What is mattpocock-skills?

A collection of coding-agent skills covering requirements, debugging, test-driven development, code review, architecture, domain modelling, research, and teaching. Test-driven development, or TDD, means writing a failing test before writing the code that should pass it.

Use it for turning requests into specifications or tickets, planning and implementing changes, diagnosing bugs, reviewing code, modelling business concepts, and practising TDD.

It gives an agent structured ways to clarify work, investigate problems, review changes, and build software rather than responding with unexamined code.

mattpocock-skills — Plugin for Claude Code by baleen37/bstack

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/baleen37/bstack

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/baleen37/bstack/mattpocock-skills/github.svg)](https://agentmods.dev/plugins/baleen37/bstack/mattpocock-skills)

Your own site

<a href="https://agentmods.dev/plugins/baleen37/bstack/mattpocock-skills"><img src="https://agentmods.dev/badge/plugins/baleen37/bstack/mattpocock-skills/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/baleen37/bstack/mattpocock-skills"><img src="https://agentmods.dev/badge/plugins/baleen37/bstack/mattpocock-skills.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured The manifest loads nothing itself; its 26 skills cost 808 tokens a session between them.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

mattpocock-skills scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/mattpocock-skills/.claude-plugin/plugin.json · 22 lines

What it actually says

{
  "name": "mattpocock-skills",
  "version": "17.65.2",
  "description": "Matt Pocock's agent skills for real engineering: grilling, spec/ticket flows, TDD, code review, domain modelling and more. Plug-and-play, not vibe coding.",
  "author": {
    "name": "Matt Pocock"
  },
  "homepage": "https://www.aihero.dev/s/skills-newsletter",
  "repository": "https://github.com/mattpocock/skills",
  "license": "MIT",
  "keywords": [
    "engineering",
    "skills",
    "tdd",
    "code-review",
    "grilling",
    "domain-modeling",
    "productivity"
  ],
  "skills": "./skills/"
}

Contents

What it installs

The manifest is a name and a version. 26 skills travel with it, and installing the plugin installs all of them — 808 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago Changed ea1a037afad4
1mo ago Changed 5c870e4f56cd
1mo ago Changed d528012f9f7a
1mo ago Changed f8ec220343b7
1mo ago Changed 13333d841b7f
1mo ago Changed · -26 lines 778938675ee1
1mo ago Changed a481037a8e26
1mo ago Changed e1827ac6b390
2mo ago Changed ecd5a13b9666
2mo ago First seen · 48 lines scan A d9f53d5db256

Subscribe to this mod's changes

mattpocock-skills is a plugin published in the GitHub repository baleen37/bstack (4 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-05.

Code review TDD Testing

mattpocock-skills next to 6 plugins from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
mattpocock-skillsbaleen37/bstack	Plugin	4	1mo ago	MIT	A	—	Claude Code
openmetadata-skillsopen-metadata/OpenMetadata	Plugin	16k	yesterday	Apache-2.0	A	—	Claude Code
superjawnjamditis/claude-skills-journalism	Plugin	448	2d ago	MIT	A	—	Claude Code
ring marketplaceLerianStudio/ring	Plugin	218	6d ago	Apache-2.0	A	—	Claude Code
mattpocock-skillsmrclrchtr/supi	Plugin	103	2d ago	MIT	A	—	Claude Code
code-qualityFlorianBruniaux/claude-code-plugins	Plugin	44	2d ago	MIT	A	—	Claude Code
supergraphdatit309/supergraph	Plugin	23	8d ago	MIT	A	—	Claude Code