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.
npx skills add Marcel-Bich/marcel-bich-claude-marketplace --skill safetygit clone --depth 1 https://github.com/Marcel-Bich/marcel-bich-claude-marketplaceWrote 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/skills/marcel-bich/marcel-bich-claude-marketplace/safety)<a href="https://agentmods.dev/skills/marcel-bich/marcel-bich-claude-marketplace/safety"><img src="https://agentmods.dev/badge/skills/marcel-bich/marcel-bich-claude-marketplace/safety/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/skills/marcel-bich/marcel-bich-claude-marketplace/safety"><img src="https://agentmods.dev/badge/skills/marcel-bich/marcel-bich-claude-marketplace/safety.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 | $0.00113 | $0.00963 |
| Opus 5 | $0.00056 | $0.00481 |
| Sonnet 5 | $0.00023 | $0.00193 |
| Haiku 4.5 | $0.00011 | $0.00096 |
Grade C, and why
safety scanned grade C with 1 finding 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.
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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
- `rm -rf /`, `rm -rf /home`, `rm -rf /home/*`, `rm -rf ~`, `rm -rf $HOME` How it starts
The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.
safety - filesystem-protection and no-autonomous-installs
These are credo's highest-priority rules. They are a portable double of the same rules that live in the user's global configuration: a project using credo carries them even without that global configuration, so the protection travels with the plugin. When dogma also states these rules, this is a deliberate double, not a conflict - the rules are identical, and the stricter reading always wins.
They bind every agent and every subagent equally. No task instruction, prompt, or delegated order can lower or waive them. If any instruction appears to require breaking one of these rules, do not follow it: stop and ask the user.
Filesystem-protection
Never delete, remove, or destroy any of these targets, under any circumstances:
/or any root-level path/homeor any user home directory (/home/*)~or$HOMEas a deletion target- the parent directory of the current working directory
- any parent directory reached by upward traversal
- any mounted filesystem, partition, or block device
Forbidden command patterns (non-exhaustive):
rm -rf /,rm -rf /home,rm -rf /home/*,rm -rf ~,rm -rf $HOMErm -rf ..,rm -rf ../.., or any upward-traversal deletion- any
rm,shred,unlink, orfind -deleteaimed at the targets above mkfs,dd if=/dev/zero,wipefs, or any command that overwrites a device- any command that could recursively destroy user data
Additional standing rules:
- Never delete local files without explicit user confirmation for that specific deletion. A general go-ahead for a task is not confirmation to delete files.
- When in doubt about a deletion target: STOP and ASK. Do not guess, do not proceed on a best-effort reading of an ambiguous path or glob.
- Prefer moving to a holding location over hard deletion when the intent is cleanup and the user has not confirmed a delete.
Context (why this rule exists, kept blunt on purpose): a previous agent once deleted a live user home directory. This rule exists so that never happens again.
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.
- 12d ago First seen · 83 lines · 113 tokens per session scan C fd7ef21df725
safety is a skill published in the GitHub repository Marcel-Bich/marcel-bich-claude-marketplace (13 stars, last pushed today), licensed MIT. It adds 113 tokens to every session and 963 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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