Monitor Claude

Run a read-only health check of all Claude Code sessions on this Windows machine and present the results. The check never kills anything — it only reports and suggests commands.

Run it

Execute the bundled PowerShell script (it lives next to this SKILL.md):

powershell.exe -NoProfile -NonInteractive -File "/monitor-claude.ps1"

Replace ` with the absolute path to the folder containing this skill (e.g. ~/.claude/skills/monitor-claude`).

What it reports

• System totals — count of claude.exe, cmd.exe, and node.exe, each marked OK or WARN against a threshold, with the expected count for the number of active sessions.
• Session breakdown — one row per claude.exe session: PID, age, its child cmd/node counts, and status.
• Anomalies — orphaned sessions (parent process gone), sessions spawning far more node processes than expected, and stale orphaned cmd.exe left running for hours.
• Snapshot history — last few recorded session starts, if a snapshot log exists (optional; degrades gracefully when absent).
• Suggested actions — ready-to-paste taskkill commands for any flagged session.

Thresholds live at the top of the script ($WARN_CLAUDE, $WARN_NODE, $WARN_CMD, $WARN_AGE_H, $EXPECTED_PER_SESSION) — tune them to your machine.

After showing the output

Present the script output to the user as-is (it is already formatted). Then:

• If anomalies or WARN states are present, briefly explain what each means and what the suggested kill commands will do.
• If the user asks to kill a specific session, remind them to run the taskkill command in elevated PowerShell or CMD (not Git Bash — the /T /F flags get path-mangled there).
• If the user asks to kill all sessions, remind them this will terminate all Claude Code windows, including the current one.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: david-vrba
• Source: david-vrba/claude-power-skills
• License: MIT

Install and usage instructions live in the source repository linked above.