Best test-driven development skills for Claude Code, Codex and other agents.

Has the agent carry out an implementation plan itself, task by task in the current session, keeping a ledger, proving each step with a test and ending with one whole-branch review.

obra/superpowers

You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior.

xpinjection/test-driven-spring-boot

Jest patterns for React Native style tests: TDD discipline, mock factory functions, module and GraphQL hook mocking, custom render helpers and anti-patterns to avoid.

ChrisWiles/claude-code-showcase

Enforces red-green-refactor for Rust work, with idiomatic test patterns, a naming convention and a pre-commit gate of cargo fmt, clippy and test.

rtk-ai/rtk

Test-driven development. An agent skill from fossasia/eventyay-interpretation.

fossasia/eventyay-interpretation

Enforces red-green-refactor for new RTK output filters in Rust, using real captured fixtures, snapshot tests with insta and token-savings assertions.

rtk-ai/rtk

A skill your agent uses when writing new features, fixing bugs, or refactoring code.

hellangleZ/burn-in-cceverywhere-ralph

Test-driven development with red-green-refactor loop. An agent skill from sanity-io/sanity.

sanity-io/sanity

Go testing patterns including table-driven tests, subtests, benchmarks, fuzzing, and test coverage.

antoniopaya22/go-rest-template

Executes a written implementation plan task by task in the current session, with a progress ledger, test-first gates and one fresh-context review at the end.

jnMetaCode/superpowers-zh

A skill your agent uses for Pest PHP testing in Laravel projects only.

luadotsh/lua

A skill your agent uses when writing code, implementing features, refactoring, planning architecture, designing systems, reviewing code, or debugging.

ramziddin/solid-skills

Applies the SPARC method (specification, pseudocode, architecture, refinement, completion) with 17 specialized modes and multi-agent orchestration, from research to deployment.

ruvnet/ruflo

Guides t-wada Red-Green-Refactor TDD for ccusage logic changes.

ccusage/ccusage

A skill your agent uses when creating new skills, editing existing skills, or verifying skills work before deployment

farm-fe/farm

Automate vulnerability remediation from VulnHunter scan results using TDD.

capitalone/VulnHunter

A skill your agent uses when implementing any feature or bugfix, before writing implementation code

farm-fe/farm

Writes unit tests for shell scripts with Bats: error-condition tests, fixtures and mocks, cross-shell checks, parallel runs, helper files and CI integration.

wshobson/agents

Enforce Sentry React Native SDK test conventions for naming, structure, mocking, and fixtures with Jest.

getsentry/sentry-react-native

单需求实现流水线——把一个 TAPD 需求从零推进到代码提交。自动串联技术澄清、 开发计划、任务拆分、TDD 实现、架构/安全校验、代码提交六个阶段。

TencentBlueKing/bk-bcs

Run a fully local agent-deck retrospective over the user's own transcripts, Recall index and logs.

asheshgoplani/agent-deck

Enforce Sentry Dart/Flutter SDK test conventions for naming, structure, and fixtures.

getsentry/sentry-dart

Replaces line-by-line code review with an approved executable spec and a gauntlet of tests, types, coverage, and mutation checks the code must survive.

AmazingAng/old-coder

Sets up an Agent skills block in AGENTS.md/CLAUDE.md and docs/agents/ so the engineering skills know this repo's issue tracker (GitHub or local markdown), triage label vocabulary, and domain doc…

ywwynm/EverythingDone

One-time setup for absolute: interview how you want it to behave (output style, autonomy, TDD strictness, spec dir, families) + detect the stack once, then write .absolute.config.json (project…

maddhruv/absolute

Interactively pick a quick-win contribution in any GitHub repo — either a labeled issue ("good first issue", "help wanted", docs) or a repo-scan candidate (typo, missing tests, i18n gap, actionable…

nexu-io/auto-github-contributor

Guide for implementing features following architecture-first design, TDD, rich domain models, and Swift 6.2 patterns.

tddworks/SkillsManager

A skill your agent uses for Pest PHP testing in Laravel projects only.

liberusoftware/real-estate-laravel

This skill should be used when the user asks to "dev-impl", "タスクを実装", "テストファースト実装", "implement task", "実装を開始", "クイック修正", "quick fix", "dev-impl auth 001".

classmethod/tsumiki

A skill your agent uses when creating or editing skills, before deployment, to verify they work under pressure and resist rationalization - applies RED-GREEN-REFACTOR cycle to process documentation…

ed3dai/ed3d-plugins

Guides an agent through probing an unfamiliar project's test setup, then choosing a red-light-first testing strategy matched to the task type.

huiliyi37/Tianshu-harness

Creates phase-based feature plans with quality gates and incremental delivery structure.

serendipity1004/cc-feature-implementer

Guide for implementing features in ClaudeBar following architecture-first design, TDD, rich domain models, and Swift 6.2 patterns.

tddworks/ClaudeBar

A skill your agent uses when implementing features or fixing bugs with strict Test-Driven Development (TDD).

thedaviddias/skill-check

A skill your agent uses when the user explicitly asks for TDD or a tests-first workflow, or when developing a new feature with a test coverage requirement.

cloudnative-co/claude-code-starter-kit

Creates detailed, sectionized, TDD-oriented implementation plans through research, stakeholder interviews, and multi-LLM review.

piercelamb/deep-plan

Write and improve agent skills (SKILL.md files). An agent skill from millionco/expect.

millionco/expect

A skill your agent uses for Pest PHP testing in Laravel projects only.

mnapoli/vibephp

Enforces a strict test-driven development (TDD) workflow for the HTML Minifier repo.

deanhume/html-minifier

Git-native issue tracking (beads), coding guidelines, knowledge injection, and spec-driven planning for AI agents.

jlevy/strif

Test-Driven Development workflow for BitcoinAddressFinder — delegates to the generic Java TDD skill and adds project-specific context

bernardladenthin/BitcoinAddressFinder

Finds the root cause of failing or slow behavior with a hypothesis-driven loop, then fixes it test-first if you choose, or hands back a diagnosis only.

EveryInc/compound-engineering-plugin

Enforces a strict next-implement-check-done cycle through the agent-foreman CLI so an agent works one backlog task at a time, with optional TDD gating.

mylukin/agent-foreman

A skill your agent uses when building, reviewing, or refactoring Go code that must follow strict design discipline — ATDD/TDD workflow, explicit dependency injection, package-boundary discipline…

mudrii/openclaw-dashboard

Sets idiomatic Go conventions with a test-first workflow, using testify/require for assertions and mockery for mocks, for new features, packages and refactors.

jumppad-labs/jumppad

Headless root-cause debugging loop for a Foreman worker whose tests, build, or acceptance check are failing — especially on a retry.

VisionForge-OU/foreman

Procedure for designing and writing Matft's XCTest cases with high coverage — boundary values, dtypes, memory layouts, NaN/inf, empty arrays, broadcasting, platform differences, performance and…

jjjkkkjjj/Matft

Guide for fixing bugs in ClaudeBar following Chicago School TDD and rich domain design.

tddworks/ClaudeBar