realitycheck AGENTS.md

A set of instructions for coding agents working in the realitycheck repository. It defines project documents to read, shared-repository safety rules, and limits on changing files.

In plain words
What is it for?
Use it when an agent needs to inspect repository status, follow the project’s development process, handle concurrent edits, and stage only its own changes.
Why use it?
It helps agents avoid overwriting other agents’ work, ignoring project guidance, or making changes outside the requested scope.

Instructions file for CodexOpenCode

Install

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.

agentmods
npx agentmods add instructions/lhl/realitycheck/agents-md
Clone the repo
git clone --depth 1 https://github.com/lhl/realitycheck

Made for: Codex, OpenCode.

Per session 3,181 This file is loaded in full into every session.
When invoked 3,181 The same file — it is already loaded in full.
Security scan D 2 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.03181 $0.03181
Opus 5 $0.01590 $0.01590
Sonnet 5 $0.00636 $0.00636
Haiku 4.5 $0.00318 $0.00318

Measured 2d ago against content hash bc1b0a0b2abe, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade D, and why

realitycheck AGENTS.md scanned grade D with 2 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 2d 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.

Unrestricted tool accessmediumExcessive agency

A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.

- NEVER run any command that can delete/overwrite existing work unless the user explicitly instructs it.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

- `rm -rf ...` / overwriting redirects like `> file`
AGENTS.md · 342 lines

How it starts

The opening of the file, as written. The whole thing — 342 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Reality Check - Development Guide

Please refer to README.md, docs/PLAN-separation.md, docs/IMPLEMENTATION.md, and docs/DEPLOY.md for project-specific details. This AGENTS.md/CLAUDE.md is specifically for ground rules, process, and behavior notes.

Shared Repo / Multi-Agent Safety (MUST FOLLOW)

This repo may be edited by multiple agents concurrently. Treat the working tree as shared state.

Before any change (required)

  • Run git status --porcelain.
  • If the working tree has unrelated changes, proceed normally but do not touch them; stage only your own files (git add <paths> / git add -p).
  • If you need to edit a file that already has changes you did not create (potential conflict), flag it and ask the user how to proceed.
  • If there are merge conflicts, STOP and ask the user how to proceed.

Never discard others’ work (hard rule)

  • NEVER run any command that can delete/overwrite existing work unless the user explicitly instructs it. This includes (but is not limited to):
    • git restore ...
    • git checkout -- ...
    • git checkout .
    • git reset --hard ...
    • git clean -fd ...
    • rm -rf ... / overwriting redirects like > file
    • bulk rewrites that destroy local edits (e.g., aggressive formatters) unless requested

Scope discipline

  • Only edit files needed for the user’s current request.
  • Do not “clean up”, refactor, or revert unrelated diffs in touched files.
  • If you need to avoid committing unrelated diffs, use git add <paths> or git add -p; never “fix” by reverting other hunks.

If conflicts are unavoidable

  • Coordinate: propose a plan that preserves both sets of edits (e.g., separate commits/branches/patches), and wait for explicit user instruction before any destructive resolution.

Project Overview

Reality Check is a framework for rigorous, systematic analysis of claims, sources, predictions, and argument chains. It provides:

  • LanceDB-backed storage with semantic search
  • Structured methodology for claim extraction and evaluation
  • Evidence hierarchy and prediction tracking
  • Claude Code plugin for workflow automation

Read the full file on GitHub · 342 lines

Changes

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.

  1. 2d ago First seen · 342 lines · 3,181 tokens per session scan D bc1b0a0b2abe

Subscribe to this mod's changes

realitycheck AGENTS.md is an instructions file published in the GitHub repository lhl/realitycheck (41 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 3,181 tokens to every session, about $0.0159 per session on Opus 5. A static security scan graded it D with 2 findings (unrestricted tool access, recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.