Borrowing it
Nothing to install: this file belongs to ryan-scheinberg/harness. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/ryan-scheinberg/harness/main/AGENTS.mdgit clone --depth 1 https://github.com/ryan-scheinberg/harnessWrote 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/ryan-scheinberg/harness/agents-md)<a href="https://agentmods.dev/instructions/ryan-scheinberg/harness/agents-md"><img src="https://agentmods.dev/badge/instructions/ryan-scheinberg/harness/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/ryan-scheinberg/harness/agents-md"><img src="https://agentmods.dev/badge/instructions/ryan-scheinberg/harness/agents-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.02162 | $0.02162 |
| Opus 5.5 | $0.00865 | $0.00865 |
| Sonnet 5.5 | $0.00432 | $0.00432 |
| Haiku 4.5 | $0.00216 | $0.00216 |
Grade B, and why
harness AGENTS.md scanned grade B with 1 finding 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 2mo 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
| `./codex-agents/install.sh` | Installs native Codex custom-agent TOML into `~/.codex/agents/` and a marked MultiAgent V2 block into `~/.codex/config.toml`. The block exposes custom role/model selection and sets eight t How it starts
The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Harness repo — agent notes
This repository is the source of truth for the user's Claude Code harness. Skills, the global CLAUDE.md, safety hooks, local schedules, and the optional Codex adapter all live here and are version-controlled in one place.
Install / refresh
| Command | What it does |
|---|---|
./skills/install.sh |
Discovers every SKILL.md under skills/ (any depth, skipping .git/) and flat-symlinks each directory into ~/.claude/skills/<name>/. Prunes stale symlinks pointing into $REPO_ROOT or legacy ~/Documents/skills/. You can run this |
./codex/install.sh |
Optional Codex adapter. Installs shared skills into ~/.codex/skills/<name>/; non-role skills are symlinks, role skills are generated copies with Codex $role-* invocation wording so Claude role files stay untouched. Symlinks ~/.codex/AGENTS.md to the separate ignored personal codex/AGENTS.md; it never reads CLAUDE.md. You can run this |
./codex-agents/install.sh |
Installs native Codex custom-agent TOML into ~/.codex/agents/ and a marked MultiAgent V2 block into ~/.codex/config.toml. The block exposes custom role/model selection and sets eight total V2 slots; unrelated config stays untouched. You can run this |
./hooks/install.sh |
Merges safety hooks (native deny rules + the PreToolUse bash gate and codex-timeout hooks) into ~/.claude/settings.json. Writes to user settings. The user will run this |
./schedules/install.sh |
Syncs schedules/*.cron specs into the user's crontab under a delimited block. Writes to crontab, and needs macOS Full Disk Access. The user will run this |
CLAUDE.md is a one-time manual symlink: ln -sf "$PWD/CLAUDE.md" ~/.claude/CLAUDE.md
Installers are Bash 3.2-compatible so they run on macOS's default shell. Re-run an installer after adding, moving, or renaming anything in its directory. The repo is the source of truth: installers unconditionally overwrite their destinations, no adoption check or diff dance
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.
- 2mo ago First seen · 80 lines · 2,162 tokens per session scan B 1becb9d3ef76
harness AGENTS.md is an instructions file published in the GitHub repository ryan-scheinberg/harness (2 stars, last pushed 3mo ago), licensed MIT. It adds 2,162 tokens to every session, about $0.0086 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). 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).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
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 copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.