Skip to content

Workflows That Write Code

CodingAgentStep is an autonomous code-generation step type for workflows. Docker-sandboxed, multi-language, and fully auditable — it clones your repo, writes code, runs tests, and produces a pull request with a clear diff.

How It Works

CodingAgentStep in the workflow builder

Define a natural-language task, pick a model (Claude Sonnet 4.6 recommended), and configure sandbox settings. The agent clones your repo, writes code, runs tests, and creates a pull request — all inside a single workflow step.

  • Natural-language task description
  • Model selection per step
  • Docker sandbox isolation
  • Automatic PR creation

Docker Sandbox

Isolated execution in every run

Every execution runs in an isolated Docker container. No access to host filesystem or network. Configurable memory (up to 2 GB), CPU time limits, and execution timeout. All file changes are captured and committed.

  • Isolated filesystem per execution
  • No network access to host
  • Configurable resource limits
  • Full audit trail of changes

Real-World Use Cases

From test generation to framework migrations

Auto-generate unit tests for untested modules, create documentation from code, migrate between frameworks, generate boilerplate from specs. Each execution produces a PR with a clear diff.

  • Test generation and coverage improvement
  • Documentation sync with code changes
  • Framework and dependency upgrades
  • Boilerplate generation from specifications

How It Works

Three steps to autonomous code generation

1

Add CodingAgentStep

Add a coding agent step to any workflow. Describe the task in natural language — "write unit tests for the auth module" or "migrate the API client from v2 to v3."

2

Configure sandbox

Set the model, memory limits, timeout, and target repository. The agent spins up a Docker container, clones the repo, and begins execution in full isolation.

3

Review output

The agent produces a pull request with code changes, test results, and execution traces. Review the diff, check the test output, and merge when ready.

Plans

Coding Agent availability by plan

CodingAgentStep is available on Pro and Enterprise plans with scalable execution limits.

Starter (Free)

  • CodingAgentStep not available
  • Upgrade to Pro to unlock

Pro / Team

  • CodingAgentStep in workflows
  • Docker sandbox isolation
  • Automatic PR generation
  • 10 executions per day

Enterprise

  • Unlimited executions
  • Custom Docker images
  • VPC agent support
  • Everything in Pro / Team

Start building workflows that write code

Add CodingAgentStep to your workflows, let the agent clone, code, test, and open a pull request. Start free today.