Borrowing it
Nothing to install: this file belongs to marclove/known. 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/marclove/known/main/AGENTS.mdgit clone --depth 1 https://github.com/marclove/knownWrote 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/marclove/known/agents-md)<a href="https://agentmods.dev/instructions/marclove/known/agents-md"><img src="https://agentmods.dev/badge/instructions/marclove/known/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/marclove/known/agents-md"><img src="https://agentmods.dev/badge/instructions/marclove/known/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 | $0.02316 | $0.02316 |
| Opus 5.5 | $0.00926 | $0.00926 |
| Sonnet 5.5 | $0.00463 | $0.00463 |
| Haiku 4.5 | $0.00232 | $0.00232 |
Grade A, and why
known 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This file provides guidance to agentic coding agents like Claude Code, Gemini CLI, and Codex CLI when working with code in this repository. This is the place for documenting our product requirements and development guidelines.
Project Overview
"known" is a Rust library that provides functionality for managing agentic LLM instruction files and project rules directories. It creates and manages AGENTS.md files with automatic migration from CLAUDE.md and GEMINI.md files, creates symlinks for compatibility, and manages rules directories for various AI coding assistants.
Common Commands
- Build:
cargo build - Run tests:
cargo test - Run specific test:
cargo test test_name - Check code:
cargo check - Format code:
cargo fmt - Lint:
cargo clippy - Common development tasks:
just -l
Architecture
The project follows standard Rust library structure:
src/lib.rs- Main library file containing public functions and testssrc/main.rs- CLI interface using clap for command-line argument parsingsrc/agents.rs- AGENTS.md file creation and migration functionalitysrc/autostart.rs- Cross-platform autostart managementsrc/config/- Configuration file management for tracking watched directoriessrc/config/mod.rs- Public API and re-exportssrc/config/io.rs- File I/O operations for configurationsrc/config/path.rs- Configuration file path resolutionsrc/config/structure.rs-Configstruct and implementation
src/constants.rs- Shared constants used throughout the applicationsrc/daemon/- Modular file watching daemon with single instance enforcementsrc/daemon/mod.rs- Main daemon orchestration and lifecycle managementsrc/daemon/config_event.rs- Configuration file event detectionsrc/daemon/config_handler.rs- Configuration file change handling and hot-reloadingsrc/daemon/events.rs- File system event handling and processingsrc/daemon/file_event.rs- File system event handling logicsrc/daemon/symlinks.rs- Symlink management operationssrc/daemon/watchers.rs- File watcher setup and directory monitoring
src/single_instance/- PID file locking for single instance enforcementsrc/single_instance/mod.rs- Public API and testssrc/single_instance/lock.rs-SingleInstanceLockstruct and implementationsrc/single_instance/path.rs- System-wide lock file path functionalitysrc/single_instance/process.rs- Process management utilitiessrc/single_instance/stop.rs- Daemon stopping functionality
src/symlinks.rs- Symlink creation and rules directory managementCargo.toml- Project configuration and dependenciesjustfile- Just command runner for common development tasks
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.
- 1mo ago First seen · 129 lines · 2,316 tokens per session scan A c95b172d9427
known AGENTS.md is an instructions file published in the GitHub repository marclove/known (3 stars, last pushed 1y ago), licensed BSD-3-Clause. It adds 2,316 tokens to every session, about $0.0093 per session on Opus 5.5. 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).
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.