code-quality-auditor

code-quality-auditor is a command for Claude Code from mathiasbourgoin/roster. It costs 21 tokens per session (937 once invoked), scanned A, original, MIT.

A code review command that checks a project against written rules for behavior, structure, and naming. It uses the project’s knowledge-base files as its reference.

In plain words
What is it for?
Use it to check function length, repeated code, naming, invariants, module boundaries, and dependency direction, with findings tied to source lines.
Why use it?
It helps find code that breaks documented requirements or architectural boundaries without requiring separate linting tools.

Command for Claude Code

Part of the roster plugin — 5 commands, 8 agents shipped together

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 commands/mathiasbourgoin/roster/code-quality-auditor
Clone the repo
git clone --depth 1 https://github.com/mathiasbourgoin/roster

Made for: Claude Code.

Or install roster, the plugin that ships this one along with the rest of its 5 commands, 8 agents.

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 code-quality-auditor

README.md
[![agentmods](https://agentmods.dev/badge/commands/mathiasbourgoin/roster/code-quality-auditor.svg)](https://agentmods.dev/commands/mathiasbourgoin/roster/code-quality-auditor)
Your own site
<a href="https://agentmods.dev/commands/mathiasbourgoin/roster/code-quality-auditor"><img src="https://agentmods.dev/badge/commands/mathiasbourgoin/roster/code-quality-auditor.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 937 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 $0.00937
Opus 5 $0.00010 $0.00468
Sonnet 5 $0.00004 $0.00187
Haiku 4.5 $0.00002 $0.00094

Measured 3d ago against content hash ff0f5b152023, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-quality-auditor 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 3d 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/code-quality-auditor.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Quality Auditor

Check implementation against knowledge base properties and conventions. Uses only built-in tools (grep, wc, read) — no external linters required.

Steps

1. Load KB References

  • Read kb/properties.md for invariants, constraints, and quality thresholds.
  • Read kb/glossary.md for canonical naming conventions and term definitions.
  • Read kb/spec.md for architectural boundaries and module responsibilities.
  • Read kb/architecture.md (top-level and per-module, if present) for declared structural expectations — module boundaries, dependency direction, layering. Check code structure against them; a divergence is a finding (cite file:line), and expectations that are not statically verifiable are noted as such, never assumed satisfied.

2. Check: Function Size

  • Scan source files for function/method definitions.
  • Measure line count per function (use grep + wc approach).
  • Flag functions exceeding the threshold defined in properties.md (default: 50 lines if not specified).
  • Exclude test files from size checks unless properties.md says otherwise.

3. Check: DRY Violations

  • Search for duplicated code blocks (identical or near-identical sequences of 5+ lines).
  • Look for repeated patterns: duplicated error handling, copy-pasted validation logic, repeated configuration blocks.
  • Flag each duplication with both locations.

4. Check: Naming Consistency with Glossary

  • For each term in kb/glossary.md, search the codebase for variant spellings, abbreviations, or synonyms.
  • Example: if glossary defines "Transaction", flag code using "tx", "txn", "trans" inconsistently.
  • Check that type names, function names, and module names use glossary-canonical forms.

5. Check: Invariant Preservation

  • For each invariant in kb/properties.md, verify the code maintains it:
    • If an invariant says "X is never null", search for code paths where X could be null.
    • If an invariant says "Y is always called before Z", trace call sequences.
    • If an invariant says "all inputs are validated", check for unvalidated entry points.
  • This is best-effort static analysis — flag suspicious patterns, don't claim proof.

Read the full file on GitHub · 103 lines

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. 3d ago First seen · 103 lines · 21 tokens per session scan A ff0f5b152023

Subscribe to this mod's changes

code-quality-auditor is a command published in the GitHub repository mathiasbourgoin/roster (2 stars, last pushed 7d ago), licensed MIT. It adds 21 tokens to every session and 937 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 2026-08-31.