doubt-driven-development
doubt-driven-development is an agent skill published by addyosmani, listed under review & testing. It lives in the addyosmani/agent-skills repository, which has 110,611 GitHub stars and is licensed under MIT; we last read it on 2026-09-16.
Every non-trivial decision is subjected to a fresh-context adversarial review to ensure correctness before proceeding.
Install
skills is a generic installer for any repository of Claude agent skills -- it reads addyosmani/agent-skills’s own structure rather than assuming one, the same way this page reads the skill’s own SKILL.md rather than assuming a format.
npx skills add addyosmani/agent-skills
Maintenance
Subjects every non-trivial decision to a fresh-context adversarial review before it stands. Use when you want every assumption cross-examined before proceeding, when stress-testing a plan for hidden failure modes, when correctness matters more than speed, when working in unfamiliar code, when stakes are high (production auth, security-sensitive logic, a high-stakes migration, irreversible operations), or any time a confident output would be cheaper to verify now than to debug later.
doubt-driven-development compared with similar skills
| Skill | Publisher | What it does | Repo stars | Last update |
|---|---|---|---|---|
| doubt-driven-development (this page) | addyosmani | Subjects every non-trivial decision to a fresh-context adversarial review before it stands. Use when you want… | 110,611 | 2026-10-13 |
| browser-testing-with-devtools(same repository) | addyosmani | Tests in real browsers via Chrome DevTools MCP. Use when building or debugging anything that runs in a browse… | 110,611 | 2026-10-13 |
| code-review-and-quality(same repository) | addyosmani | Conducts multi-axis code review. Use before merging any change. Use when reviewing code written by yourself,… | 110,611 | 2026-10-13 |
| code-simplification(same repository) | addyosmani | Simplifies code for clarity. Use when refactoring code for clarity without changing behavior. Use when code w… | 110,611 | 2026-10-13 |
| code-review | mattpocock | Review the changes since a fixed point (commit, branch, tag, or merge-base) along two axes: Standards (does t… | 303,549 | 2026-10-22 |
| scaffold-exercises | mattpocock | Create exercise directory structures with sections, problems, solutions, and explainers that pass linting. Us… | 303,549 | 2026-10-22 |
| tdd | mattpocock | Test-driven development. Use when the user wants to build features or fix bugs test-first, mentions "red-gree… | 303,549 | 2026-10-22 |
Skills from the same repository first, then others for this job by repository stars. Figures are from each repository when we last read it.
Common questions about doubt-driven-development
- What does doubt-driven-development do?
- Every non-trivial decision is subjected to a fresh-context adversarial review to ensure correctness before proceeding.
- How do I install doubt-driven-development?
- Run npx skills add addyosmani/agent-skills. The skills installer reads the repository’s own structure, so it works for any repository of agent skills.
- Who publishes doubt-driven-development?
- addyosmani.
- Is doubt-driven-development maintained, and what licence does it use?
- Its repository has 110,611 GitHub stars and its state in our directory is listed. Its last commit we recorded was on 2026-10-13. The repository declares the MIT licence.
More agent skills for review & testing
- browser-testing-with-devtoolsby addyosmani
- code-review-and-qualityby addyosmani
- code-simplificationby addyosmani
- vitestby antfu
- webapp-testingby anthropic
- apify-actor-developmentby apify