relocate-claude-vm

relocate-claude-vm is a skill for Claude Code, Codex from ibrews/claude-fleet. It costs 98 tokens per session (1,582 once invoked), scanned A, original, MIT.

A procedure for moving Claude Desktop’s Computer Use virtual-machine files from a nearly full Windows system drive to another local NTFS drive. It leaves a directory junction, which makes the moved folder appear at its original path.

In plain words
What is it for?
Use it to relocate the Claude Desktop virtual-machine bundle when another drive has enough free space. It checks for an active Computer Use session and avoids moving the files during an application update.
Why use it?
It frees system-drive space while allowing Claude Desktop to keep using the path it expects. It is intended for cases where the virtual-machine bundle is consuming substantial storage.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to relocate the Claude Desktop virtual-machine bundle when another drive has enough free space. It checks for an active Computer Use session and avoids moving the files during an application update.

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Install with agentmods
npx agentmods add skills/ibrews/claude-fleet/relocate-claude-vm
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.

Any agent
npx skills add ibrews/claude-fleet --skill relocate-claude-vm
Clone the repo
git clone --depth 1 https://github.com/ibrews/claude-fleet

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for relocate-claude-vm

README.md
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Your own site
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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.

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Your own site · 80×15
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Per session 98 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,582 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00098 $0.01582
Opus 5 $0.00049 $0.00791
Sonnet 5 $0.00020 $0.00316
Haiku 4.5 $0.00010 $0.00158

Measured 12d ago against content hash 39d5214eebd3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

relocate-claude-vm 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 12d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (macos.sh, windows.ps1), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/relocate-claude-vm/SKILL.md · 100 lines

How it starts

The opening of the file, as written. The whole thing — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Relocate Claude Desktop's Computer Use VM bundle

The Claude Desktop app downloads a multi-GB sandboxed VM image to power its local Computer Use / code-execution features. The app provides no in-app setting to relocate it. On a system drive that's already tight, this bundle can be the single biggest space consumer — bigger than the user's Documents folder.

This skill moves the bundle to a target drive and leaves a directory junction (Windows) or symbolic link (macOS — not yet implemented) at the original location, so Claude Desktop sees the same path it expects.

When to use this skill

  • A disk scan shows C:\Users\<user>\AppData\Roaming\Claude\vm_bundles\ is a top consumer (typically 11-13 GB)
  • The system drive is below 15% free and you've already cleared regenerable caches (npm, pip, Windows Update, temp)
  • The user has at least 25 GB free on another local NTFS volume (need room for the move + headroom)

Do not use this skill when:

  • Claude Desktop is mid-update — finish the update first; MSIX state during an update is brittle
  • The VHDX is currently in use by an active Computer Use session — the move will fail (the script checks for this and aborts cleanly)
  • The destination is a network drive, removable drive, or non-NTFS volume — VHDX-backed VMs need local fixed NTFS storage

What the bundle actually contains

Inside %APPDATA%\Claude\vm_bundles\claudevm.bundle\ you'll typically find:

File Typical size Purpose
rootfs.vhdx ~9 GB The mounted VM root filesystem image (QEMU VHDX v2 format — magic bytes vhdxfile)
sessiondata.vhdx ~0.5 GB Per-session writable disk
smol-bin.vhdx ~35 MB Small helper image
initrd, vmlinuz ~180 MB combined Linux kernel + initial ramdisk
*.zst archives ~2.4 GB Compressed source bundles (used to re-extract the VHDX if corrupted)
.*.origin files tiny Manifest sidecars referencing the source archives

The conversation history people often assume is in this folder is not here — Claude Desktop conversations live server-side at Anthropic, with only a small (~250 MB) Electron cache locally in Cache, Code Cache, etc.

Read the full file on GitHub · 100 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 12d ago First seen · 100 lines · 98 tokens per session scan A 39d5214eebd3

Subscribe to this mod's changes

relocate-claude-vm is a skill published in the GitHub repository ibrews/claude-fleet (22 stars, last pushed 9d ago), licensed MIT. It adds 98 tokens to every session and 1,582 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.