# Phase Execution Controller

> Executes completed phases, validates runtime behavior, and controls safe transition to the next phase.

- Skill: `majiayu000/phase-execution-controller` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add majiayu000/phase-execution-controller`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/phase-execution-controller/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/phase-execution-controller

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# Phase Execution & Transition Controller

## Purpose
This skill ensures phases are not just written, but actually executed and validated before moving forward.

## Mandatory Flow After Phase Completion
1. Run the phase implementation
2. Validate expected behavior
3. Report execution results
4. Ask for explicit approval before moving to the next phase

## Execution Rules

### If Phase is Runnable (CLI / App / Service)
- Execute using appropriate command
- Capture output and errors
- Validate against spec acceptance criteria

### If Execution Passes
- Mark phase as ✅ VERIFIED
- Ask user:
  "Phase verified successfully. Move to next phase?"

### If Execution Fails
- Report failure clearly
- Propose fixes via spec updates
- Never advance phase without passing execution

## Safety Rules
- Never auto-advance phases
- Explicit user confirmation required
- Never skip execution step

This skill acts as the phase gatekeeper.