Workflow Runner

Execute a workflow YAML file step-by-step. Each step runs one skill, by default in a fresh subagent (claude type, or the step's agent:), or in this conversation when the step sets inline: true. The runner captures each step's output and threads it forward through ${{ steps.<id>.output }} interpolation. The full format is specified in references/format.md — read that file first if the user's workflow uses features that aren't in the example below.

This skill writes files. It writes a workflow-output.json and per-step output captures inside $WORKFLOW_DIR (default ./.workflow-runs/<name>-<timestamp>/). It does not modify the workflow definition itself.

Task Tracking