janitor-device

A diagnostic and cleanup command for a slow Mac or Windows machine. It follows a staged process and requires permission before making changes.

In plain words
What is it for?
Use it to inspect the machine, choose specific cleanup actions, apply approved fixes, and compare system state before and after.
Why use it?
It identifies likely causes of poor performance while keeping cleanup reversible and separating diagnosis from fixes that may need administrator access.

Command

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 commands/arshiaecho/janitor/janitor-device
Clone the repo
git clone --depth 1 https://github.com/ArshiaEcho/janitor
Per session 26 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 109 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00026 $0.00109
Opus 5 $0.00013 $0.00055
Sonnet 5 $0.00005 $0.00022
Haiku 4.5 $0.00003 $0.00011

Measured 2d ago against content hash c7a4271a4bb8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

janitor-device 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 2d ago.

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.

plugins/janitor/commands/janitor-device.md · 7 lines

What it actually says

Load and run the janitor-device skill on the current machine. Detect the OS first, then walk the full five-phase workflow: diagnose → identify villains → present findings and ask for permission → fix (with copy-paste admin blocks for anything elevated) → verify with a before/after table and close with a custom analogy. Every mutation requires explicit user confirmation. Everything is reversible.

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. 2d ago First seen · 7 lines · 26 tokens per session scan A c7a4271a4bb8

Subscribe to this mod's changes

janitor-device is a command published in the GitHub repository ArshiaEcho/janitor (6 stars, last pushed 2mo ago), licensed MIT. It adds 26 tokens to every session and 109 once invoked, about $0.0001 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 2026-08-31.