a user_blocked refusal (not geo, not a Cloudflare fingerprint rejection), cool the refused account down and rotate to the next account at most once per request; a second refusal is returned as-is, without a success mark. Off by default: routing around an upstream user block can look like evasion and spread the flag across the fleet.
OPENCODE_TRANSIENT_FAILOVER_BACKOFF	boolean	false		OpenCode rotation: after two consecutive transient upstream failures (5xx or an empty 400), pause before the next account — 1.5s doubling per further failure, capped at 6s per pause and 10s per request, skipped on client disconnect; the failed body is released before waiting. Off by default: failover stays immediate.
MITM_DISABLE_TLS_VERIFY	boolean	false	✓	Disable TLS certificate verification for the MITM proxy. Danger.
OMNIROUTE_ALLOW_PRIVATE_PROVIDER_URLS	boolean	false		Allow provider URLs pointing to private/internal networks.
OMNIROUTE_ALLOW_LOCAL_PROVIDER_URLS	boolean	true		Allow adding/validating providers on local/private addresses (127.0.0.1, localhost, LAN). On by default (local-first); disable for strict public-only blocking. Cloud-metadata stays blocked.
ENABLE_CC_COMPATIBLE_PROVIDER	boolean	false	✓	Enable Claude Code compatible provider mode.

Policies (5)

Key	Type	Default	Description
TOOL_POLICY_MODE	enum	disabled	Tool-use policy enforcement mode. Values: disabled, warn, block.
RATE_LIMIT_AUTO_ENABLE	boolean	false	Automatically enable rate limiting based on usage patterns.
DISABLE_CONTEXT_WINDOW_CHECKS	boolean	false	Skip OmniRoute's local context-window / max-input-token check for direct single-model requests. Upstream limits still apply.
CAPABILITY_FILTER_ENABLED	boolean	false	Reject requests before dispatch when the target model lacks required capabilities (vision, tools, structured output, context window). Protects direct single-provider requests that bypass the combo-layer compatibility filter.
RADAR_ENABLED	boolean	false	Enable the OmniRoute Radar module (catalog feed screens and sync). Off by default; enabling only unlocks the UI — data sync remains a separate opt-in.

Runtime (29)

