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Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/davidbasilefilho-tdd
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
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About
Use cases: testing
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/tdd
What's inside
- Skill name
tdd- Description
- Apply test-driven development for features or fixes. Use when the user requests test-first work, red-green-refactor, or integration tests.
- License
- Apache-2.0
- Instructions
- 26 lines in SKILL.md · view on GitHub
Files (3)
- SKILL.md
- mocking.md
- tests.md
SKILL.md (first lines)
# Test-Driven Development Read `CONTEXT.md` when present; match domain terms and respect relevant ADRs. See [tests.md](tests.md) and [mocking.md](mocking.md). ## Test Surface Test behavior through public interfaces, never internals. Tests must read as specifications and survive refactors. A seam is a public boundary where behavior is observed. Before testing, list proposed seams and confirm them with user. Write no test at an unconfirmed seam. ## Reject - Implementation-coupled tests: private methods, internal mocks, side-channel verification. - Tautologies: expected value recomputed like production code. Use independent literals, worked examples, or spec facts. - Horizontal slicing: all tests before all code. Use vertical tracer bullets. ## Loop 1. Pick one confirmed seam and behavior. 2. Write one failing test; observe red. 3. Add only enough implementation for green. Avoid speculative behavior. 4. Repeat one vertical slice at a time. Keep refactoring outside red-green cycles; perform it during review after tests pass.
From davidbasilefilho/codex-skills, Apache-2.0.
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high-end-visual-design
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Design premium agency-level web interfaces with deliberate typography, spacing, surfaces, responsive layouts, micro-interactions, and performant motion.
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Rewrite any text, skill, prompt, documentation, instructions, prose, notes, or structured content to use fewer words and tokens while preserving meaning…
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controlled-parallel-work
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Complete software work with the explorer and forge custom agents under tight scope.
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define-goal
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Define or refine a concrete, measurable goal before work starts.
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Generate premium brand-kit images, guideline boards, logo systems, identity decks, and visual-world presentations.
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context7
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Retrieve current library, framework, and component documentation through Context7.
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gpt-taste
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Create high-variance editorial UI with AIDA structure, wide heroes, gapless bento grids, advanced GSAP motion, varied assets, and strict preflight verification.
SkillCFreshness: CClaude Code +9 - 0.463score
review-plan
davidbasilefilho
Review an implementation plan against repository evidence, fix concrete planning failures, then stop before implementation.
SkillCFreshness: CClaude Code +9 - 0.463score
find-skills
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Discover and install agent skills when users ask how to do something, request a skill, seek specialized capability, or want to extend agent functionality.
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teach
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Teach a skill or concept through a persistent workspace of mission-driven lessons, references, resources, practice, and learning records.
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improve-codebase-architecture
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Find codebase deepening opportunities, present a visual HTML review, then guide selected design.
SkillCFreshness: CClaude Code +9
Signals
- Stars
- 0
- Forks
- 0
- Open issues
- 0
- Last commit (this folder)
- Jul 12, 2026 (3 months ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- Apache-2.0
- Repository
- github.com/davidbasilefilho/codex-skills
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
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- 0.504score
security-research
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Exploitability-driven security audit: surface, auth/data, runtime/supply, and independent PoCs; not routine review.
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frontend-taste
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Design/audit distinctive production UI using the complete pols.dev anti-slop law; user visual direction wins.
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debugging
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Diagnose unexplained reproducible failures via competing hypotheses and focused experiments.
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caveman
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Simplest direct implementation satisfying proven requirements; resists speculative architecture.
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context7-cli
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Context7 lookup for version-sensitive library APIs; use librarian for broader research.
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babysit-ci
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Watch a specified CI run to completion; diagnose and, when authorized, fix causal failures.
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Done for you
Rather not set it up yourself?
Chalk Labs scopes, builds and runs agents for your team: the task audit, the eval harness, the integrations and the weekly ops report. Fixed scope, priced before we start.
See how we build AI agents →Read the case studies
Chalk Labs is a two-founder AI and growth studio. We build AI agents, CRMs and MVPs for Web3 and AI companies, and have shipped 50+ product and token launches.
- launches shipped
- 50+
- launches shipped
- media placements
- 500+
- media placements
- founders on every account
- 2
- founders on every account
Press we've placed: Forbes · CoinDesk · Decrypt · Cointelegraph · The Block
Rahil Jain, Co-founder, Chalk Labs. Ex-Goldman Sachs engineer. You talk to the person who builds it.
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Cite this page
tdd skill. Agent Mart. https://agentmart.dev/skills/davidbasilefilho-tdd (last updated 2026-10-24)