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 KalarisLabs/Skill-Doctor --skill rust-testinggit clone --depth 1 https://github.com/KalarisLabs/Skill-DoctorWrote 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/kalarislabs/skill-doctor/rust-testing)<a href="https://agentmods.dev/skills/kalarislabs/skill-doctor/rust-testing"><img src="https://agentmods.dev/badge/skills/kalarislabs/skill-doctor/rust-testing/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/kalarislabs/skill-doctor/rust-testing"><img src="https://agentmods.dev/badge/skills/kalarislabs/skill-doctor/rust-testing.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 | $0.00039 | $0.00346 |
| Opus 5 | $0.00019 | $0.00173 |
| Sonnet 5 | $0.00008 | $0.00069 |
| Haiku 4.5 | $0.00004 | $0.00035 |
Grade A, and why
rust-testing scanned grade A with 0 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Testing
Canonical policy: TESTING.md. Do not invent a second harness.
Placement
| Kind | Where |
|---|---|
| Unit | #[cfg(test)] next to the code |
| Integration | crates/<name>/tests/ |
| CLI / exit codes | tests/cli/ against the compiled binary |
| Fixtures | tests/fixtures/{benign,attack,hard_negative,evasion}/ |
| Real malware | tests/fixtures/real_malware/, #[ignore], REAL_MALWARE=1 |
Detector PR checklist (all four)
- Engine or YARA rule
- Positive fixture (must fire)
- Hard-negative (must not fire)
- Test asserting both
Always-on property tests
- Determinism: two scans, equal SHA-256 of JSON.
- Additive-only: L1 CRITICAL + L2 "benign" → CRITICAL remains.
- Offline:
--offlinemakes zero network syscalls (at least: noreqwestconstructed). - Malformed skill: does not panic.
Forbidden
- Network in unit tests.
thread::sleepfor sandbox.- Snapshots with timestamps or absolute paths.
- Live secrets. Use canaries like
AKIA_TEST_CANARY. - Speed assertions in the every-commit suite (see
rust-perf).
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 · 41 lines · 39 tokens per session scan A 154820c5fe28
rust-testing is a skill published in the GitHub repository KalarisLabs/Skill-Doctor (11 stars, last pushed today), licensed Apache-2.0. It adds 39 tokens to every session and 346 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-11.
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