Skill Claude CodeCodex
Use when deeply exploring uncertainty, systematically decomposing complex questions, or gaining certainty about multi-faceted problems. Triggers: 'think deeply about', 'explore this recursively', 'I need certainty about', 'decompose this question', 'what am I missing'. Invoked by design-exploration, fact-checking…
Skill Claude CodeCodex
Use when eliciting or clarifying feature requirements, defining scope, identifying constraints, or capturing user needs. Triggers: 'what are the requirements', 'define the requirements', 'scope this feature', 'user stories', 'acceptance criteria', 'what should this do', 'what problem are we solving', 'what are the…
Skill Claude CodeCodex
Use when generating flowcharts, diagrams, dependency graphs, or visual representations of processes, relationships, architecture, or state machines. Triggers: 'diagram this', 'flowchart', 'visualize', 'dependency graph', 'ER diagram', 'state machine diagram', 'class diagram', 'sequence diagram', 'map the…
Skill Claude CodeCodex
Use when crafting, improving, or reviewing prompts, system prompts, skill instructions, or any text that instructs an LLM. Triggers: 'write a prompt', 'prompt engineering', 'improve this prompt', 'design a system prompt', 'write skill instructions', 'craft agent instructions'. Also invoked by writing-skills. NOT for…
Skill Claude CodeCodex
Use when testing theories during debugging, or when chaos is detected. Triggers: "let me try", "maybe if I", "what about", "quick test", "see if", rapid context switching, multiple changes without isolation. Enforces one-theory-one-test discipline. Invoked automatically by debugging, scientific-debugging…
Skill Claude CodeCodex
Artifact storage paths and project-encoded conventions for generated documents, reports, plans, and audits. Loaded by the core rule module. Triggers: 'where should I put this', 'save report', 'output directory'.
Skill Claude CodeCodex
Use when merging parallel worktrees back together after parallel implementation, combining parallel development tracks, or unifying branches from dispatched parallel agents. Triggers: 'merge worktrees', 'combine parallel branches', 'integrate parallel work', 'all tracks complete', 'bring everything together'.
Skill Claude CodeCodex
Detection heuristics for skill, command, and agent candidates and AGENTS.md knowledge gaps. The always-on opportunity-awareness rule module points here at pause points after substantive work.
Skill Claude CodeCodex
Use when instruction files (skills, prompts, CLAUDE.md) are too long or need token reduction while preserving capability. Triggers: 'optimize instructions', 'reduce tokens', 'compress skill', 'make this shorter', 'too verbose', 'this skill is too big', 'over the line limit', 'trim this down'.
Skill Claude CodeCodex
Use when improving project discoverability, attracting users/contributors, or presenting open source work. Triggers: 'write a README', 'improve README', 'get more users', 'attract contributors', 'add badges', 'create a logo', 'set up issue templates', 'audit this project', 'make this discoverable', 'why isn't anyone…
Skill Claude CodeCodex
Invoked by develop when iteration feedback requires a retry, not directly by users. Prevents repeating the same mistakes across attempts. Also relevant when: 'why did this fail again', 'same error twice', 'what should I do differently', 'keep making the same mistake'.
Skill Claude CodeCodex
Use when implementation is done and you need a structured pre-PR review workflow. Triggers: 'ready for review', 'review my changes before PR', 'pre-merge check', 'is this ready', 'submit for review'. NOT for: post-merge review (use code-review) or deciding how to integrate (use finishing-a-development-branch).
Skill Claude CodeCodex
Use when git merge or rebase fails with conflicts, you see 'unmerged paths' or conflict markers (<<<<<<< =======), or need help resolving conflicted files. Triggers: 'merge conflict', 'fix the conflicts', 'conflicting changes', 'resolve conflicts', 'can't merge'.
Skill Claude CodeCodex
Use when reviewing design documents, technical specifications, architecture docs, RFCs, ADRs, or API designs for completeness and implementability. Triggers: 'review this design', 'is this spec complete', 'can someone implement from this', 'what's missing from this design', 'review this RFC', 'is this ready for…
Skill Claude CodeCodex
Use when reviewing implementation plans before execution. Triggers: 'is this plan solid', 'review the plan', 'check before I start building', 'anything missing from this plan', 'will this plan work', 'audit the implementation plan'. NOT for: reviewing design documents (use reviewing-design-docs) or creating plans (use…
Skill Claude CodeCodex
Load before dispatching any subagent to review or triage a pull request, to pick the correct file version for the branch and worktree state. Required by: advanced-code-review (PR mode), code-review (--pr), distilling-prs (Phase 2), each of which names this skill at its dispatch point. Also use directly when: 'review…
Skill Claude CodeCodex
Use when reviewing LLM prompts, skill instructions, subagent prompts, or any text that will instruct an AI. Triggers: "review this prompt", "audit instructions", "sharpen prompt", "is this clear enough", "would an LLM understand this", "ambiguity check". Also invoked by instruction-engineering, reviewing-design-docs…
Skill Claude CodeCodex
Full protocol for reading files or command output of unknown size: measure before reading, never truncate blindly, delegate large reads. Loaded by the file-reading rule module, which carries the one-line rule and points here.
Skill Claude CodeCodex
Use when user explicitly requests test-driven development. Triggers: 'TDD', 'write tests first', 'red green refactor', 'test-first', 'start with the test'. Also invoked by develop and executing-plans for implementation tasks. NOT for: full feature work (use develop, which includes TDD internally).
Skill Claude CodeCodex
Test selection and scope guidance: tiers, marks, batching, cross-module regressions. Loaded by the testing rule module. Triggers: 'which tests should I run', 'test scope', 'test tiers'. NOT for: writing tests (use test-driven-development) or fixing broken tests (use fixing-tests).
Skill Claude CodeCodex
Use when looking for available tools, MCP servers, or CLI utilities for a task. Triggers: 'what tools do I have', 'is there an MCP for this', 'what's available', 'find a tool for', 'discover tooling', 'what CLI tools exist'. NOT for: documenting existing tools (use documenting-tools).
Skill Claude CodeCodex
Use when starting feature work that needs isolation from current workspace, or setting up parallel development tracks. Triggers: 'worktree', 'separate branch', 'isolate this work', 'don't mess up current work', 'work on two things at once', 'parallel workstreams', 'new branch for this', 'keep my current work safe'.
Skill Claude CodeCodex
Use when mcp-language-server tools are available and you need semantic code intelligence. Triggers: 'find definition', 'find references', 'who calls this', 'rename symbol', 'type hierarchy', 'go to definition', 'where is this used', 'where is this defined', 'what type is this'. Provides navigation, refactoring, and…
Skill Claude CodeCodex
The full skill-routing protocol: decision flow, rationalization table, skill-priority ordering. Loaded by the intent-routing rule module, which carries the kernel. Also use when: 'which skill should I use', 'wrong skill fired', 'skill didn't trigger'.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: