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/ryanstephen/lil-agents/claude-mdgit clone --depth 1 https://github.com/ryanstephen/lil-agentsWrote 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/ryanstephen/lil-agents/claude-md)<a href="https://agentmods.dev/instructions/ryanstephen/lil-agents/claude-md"><img src="https://agentmods.dev/badge/instructions/ryanstephen/lil-agents/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 | $0.00482 | $0.00482 |
| Opus 5 | $0.00241 | $0.00241 |
| Sonnet 5 | $0.00096 | $0.00096 |
| Haiku 4.5 | $0.00048 | $0.00048 |
Grade A, and why
lil-agents 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 4d 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 — 38 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Building
Open lil-agents.xcodeproj in Xcode and build the LilAgents scheme. No command-line build system is configured.
Architecture Overview
This is a macOS AppKit application that displays animated characters walking on the Dock, providing a GUI for AI CLI tools.
Core Components
LilAgentsController — Central coordinator running a CVDisplayLink tick loop. Calculates Dock geometry from com.apple.dock defaults, positions characters above the Dock area.
WalkerCharacter — Individual character with:
- AVPlayerLayer for transparent HEVC video animation
- Per-character
providerandsizestored in UserDefaults ("{name}Provider","{name}Size") - Manages popover terminal window and AI session lifecycle
AgentSession — Protocol for CLI interaction. Each provider has a session class:
ClaudeSession— NDJSON streaming (--output-format stream-json)CodexSession,CopilotSession,GeminiSession,OpenCodeSession— similar patterns
ShellEnvironment — Resolves user's login shell PATH via /bin/zsh -l -i -c env to locate CLI binaries. Caches results. Removes CLAUDECODE/CLAUDE_CODE_ENTRYPOINT from spawned process environment to prevent nested session detection.
TerminalView — AppKit view rendering themed terminal with basic Markdown support and auto-scrolling.
PopoverTheme — Centralized styling (colors, fonts) for terminal UI.
Key Patterns
- Dock positioning: Reads
tilesize,persistent-apps,persistent-others,show-recentsfromcom.apple.dockdefaults to calculate Dock width - Window level: Characters use
NSWindow.Level.statusBar + iwhere i is sorted by x-position - CLI discovery:
ShellEnvironment.findBinary()checks shell PATH first, then fallback paths like~/.local/bin,/opt/homebrew/bin - Per-character config: Each WalkerCharacter persists its own provider/size via UserDefaults with name-prefixed keys
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.
- 4d ago First seen · 38 lines · 482 tokens per session scan A a47cdb0fb407
lil-agents CLAUDE.md is an instructions file published in the GitHub repository ryanstephen/lil-agents (1,444 stars, last pushed 5mo ago), licensed MIT. It adds 482 tokens to every session, about $0.0024 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
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).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
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 oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
next.js AGENTS.md
Instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.