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ClawedBack: Skill for Claude Code

.claude/skills/tdd/SKILL.md

tdd is a skill for Claude Code from mfielding92/ClawedBack. It costs 40 tokens per session (821 once invoked), scanned A, original, AGPL-3.0.

A test-driven development workflow. Test-driven development means writing a failing test first, making the code pass, and then cleaning up the code.

In plain words
What is it for?
Use it to implement features or fix bugs when the user asks for tests, test-first work, or a red-green-refactor cycle.
Why use it?
It gives feature work and bug fixes a repeatable order and helps catch mistakes while the change is being made.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

This is mfielding92/ClawedBack's own configuration. It tells Claude Code how to work on ClawedBack itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ClawedBack configures →

not rated 22repo +1 2mo ago A scan 40 tokens AGPL-3.0
View source ↗ mfielding92/ClawedBack
Reuse

Borrowing it

Nothing to install: this file belongs to mfielding92/ClawedBack. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/mfielding92/ClawedBack/main/.claude/skills/tdd/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/mfielding92/ClawedBack

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.

agentmods badge for tdd

README.md
[![agentmods](https://agentmods.dev/badge/skills/mfielding92/clawedback/tdd/github.svg)](https://agentmods.dev/skills/mfielding92/clawedback/tdd)
Your own site
<a href="https://agentmods.dev/skills/mfielding92/clawedback/tdd"><img src="https://agentmods.dev/badge/skills/mfielding92/clawedback/tdd/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.

agentmods 80×15 button for tdd

Your own site · 80×15
<a href="https://agentmods.dev/skills/mfielding92/clawedback/tdd"><img src="https://agentmods.dev/badge/skills/mfielding92/clawedback/tdd.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 821 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00040 $0.00821
Opus 5.5 $0.00016 $0.00328
Sonnet 5.5 $0.00008 $0.00164
Haiku 4.5 $0.00004 $0.00082

Measured 2mo ago against content hash 2be792af5327, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tdd 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 2mo 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.

.claude/skills/tdd/SKILL.md · 103 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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.

  1. 2mo ago First seen · 103 lines · 40 tokens per session scan A 2be792af5327

Subscribe to this mod's changes

tdd is a skill published in the GitHub repository mfielding92/ClawedBack (22 stars, last pushed 2mo ago), licensed AGPL-3.0. It adds 40 tokens to every session and 821 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-30.

TDDTesting
Related

tdd compared with skills from other repositories

tdd next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
tddmfielding92/ClawedBackSkill222mo agoAGPL-3.0A40Claude Code
engram-testing-coverageGentleman-Programming/engramSkill7.8kyesterdayMITA25Claude Code, Codex
principle-test-behavior-not-implementationmichael-denyer/pstack-claudeSkill4.1kyesterdayMITA50Claude Code
tddcodewithmukesh/dotnet-claude-kitSkill8052d agoMITA81Claude Code
nw-ddd-eventsourcingnWave-ai/nWaveSkill631yesterdayMITA38Claude Code
nw-fp-clojurenWave-ai/nWaveSkill631yesterdayMITA25Claude Code
nw-leanux-methodologynWave-ai/nWaveSkill631yesterdayMITA37Claude Code