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/noahain/monoloth/agents-mdgit clone --depth 1 https://github.com/noahain/MonolothWhat 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 | $0.03397 | $0.03397 |
| Opus 5 | $0.01699 | $0.01699 |
| Sonnet 5 | $0.00679 | $0.00679 |
| Haiku 4.5 | $0.00340 | $0.00340 |
Grade A, and why
Monoloth 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 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.
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 — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Stack
Tauri 2 (v2.11.1) + Rust backend, vanilla JS frontend. No bundler, no package.json, no Node build step. Version 2.2.6 in Cargo.toml and tauri.conf.json. Identifier com.monoloth.app. Cross-platform (Windows/macOS/Linux). Rust 1.77.2+ and C++ Build Tools required.
Layout
src-tauri/src/—main.rs→lib.rs::run()registers plugins, restores window state, wires close handler, lists all IPC commands. Commands incommands/(one file per concern:config,fs,history,image,profile,shell,terminal,version,window). Core:pty.rs(PTY session manager),config.rs(untypedserde_json::Valuemap viaArc<Mutex<ConfigInner>>),history.rs.frontend/—index.htmlloads<script>tags in load-bearing order below. IIFE modules expose onewindow.Monolith*global each — no imports.lib/has vendoredxterm*,dom-utils.js(setswindow.MonolothUI), and plugin wrappers.style.css(~6991 lines) — flat CSS, no preprocessor.--modal-*CSS variable tokens for themeable colors.- Tests: 14
*.test.cjssuites / 90 tests infrontend/using Nodevmsandbox.cargo testfor Rust (80 tests across config, terminal, history, fs, image).
Build / test commands
No scripts. Raw commands:
# from repo root
cargo check --manifest-path src-tauri/Cargo.toml # fast typecheck
cargo test --manifest-path src-tauri/Cargo.toml # all Rust tests (80)
node --test frontend/*.test.cjs # all frontend tests (90)
node --test frontend/terminal.test.cjs # single suite
# from src-tauri/ (workdir, not --manifest-path — CLI is npm's tauri.cmd)
tauri dev # dev build with hot-reload
tauri build # release build
cargo test --manifest-path src-tauri/Cargo.toml works from repo root. node --test must run from repo root — suites hardcode repo-root-relative reads. cargo tauri is not installed; use tauri (npm's tauri.cmd) from src-tauri/. Neither tauri dev nor tauri build accepts --manifest-path.
No formatter, linter, or pre-commit. Don't introduce one without asking.
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.
- 2d ago First seen · 139 lines · 3,397 tokens per session scan A 3c80f857bcc5
Monoloth AGENTS.md is an instructions file published in the GitHub repository noahain/Monoloth (8 stars, last pushed 16d ago), licensed MIT. It adds 3,397 tokens to every session, about $0.0170 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 2026-08-31.
Other instructions, from other repositories
opentui AGENTS.md
Instructions for anomalyco/opentui, covering opentui agent guide, engineering, tooling and runtimes, verification and portable ffi.
goder AGENTS.md
AGENTS.md instructions for nullism/goder, covering agent architecture, configuration, review loop behavior, safety model and key files.
bagent AGENTS.md
AGENTS.md instructions for damienp199/bagent, covering bagent — consignes pour agents, plateforme, installer (méthode unique recommandée), pièges — à respecter impérativement and vérifier l'installation.
plannotator AGENTS.md
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solo AGENTS.md
Instructions for solo-agent/solo, covering project testing rules and project service lifecycle rules.
superset AGENTS.md
AGENTS.md instructions for superset-sh/superset, covering superset monorepo, project structure, exception: shadcn/ui components, database and releases.