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Agent Skill

TDD skill

tddparcadei/Continuous-Claude-v3.claude/skills/tdd/SKILL.md

Test-driven development workflow with philosophy guide - plan → write tests → implement → validate

3.9kMIT

always on

19 tokname + description

once used

2,291 tokSKILL.md body

bundled files

0

repo stars

3.9kGitHub

Install the TDD skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/parcadei/Continuous-Claude-v3 --skill tdd

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/parcadei/Continuous-Claude-v3.git /tmp/Continuous-Claude-v3
mkdir -p ~/.claude/skills
cp -R /tmp/Continuous-Claude-v3/.claude/skills/tdd ~/.claude/skills/tdd

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

WhenWhat loadsCost
Every sessionName and description19 tok
When the agent uses itThe SKILL.md instructions2,291 tok
Only if openedNo bundled files—

Until it is used, tdd costs about 72× less than the median MCP server we measured (1,363 tokens on every turn). Installing all 150 skills from parcadei/Continuous-Claude-v3 would load 2,175 tokens of descriptions. Skills vs MCP study

Checks

Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

  • /tdd - Test-Driven Development Workflow
  • When to Use
  • TDD Philosophy
  • Overview
  • The Iron Law
  • Red-Green-Refactor
  • RED - Write Failing Test
  • Verify RED - Watch It Fail
  • GREEN - Minimal Code
  • Verify GREEN - Watch It Pass
  • REFACTOR - Clean Up
  • Common Rationalizations
  • Red Flags - STOP and Start Over
  • Verification Checklist
  • When Stuck
  • Workflow Execution
  • Workflow Overview
  • Agent Sequence
  • Core Principle
  • Execution
  • Phase 1: Plan Test Cases
  • Phase 2: Write Failing Tests (RED)
  • Phase 3: Implement (GREEN)
  • Phase 4: Validate

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