Key	Type	Default	Restart	Description
UNIVERSAL_CONTEXT_HANDOFF_ENABLED	boolean	true		Generate and inject conversation summaries when combo routing switches models. Disable to treat model switches independently and prevent background handoff requests for all existing and future combos.
RESPONSES_PASSTHROUGH_DROP_COMMENTARY	boolean	true		Drop internal commentary-phase output items from Responses API passthrough streams before forwarding to clients. Disable to receive raw upstream commentary.
OMNIROUTE_MCP_ENFORCE_SCOPES	boolean	true		Enforce scope restrictions on MCP tool access.
OMNIROUTE_MCP_COMPRESS_DESCRIPTIONS	boolean	false		Compress MCP tool descriptions to reduce token usage.
OMNIROUTE_ENABLE_RUNTIME_BACKGROUND_TASKS	boolean	false		Enable background task processing at runtime.
OMNIROUTE_DISABLE_BACKGROUND_SERVICES	boolean	false	✓	Disable all background services (quota refresh, sync, etc).
OMNIROUTE_RTK_TRUST_PROJECT_FILTERS	boolean	false		Trust project-level RTK filters without validation.
OMNIROUTE_ENABLE_LIVE_WS	boolean	true	✓	Start the real-time dashboard WebSocket server on import (port 20132 by default).
OMNIROUTE_CODEX_WS_ENABLED	boolean	true		Allow Codex to use the Responses-over-WebSocket transport. When off, Codex falls back to HTTP Responses.
OMNIROUTE_CODEX_APP_SERVER_ENABLED	boolean	true		Allow Codex to use the local app-server WebSocket JSON-RPC transport (codexTransport=app-server). When off, connections opted into app-server fall back to Codex's other transports.
OMNIROUTE_EMERGENCY_FALLBACK	boolean	true		Route budget-exhausted requests to the emergency free fallback provider/model. (See Emergency Budget Fallback below.)
STREAM_RECOVERY_ENABLED	boolean	false		Enable transparent early retry for truncated upstream SSE streams before any response bytes reach the client.
STREAM_RECOVERY_MIDSTREAM_ENABLED	boolean	false		Allow stream recovery to re-request and stitch a response after bytes have already reached the client.
STREAM_RECOVERY_TOOLCALL_ORDER_FIX	boolean	false		Make mid-stream continuation tool-call safe: never resume a cut stream once a tool call was emitted (in flight or already finished with finish_reason tool_calls), and close after one empty continuation instead of spending the whole budget. Off: release behavior.
STREAM_EARLY_EOF_SIBLING_FAILOVER_ENABLED	boolean	false		Fail over once to a sibling connection when an SSE stream closes before emitting any useful frame and the bounded same-connection retry is spent; with no usable sibling the original STREAM_EARLY_EOF 502 is returned. Off by default: early-EOF stays terminal after the same-connection retry.
MODEL_CATALOG_INCLUDE_NAMES	boolean	true		Include display-friendly name fields in /v1/models responses. Disable for clients that expect model IDs only.
MODELS_CATALOG_PREFIX_MODE	enum	dual		Controls how model IDs are prefixed in /v1/models. 'dual' (default) emits both alias and canonical provider-id prefixes for backward compatibility. 'alias' emits only the short alias prefix (e.g. ds-web/model, not deepseek-web/model). 'canonical' emits only the full provider-id prefix. Values: dual, alias, canonical.
ARENA_ELO_SYNC_ENABLED	boolean	true		Enable periodic Arena AI leaderboard ELO sync for model intelligence rankings.
EXPOSE_CC_DISCOVERY_ALIASES	boolean	false		Advertise claude/<provider>/<model> mirror ids on /v1/models so Claude Code gateway model discovery lists non-Claude models. Global level of the three-level gate (env wins over the dashboard override). See Claude Code configuration.
NO_THINKING_ALIAS_ENABLED	boolean	true		Master switch for the no-think// gateway aliases. On (default): /v1/models advertises a no-thinking variant for every eligible thinking-capable Claude model, and a no-think/ id sent on a request resolves back to the real model with reasoning suppressed. Off: no variants are advertised and a no-think/ id is treated like any other unknown model id. The per-model ModelSpec.noThinkingAlias opt-in/opt-out still applies while this is on.
OMNIROUTE_DISABLE_THINKING_LEVEL_VARIANTS	boolean	false		Disable the generation of thinking level variants (e.g. -low, -medium, -high) in the /v1/models catalog.
OMNIROUTE_CHAT_VIRTUAL_LANES	boolean	false	✓	Enable per-tenant adaptive virtual admission lanes for provider dispatch (#9654): one tenant's burst no longer 503s another. The OMNIROUTE_CHAT_VIRTUAL_LANES env var wins over this dashboard override; changes take effect at server restart.
EXPOSE_FUNCTIONAL_GATEWAY_MIRRORS	boolean	false		Advertise / mirror ids on /v1/models for models whose canonical owner has no active credential but a passthrough gateway with an active credential routes them. Warning: adds catalog entries for all clients when enabled globally.
NEWAPI_AGGREGATOR_BALANCE	boolean	false		Enable balance detection for New-API / One-API / Sub2API aggregator compatible nodes. When enabled, compatible nodes with the aggregator flag set will report their balance in the dashboard and quota-preflight routing.
SERVER_OWNED_TOOL_LOOP_ENABLED	boolean	false		Continue non-streaming server-owned tool calls until the model returns a client-usable response.
SEARCH_STATS_HIDE_DELETED_CONNECTIONS	boolean	false		Search stats and recent searches only count providers that still have a live connection (keyless providers such as duckduckgo-free always count). Off keeps every retained search row with a provider id.
FREE_BADGE_REQUIRES_PROVIDER_FREE_TIER	boolean	false		Dashboard provider pages: show the Free badge only on signals the provider honors — drops the display-name heuristic, non-boolean free fields and :free suffixes on registered providers without a documented free tier. Off keeps the historical badge rule.
RETRY_AFTER_PROVENANCE_ENABLED	boolean	false		On aggregated 429/503 unavailable responses, omit Retry-After when no concrete future retry time is known (instead of a synthetic 1s), add error.retry_after_provenance (signal | none), and let combo drain paths read prose retry hints from JSON and plain-text upstream bodies. The field only appears on responses built by unavailableResponse(); other 429/503 bodies are unchanged.
PROTECTED_PRIORITY_INFRA_502_ENABLED	boolean	false		When a priority combo target marked fallback-only-on-quota-exhaustion stops the combo for a cause that is provably not quota (provider circuit breaker open, predictive latency skip), answer 502 instead of the quota-looking 503. Lockout, cooldown, unavailable, exhaustion and concurrency-cap stops keep 503.

CLI (5)

Key	Type	Default	Restart	Description
CLI_COMPAT_ALL	boolean	false	✓	Enable compatibility mode for all CLI clients.
MODEL_ALIAS_COMPAT_ENABLED	boolean	false		Enable model alias compatibility layer.
PRICING_SYNC_ENABLED	boolean	false		Enable automatic pricing data synchronization (also requires the PRICING_SYNC_ENABLED environment variable).
OMNIROUTE_AUTO_SYNC_CODEX_PROFILES	boolean	false		After a provider model sync, automatically (re)write ~/.codex/*.config.toml profile files from the live catalog. Never changes the active/default Codex config. Off by default.
OMNIROUTE_AUTO_SYNC_CLAUDE_PROFILES	boolean	false		After a provider model sync, automatically (re)write ~/.claude/profiles//settings.json Claude Code profiles from the live catalog. Never changes the active/default Claude config. Off by default.

