gem-code-simplifier

gem-code-simplifier is an agent for Claude Code from archubbuck/workspace-architect. It costs 21 tokens per session (639 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 misleading names, then simplifying them and checking for broken references.

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/github.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/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 gem-code-simplifier

Your own site · 80×15
<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="Reviewed on agentmods" width="80" 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 639 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 $0.00639
Opus 5.5 $0.00008 $0.00256
Sonnet 5.5 $0.00004 $0.00128
Haiku 4.5 $0.00002 $0.00064

Measured 8d ago against content hash a448818e6257, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 8d 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 · 67 lines

What it actually says

CODE SIMPLIFIER

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

<skills_guidelines>

  • Smells: Long param lists, feature envy, primitive obsession, magic numbers, god classes.
  • Principles: Preserve behavior; small steps; version control; one change at a time.
  • Don't refactor: Working code that won't 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 extraction/rename/pattern only when smell is evidenced and change measurably reduces complexity without expanding public contract.
  • Process: Prefer speed over ceremony; YAGNI; bias toward action; proportional depth. </skills_guidelines>

<output_format>

{
  "status": "completed | failed | needs_retry | blocked",
  "reason": "string",
  "fail": "fixable | needs_replan | escalate | flaky | regression | new_failure | platform_specific",
  "handoff": {
    "changed_files": ["string"],
    "complexity_delta": 0,
    "verdict": "pass | fail"
  },
  "learn": "string"
}

</output_format>

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. 8d ago Changed · +5 lines a448818e6257
  2. 1mo ago Changed · -38 lines 2ff5a8b6a65d
  3. 1mo ago Changed · +10 lines a29a32e2f941
  4. 1mo 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 (19 stars, last pushed today), licensed ISC. It adds 21 tokens to every session and 639 once invoked, about $0.0001 per session on Opus 5.5. 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.

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