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sk Skill · addyosmani

doubt-driven-development

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…

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An agent skill that forces every non-trivial decision through a fresh-context adversarial review before it is accepted. It defines a five-step loop — claim, extract, doubt, reconcile, stop — where a reviewer with no shared context cross-examines the decision, with optional cross-model escalation.

Long agent sessions quietly turn assumptions into facts; this catches them while verification is still cheap.

Use it to

  • Stress-test a plan for hidden failure modes
  • Review security-sensitive or irreversible changes
  • Verify decisions in unfamiliar codebases
  • Cross-examine assumptions before a high-stakes migration
  • Escalate to a different model to escape shared blind spots

For Developers using AI coding agents on high-stakes work

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addyosmani/agent-skills
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topicsagent-skillscode-reviewadversarial-reviewverificationdecision-makingquality