# Hatchet Documentation

> Hatchet is a distributed task queue and workflow engine for modern applications. It provides durable execution, concurrency control, rate limiting, and observability for background tasks and workflows in Python, TypeScript, and Go.

## Guide

- [🪓 What is Hatchet?](https://docs.hatchet.run/v1/index)
- [Quickstart](https://docs.hatchet.run/v1/quickstart)
- [Using Coding Agents](https://docs.hatchet.run/v1/using-coding-agents)
- [Tasks](https://docs.hatchet.run/v1/tasks)
- [Workers](https://docs.hatchet.run/v1/workers)
- [Running Tasks](https://docs.hatchet.run/v1/running-your-task)
- [Durable Execution](https://docs.hatchet.run/v1/durable-execution)
- [Scheduled Runs](https://docs.hatchet.run/v1/scheduled-runs)
- [Cron Runs](https://docs.hatchet.run/v1/cron-runs)
- [Bulk Triggering](https://docs.hatchet.run/v1/bulk-run)
- [Events](https://docs.hatchet.run/v1/events)
- [Webhooks](https://docs.hatchet.run/v1/webhooks)
- [Inter-Service Triggering](https://docs.hatchet.run/v1/inter-service-triggering)
- [Retry Policies](https://docs.hatchet.run/v1/retry-policies)
- [Timeouts](https://docs.hatchet.run/v1/timeouts)
- [Cancellation](https://docs.hatchet.run/v1/cancellation)
- [Bulk Retries & Cancellations](https://docs.hatchet.run/v1/bulk-retries-and-cancellations)
- [Concurrency](https://docs.hatchet.run/v1/concurrency)
- [Rate Limits](https://docs.hatchet.run/v1/rate-limits)
- [Priority](https://docs.hatchet.run/v1/priority)
- [Idempotency](https://docs.hatchet.run/v1/idempotency)
- [Batch Tasks](https://docs.hatchet.run/v1/batch-tasks)
- [Durable Tasks](https://docs.hatchet.run/v1/durable-tasks)
- [Child Spawning](https://docs.hatchet.run/v1/child-spawning)
- [Sleeps](https://docs.hatchet.run/v1/durable-sleep)
- [Event Waits](https://docs.hatchet.run/v1/durable-event-waits)
- [Task Eviction](https://docs.hatchet.run/v1/task-eviction)
- [DAGs as Durable Workflows](https://docs.hatchet.run/v1/directed-acyclic-graphs)
- [Running with Docker](https://docs.hatchet.run/v1/docker)
- [Autoscaling Workers](https://docs.hatchet.run/v1/autoscaling-workers)
- [Sticky Assignment](https://docs.hatchet.run/v1/advanced-assignment/sticky-assignment)
- [Worker Affinity](https://docs.hatchet.run/v1/advanced-assignment/worker-affinity)
- [Task Slot Cost](https://docs.hatchet.run/v1/advanced-assignment/slot-cost)
- [Manual Slot Release](https://docs.hatchet.run/v1/advanced-assignment/manual-slot-release)
- [Logging](https://docs.hatchet.run/v1/logging)
- [OpenTelemetry](https://docs.hatchet.run/v1/opentelemetry)
- [Worker Health Checks](https://docs.hatchet.run/v1/worker-healthchecks)
- [Prometheus Metrics](https://docs.hatchet.run/v1/prometheus-metrics)
- [Additional Metadata](https://docs.hatchet.run/v1/additional-metadata)
- [Middleware](https://docs.hatchet.run/v1/middleware)
- [Streaming](https://docs.hatchet.run/v1/streaming)
- [Environments](https://docs.hatchet.run/v1/environments)
- [Troubleshooting Workers](https://docs.hatchet.run/v1/troubleshooting/index)
- [SSO](https://docs.hatchet.run/v1/single-sign-on)
- [User Groups](https://docs.hatchet.run/v1/user-groups)
- [Architecture & Guarantees](https://docs.hatchet.run/v1/architecture-and-guarantees)
- [Cloud vs OSS](https://docs.hatchet.run/v1/cloud-vs-oss)
- [About](https://docs.hatchet.run/v1/security/index)
- [Audit Logs](https://docs.hatchet.run/v1/security/audit-logs)
- [Region Availability](https://docs.hatchet.run/v1/region-availability)
- [Uptime](https://docs.hatchet.run/v1/uptime)
- [Developer Experience](https://docs.hatchet.run/v1/developer-experience)
- [From Celery to Hatchet](https://docs.hatchet.run/v1/from-celery-to-hatchet)
- [Frequently Asked Questions](https://docs.hatchet.run/v1/faq)
## Cookbooks

