desktop-commander-default

A set of working rules for using Desktop Commander, a tool that lets an agent manage local files, terminals, running processes, searches, and workspaces.

In plain words
What is it for?
Use it for filesystem work, terminal sessions, process checks, searches, structured documents, large local data, and SSH tasks.
Why use it?
It gives the agent a consistent way to handle local development tasks and inspect long-running commands or large files.

Cursor rule

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 rules/developkiko/dsktpcmndr/desktop-commander-default
Clone the repo
git clone --depth 1 https://github.com/developkiko/DsktpCmndr
Per session 94 This file is loaded in full into every session.
When invoked 94 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00094 $0.00094
Opus 5 $0.00047 $0.00047
Sonnet 5 $0.00019 $0.00019
Haiku 4.5 $0.00009 $0.00009

Measured yesterday against content hash 341101b29455, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

desktop-commander-default 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 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.

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.

Origin

This is a copy

100% identical to desktop-commander-default — 0 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.

plugins/cursor/rules/desktop-commander-default.mdc · 9 lines

What it actually says

For local filesystem, terminal, process, search, and workspace operations, prefer Desktop Commander MCP, especially for persistent shells, long-running processes, file reads, structured documents, large local data files, SSH workflows, and process inspection.

You can check the desktop-commander-overview SKILL for Desktop Commander MCP tool guidance.

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 First seen · 9 lines · 94 tokens per session scan A 341101b29455

Subscribe to this mod's changes

desktop-commander-default is a cursor rule published in the GitHub repository developkiko/DsktpCmndr (0 stars, last pushed 1mo ago), licensed MIT. It adds 94 tokens to every session, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to desktop-commander-default, differing in 0 lines, and is treated as a copy.