Health (4)

Key	Type	Default	Description
OMNIROUTE_DISABLE_LOCAL_HEALTHCHECK	boolean	false	Disable the local instance health check endpoint.
OMNIROUTE_DISABLE_TOKEN_HEALTHCHECK	boolean	false	Disable the token validation health check.
SKILLS_SANDBOX_NETWORK_ENABLED	boolean	false	Enable network access in the skills sandbox environment.
PROXY_HEALTH_BLOCKED_RESETS_STREAK	boolean	false	In the proxy health sweep, a probe the target refused (401/403/429) resets the proxy's consecutive-failure streak. Off by default: a refusal stays neutral (#10654). A 5xx stays inconclusive either way; a refusal never removes, disables or re-activates a proxy.

Note

INPUT_SANITIZER_BLOCK_THRESHOLD and its legacy alias INJECTION_GUARD_BLOCK_THRESHOLD tune the block mode of INJECTION_GUARD_MODE, but they are plain environment variables read by src/shared/utils/injectionSeverity.ts, not feature flags: they have no DB override and no dashboard toggle. See ENVIRONMENT.md.

Note

The Restart column marks flags with requiresRestart: true — the value is persisted instantly but only takes effect after the process reloads. Enum flags reject any value outside their allowed set (validated server-side in both setFeatureFlagOverride() and the REST PUT handler).

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Toggling Flags

Dashboard

Navigate to Dashboard → Settings → Feature Flags (/dashboard/settings/feature-flags). The grid (src/app/(dashboard)/dashboard/settings/components/FeatureFlagsGrid.tsx) supports:

• Search by key or description, and filter by category (plus a synthetic Requires Restart view).
• A toggle for boolean flags and a dropdown for enum flags (src/app/(dashboard)/dashboard/settings/components/FeatureFlagCard.tsx).
• A source badge per flag — DB, ENV, or DEF — showing where the effective value came from.
• A Reset button (shown only for DB-sourced flags) to drop the override, and a Reset All Overrides button at the bottom.
• A Restart Server banner when a requiresRestart flag is changed.

REST API

All operations go through a single route: src/app/api/settings/feature-flags/route.ts. Every method requires an authenticated dashboard session (401 otherwise).

GET /api/settings/feature-flags

Returns every flag with its effective value, source, and a summary.

{
  "flags": [
    {
      "key": "REQUIRE_API_KEY",
      "label": "Require API Key",
      "description": "Require an API key for all incoming requests",
      "category": "security",
      "type": "boolean",
      "enumValues": null,
      "defaultValue": "false",
      "effectiveValue": "false",
      "source": "default", // "db" | "env" | "default"
      "requiresRestart": false,
      "warningLevel": "caution",
    },
    // ... all 67 flags
  ],
  "summary": {
    "total": 56,
    "active": 0,
    "inactive": 0,
    "overriddenByDb": 0,
    "overriddenByEnv": 0,
  },
}

PUT /api/settings/feature-flags

Set or remove a single override. Body: { key: string; value?: string }. Omitting value removes the override (restoring env / default).

# Set a DB override
curl -X PUT http://localhost:20128/api/settings/feature-flags \
  -H "Content-Type: application/json" \
  -d '{"key":"REQUIRE_API_KEY","value":"true"}'

# Remove the override (no "value")
curl -X PUT http://localhost:20128/api/settings/feature-flags \
  -H "Content-Type: application/json" \
  -d '{"key":"REQUIRE_API_KEY"}'

The response echoes the new effectiveValue/source, the previousValue/ previousSource, and requiresRestart. Unknown keys and out-of-range enum values are rejected with 400.

DELETE /api/settings/feature-flags

Clears all DB overrides at once, restoring every flag to its env / default value. Returns { cleared: <count>, message: "..." }.

Note

Flags with requiresRestart: true only take effect after a process reload. The dashboard's restart flow calls POST /api/restart and then polls GET /api/health/ping until the server is back up.

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Emergency Budget Fallback

OMNIROUTE_EMERGENCY_FALLBACK (category runtime, default true) controls the emergency free-fallback path in open-sse/services/emergencyFallback.ts. When enabled, requests that exhaust their budget are routed to a free fallback provider/model instead of failing outright. Set it to false (or 0) — via the dashboard toggle, a DB override, or the OMNIROUTE_EMERGENCY_FALLBACK environment variable — to disable the behavior and let budget-exhausted requests fail. (Surfaced as a dashboard toggle in PRs #3741 / #3752.)

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See Also

• Environment Variables Reference — most flags have a same-named environment variable documented there (the DB override takes precedence over it).
• src/shared/constants/featureFlagDefinitions.ts — source of truth for every flag.
• src/shared/utils/featureFlags.ts — resolution logic (resolveFeatureFlag, isFeatureFlagEnabled, resolveAllFeatureFlags).
• src/lib/db/featureFlags.ts — DB override persistence in the feature_flags namespace of the key_value table.