moat CLAUDE.md

Claude Code instructions for majorcontext/moat, covering claude.md, project overview, architecture, key flows and proxy daemon.

Instructions file

Install

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.

agentmods
npx agentmods add instructions/majorcontext/moat/claude-md
Clone the repo
git clone --depth 1 https://github.com/majorcontext/moat
Per session 3,199 This file is loaded in full into every session.
When invoked 3,199 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.03199 $0.03199
Opus 5 $0.01599 $0.01599
Sonnet 5 $0.00640 $0.00640
Haiku 4.5 $0.00320 $0.00320

Measured today against content hash aa1716770564, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

moat 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 today.

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.

CLAUDE.md · 216 lines

How it starts

The opening of the file, as written. The whole thing — 216 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.

Project Overview

Moat runs AI agents in isolated containers with credential injection and full observability. Key features:

  • Isolated Execution - Each moat runs in its own container (Docker or Apple containers) with workspace mounting
  • Credential Injection - Transparent auth header injection via TLS-intercepting proxy (agent never sees raw tokens)
  • Smart Image Selection - Automatically selects container images based on moat.yaml runtime config
  • Full Observability - Captures logs, network requests, and traces for every run
  • Declarative Config - Configure agents via moat.yaml manifests
  • Multi-Runtime Support - Automatically uses Apple containers (macOS 26+) or Docker

Architecture

cmd/moat/           CLI entry point (Cobra commands)
internal/
  audit/             Tamper-proof audit logging with cryptographic verification
  claude/            Claude Code settings and Dockerfile generation
  cli/               Shared CLI helpers (environment parsing, mount helpers)
  codex/             Codex CLI settings and Dockerfile generation
  config/            moat.yaml parsing, mount string parsing
  container/         Container runtime abstraction (Docker and Apple containers)
  credential/        Secure credential storage (GitHub, Anthropic, AWS)
  daemon/            Proxy daemon lifecycle, Unix socket API, and run registration
  image/             Runtime-based image selection (node/python/go → base image)
  log/               Structured logging (slog wrapper)
  provider/          Provider registry and interfaces (CredentialProvider, AgentProvider)
  providers/         Provider implementations:
    aws/               AWS IAM role assumption and credential endpoint
    claude/            Claude Code CLI, grants, and config generation
    codex/             Codex CLI, grants, and config generation
    github/            GitHub token management and refresh
  run/               Run lifecycle management (create/start/stop/destroy)
  storage/           Per-run storage for logs, traces, network requests
  ui/                TTY-aware colored output and formatting helpers

Read the full file on GitHub · 216 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.

  1. today First seen · 216 lines · 3,199 tokens per session scan A aa1716770564

Subscribe to this mod's changes

moat CLAUDE.md is an instructions file published in the GitHub repository majorcontext/moat (46 stars, last pushed 18d ago), licensed MIT. It adds 3,199 tokens to every session, about $0.0160 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 2026-09-01.

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