Borrowing it
Nothing to install: this file belongs to changoo89/claude-pilot. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/changoo89/claude-pilot/main/.claude/skills/three-tier-docs/SKILL.mdgit clone --depth 1 https://github.com/changoo89/claude-pilotWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/changoo89/claude-pilot/three-tier-docs)<a href="https://agentmods.dev/skills/changoo89/claude-pilot/three-tier-docs"><img src="https://agentmods.dev/badge/skills/changoo89/claude-pilot/three-tier-docs.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00029 | $0.01627 |
| Opus 5 | $0.00015 | $0.00813 |
| Sonnet 5 | $0.00006 | $0.00325 |
| Haiku 4.5 | $0.00003 | $0.00163 |
Grade B, and why
three-tier-docs scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Enumerates other installed skillsmediumAgent snooping
Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.
for dir in src/ components/ lib/ .claude/commands/ .claude/skills/ .claude/agents/; do How it starts
The opening of the file, as written. The whole thing — 193 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SKILL: Three-Tier Documentation
Purpose: Auto-sync documentation across 3 tiers (CLAUDE.md → CONTEXT.md → docs/) Target: Documenter agent after implementation
Quick Start
When to Use This Skill
- After implementing features
- After refactoring code
- After creating new components
- Run via
/documentcommand
Quick Reference
# Tier 1: Sync 3 Entry Point documents
# - CLAUDE.md (≤200 lines)
# - docs/ai-context/project-structure.md
# - docs/ai-context/docs-overview.md
# Tier 2: Component CONTEXT.md (≤200 lines)
# - Purpose, key files, patterns
# Tier 3: Feature CONTEXT.md (≤200 lines)
# - Implementation details
What This Skill Covers
In Scope
- 3-tier documentation hierarchy (CLAUDE.md, CONTEXT.md, docs/)
- Size limits and content organization
- Auto-sync patterns after code changes
Out of Scope
- Detailed templates → @.claude/skills/three-tier-docs/REFERENCE.md
- Verification skills → docs-verify
- Git documentation workflow → @.claude/skills/git-master/SKILL.md
Core Concepts
3-Tier Hierarchy
Tier 1: Entry Points (3 files only)
CLAUDE.md- Architecture, features, Quick Start (≤200 lines)docs/ai-context/project-structure.md- Tech stack, file tree (≤200 lines)docs/ai-context/docs-overview.md- Documentation navigation, Tier mapping (≤200 lines)- Required: CLAUDE.md top section must reference the other 2 files
- Constraint: docs/ai-context/ folder must contain exactly 2 files
Tier 2: CONTEXT.md (Component Directory)
- Purpose: Component context
- Content: Purpose, key files, patterns
- Size: ≤200 lines per file
- Scope: Component-level context
Tier 3: CONTEXT.md (Feature Directory)
- Purpose: Feature implementation details
- Content: Implementation details, deep-dive
- Size: ≤200 lines per file
- Scope: Feature-level context
Content Organization
| Tier | Location | Files | Update Frequency |
|---|---|---|---|
| 1 | Root + docs/ai-context/ | CLAUDE.md, project-structure.md, docs-overview.md | Project changes |
| 2 | Component dirs | CONTEXT.md | Component changes |
| 3 | Feature dirs | CONTEXT.md | Feature changes |
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 8d ago First seen · 193 lines · 29 tokens per session scan B 763fc7f75e78
three-tier-docs is a skill published in the GitHub repository changoo89/claude-pilot (20 stars, last pushed 7mo ago), licensed MIT. It adds 29 tokens to every session and 1,627 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (enumerates other installed skills). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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