- [Overview](https://docs.hatchet.run/cookbooks/index)
- [Stripe](https://docs.hatchet.run/cookbooks/webhooks-stripe)
- [GitHub](https://docs.hatchet.run/cookbooks/webhooks-github)
- [Slack](https://docs.hatchet.run/cookbooks/webhooks-slack)
- [Support Agent](https://docs.hatchet.run/cookbooks/workflow-support-agent)
- [Welcome Email](https://docs.hatchet.run/cookbooks/welcome-email)
- [Durable Tasks vs DAGs](https://docs.hatchet.run/cookbooks/durable-tasks-vs-dags)
- [PDF Pipeline](https://docs.hatchet.run/cookbooks/pdf-pipeline)
- [S3 Processing Pipeline](https://docs.hatchet.run/cookbooks/workflow-aws-s3)
- [Hatchet Agent Tools](https://docs.hatchet.run/cookbooks/hatchet-and-mcp)
- [Claude Agent SDK](https://docs.hatchet.run/cookbooks/hatchet-claude-agent-sdk-trusted-env)
- [OpenAI Agents SDK](https://docs.hatchet.run/cookbooks/hatchet-openai-agents-sdk-trusted-env)
## Self-Hosting

- [Introduction](https://docs.hatchet.run/self-hosting/index)
- [Hatchet Lite](https://docs.hatchet.run/self-hosting/hatchet-lite)
- [Docker Compose](https://docs.hatchet.run/self-hosting/docker-compose)
- [Quickstart](https://docs.hatchet.run/self-hosting/kubernetes-quickstart)
- [Networking](https://docs.hatchet.run/self-hosting/networking)
- [Configuring the Helm Chart](https://docs.hatchet.run/self-hosting/kubernetes-helm-configuration)
- [Setting up an External Database](https://docs.hatchet.run/self-hosting/kubernetes-external-database)
- [High Availability](https://docs.hatchet.run/self-hosting/high-availability)
- [Engine Configuration Options](https://docs.hatchet.run/self-hosting/configuration-options)
- [Using PgBouncer](https://docs.hatchet.run/self-hosting/using-pgbouncer)
- [Prometheus Metrics](https://docs.hatchet.run/self-hosting/prometheus-metrics)
- [Internal OpenTelemetry Traces](https://docs.hatchet.run/self-hosting/opentelemetry)
- [Worker Configuration Options](https://docs.hatchet.run/self-hosting/worker-configuration-options)
- [Upgrading and Downgrading](https://docs.hatchet.run/self-hosting/upgrading-downgrading)
- [Downgrading DB Schema Manually](https://docs.hatchet.run/self-hosting/downgrading-db-schema-manually)
- [Benchmarking](https://docs.hatchet.run/self-hosting/benchmarking)
- [Data Retention](https://docs.hatchet.run/self-hosting/data-retention)
- [Improving Performance](https://docs.hatchet.run/self-hosting/improving-performance)
- [Read Replicas](https://docs.hatchet.run/self-hosting/read-replicas)
- [Trace Sampling](https://docs.hatchet.run/self-hosting/sampling)
- [SMTP Server](https://docs.hatchet.run/self-hosting/smtp-server)
## Reference

