desktop-commander_skill

Overview

This skill provides direct control over a local machine using Desktop Commander MCP. I use targeted, verifiable tool calls to read, search, edit files, manage Excel/PDFs, run terminal commands and REPLs, and inspect or terminate processes. The skill emphasizes small, safe steps, clear rollbacks, and explicit confirmation for high-risk actions.

How this skill works

I translate user requests into specific Desktop Commander MCP operations such as read_file, edit_block, write_file, start_process, interact_with_process, and read_process_output. Searches use start_search and pagination; edits use edit_block for precise replacements or chunked write_file for large rewrites. For interactive sessions I start a process, then stream input/output and manage sessions with list_sessions/list_processes.

When to use it

• You need to find files or specific content across a repo or filesystem.
• You want to view, tail, or page through large text files, logs, PDFs, images, or Excel sheets.
• You must make precise, minimal edits to code, configs, or spreadsheets.
• You need to run commands, launch REPLs (Python/Node/SSH/DB), or observe long-running jobs.
• You must inspect, debug, or safely terminate processes and review recent tool calls.

Best practices

• Prefer absolute paths and explicit offsets/lengths when reading files to avoid ambiguity.
• Read before you edit; use edit_block for targeted replacements and write_file in 25–30 line chunks for rewrites.
• Treat high-risk ops as requiring explicit confirmation: killing processes, config changes, bulk edits/moves, or destructive commands.
• Use start_search + get_more_search_results for repository exploration and stop_search when done to reduce noise.
• Remember allowedDirectories limits filesystem tools, not terminal commands—don’t assume it is a sandbox.

Example use cases

• Search a codebase for a function, open the file, apply a precise 1-line fix, and verify via read_file.
• Tail a 10k-line log with offset=-200, diagnose an error, and suggest a safe config change (request confirmation before applying).
• Launch a Python REPL to run a pandas analysis on a CSV, stream results back, and save a processed Excel range via edit_block.
• Open a PDF, replace or insert pages using the appropriate PDF write tool, and return a download link.
• List active sessions, inspect a runaway process’s output, then request confirmation to terminate or force_terminate it.