A seven-stage workflow for test-driven development, or TDD—the practice of writing a failing test before implementing the code that makes it pass. Its stages are setup, planning, failing test, implementation, cleanup, review, and commit.

Use it to guide a feature or bug fix from initial setup through tests, implementation, refactoring, review, and Git commit.

It gives development work a repeatable order and keeps the implementation tied to observable tests. The workflow also includes a review and a clear finish point.

tdd-core — Plugin for Claude Code by morodomi/tdd-skills

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/morodomi/tdd-skills

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/morodomi/tdd-skills/tdd-core/github.svg)](https://agentmods.dev/plugins/morodomi/tdd-skills/tdd-core)

Your own site

<a href="https://agentmods.dev/plugins/morodomi/tdd-skills/tdd-core"><img src="https://agentmods.dev/badge/plugins/morodomi/tdd-skills/tdd-core/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/morodomi/tdd-skills/tdd-core"><img src="https://agentmods.dev/badge/plugins/morodomi/tdd-skills/tdd-core.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 13 skills, 14 agents cost 1,040 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

tdd-core 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/tdd-core/.claude-plugin/plugin.json · 10 lines

What it actually says

{
  "name": "tdd-core",
  "description": "TDD 7-phase workflow skills. Language-agnostic test-driven development: INIT → PLAN → RED → GREEN → REFACTOR → REVIEW → COMMIT",
  "author": {
    "name": "morodomi"
  },
  "repository": "https://github.com/morodomi/tdd-skills",
  "license": "MIT"
}

Contents

What it installs

The manifest is a name and a version. 13 skills, 14 agents travel with it, and installing the plugin installs all of them — 1,040 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 First seen · 10 lines scan A a0c0b02d89af

Subscribe to this mod's changes

tdd-core is a plugin published in the GitHub repository morodomi/tdd-skills (9 stars, last pushed 8mo 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 2026-08-31.

TDD Testing

jira-pack

Issue-tracker pack: /jira-fix takes a ticket link of any type, verifies tracker access, classifies it as a defect or a change, reproduces the defect or writes a failing acceptance test for the change, routes the work to core executors, comments back with evidence and moves the ticket to the QA column. Opt-in; requires.

atretyak1985/swarmery · not measured

whetstone

Engineering-craft skills: red-green TDD, flaky-test audit, diagnosis, doubt review, grilling, merge-conflict resolution, research reports with grounded claims, HTML reports, skill linting and a column budget. Every gate among them carries a deterministic self-verify.

raisedadead/claude-code-plugins · not measured

tdd-core

Getting it into your agent

Wrote this? Show the measurements

Grade A, and why

Nothing flagged

What it actually says

What it installs

What this file has done since we first saw it

Other plugins, from other repositories

jira-pack

whetstone

es6kr

superpowers-deepseek-v4

knowledge-virtuoso

safeword