Borrowing it
Nothing to install: this file belongs to mindroom-ai/mindroom. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/mindroom-ai/mindroom/main/.claude/commands/cruft.mdgit clone --depth 1 https://github.com/mindroom-ai/mindroomWrote 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.
[](https://agentmods.dev/commands/mindroom-ai/mindroom/cruft)<a href="https://agentmods.dev/commands/mindroom-ai/mindroom/cruft"><img src="https://agentmods.dev/badge/commands/mindroom-ai/mindroom/cruft/github.svg" alt="Measured on agentmods" height="20"></a>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.
<a href="https://agentmods.dev/commands/mindroom-ai/mindroom/cruft"><img src="https://agentmods.dev/badge/commands/mindroom-ai/mindroom/cruft.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00013 | $0.00911 |
| Opus 5.5 | $0.00005 | $0.00364 |
| Sonnet 5.5 | $0.00003 | $0.00182 |
| Haiku 4.5 | $0.00001 | $0.00091 |
Grade A, and why
cruft scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 17d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Anti-Cruft Review
CRITICAL: Scope Analysis
Current feature diff from main:
!git diff --merge-base origin/main
⚠️ STRICT SCOPE LIMITATION ⚠️
ONLY modify code that is part of the current feature shown in the diff above!
- If a file doesn't appear in the diff, DO NOT TOUCH IT
- Only remove cruft from files that are already being modified
- Focus exclusively on the current feature's code
- Leave all other code untouched, even if it has cruft
Review Target
Review the code at @$ARGUMENTS and ensure it follows MindRoom's core philosophy from AGENTS.md:
MANDATORY Principles to Enforce:
1. Remove Obsolete Compatibility
- Remove unjustified fallback paths, compatibility shims, version checks, and deprecated methods
- Preserve required boundaries under the Legacy Compatibility Policy and Agno Compatibility Policy
- Check documented provenance, removal criteria, and regression coverage before deleting a boundary; remove Agno workarounds only when the relevant behavioral tests pass without them
- One way to do things, not multiple
2. Radical Simplicity
- Functional over classes: Simple functions, not inheritance hierarchies
- Prefer dataclasses: Typed dataclasses over dicts
- No over-engineering: Solve TODAY's problem, not tomorrow's
- No defensive programming: Assume correct usage - no redundant checks
3. Code Hygiene
- Imports at the top: Function imports may avoid cycles or defer heavy/optional dependencies until first use, as required by AGENTS.md
- Keep deferred imports explicit (
from x import Y) with# noqa: PLC0415where needed, and preserve thetests/test_import_graph.pycontract - No unnecessary try-except: Only catch what can actually fail
- Remove unused code: Functions, imports, variables - delete ruthlessly
- No premature abstraction: Concrete implementations first
- NO DUCKTYPING: Explicit is better than implicit, so no
hasattrorgetattr, just use proper types withisinstancechecks if needed
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.
- 17d ago Changed 09502f32db6c
- 22d ago Changed 4ee6ebd33d51
- 1mo ago Changed · +1 lines 7c35c5f4f35c
- 1mo ago First seen · 80 lines · 13 tokens per session scan A d1c1956278c3
cruft is a command published in the GitHub repository mindroom-ai/mindroom (346 stars, last pushed today), licensed Apache-2.0. It adds 13 tokens to every session and 911 once invoked, about $0.0001 per session on Opus 5.5. 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.
Other commands, from other repositories
quality-gate
Run the ECC quality pipeline on demand for a file or project scope.
review
Review code changes against project conventions.
review
Review a skill for quality before merge.
review
Review the current diff against project memory.
code-review
Code review a pull request.
feature-pipeline
Run this workflow in order in one conversation, unless the user stops between steps.