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Theodore LiandClaude Opus 4.8
928bd911f3
* fix(webhook): don't fault trigger run on user/workflow execution errors
Webhook-triggered executions re-threw every error, so trigger.dev marked
the run failed and fired #eng-errors alerts. The vast majority of these are
user-caused workflow failures (missing required fields, invalid field
references, bad URLs, provider 4xx, expired models, low credit) that are
already recorded in the execution logs.
Distinguish fault vs error in executeWebhookJobInternal: when the failure
was finalized by core (the workflow ran and its failure is logged), complete
the run with { success: false } instead of throwing. Errors that were not
finalized came from the webhook pipeline itself and still re-throw to fault
the run. Await waitForPostExecution first so the finalized flag is reliable.
The error is still recorded on the run's OTel span via recordException (no
ERROR status, so the run isn't faulted) and remains in the execution logs,
so these stay investigable in Tempo/Loki without false alerts.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(schedule): don't fault trigger run on error-recovery failures
The schedule task already treats workflow-execution failures as recorded
errors rather than trigger faults, but the outermost catch's own recovery
code (the infra-retry and releaseClaim calls) was unguarded. A secondary DB
blip while releasing the claim re-threw and escaped run(), faulting the
trigger.dev run and firing an alert — a double-fault during cleanup.
Wrap the recovery path in a try/catch: log and record the exception on the
span without re-throwing. The claim expires on its TTL and the next tick
re-claims the schedule, so swallowing the cleanup failure is safe.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* test(webhook): assert waitForPostExecution runs on the non-finalized path
Guards the race fix on the infra-error path so a future refactor can't
silently drop the await. Addresses Greptile review feedback.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The open-source platform to build AI agents and run your agentic workforce. Connect 1,000+ integrations and LLMs to orchestrate agentic workflows.
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Note
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Options
| Flag | Description |
|---|---|
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Port to run Sim on (default 3000) |
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Skip pulling latest Docker images |
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git clone https://github.com/simstudioai/sim.git && cd sim
docker compose -f docker-compose.prod.yml up -d
Sim also supports local models via Ollama and vLLM — see the Docker self-hosting docs for setup details.
Self-hosted: Manual Setup
Requirements: Bun, Node.js v20+, PostgreSQL 12+ with pgvector
- Clone and install:
git clone https://github.com/simstudioai/sim.git
cd sim
bun install
bun run prepare # Set up pre-commit hooks
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docker run --name simstudio-db -e POSTGRES_PASSWORD=your_password -e POSTGRES_DB=simstudio -p 5432:5432 -d pgvector/pgvector:pg17
Or install manually via the pgvector guide.
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cp apps/sim/.env.example apps/sim/.env
# Create your secrets
perl -i -pe "s/your_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_internal_api_secret/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_api_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
# DB configs for migration
cp packages/db/.env.example packages/db/.env
# Edit both .env files to set DATABASE_URL="postgresql://postgres:your_password@localhost:5432/simstudio"
- Run migrations:
cd packages/db && bun run db:migrate
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bun run dev:full # Starts Next.js app and realtime socket server
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Environment Variables
See the environment variables reference for the full list, or apps/sim/.env.example for defaults.
Tech Stack
- Framework: Next.js (App Router)
- Runtime: Bun
- Database: PostgreSQL with Drizzle ORM
- Authentication: Better Auth
- Schema Validation: Zod
- UI: Shadcn, Tailwind CSS
- Streaming Markdown: Streamdown
- State Management: Zustand, TanStack Query
- Flow Editor: ReactFlow
- Docs: Fumadocs
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- Background Jobs: Trigger.dev
- Remote Code Execution: E2B
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