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/hmohamed01/claude-code-plugins/rust-knowledgenpx skills add hmohamed01/claude-code-plugins --skill rust-knowledgegit clone --depth 1 https://github.com/hmohamed01/claude-code-pluginsWhat 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 | $0.00116 | $0.02139 |
| Opus 5 | $0.00058 | $0.01069 |
| Sonnet 5 | $0.00023 | $0.00428 |
| Haiku 4.5 | $0.00012 | $0.00214 |
Grade C, and why
rust-knowledge scanned grade C with 2 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 yesterday.
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.
- Rust toolchain installed via rustup: `curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh` Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- Rust toolchain installed via rustup: `curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh` 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 ships with it
15 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- assets/Cargo.toml.template 1.0 KB
- assets/clippy.toml 495 B
- assets/rustfmt.toml 488 B
- references/async-rust.md 6.0 KB
- references/cargo.md 5.7 KB
- references/clippy.md 4.2 KB
- references/error-handling.md 5.3 KB
- references/frameworks.md 7.4 KB
- references/ownership.md 4.4 KB
- references/testing.md 5.2 KB
- references/troubleshooting.md 6.7 KB
- references/wasm.md 5.8 KB
- scripts/format_lint.sh 1.6 KB runs code
- scripts/new_project.sh 1.5 KB runs code
- scripts/run_tests.sh 1.3 KB runs code
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.
- yesterday First seen · 250 lines · 116 tokens per session scan C 784501a1648e
rust-knowledge is a skill published in the GitHub repository hmohamed01/claude-code-plugins (7 stars, last pushed 6mo ago), with no licence file. It adds 116 tokens to every session and 2,139 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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