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 instructions/lacymorrow/lacy/claude-mdgit clone --depth 1 https://github.com/lacymorrow/lacyWrote 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/instructions/lacymorrow/lacy/claude-md)<a href="https://agentmods.dev/instructions/lacymorrow/lacy/claude-md"><img src="https://agentmods.dev/badge/instructions/lacymorrow/lacy/claude-md.svg" alt="Measured on agentmods" 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 | $0.04759 | $0.04759 |
| Opus 5 | $0.02380 | $0.02380 |
| Sonnet 5 | $0.00952 | $0.00952 |
| Haiku 4.5 | $0.00476 | $0.00476 |
Grade E, and why
lacy CLAUDE.md scanned grade E with 3 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 4d 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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
| curl | `curl -fsSL https://lacy.sh/install \| bash` | Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
- `!rm -rf` → Shell (emergency bypass with `!` prefix) Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
| curl | `curl -fsSL https://lacy.sh/install \| bash` | 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.
- 4d ago First seen · 341 lines · 4,759 tokens per session scan E e1a1f092122f
lacy CLAUDE.md is an instructions file published in the GitHub repository lacymorrow/lacy (22 stars, last pushed 20d ago), with no licence file. It adds 4,759 tokens to every session, about $0.0238 per session on Opus 5. A static security scan graded it E with 3 findings (downloads and executes remote code, recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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