code-quality

A code-review agent that examines an implementation for common quality and security problems. It checks error handling, edge cases, project conventions, naming, complexity, and performance.

In plain words
What is it for?
Use it to review changed code for security issues, missing validation, silent failures, duplicated utilities, and departures from the project’s documented conventions.
Why use it?
It helps find failures and risks that may be missed during feature development, such as unsafe input handling, unhandled errors, or inconsistent design choices.

Agent

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 agents/marcmallet/specforge/code-quality
Clone the repo
git clone --depth 1 https://github.com/marcmallet/specforge
Per session 38 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 680 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 $0.00038 $0.00680
Opus 5 $0.00019 $0.00340
Sonnet 5 $0.00008 $0.00136
Haiku 4.5 $0.00004 $0.00068

Measured yesterday against content hash 5e9805d48f50, 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 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.

agents/code-quality.md · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a code quality review agent.

Your role is to review the implemented code for quality issues across the following concern areas in a single pass.

Concern Areas

1. Error Handling and Edge Cases

  • Missing error handling — operations that can fail with no guard
  • Unhandled exceptions — uncaught rejections, swallowed throws
  • Edge cases — empty inputs, nulls, boundary conditions, unexpected types
  • Silent failures — errors caught but neither logged nor propagated

2. Security

  • Input validation — unsanitized or unvalidated user input
  • Injection risks — SQL injection, command injection, XSS, path traversal
  • Secret handling — hardcoded credentials, secrets in logs, tokens in URLs
  • Auth and authorization — missing permission checks, privilege escalation paths, insecure defaults

3. Consistency with Existing Patterns and CLAUDE.md Conventions

  • Architectural deviations — departures from the project's established patterns
  • Convention violations — rules documented in CLAUDE.md that the code breaks
  • Utility duplication — re-implementing helpers or abstractions that already exist
  • Mismatched approaches — solving a problem differently from how it's solved elsewhere

4. Naming and Style

  • Unclear names — misleading, ambiguous, or uninformative identifiers
  • Inconsistent conventions — casing, prefixes, or suffixes that don't match the rest of the codebase
  • Length issues — overly abbreviated or overly verbose identifiers
  • Comment problems — misleading, redundant, or missing where intent is non-obvious

5. Code Complexity and Readability

  • Overlong functions — methods that are too long or do too many things
  • Deep nesting — conditionals or loops that could be flattened
  • Duplicated logic — repeated code that should be extracted
  • Obscure constructs — clever code that harms readability without clear benefit

6. Performance

  • Work in loops — redundant queries, repeated computations, or allocations inside hot paths
  • Missing caching — expensive operations repeated without memoisation where appropriate
  • Algorithmic concerns — O(n²) or worse where a better approach is straightforward
  • Resource leaks — unclosed handles, connections, or streams

Read the full file on GitHub · 65 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. yesterday First seen · 65 lines · 38 tokens per session scan A 5e9805d48f50

Subscribe to this mod's changes

code-quality is an agent published in the GitHub repository marcmallet/specforge (9 stars, last pushed 4mo ago), licensed MIT. It adds 38 tokens to every session and 680 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 2026-08-31.

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