Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/luna-prompts/skillnote/claude-mdgit clone --depth 1 https://github.com/luna-prompts/skillnoteWrote 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/instructions/luna-prompts/skillnote/claude-md)<a href="https://agentmods.dev/instructions/luna-prompts/skillnote/claude-md"><img src="https://agentmods.dev/badge/instructions/luna-prompts/skillnote/claude-md.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 | $0.02386 | $0.02386 |
| Opus 5 | $0.01193 | $0.01193 |
| Sonnet 5 | $0.00477 | $0.00477 |
| Haiku 4.5 | $0.00239 | $0.00239 |
Grade A, and why
skillnote CLAUDE.md scanned grade A with 0 findings 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 4d 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 226 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
Project guide for AI coding agents working on SkillNote.
Overview
SkillNote is a self-hosted skill registry for AI coding agents. It lets teams create, version, and distribute SKILL.md files across Claude Code, Cursor, Codex, OpenHands, and more. The app is offline-first: skills are stored in localStorage and sync to PostgreSQL when the backend is available.
Tech Stack
| Layer | Technology |
|---|---|
| Frontend | Next.js 16, React 19, TypeScript, Tailwind CSS 4, Tiptap |
| Backend | Python 3.12, FastAPI, SQLAlchemy 2, Alembic, Pydantic 2 |
| Database | PostgreSQL 16 |
| CLI | Node.js, TypeScript, Commander.js |
| Infra | Docker, Docker Compose |
Project Structure
skillnote/
├── src/ # Next.js frontend (App Router)
│ ├── app/(app)/ # Route group: pages (home, skills, tags, collections, settings)
│ ├── components/
│ │ ├── skills/ # SkillDetail, SkillCard, editor, tabs (view/edit/history/comments)
│ │ ├── layout/ # Sidebar, TopBar, ConnectionBanner
│ │ ├── import/ # ImportModal (SKILL.md file import)
│ │ └── ui/ # shadcn/ui primitives
│ └── lib/
│ ├── api/client.ts # Fetch wrapper (apiRequest<T>) + SkillNoteApiError
│ ├── api/skills.ts # All typed API calls (CRUD, comments, tags, versions)
│ ├── skills-store.ts # Offline-first state (localStorage + API sync)
│ ├── skill-validation.ts # Frontend validation (mirrors backend rules exactly)
│ ├── mock-data.ts # TypeScript types + seed data
│ ├── markdown-utils.ts # SKILL.md generation + parsing with YAML frontmatter
│ ├── hooks.ts # useKeyboardShortcut, useClipboard, useLocalStorage
│ └── utils.ts # cn() (clsx + tailwind-merge)
├── backend/ # FastAPI backend
│ ├── app/api/ # Route handlers (skills, comments, tags, publish, downloads)
│ ├── app/db/models/ # SQLAlchemy models (Skill, SkillVersion, SkillContentVersion, Comment)
│ ├── app/schemas/ # Pydantic request/response schemas
│ ├── app/validators/ # skill_validator.py (name/desc rules), bundle_validator.py (ZIP validation)
│ ├── app/core/config.py # pydantic-settings with SKILLNOTE_ env prefix
│ ├── app/services/ # LocalBundleStorage (ZIP file storage)
│ ├── alembic/versions/ # 4 migrations (initial → rich fields → content versions → drop auth)
│ ├── tests/ # pytest unit + integration tests
│ └── scripts/ # seed_data.py, wait_for_db.py, smoke_test.sh
├── cli/ # CLI tool (skillnote binary)
│ └── src/
│ ├── commands/ # login, list, add, check, update, remove, doctor
│ └── agents/ # Agent adapters (claude, cursor, codex, openclaw, openhands, universal)
├── e2e/ # Playwright E2E tests
├── docker-compose.yml # Full stack: postgres + api + web
└── Dockerfile # Next.js multi-stage build
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.
- 4d ago First seen · 226 lines · 2,386 tokens per session scan A 894f1aa425bd
skillnote CLAUDE.md is an instructions file published in the GitHub repository luna-prompts/skillnote (59 stars, last pushed 20d ago), licensed MIT. It adds 2,386 tokens to every session, about $0.0119 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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gortex CLAUDE.md
Claude Code instructions for zzet/gortex, covering gortex, build & test, codebase overview, discovery (read once, then keep using) and llm provider (powers ask and searchsymbols assist: modes).
agent-toolkit AGENTS.md
AGENTS.md instructions for ulises-jeremias/agent-toolkit, covering agents.md — ai agent contract, what this toolkit does, repository structure, operating rules and how to add a skill.
core-ai CLAUDE.md
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ChatCrystal AGENTS.md
AGENTS.md instructions for ZengLiangYi/ChatCrystal, covering agents.md, project overview, commands, development (server port 3721 + client port 13721) and build for production.
sample-well-architected-skills-and-steering copilot-instructions.md
Copilot instructions for aws-samples/sample-well-architected-skills-and-steering, covering well-architected framework, role, when to apply, pillars and design principles.
core-ai AGENTS.md
AGENTS.md instructions for helius-labs/core-ai, covering core ai — agent instructions, repository overview, mcp server setup, api key setup and public tool surface.