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/anzax/dockashell/claude-mdgit clone --depth 1 https://github.com/anzax/dockashellWhat 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 | $0.00656 | $0.00656 |
| Opus 5 | $0.00328 | $0.00328 |
| Sonnet 5 | $0.00131 | $0.00131 |
| Haiku 4.5 | $0.00066 | $0.00066 |
Grade A, and why
dockashell 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 3d 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 — 78 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.
Development Commands
Testing
npm test- Run all unit testsnpm run test:integration- Run integration testsnode --test test/specific-file.test.js- Run single test file
Architecture Overview
DockaShell is an MCP (Model Context Protocol) server that provides AI agents with isolated Docker containers for secure code execution. The architecture consists of several key layers:
Core Components
MCP Server Layer (src/mcp/):
mcp-server.js- Main MCP server implementation with tool registrationtools/- MCP tool implementations (project, execution, logging tools)remote/- Remote MCP server with web authentication for multi-user scenarios
Core Management Layer (src/core/):
project-manager.js- Handles project configuration, validation, and devcontainer parsingcontainer-manager.js- Docker container lifecycle management and executionsecurity.js- Security policies and command validation
CLI Layer (src/cli/):
cli.js- Main CLI entry point with command registrationcommands/- Individual CLI commands (build, create, start, stop, logs, etc.)utils/- CLI utilities for Docker operations, validation, and output formatting
TUI Layer (src/tui/):
tui-launcher.js- Terminal UI entry pointapp.js- Main TUI application componentcomponents/- React Ink UI components for project selection, log viewing, etc.stores/- State management using nanostores for project data, traces, filters
Key Design Patterns
Project Isolation: Each project runs in its own Docker container with persistent state, mounted directories, and port forwarding. Projects are configured via ~/.dockashell/projects/{name}/config.json.
Trace Logging: All agent actions are logged to JSONL files in ~/.dockashell/projects/{name}/traces/ for full auditability and TUI display.
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.
- 3d ago First seen · 78 lines · 656 tokens per session scan A 50184c80edea
dockashell CLAUDE.md is an instructions file published in the GitHub repository anzax/dockashell (30 stars, last pushed 1y ago), licensed Apache-2.0. It adds 656 tokens to every session, about $0.0033 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
vibesdk AGENTS.md
AGENTS.md instructions for cloudflare/vibesdk, covering agents.md, tooling, verification, frontend ui and frontend data fetching.
ironcurtain CLAUDE.md
Instructions for provos/ironcurtain, covering claude.md, general workflow, git & worktrees, git workflow and platform considerations.
ironcurtain security-boundary.instructions.md
Instructions for provos/ironcurtain, covering security boundary review rules, mandatory checks and structural invariant order.
senpi AGENTS.md
Instructions for code-yeongyu/senpi, covering senpi repository guide, mandatory execution protocols — non-negotiable, protocol 1 — explicitly requested modifications, protocol 2 — user-requested pr reviews and structure.
ironcurtain types.instructions.md
Instructions for provos/ironcurtain, covering types review rules and mandatory checks.
sortie copilot-instructions.md
Instructions for sortie-ai/sortie, covering sortie coding & review standards, 1. layered imports (downward only; violation is critical), 2. concurrency safety, 3. workspace path safety (critical: security boundary) and 4. persistence (sqlite).