# apex

Runs a task through Analyze → Plan → Execute → eXamine with checkpoints, scoped delegation and evidence. Fits features, bug fixes and migrations.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 527 installs · ★ 233
- Author: Melvynx
- License: not stated · policy=link-only · description only; the file stays with the author
- Source: https://github.com/Melvynx/aiblueprint/tree/HEAD/agents-config/skills/apex/SKILL.md
- Updated: 2026-10-21
- HTML: https://affpapa.org/en/nevibecode/skills/melvynx-apex

## What it does

The skill lays out a fixed pipeline of nine stages: contract, analysis, plan, execution, validation, examination, tests, runtime proof, handoff. Each one lives in its own file under `steps/`, and the agent reads only the current step instead of pulling the whole process into context. Run state goes through `scripts/apex-state.py` into `.agents/apex/runs/<run-id>/`; secrets do not belong there.

Flags tune the run. `-a`/`-A` pick low or standard interaction, `-t`/`-T` switch new tests on or off, `-v`/`-V` control runtime proof, `-e`/`-E` set the budget, `-pr`/`-PR` decide on a pull request. Resume an interrupted run with `-r <id>`. Flags carry intent; they do not dictate a specific implementation.

Only bounded, independent chunks may be delegated, and whatever a subagent returns stays untrusted until the coordinator reads the diff. The run closes when the implementation exists, acceptance criteria have fresh evidence, regressions introduced along the way are fixed, and delivery actions were read back from the system.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add Melvynx/aiblueprint --skill apex -a claude-code
```

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

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add Melvynx/aiblueprint --skill apex -a codex
```

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

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add Melvynx/aiblueprint --skill apex -a cursor
```

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

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install Melvynx/aiblueprint apex
```

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

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add Melvynx/aiblueprint --skill apex -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/Melvynx/aiblueprint --path agents-config/skills/apex
```

### Windsurf (Devin Desktop)

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

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add Melvynx/aiblueprint --skill apex -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/Melvynx/aiblueprint/tree/HEAD/agents-config/skills/apex/SKILL.md

## When to use it
- carry a feature from analysis to a verified result
- split a migration into checkpointed stages
- attach tests and runtime proof according to risk
- hand a bounded slice of work to a subagent
- resume a stopped run from a saved checkpoint

## Example prompts
- Run apex on this task: add pagination to the orders list
- Start apex with `-t` and `-v` so tests and runtime proof are required
- Continue the apex run: `-r <id>`

## Similar
- [setup-matt-pocock-skills](https://affpapa.org/en/nevibecode/skills/setup-matt-pocock-skills.md) — skill · 1052851 installs
- [ask-matt](https://affpapa.org/en/nevibecode/skills/ask-matt.md) — skill · 766587 installs
- [to-tickets](https://affpapa.org/en/nevibecode/skills/to-tickets.md) — skill · 711230 installs
- [writing-plans](https://affpapa.org/en/nevibecode/skills/writing-plans.md) — skill · 282859 installs
- [caveman-review](https://affpapa.org/en/nevibecode/skills/caveman-review.md) — skill · 411800 installs
- [caveman-compress](https://affpapa.org/en/nevibecode/skills/caveman-compress.md) — skill · 411500 installs

## Other versions with the same name
- [apex · oracle](https://affpapa.org/en/nevibecode/skills/apex.md) — 1600 installs

From the same set: [melvynx/aiblueprint](https://affpapa.org/en/nevibecode/by/melvynx/aiblueprint.md) — 2 cards

---
NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md