- [Overview](https://docs.hatchet.run/reference/changelog/index)
- [Platform & Go SDK](https://docs.hatchet.run/reference/changelog/platform)
- [Python SDK](https://docs.hatchet.run/reference/changelog/python)
- [TypeScript SDK](https://docs.hatchet.run/reference/changelog/typescript)
- [Ruby SDK](https://docs.hatchet.run/reference/changelog/ruby)
- [Client](https://docs.hatchet.run/reference/python/client)
- [Context](https://docs.hatchet.run/reference/python/context)
- [Cron](https://docs.hatchet.run/reference/python/feature-clients/cron)
- [Filters](https://docs.hatchet.run/reference/python/feature-clients/filters)
- [Logs](https://docs.hatchet.run/reference/python/feature-clients/logs)
- [Metrics](https://docs.hatchet.run/reference/python/feature-clients/metrics)
- [Rate Limits](https://docs.hatchet.run/reference/python/feature-clients/rate_limits)
- [Runs](https://docs.hatchet.run/reference/python/feature-clients/runs)
- [Scheduled](https://docs.hatchet.run/reference/python/feature-clients/scheduled)
- [Webhooks](https://docs.hatchet.run/reference/python/feature-clients/webhooks)
- [Workers](https://docs.hatchet.run/reference/python/feature-clients/workers)
- [Workflows](https://docs.hatchet.run/reference/python/feature-clients/workflows)
- [Runnables](https://docs.hatchet.run/reference/python/runnables)
- [Asyncio](https://docs.hatchet.run/reference/python/asyncio)
- [Pydantic](https://docs.hatchet.run/reference/python/pydantic)
- [Lifespans](https://docs.hatchet.run/reference/python/lifespans)
- [Dependency Injection](https://docs.hatchet.run/reference/python/dependency-injection)
- [Dataclass Support](https://docs.hatchet.run/reference/python/dataclasses)
- [Client](https://docs.hatchet.run/reference/typescript/client)
- [Context](https://docs.hatchet.run/reference/typescript/Context)
- [Crons](https://docs.hatchet.run/reference/typescript/feature-clients/crons)
- [Filters](https://docs.hatchet.run/reference/typescript/feature-clients/filters)
- [Logs](https://docs.hatchet.run/reference/typescript/feature-clients/logs)
- [Metrics](https://docs.hatchet.run/reference/typescript/feature-clients/metrics)
- [Ratelimits](https://docs.hatchet.run/reference/typescript/feature-clients/ratelimits)
- [Runs](https://docs.hatchet.run/reference/typescript/feature-clients/runs)
- [Schedules](https://docs.hatchet.run/reference/typescript/feature-clients/schedules)
- [Webhooks](https://docs.hatchet.run/reference/typescript/feature-clients/webhooks)
- [Workers](https://docs.hatchet.run/reference/typescript/feature-clients/workers)
- [Workflows](https://docs.hatchet.run/reference/typescript/feature-clients/workflows)
- [Runnables](https://docs.hatchet.run/reference/typescript/Runnables)
- [Setup & Installation](https://docs.hatchet.run/reference/cli/index)
- [Profiles](https://docs.hatchet.run/reference/cli/profiles)
- [Running Hatchet Locally](https://docs.hatchet.run/reference/cli/running-hatchet-locally)
- [Generating Quickstart Projects](https://docs.hatchet.run/reference/cli/quickstarts)
- [Running Workers Locally](https://docs.hatchet.run/reference/cli/running-workers-locally)
- [Triggering Workflows](https://docs.hatchet.run/reference/cli/triggering-workflows)
- [Using the Hatchet TUI](https://docs.hatchet.run/reference/cli/tui)
## Contributing

- [Contributing](https://docs.hatchet.run/contributing/index)
- [GitHub App Setup](https://docs.hatchet.run/contributing/github-app-setup)
- [SDKs](https://docs.hatchet.run/contributing/sdks)