# subagent-plan-dev

Executes existing implementation plans through scoped subagents. Coordinates task delegation, independent reviews, and resumes interrupted runs.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 837 installs · ★ 6
- Author: sentimony
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/sentimony/skills/tree/HEAD/plugins/devflow/skills/subagent-plan-dev/SKILL.md
- Updated: 2026-10-24
- HTML: https://affpapa.org/en/nevibecode/skills/subagent-plan-dev

## What it does

This skill coordinates plan execution across three distinct roles: controller, implementer, and reviewer. The implementer writes code for a single assigned task, while the reviewer inspects quality and regression risks. The core operating rule is strict. The controller never accepts any task based solely on the implementer's report, requiring its own verification pass.

Pre-flight checks validate plan specificity and inspect test tooling before any dispatch. The controller models task dependencies using keys like `depends_on`, `touches`, and `shared_interfaces`, while mapping risk levels from `LOW` to `HIGH`. Execution state is tracked inside `.sdd/<plan-id>/state.json` across six statuses, from `pending` to `accepted` or `failed`. Without a concrete plan, execution halts immediately: vague briefs get rejected to prevent unguided agent assumptions.

Interrupted runs resume safely from `.sdd/`. The controller checks `state.json` against `git log` and the working tree without overriding the original `base_sha`. Sequential execution remains the default mode. Progress reports as a single concise status line whenever a task finishes.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add sentimony/skills --skill subagent-plan-dev -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/subagent-plan-dev/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/subagent-plan-dev/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add sentimony/skills --skill subagent-plan-dev -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/subagent-plan-dev/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add sentimony/skills --skill subagent-plan-dev -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/subagent-plan-dev/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install sentimony/skills subagent-plan-dev
```

2. **Manually: put the files in place**
- File: `.github/skills/subagent-plan-dev/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add sentimony/skills --skill subagent-plan-dev -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/sentimony/skills --path plugins/devflow/skills/subagent-plan-dev
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/subagent-plan-dev/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add sentimony/skills --skill subagent-plan-dev -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/sentimony/skills/tree/HEAD/plugins/devflow/skills/subagent-plan-dev/SKILL.md

## When to use it
- execute implementation plans using scoped subagent roles
- verify code changes independently before task acceptance
- resume interrupted orchestration runs without losing state
- detect task dependencies and file conflicts ahead of dispatch

## Example prompts
- Execute the implementation plan in `plan.md` using coordinated subagents
- Resume the interrupted plan execution from `.sdd/`
- Run subagents to implement tasks defined in `refactor-plan.md`

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 3f8dbc01e8bbf2ac.

BEGIN THIRD-PARTY FILE 3f8dbc01e8bbf2ac
````text
---
name: subagent-plan-dev
description: You MUST use this when executing an existing implementation plan through coordinated subagents, including resuming interrupted orchestration. Covers task delegation, review, verification, and integration. Not for inline plan execution or unrelated parallel investigations.
metadata:
  version: "1.4.1"
license: MIT
---

# Subagent Plan Development

## When to use and responsibility

Apply this skill when an implementation plan exists and is executed through scoped
subagents under a controller. The plan may come from `plan-crafting`, from another tool,
or from the user by hand. Resuming an interrupted orchestration enters here as well.

```text
NO TASK IS ACCEPTED ON AN IMPLEMENTER'S OWN REPORT;
ACCEPTANCE REQUIRES CONTROLLER-OWNED VERIFICATION.
```

```text
Sequential execution is the safe default.
```

| Role | Owns |
| --- | --- |
| Controller | Execution state, dependency model, risk classification, dispatch, scope checks, independent verification, acceptance decisions, escalation, final verification. |
| Implementer | Scoped implementation, targeted exploration of the repository, targeted tests, and an explanation of any deviation from the brief. |
| Reviewer | Checking the implementation against the task brief, code quality, omissions and regressions, actionable findings, and an explicit verdict. |

A reviewer does not become an implementer on its own initiative. The controller never
accepts a task on an implementer's report alone.

Non-goals: this skill does not write plans, does not run brainstorming, does not own
debugging methodology, does not own testing methodology, does not own specialized
security, frontend or database review, and does not own branch completion. Route each to
its owner in section 12.

## 1. Run pre-flight before the first dispatch

1. validate the plan is concrete enough to dispatch, naming what is missing when it is not;
2. scan for conflicts between tasks that touch the same files;
3. build the dependency model from section 2;
4. classify risk per task from section 3;
5. detect harness capabilities from section 4;
6. inspect the existing test setup before selecting verification commands;
7. initialize `.sdd/<plan-id>/` and confirm the ignore rule;
8. once the execution workspace is chosen and before the first dispatch, record the review
   base in `state.json` (section 5).

A plan too vague to dispatch is returned to the user or to `plan-crafting`. It is not
executed on guesses: an implementer given an underspecified brief invents the missing
````
END THIRD-PARTY FILE 3f8dbc01e8bbf2ac

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