Crewplane: open-source tool that runs coding-agent workflows defined in Markdown
CarsonBuilds · reddit · 2026-11-11
Developer CarsonBuilds open-sourced Crewplane (Apache-2.0), built on a simple idea: you describe the process in Markdown with YAML dependencies, and the runner dispatches each task to your existing coding CLIs (claude code, codex, etc.) instead of imposing a planner-executor split.
Key design points
- Composable workflows: an "investigate module → produce design → implement" pipeline can keep the investigation step as its own reusable workflow, imported by others with different inputs — update once, everything stays in sync
- Saves rendered prompts, outputs, and run state; a failed or cancelled run can reuse completed results whose saved state still passes validation, with a dry run previewing exactly what would be reused
- Ships a built-in Mock CLI so you can learn the syntax and composition with zero model calls or cost
The author is seeking feedback on GitHub.
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