Prompts · PromptEveryday codingReviewed

prp-implement

Execute an implementation plan with rigorous validation loops

Kind: Prompt
Works with: Claude Code, Codex
Source: affaan-m/ECC @ d3b8a3e90890
Path: commands/prp-implement.md
License: MIT
Jobs: Implementation, Planning, Automation

InstallCopy it from the source repository, or sign in and let the assistant adapt it for your project.

> Adapted from PRPs-agentic-eng by Wirasm. Part of the PRP workflow series.

# PRP Implement

Execute a plan file step-by-step with continuous validation. Every change is verified immediately — never accumulate broken state.

**Core Philosophy**: Validation loops catch mistakes early. Run checks after every change. Fix issues immediately.

**Golden Rule**: If a validation fails, fix it before moving on. Never accumulate broken state.

---

## Phase 0 — DETECT

### Package Manager Detection

| File Exists | Package Manager | Runner |
|---|---|---|
| `bun.lockb` | bun | `bun run` |
| `pnpm-lock.yaml` | pnpm | `pnpm run` |
| `yarn.lock` | yarn | `yarn` |
| `package-lock.json` | npm | `npm run` |
| `pyproject.toml` or `requirements.txt` | uv / pip | `uv run` or `python -m` |
| `Cargo.toml` | cargo | `cargo` |
| `go.mod` | go | `go` |

### Validation Scripts

Check `package.json` (or equivalent) for available scripts:

```bash
# For Node.js projects
cat package.json | grep -A 20 '"scripts"'
```

Note available commands for: type-check, lint, test, build.

---

## Phase 1 — LOAD

Read the plan file:

```bash
cat "$ARGUMENTS"
```

Extract these sections from the plan:
…