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/d-oit/rust-2026-template/build-rustnpx skills add d-oit/rust-2026-template --skill build-rustgit clone --depth 1 https://github.com/d-oit/rust-2026-templateWhat 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 | $0.00066 | $0.00929 |
| Opus 5 | $0.00033 | $0.00464 |
| Sonnet 5 | $0.00013 | $0.00186 |
| Haiku 4.5 | $0.00007 | $0.00093 |
Grade B, and why
build-rust 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
**Fix**: `sudo apt-get install build-essential` How it starts
The opening of the file, as written. The whole thing — 142 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill: build-rust
When to Use
- User asks for this skill's functionality
Purpose
Compile, test, and verify Rust projects following 2026 best practices.
Trigger Conditions
- When asked to build, compile, or check a Rust project
- When CI/CD pipeline needs to run build steps
- When investigating build failures or warnings
Prerequisites
- Rust toolchain installed (see
rust-toolchain.toml) cargoavailable in PATH- WSL2 environment (optional but recommended on Windows)
Steps
1. Check (fast feedback)
cargo check --all-targets --all-features 2>&1
2. Build (debug)
cargo build --all-targets 2>&1
3. Build (release)
cargo build --release 2>&1
4. Lint with Clippy
cargo clippy --all-targets --all-features -- \
-D warnings \
-W clippy::pedantic \
-W clippy::nursery \
-A clippy::module_name_repetitions
5. Format check
cargo fmt --all -- --check
6. Run tests (with nextest)
cargo nextest run --all-features
7. Doc tests
cargo test --doc --all-features
8. Report metrics
Call metrics-reporter skill.
Success Criteria
cargo checkexits 0 with no errorscargo clippyexits 0 with-D warningscargo fmt --checkexits 0- All tests pass
- No
unsafeblocks without// SAFETY:comments
Common Issues
Slow incremental builds in WSL2
Symptom: Build takes >30s even for small changes
Fix: Ensure target/ is on the Linux filesystem, not Windows mount.
See .cargo/config.toml for WSL2 disk optimization.
VS Code reloads during build
Symptom: VS Code refreshes while cargo build runs
Fix: Set files.watcherExclude for **/target/** in .vscode/settings.json
Linker errors on WSL2
Symptom: error: linker 'cc' not found
Fix: sudo apt-get install build-essential
Rationalizations
| Rationalization | Reality |
|---|---|
| "cargo build passes, so the code is correct." | Build success doesn't mean tests pass or lints are clean. Run the full pipeline. |
| "I'll skip clippy pedantic lints to save time." | Pedantic lints catch real issues. Run them in CI at minimum. |
| "Just use cargo test, nextest isn't installed." | Install nextest for parallel test execution — it's significantly faster. |
What ships with it
1 file 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.
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 · 142 lines · 66 tokens per session scan B f2941da5b89f
build-rust is a skill published in the GitHub repository d-oit/rust-2026-template (10 stars, last pushed 3d ago), licensed MIT. It adds 66 tokens to every session and 929 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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