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/megumish/jj-skill/agents-mdgit clone --depth 1 https://github.com/megumish/jj-skillWrote 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/megumish/jj-skill/agents-md)<a href="https://agentmods.dev/instructions/megumish/jj-skill/agents-md"><img src="https://agentmods.dev/badge/instructions/megumish/jj-skill/agents-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 | $0.00382 | $0.00382 |
| Opus 5 | $0.00191 | $0.00191 |
| Sonnet 5 | $0.00076 | $0.00076 |
| Haiku 4.5 | $0.00038 | $0.00038 |
Grade A, and why
jj-skill AGENTS.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.
Copies of this mod
1 near-identical copy found in the catalogue:
- jj-skill CLAUDE.md — 86% identical, 6 lines differ
What it actually says
AGENTS.md
This file provides guidance to Codex (Codex.ai/code) when working with code in this repository.
Project Overview
This is an Agent Skill for jujutsu (jj) version control. It teaches AI coding agents to use jj instead of git. The skill follows the Agent Skills open standard and can be installed in Codex, Cursor, Gemini CLI, GitHub Copilot, and Windsurf.
Version Control
This repository uses jj (jujutsu), not git. Never use raw git commands — use the /jj skill for all version control operations. Minimum supported jj version: 0.41.0 (see .min-jj-version).
Repository Structure
skills/jj/
├── SKILL.md # Main skill definition (frontmatter + instructions)
└── references/
└── command-reference.md # Full jj command reference
SKILL.md— Contains YAML frontmatter (name, description, trigger conditions) followed by the skill content: git-to-jj mapping, core workflows, push operations, and troubleshootingreferences/command-reference.md— Detailed command reference covering workspaces, bookmarks, conflict resolution, undo/recovery, and advanced operations.min-jj-version— Single-line file specifying the minimum jj version this skill supports
Development Notes
- There is no build system, linter, or test suite — the project consists entirely of Markdown documentation files
- When editing skill content, preserve the YAML frontmatter format in
SKILL.md(the---delimited block at the top) - The
descriptionfield in SKILL.md frontmatter determines when AI agents activate this skill — keep it accurate and comprehensive
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 · 31 lines · 382 tokens per session scan A 46171d2555b4
jj-skill AGENTS.md is an instructions file published in the GitHub repository megumish/jj-skill (5 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 382 tokens to every session, about $0.0019 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 2026-08-31.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
next.js AGENTS.md
Instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.