check-impl

check-impl is a skill for Claude Code, Codex from nwiizo/ccswarm. It costs 21 tokens per session (164 once invoked), scanned A, original, MIT.

A verification checklist for a Rust workspace that runs formatting, linting, tests, and a build.

In plain words
What is it for?
Use it to run cargo fmt, cargo clippy, cargo test, and cargo build, then report the results in a structured format.
Why use it?
It catches formatting problems, compiler or lint warnings, failing tests, and build errors before changes are considered complete.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/nwiizo/ccswarm/check-impl
Any agent
npx skills add nwiizo/ccswarm --skill check-impl
Clone the repo
git clone --depth 1 https://github.com/nwiizo/ccswarm

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for check-impl

README.md
[![agentmods](https://agentmods.dev/badge/skills/nwiizo/ccswarm/check-impl.svg)](https://agentmods.dev/skills/nwiizo/ccswarm/check-impl)
Your own site
<a href="https://agentmods.dev/skills/nwiizo/ccswarm/check-impl"><img src="https://agentmods.dev/badge/skills/nwiizo/ccswarm/check-impl.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 164 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00021 $0.00164
Opus 5 $0.00010 $0.00082
Sonnet 5 $0.00004 $0.00033
Haiku 4.5 $0.00002 $0.00016

Measured 4d ago against content hash 0c6ca7088d5d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

check-impl 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 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.

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.

.agents/skills/check-impl/SKILL.md · 26 lines

What it actually says

Run implementation checks on the ccswarm workspace:

# 1. Format check
cargo fmt --all --check

# 2. Lint check
cargo clippy --workspace -- -D warnings

# 3. Tests
cargo test --workspace

# 4. Build verification
cargo build --workspace

Note: ccswarm uses Rust 2024 Edition. std::env::set_var requires unsafe, pattern matching has implicit borrowing.

Report results as JSON: { format, clippy: { warnings, errors }, test: { passed, failed, ignored }, build, overall }.

Changes

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.

  1. 4d ago First seen · 26 lines · 21 tokens per session scan A 0c6ca7088d5d

Subscribe to this mod's changes

check-impl is a skill published in the GitHub repository nwiizo/ccswarm (149 stars, last pushed 1mo ago), licensed MIT. It adds 21 tokens to every session and 164 once invoked, about $0.0001 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 2026-08-30.

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