check-impl

check-impl is a command for Claude Code from nwiizo/ccswarm. It costs 0 tokens per session (327 once invoked), scanned A, original, MIT.

A basic Rust workspace verification command. It checks formatting, lint warnings, tests, and release compilation, then reports the results in a fixed JSON structure.

In plain words
What is it for?
Use it after making changes to a Rust workspace to verify formatting, Clippy lint checks, tests, and the production build.
Why use it?
It catches common implementation errors and style problems before code is treated as complete.

Command for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it after making changes to a Rust workspace to verify formatting, Clippy lint checks, tests, and the production build.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/nwiizo/ccswarm/check-impl
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.

Clone the repo
git clone --depth 1 https://github.com/nwiizo/ccswarm

Made for: Claude Code.

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/commands/nwiizo/ccswarm/check-impl/github.svg)](https://agentmods.dev/commands/nwiizo/ccswarm/check-impl)
Your own site
<a href="https://agentmods.dev/commands/nwiizo/ccswarm/check-impl"><img src="https://agentmods.dev/badge/commands/nwiizo/ccswarm/check-impl/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.

agentmods 80×15 button for check-impl

Your own site · 80×15
<a href="https://agentmods.dev/commands/nwiizo/ccswarm/check-impl"><img src="https://agentmods.dev/badge/commands/nwiizo/ccswarm/check-impl.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 327 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00000 $0.00327
Opus 5.5 $0.00000 $0.00131
Sonnet 5.5 $0.00000 $0.00065
Haiku 4.5 $0.00000 $0.00033

Measured 1mo ago against content hash c44df03cdeaa, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 1mo 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.

.claude/commands/check-impl.md · 58 lines

What it actually says

Implementation Check

Runs basic checks on the ccswarm workspace.

Execution Content

# 1. Format/Lint
cargo fmt --all --check && cargo clippy --workspace -- -D warnings

# 2. Tests
cargo test --workspace

# 3. Build verification
cargo build --workspace --release

Check Items

Item Command Criteria
Format cargo fmt --all --check No errors
Lint cargo clippy --workspace -- -D warnings No warnings
Tests cargo test --workspace All pass
Build cargo build --workspace No errors

Rust 2024 Edition Support

ccswarm uses Rust 2024 Edition. Note the following:

  • std::env::set_var requires unsafe block
  • Pattern matching has implicit borrowing so ref/ref mut are unnecessary
  • Explicit type annotations are required more often

Output Format

{
  "format": "OK|NG",
  "clippy": {
    "warnings": N,
    "errors": N
  },
  "test": {
    "passed": N,
    "failed": N,
    "ignored": N
  },
  "build": "OK|NG",
  "overall": "OK|NG"
}
  • /review-all - Full review (includes design compliance and quality)
  • /review-duplicates - Duplicate code detection
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. 1mo ago First seen · 58 lines · 0 tokens per session scan A c44df03cdeaa

Subscribe to this mod's changes

check-impl is a command published in the GitHub repository nwiizo/ccswarm (153 stars, last pushed 6d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 327 tokens. 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.