What is Monoloth AGENTS.md?

Repository-specific instructions for Monoloth, a cross-platform desktop terminal app built with Tauri, Rust, and plain JavaScript. Tauri connects the desktop window to native Rust code.

Use them when modifying terminal sessions, configuration, history, window behavior, plugins, frontend modules, or Rust and JavaScript tests.

They explain the project's unusual file layout, script-loading order, build requirements, and test commands so changes do not break the app.

How noahain/Monoloth configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to noahain/Monoloth. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/noahain/Monoloth/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/noahain/Monoloth

Made for: Codex, OpenCode.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/noahain/monoloth/agents-md/github.svg)](https://agentmods.dev/instructions/noahain/monoloth/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/noahain/monoloth/agents-md"><img src="https://agentmods.dev/badge/instructions/noahain/monoloth/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/noahain/monoloth/agents-md"><img src="https://agentmods.dev/badge/instructions/noahain/monoloth/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 3,574 This file is loaded in full into every session.

When invoked 3,574 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.03574	$0.03574
Opus 5.5	$0.01430	$0.01430
Sonnet 5.5	$0.00715	$0.00715
Haiku 4.5	$0.00357	$0.00357

Measured 19d ago against content hash 930f63f8aaa0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

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 19d 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.

AGENTS.md · 143 lines

How it starts

The opening of the file, as written. The whole thing — 143 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 in commands/ (one file per concern: config, fs, history, image, profile, shell, terminal, version, window). Core: pty.rs (PTY session manager), config.rs (untyped serde_json::Value map via Arc<Mutex<ConfigInner>>), history.rs.
frontend/ — index.html loads <script> tags in load-bearing order below. IIFE modules expose one window.Monolith* global each — no imports. lib/ has vendored xterm*, dom-utils.js (sets window.MonolothUI), and plugin wrappers.
style.css (~6991 lines) — flat CSS, no preprocessor. --modal-* CSS variable tokens for themeable colors.
Tests: 14 *.test.cjs suites / 90 tests in frontend/ using Node vm sandbox. cargo test for 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.

Read the full file on GitHub · 143 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.

19d ago Changed · +4 lines · +177 tokens per session 930f63f8aaa0
2mo ago First seen · 139 lines · 3,397 tokens per session scan A 3c80f857bcc5

Subscribe to this mod's changes

Monoloth AGENTS.md is an instructions file published in the GitHub repository noahain/Monoloth (10 stars, last pushed 3d ago), licensed MIT. It adds 3,574 tokens to every session, about $0.0143 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.

Languages Rust ai ai-agents launcher opencode opencode-launcher tui

Monoloth AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
Monoloth AGENTS.mdnoahain/Monoloth	Instructions file	10	3d ago	MIT	A	3,574	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

Monoloth: Instructions file for Codex