Multi-platform AI assistant skills and workflows. Serious engineering. Also fun.
This repository also configures its own agents. See what spellbook tells them →
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'.
Skill Claude CodeCodex
Use when about to claim discovery during debugging. Triggers: "I found", "this is the issue", "I think I see", "looks like the problem", "that's why", "the bug is", "root cause", "culprit", "smoking gun", "aha", "got it", "here's what's happening", "the reason is", "causing the", "explains why", "mystery solved"…
Skill Claude CodeCodex
Use when creating new commands, editing existing commands, or reviewing command quality. Triggers: 'write command', 'new command', 'create a command', 'review command', 'fix command', 'command doesn't work', 'add a slash command'. NOT for: skill creation (use writing-skills).
Skill Claude CodeCodex
Use when writing or de-slopping outward-facing prose: newsletters, blog posts, announcements, marketing copy, emails, release notes, doc intros, cover letters, job-application answers, resume bullets, bios. Fire this whenever you draft outward-facing prose on the author's behalf, even without a trigger phrase.…
Skill Claude CodeCodex
Use when you have a spec, design doc, or requirements and need a detailed implementation plan before coding. Triggers: 'write a plan', 'create implementation plan', 'plan this out', 'break this down into steps', 'convert design to tasks', 'implementation order'. Also invoked by develop during planning. NOT for…
Skill Claude CodeCodex
Use when creating new skills, editing existing skills, or verifying skills work before deployment. Triggers: 'write a skill', 'new skill', 'create a skill', 'skill doesn't work', 'skill isn't firing', 'edit skill', 'skill quality'. NOT for: general prompt improvement (use instruction-engineering) or command creation…
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: