gem-code-simplifier

gem-code-simplifier is an agent for Claude Code from archubbuck/workspace-architect. It costs 21 tokens per session (915 once invoked), scanned A, a copy of gem-code-simplifier, ISC.

A code-refactoring specialist that removes unused code, reduces complexity, combines duplicate logic, and improves names without adding features.

In plain words
What is it for?
It is for finding dead code, deeply nested logic, repeated code, and misleading names, then simplifying them and checking for broken references.
Why use it?
It helps make existing code easier to understand and maintain while protecting its public interfaces and behavior.

Agent for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: mentions subagents.

Good fit It is for finding dead code, deeply nested logic, repeated code, and…

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/archubbuck/workspace-architect/gem-code-simplifier
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/archubbuck/workspace-architect

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 gem-code-simplifier

README.md
[![agentmods](https://agentmods.dev/badge/agents/archubbuck/workspace-architect/gem-code-simplifier.svg)](https://agentmods.dev/agents/archubbuck/workspace-architect/gem-code-simplifier)
Your own site
<a href="https://agentmods.dev/agents/archubbuck/workspace-architect/gem-code-simplifier"><img src="https://agentmods.dev/badge/agents/archubbuck/workspace-architect/gem-code-simplifier.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 915 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 100% copy Near-identical to another mod 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 $0.00021 $0.00915
Opus 5 $0.00010 $0.00458
Sonnet 5 $0.00004 $0.00183
Haiku 4.5 $0.00002 $0.00092

Measured 3d ago against content hash c76b1e1fad25, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

gem-code-simplifier 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.

Origin

This is a copy

100% identical to gem-code-simplifier — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

assets/agents/gem-code-simplifier.agent.md · 90 lines

How it starts

The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CODE SIMPLIFIER: Remove dead code, reduce complexity, consolidate duplicates, improve naming.

Role

Remove dead code, reduce complexity, consolidate duplicates, improve naming. Never add features. Deliver cleaner code.

MANDATORY: Adhere strictly to the defined workflow and rules below: no improvisation.

Workflow

  • Determine analysis types: dead code (git blame/tests), complexity (cyclomatic/nesting), duplication (>3 line matches), naming (misleading/generic).
  • Impact triage: note exported/imported symbols; flag blast radius > single file for reviewer.
  • Simplify using skills_guidelines: remove unused imports/vars -> remove dead code -> rename -> flatten -> extract -> reduce complexity -> consolidate duplicates.
  • Process affected code from leaf consumers toward shared dependencies. Never break module contracts or public APIs.
  • Verify: run verification after edits changing behavior, contracts, interfaces, dependencies, or elevated blast radius. On failure, revert/escalate. Integration check: no broken refs.
  • Output: a raw JSON object per output_format. No markdown fences, no prose.

<skills_guidelines>

Skills Guidelines

  • Code smells: Long parameter lists, feature envy, primitive obsession, magic numbers, god classes.
  • Principles: Preserve behavior; make small steps; use version control; change one thing at a time.
  • Do not refactor: Working code that will not change; critical code without tests (add tests first); code under tight deadlines.
  • Operations: Extract Method/Class; Rename; Introduce Parameter Object; Replace Conditional with Polymorphism; Magic Number -> Constant; Decompose Conditional; Guard Clauses.
  • Use an extraction, rename, or design pattern only when the corresponding smell is evidenced and the change measurably reduces complexity without expanding the public contract.
  • Process: Prefer speed over ceremony; apply YAGNI; bias toward action; use proportional depth.

</skills_guidelines>

Read the full file on GitHub · 90 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 · 90 lines · 21 tokens per session scan A c76b1e1fad25

Subscribe to this mod's changes

gem-code-simplifier is an agent published in the GitHub repository archubbuck/workspace-architect (18 stars, last pushed 3d ago), licensed ISC. It adds 21 tokens to every session and 915 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to gem-code-simplifier, differing in 0 lines, and is treated as a copy.

Related

Other agents, from other repositories

code-reviewer

A code-review agent that checks whether changes follow their specification and assesses code quality, security, maintainability, and performance. It reports findings with severity levels and file-and-line references.

sangrokjung/claude-forge · 96 tokens

security-reviewer

A read-only security review agent that checks code for common web risks, exposed secrets, unsafe input handling, authentication and authorization problems, and dependency issues. OWASP Top 10 is a widely used list of major web application security risks.

sangrokjung/claude-forge · 95 tokens

skeptical-auditor

Independent skeptical re-verification after verify-agent (or any self-verifying agent) claims a pass. Read-only and adversarial: re-runs every step that was claimed, compares actual exit codes against the claim, and is paid to find failures rather than confirm success. Never approves without executed evidence. Spawned…

sangrokjung/claude-forge · 120 tokens

al-review-subagent

Internal quality assurance subagent for Business Central AL code. Only invoked by al-conductor via Task tool. Reviews implementation against AL best practices, test coverage, and BC patterns.

javiarmesto/ALDC-AL-Development-Collection · 40 tokens

code-reviewer

Use this agent when you need to review code changes for correctness, discovered project-convention compliance, and duplicated logic. Invoke proactively after writing or modifying code, and before committing or opening a pull request. Reviews an explicit diff, pull request, or named file set; defaults to the…

rjmurillo/ai-agents · 70 tokens

pr-test-analyzer

Use this agent when you need to review a pull request for test coverage quality and completeness. This agent should be invoked after a PR is created or updated to ensure tests adequately cover new functionality and edge cases.

rjmurillo/ai-agents · 46 tokens