ssh-client-mcp-server: Instructions file for Claude Code

CLAUDE.md

ssh-client-mcp-server CLAUDE.md is an instructions file for Claude Code from jordanburke/ssh-client-mcp-server. It costs 2,090 tokens per session, scanned A, original, MIT.

Development instructions for an SSH client MCP server in a pnpm monorepo, a repository containing several related packages managed together. SSH securely runs commands on another computer, while tmux keeps terminal sessions running.

In plain words
What is it for?
Use it when developing or validating the single-host SSH server, the multi-host fleet server, their shared SSH and tmux code, authentication, and TOML fleet configuration.
Why use it?
It gives contributors the project structure, package responsibilities, configuration locations, and validation command needed to work on the repository correctly.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is jordanburke/ssh-client-mcp-server's own configuration. It tells Claude Code how to work on ssh-client-mcp-server itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ssh-client-mcp-server configures →

Reuse

Borrowing it

Nothing to install: this file belongs to jordanburke/ssh-client-mcp-server. 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/jordanburke/ssh-client-mcp-server/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/jordanburke/ssh-client-mcp-server

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Per session 2,090 This file is loaded in full into every session.
When invoked 2,090 The same file — it is already loaded in full.
Security scan A 1 finding. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.02090 $0.02090
Opus 5.5 $0.00836 $0.00836
Sonnet 5.5 $0.00418 $0.00418
Haiku 4.5 $0.00209 $0.00209

Measured yesterday against content hash 0f5368b5bbb0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ssh-client-mcp-server CLAUDE.md scanned grade A with 1 finding 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 yesterday.

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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

- **`proc.ts`** — `ProcessRunner` seam over `child_process` (`run` to completion, `spawn` a long-lived child) and `childEnv`, the allowlisted environment every OpenSSH child gets.
CLAUDE.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 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

This is a pnpm monorepo containing three packages:

Package npm name Role
packages/core @ssh-mcp/core (private) Shared SSH pool (createPool), tmux command builders (tmuxList/tmuxSend/tmuxRead/tmuxKeys), auth resolution (resolveAuth), and SSH exec helpers. Bundled into both servers; not published separately, so it must stay a devDependency of each (test/package.spec.ts guards this).
packages/connector ssh-client-mcp-server Single-host MCP server — exec + tmux_* tools for one SSH host, configured via CLI flags.
packages/orchestrator ssh-fleet-mcp-server Multi-host fleet MCP server — hosts_list, fleet_setup + host-routed exec/tmux_* tools and a check subcommand, driven by a TOML fleet config (--config= flag or SSH_FLEET_CONFIG env or ~/.config/ssh-fleet/fleet.toml).

Both servers consume @ssh-mcp/core for all SSH and tmux logic. Run the full suite with pnpm -r validate. After a build, pnpm check:package packs both servers, inspects the tarballs, installs them, and starts them through npm's bin link.

The connector package (ssh-client-mcp-server) retains its original published identity and public API unchanged.

Development Commands

Each package delegates all tooling to ts-builds. Run from the repo root to hit all packages:

  • Validate all: pnpm -r validate - Full chain per package: format → lint → typecheck → test → build
  • Per-package: cd packages/<name> && pnpm validate

Within any package:

  • Build: pnpm build - Production build via tsdown → dist/ (dev builds go to lib/)
  • Dev: pnpm dev - tsdown watch mode
  • Test: pnpm test / pnpm test:watch / pnpm test:coverage
  • Lint/Format: pnpm lint / pnpm format (both auto-fix); *:check variants for CI
  • Inspect (connector/orchestrator): pnpm inspect - Build + launch MCP Inspector

Read the full file on GitHub · 94 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. yesterday Changed · +21 tokens per session 0f5368b5bbb0
  2. 4d ago Changed · -2 lines · +38 tokens per session c7909ed9da32
  3. 5d ago Changed · +2 lines · +127 tokens per session f40539142066
  4. 6d ago Changed · +3 lines · +237 tokens per session bf34cd680a50
  5. 9d ago Changed · +3 lines · +158 tokens per session 963786298ac6
  6. 18d ago Changed · +1 lines · +75 tokens per session 6263858d87e4
  7. 19d ago Changed · +1 lines · +61 tokens per session 569de8f42c04
  8. 2mo ago First seen · 86 lines · 1,373 tokens per session scan A 648002e9d14a

Subscribe to this mod's changes

ssh-client-mcp-server CLAUDE.md is an instructions file published in the GitHub repository jordanburke/ssh-client-mcp-server (3 stars, last pushed yesterday), licensed MIT. It adds 2,090 tokens to every session, about $0.0084 per session on Opus 5.5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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