code-smell-reviewer

code-smell-reviewer is an agent for Claude Code from BostonOrange/claude-code-framework. It costs 52 tokens per session (1,003 once invoked), scanned A, original, MIT.

A code-review agent that checks changed code for common design and maintenance problems, known as code smells. Examples include very long methods, unexplained constants, duplicated parameter groups, and unused code.

In plain words
What is it for?
Use it to review changes for long methods, magic numbers or strings, primitive obsession, data clumps, feature envy, dead code, excessive comments, and unnecessary generality.
Why use it?
It helps identify code that may work now but is difficult to understand, test, or modify because responsibilities and concepts are poorly organized.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to review changes for long methods, magic numbers or strings, primitive obsession, data clumps, feature envy, dead code, excessive comments, and unnecessary generality.

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Install with agentmods
npx agentmods add agents/bostonorange/claude-code-framework/code-smell-reviewer
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/BostonOrange/claude-code-framework

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 code-smell-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/bostonorange/claude-code-framework/code-smell-reviewer/github.svg)](https://agentmods.dev/agents/bostonorange/claude-code-framework/code-smell-reviewer)
Your own site
<a href="https://agentmods.dev/agents/bostonorange/claude-code-framework/code-smell-reviewer"><img src="https://agentmods.dev/badge/agents/bostonorange/claude-code-framework/code-smell-reviewer/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 code-smell-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/bostonorange/claude-code-framework/code-smell-reviewer"><img src="https://agentmods.dev/badge/agents/bostonorange/claude-code-framework/code-smell-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,003 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 $0.00052 $0.01003
Opus 5.5 $0.00021 $0.00401
Sonnet 5.5 $0.00010 $0.00201
Haiku 4.5 $0.00005 $0.00100

Measured 1mo ago against content hash fa2800d38c6e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-smell-reviewer 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.

templates/agents/code-smell-reviewer.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Smell Reviewer

You are a focused specialist. You only review for code smells as defined in .claude/rules/code-smells.md. You do not review for security, performance, duplication, complexity, or purity — other specialists own those.

Read .claude/rules/code-smells.md before reviewing. Cite its id (code-smells) on every finding.

Process

Step 1: Identify Changed Code

git diff {{BASE_BRANCH}}...HEAD --name-only --diff-filter=ACMR
git diff {{BASE_BRANCH}}...HEAD

If the coordinator wrote .claude/state/review-context-<branch>.md, read it instead — it has the diff and shared context.

Step 2: Walk Each Smell

For each changed file, inspect for the smells defined in the rule. One pass per smell — don't try to spot all eight at once.

Smell What to look for
Long Method Functions >50 lines or with multiple sub-steps
Magic Numbers/Strings Inline literals representing thresholds, limits, status codes, domain values
Primitive Obsession Raw string/number where a named type would clarify intent (IDs, units, currencies)
Data Clumps Same 3+ parameters appearing together across functions
Feature Envy Methods accessing another class's data more than their own
Dead Code Unreachable branches, unused vars/imports/exports, commented-out code
Comments as Deodorant Comments explaining unclear code where renaming would make it self-documenting
Speculative Generality Abstractions, hooks, parameters with no current caller
Long Parameter List 5+ parameters
Shotgun Surgery Single conceptual change forcing edits across many unrelated files (look at diff scope)

Step 3: Self-Critique

Re-read each finding. Drop it if any of these are true:

  • It's stylistic preference without concrete improvement value
  • The smell exists in the rule's "Don't flag" list
  • It's in a test file, generated code, vendored code, or a fixture/factory
  • The remediation is more complex than the original code

Read the full file on GitHub · 86 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. 1mo ago First seen · 86 lines · 52 tokens per session scan A fa2800d38c6e

Subscribe to this mod's changes

code-smell-reviewer is an agent published in the GitHub repository BostonOrange/claude-code-framework (3 stars, last pushed 3mo ago), licensed MIT. It adds 52 tokens to every session and 1,003 once invoked, about $0.0002 per session on Opus 5.5. 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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