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 agentmods add skills/cowwoc/cat/safe-remove-codenpx skills add cowwoc/cat --skill safe-remove-codegit clone --depth 1 https://github.com/cowwoc/catWhat 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 | $0.00019 | $0.04379 |
| Opus 5 | $0.00010 | $0.02190 |
| Sonnet 5 | $0.00004 | $0.00876 |
| Haiku 4.5 | $0.00002 | $0.00438 |
Grade B, and why
safe-remove-code scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
grep -n "$pattern" ~/.claude/hooks/example-hook.sh || echo " No matches" The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- 2d ago First seen · 590 lines · 19 tokens per session scan B 3ed152c923d7
safe-remove-code is a skill published in the GitHub repository cowwoc/cat (101 stars, last pushed 1mo ago), with no licence file. It adds 19 tokens to every session and 4,379 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
gsd-debug
Systematic debugging with persistent state across context resets.
gsd-execute-phase
Execute all plans in a phase with wave-based parallelization.
gsd-autonomous
Run all remaining phases autonomously — discuss→plan→execute per phase.
gsd-capture
Capture ideas, tasks, notes, and seeds to their destination.
gsd-code-review
Review source files changed during a phase for bugs, security issues, and code quality problems.
gsd-config
Configure GSD settings — workflow toggles, advanced knobs, integrations, and model profile.