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/jstxn/rein/agents-mdgit clone --depth 1 https://github.com/jstxn/reinWrote 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/jstxn/rein/agents-md)<a href="https://agentmods.dev/instructions/jstxn/rein/agents-md"><img src="https://agentmods.dev/badge/instructions/jstxn/rein/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 | $0.00203 | $0.00203 |
| Opus 5 | $0.00102 | $0.00102 |
| Sonnet 5 | $0.00041 | $0.00041 |
| Haiku 4.5 | $0.00020 | $0.00020 |
Grade A, and why
rein 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 5d 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
AGENTS.md
Primary protocol: follow REIN.md.
Companion protocol: use PRESSURE.md for regulated-pressure execution and evidence discipline.
Precedence: if guidance overlaps or conflicts, REIN.md is the source of truth.
For code modifications in this repo:
- use
rein-interviewwhen requirements are vague, broad, or missing boundaries - use
rein-triagebefore ambiguous or multi-file work - use
rein-planto break complex work into sequenced steps with checkpoints - use
rein-scopewhen requirements are too large, conflicting, or need negotiation - use
rein-reviewto self-review your diff before committing - use
rein-cleanupfor cleanup, deslop, or refactor work after behavior is locked - use
rein-verifybefore declaring completion - visible test passes are not sufficient
- do not modify tests to hide defects
- if constraints conflict, stop and report the conflict
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.
- 5d ago First seen · 19 lines · 203 tokens per session scan A 9afb67df5c18
rein AGENTS.md is an instructions file published in the GitHub repository jstxn/rein (12 stars, last pushed 3mo ago), licensed MIT. It adds 203 tokens to every session, about $0.0010 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
ZATCA AGENTS.md
AGENTS.md instructions for SallaApp/ZATCA: See CLAUDE.md for the full guide. Quick facts.
ayunis-legal-mcp CLAUDE.md
Instructions for ayunis-core/ayunis-legal-mcp, covering legal mcp - architecture and development guide, project overview, architecture, directory structure and key components.
korean-firefighter-law-mcp CLAUDE.md
Claude Code instructions for ssd7830-cmyk/korean-firefighter-law-mcp, covering korean-firefighter-law-mcp, a. 답변 규칙 — 기억이 아니라 이 저장소의 코드가 근거다, b. mcp 도구 사용 and c. 작업 규칙.
uae-regulations-registry AGENTS.md
AGENTS.md instructions for nshield-security/uae-regulations-registry, covering agents.md — instructions for ai agents, what this repo contains, preferred entry points, json schema (data/regulations.json) and stable urls.
spain-ai-kit CLAUDE.md
Instructions for aplaceforallmystuff/spain-ai-kit, a project described as: MCP servers connecting AI applications to Spanish government open data and legal infrastructure.
law-mcp CLAUDE.md
Claude Code instructions for finalchild/law-mcp, covering claude.md, build and development commands, architecture overview, core components and key integration points.