Config & Environment

Core runtime

Variable	Required	Purpose
SLACK_SIGNING_SECRET	Yes	Verifies Slack request signatures.
SLACK_BOT_TOKEN or SLACK_BOT_USER_TOKEN	Yes	Posts thread replies and calls Slack APIs.
REDIS_URL	Yes	Queue and runtime state storage.
JUNIOR_BOT_NAME	No	Bot display/config naming.
AI_MODEL	No	Primary model selection override.
AI_FAST_MODEL	No	Faster model for lightweight tasks.
JUNIOR_BASE_URL	No	Canonical base URL for callback/auth URL generation.
AI_GATEWAY_API_KEY	No	AI gateway auth if used in your setup.

Build-time snapshot warmup

If your build command runs junior snapshot create:

• REDIS_URL must be available during build.
• VERCEL_OIDC_TOKEN must be available during build (via Vercel OIDC settings).

GitHub plugin

Variable	Required	Purpose
GITHUB_APP_ID	Yes	GitHub App identity.
GITHUB_APP_PRIVATE_KEY	Yes	GitHub App signing key.
GITHUB_INSTALLATION_ID	Yes	Repository/org installation target.

Sentry plugin

Variable	Required	Purpose
SENTRY_CLIENT_ID	Yes	OAuth client ID.
SENTRY_CLIENT_SECRET	Yes	OAuth client secret.

Verification

• Validate required variables exist in deployment environment.
• Redeploy after variable changes.
• Run one end-to-end Slack thread action per enabled integration.

Next step

Use Runtime Commands to verify credentialed workflows after env changes, then monitor with Observability.