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/jazzyalex/agent-sessions/claude-mdgit clone --depth 1 https://github.com/jazzyalex/agent-sessionsWrote 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/jazzyalex/agent-sessions/claude-md)<a href="https://agentmods.dev/instructions/jazzyalex/agent-sessions/claude-md"><img src="https://agentmods.dev/badge/instructions/jazzyalex/agent-sessions/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 5.1 | $0.00319 | $0.00319 |
| Opus 5 | $0.00160 | $0.00160 |
| Sonnet 5 | $0.00064 | $0.00064 |
| Haiku 4.5 | $0.00032 | $0.00032 |
Grade A, and why
agent-sessions 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 6d 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.
What it actually says
CLAUDE Agent Notes
Before starting work, read the newest entry in
RepoHandover.md.
This repository uses a shared playbook for all agents (Claude, Codex, Xcode, Cursor, etc.).
Primary source of truth
- Read
agents.mdfirst for project‑wide policies, UX rules, and commit protocols. - Treat
agents.mdas authoritative for UI design language (HIG‑aligned spacing, tokens, and behavior) and development workflow.
Key reminders for Claude Code contributions
- Follow Conventional Commits and include trailers (Tool, Model, Why when applicable).
- NEVER commit or push without explicit user request. Only run
git commitorgit pushwhen user says "commit" or "push". - You may advise the user to commit/push, but do not execute these commands proactively.
- Commit message format: Use clean conventional commits WITHOUT "Generated with Claude Code" footer or "Co-Authored-By: Claude" trailer. Only include Tool/Model/Why trailers.
- Git authorship: All commits MUST be authored by the repository owner only. Never add Claude as a co-author.
- When touching UI, use the shared spacing tokens and HIG guidance defined in
agents.md. - If you add or rename Swift files, use
scripts/xcode_add_file.rbto add them to the project (seeagents.md→ "Adding New Swift Files to Xcode Project").
If anything is unclear, open a short plan in chat and confirm before implementing.
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.
- 6d ago First seen · 21 lines · 319 tokens per session scan A 493b9bce470b
agent-sessions CLAUDE.md is an instructions file published in the GitHub repository jazzyalex/agent-sessions (845 stars, last pushed yesterday), licensed MIT. It adds 319 tokens to every session, about $0.0016 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.
Other instructions, from other repositories
do-it AGENTS.md
AGENTS.md instructions for tdwhere123/do-it, covering agents.md, file rules, repository, source of truth vs build artifacts and closed-set contracts.
kirby-mcp AGENTS.md
Instructions for bnomei/kirby-mcp, covering repository guidelines, scoped agent guides (keep in sync), project structure & module organization, build, test, and development commands and coding style & naming conventions.
GameStudio-CodexKIT AGENTS.md
AGENTS.md instructions for hoatv2211/GameStudio-CodexKIT, covering gamestudio-codexkit operating contract, active sources of truth, primary distribution, repository-local maintenance and evidence.
agentic-dev-harness AGENTS.md
Instructions for kohj1018/agentic-dev-harness, covering 프로젝트 지침, 목적, 핵심 행동 규율, 단순성·yagni (구현 시 항상 적용) and claude code plan 모드.
Hipson AGENTS.md
AGENTS.md instructions for Hipson47/Hipson, covering agents.md instructions for hipson, default behavior, orchestration, subagent prompt quality and coding standards.
open-harness AGENTS.md
Instructions for Open-Harness/open-harness, covering ⚠️ critical: vitest orphaned processes - read this first ⚠️, ⚠️ critical: anthropic sdk testing - read this first ⚠️, ⚠️ critical: no mocks testing philosophy ⚠️, rules and what to use instead.