gsd:reference:tdd

gsd:reference:tdd is a skill for Claude Code, Codex from allgpt-co/QuickVoice. It costs 15 tokens per session (170 once invoked), scanned A, original, MIT.

A guide to Test-Driven Development, a method where you write a failing test before writing the code that should pass it.

In plain words
What is it for?
Use it to write small tests first, keep tests focused and fast, and improve test coverage.
Why use it?
It gives implementation and refactoring a clear check, helping confirm that code behaves as intended.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/allgpt-co/quickvoice/tdd
Any agent
npx skills add allgpt-co/QuickVoice --skill tdd
Clone the repo
git clone --depth 1 https://github.com/allgpt-co/QuickVoice

Made for: Claude Code, Codex.

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 gsd:reference:tdd

README.md
[![agentmods](https://agentmods.dev/badge/skills/allgpt-co/quickvoice/tdd.svg)](https://agentmods.dev/skills/allgpt-co/quickvoice/tdd)
Your own site
<a href="https://agentmods.dev/skills/allgpt-co/quickvoice/tdd"><img src="https://agentmods.dev/badge/skills/allgpt-co/quickvoice/tdd.svg" alt="Measured on agentmods" height="20"></a>
Per session 15 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 170 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00015 $0.00170
Opus 5 $0.00008 $0.00085
Sonnet 5 $0.00003 $0.00034
Haiku 4.5 $0.00002 $0.00017

Measured 6d ago against content hash 2fa0eb78a0ee, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

gsd:reference: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 6d 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/gsd/references/tdd/SKILL.md · 36 lines

What it actually says

GSD TDD Reference

Test-Driven Development patterns and practices.

When to Use

  • Writing new functionality
  • Refactoring existing code
  • Ensuring test coverage

TDD Cycle

  1. Red - Write failing test
  2. Green - Make test pass
  3. Refactor - Improve code

Best Practices

  • Write smallest test first
  • Test one thing at a time
  • Use descriptive test names
  • Maintain fast test execution
  • Achieve high coverage

Success Criteria

Tests written before implementation, all passing.

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. 6d ago First seen · 36 lines · 15 tokens per session scan A 2fa0eb78a0ee

Subscribe to this mod's changes

gsd:reference:tdd is a skill published in the GitHub repository allgpt-co/QuickVoice (491 stars, last pushed 24d ago), licensed MIT. It adds 15 tokens to every session and 170 once invoked, about $0.0001 per session on Opus 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.

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