Skill Claude CodeCodex
Invoke this skill immediately when the user wants to: create a new Claude Code skill for any purpose, convert a workflow or conversation into a reusable skill, edit or improve an existing skill, run evals or benchmark skill performance, compare skill versions, or optimize skill triggering. This applies whether the…
Agent
Analyze blind comparison results to understand WHY the winner won and generate improvement suggestions.
Agent
Compare two outputs WITHOUT knowing which skill produced them.
Agent
Evaluate expectations against an execution transcript and outputs.
Skill Claude CodeCodex
Trigger: how to structure a project, architecture choice, hexagonal, clean arch, DDD, vertical slice, feature folders, cómo estructuro, qué arquitectura. Recommends pattern + directory tree for your stack.
Skill Claude CodeCodex
Trigger: broken system, 500s, crashes, slow endpoint, failing test, tried multiple fixes. Reproduce first, trace backward, hypothesize once, verify. Skip: new features, refactoring, code review.
Skill Claude CodeCodex
Activate when someone is about to write code and tests must come before production code — the Red-Green-Refactor cycle. Explicit triggers: user says "TDD" or "test first"; wants tests written against a spec/interface before the implementation exists. Implicit triggers: any bug fix or hotfix (a failing test capturing…
Skill Claude CodeCodex
Trigger: create a skill, new skill, skill types, how to write a skill, skill best practices, skill design. 9 skill categories, authoring tips, description rules, progressive disclosure.
Skill Claude CodeCodex
Plan commits as reviewable work units. Trigger: implementation, commit splitting, chained PRs, or keeping tests and docs with code.