Borrowing it
Nothing to install: this file belongs to txcxgzs/ssh-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/txcxgzs/ssh-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/txcxgzs/ssh-mcpWrote 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/txcxgzs/ssh-mcp/claude-md)<a href="https://agentmods.dev/instructions/txcxgzs/ssh-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/txcxgzs/ssh-mcp/claude-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.
<a href="https://agentmods.dev/instructions/txcxgzs/ssh-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/txcxgzs/ssh-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00708 | $0.00708 |
| Opus 5.5 | $0.00283 | $0.00283 |
| Sonnet 5.5 | $0.00142 | $0.00142 |
| Haiku 4.5 | $0.00071 | $0.00071 |
Grade A, and why
ssh-mcp 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 1mo 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.
This is a copy
100% identical to ssh-mcp CLAUDE.md — 29 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 46 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ssh-mcp
MCP server that makes SSH work for AI tools. 18 tools across 4 categories: SSH environment management, diagnostics, remote operations, and higher-level ops.
Architecture
src/index.ts— CLI entry point. Starts MCP server with stdio transport. Drains pool on shutdown.src/server.ts— Creates McpServer, registers tools, re-exports all public APIs.src/tools.ts— 18 MCP tools across environment management, diagnostics, remote operations, and higher-level ops.src/ssh.ts— SSH connection primitives (connect, connectRaw, connectWithProxy, resolveConfig, exec, SFTP ops). resolveConfig usesssh -Gfor SSH config awareness. Supports ProxyJump for bastion hosts. Auto-diagnoses on connection failure.src/pool.ts— ConnectionPool class. Reuses SSH connections across tool calls with idle TTL, keepalive, and dead connection detection.src/ops.ts— Higher-level operations (multiExec, find, tail, serviceStatus). These wrap common ssh_exec patterns agents build manually.src/diagnose.ts— SSH environment diagnostics (agent, keys, known_hosts, config, connectivity). Handles both Unix and Windows OpenSSH agents.src/env.ts— SSH environment management (ensureAgent, listSshKeys, loadKey, configLookup, fixKnownHosts, checkGitSsh, testConnection). Handles Windows OpenSSH agent service.
Build
- Bundler: tsup with two entry configs (CLI with shebang, library with types).
- Linter: Biome (not ESLint).
- Tests: Vitest. Integration tests require Docker (
npm run test:integration). - TypeScript: Strict mode, ES2022 target, ESM.
Key patterns
- Auth resolution: explicit key > explicit password > SSH agent (SSH_AUTH_SOCK or Windows named pipe) > SSH config identity files > default key paths.
- resolveConfig uses
ssh -G <host>to resolve hostname aliases, user, port, identity files, and ProxyJump from ~/.ssh/config. Falls back gracefully if ssh is not installed. - ProxyJump support: connectWithProxy recursively connects through jump hosts. Jump host connections close when target connection closes.
- Windows support: detects Windows OpenSSH agent service via named pipe
\\.\pipe\openssh-ssh-agentwhen SSH_AUTH_SOCK is not set. - All SSH operations use ssh2 library with connection pooling (ConnectionPool in pool.ts). Connections are reused across tool calls with 60s idle TTL.
- Connection failures auto-diagnose: when connect/acquire fails, diagnostics run automatically and are included in the error message.
- Higher-level ops (ops.ts) use shellQuote for safe command construction.
- isValidHostname and runArgs are shared between diagnose.ts, env.ts, and ssh.ts (exported from diagnose.ts).
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.
- 1mo ago First seen · 46 lines · 708 tokens per session scan A 1806e018579d
ssh-mcp CLAUDE.md is an instructions file published in the GitHub repository txcxgzs/ssh-mcp (0 stars, last pushed 2mo ago), licensed MIT. It adds 708 tokens to every session, about $0.0028 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to ssh-mcp CLAUDE.md, differing in 29 lines, and is treated as a copy.
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