SKILL.md
<essential_principles>
Core Principles
These principles apply to ALL agent instruction files (CLAUDE.md, AGENTS.md).
1. Minimal Root File
The root instruction file should be as small as possible. Every token loads on every request regardless of relevance.
Absolute minimum content:
- One-sentence project description (acts as role prompt)
- Package manager (if not npm)
- Non-standard build/test commands
Everything else belongs in progressive disclosure files.
2. Progressive Disclosure
Structure knowledge in layers:
Level 1: Root file (~100-300 words)
Level 2: docs/CONVENTIONS.md, docs/TYPESCRIPT.md, etc.
Level 3: Nested references within those filesLoad context only when needed for the current task.
3. Describe Capabilities, Not Paths
File paths change constantly. Instead of "auth logic lives in src/auth/handlers.ts", write "Authentication is handled by the AuthService module" and let the agent discover current paths.
4. No Instruction Bloat
Curate ruthlessly. Remove redundant instructions (agent already knows), vague guidance ("write clean code"), contradicting rules, and auto-generated boilerplate.
5. Tool-Specific Files
Claude Code uses CLAUDE.md, not AGENTS.md. For multi-tool support, symlink or redirect between them.
6. Monorepo Strategy
| Level | Content |
|---|---|
| Root | Monorepo purpose, navigation, shared tools |
| Package | Package purpose, specific stack, local conventions |
Keep each level focused on its scope. Avoid duplication.
</essential_principles>
<intake>
What needs to be done?
- Create new instruction file
- Audit existing file
- Refactor bloated file
- Sync CLAUDE.md/AGENTS.md
- Add nested package instructions
Wait for response before proceeding.
</intake>
<routing>
| Response | Workflow |
|---|---|
| 1, "create", "new" | workflows/create-instructions.md |
| 2, "audit", "review" | workflows/audit-instructions.md |
| 3, "refactor", "shrink", "clean" | workflows/refactor-instructions.md |
| 4, "sync", "symlink" | workflows/sync-files.md |
| 5, "nested", "package", "monorepo" | workflows/nested-instructions.md |
After reading the workflow, follow it exactly.
</routing>
<templates_index>
Templates
Ready-to-use templates in templates/:
| Template | Use Case |
|---|---|
| [minimal-claude-md.md](./templates/minimal-claude-md.md) | Standard project CLAUDE.md |
| [package-claude-md.md](./templates/package-claude-md.md) | Package-level instructions in a monorepo |
| [monorepo-root.md](./templates/monorepo-root.md) | Root-level monorepo instructions |
</templates_index>
<reference_index>
References
All in references/:
- [agents-md-standard.md](./references/agents-md-standard.md) -- AGENTS.md open standard details
- [claude-md-format.md](./references/claude-md-format.md) -- Claude Code specific CLAUDE.md format
- [progressive-disclosure.md](./references/progressive-disclosure.md) -- structuring knowledge hierarchies
- [common-problems.md](./references/common-problems.md) -- anti-patterns and how to fix them
</reference_index>
<workflows_index>
Workflows
All in workflows/:
| Workflow | Purpose |
|---|---|
| create-instructions.md | Create new CLAUDE.md or AGENTS.md from scratch |
| audit-instructions.md | Analyze existing file for problems |
| refactor-instructions.md | Fix bloated/problematic instruction files |
| sync-files.md | Keep CLAUDE.md and AGENTS.md in sync |
| nested-instructions.md | Add package-level instructions in monorepos |
</workflows_index>
<success_criteria>
A well-managed instruction file:
- Root file under 500 words
- Uses progressive disclosure for detailed content
- Describes capabilities, not file paths
- Has no contradicting instructions
- Loads only relevant context per task
</success_criteria>