gem-code-simplifier

A code-refactoring specialist that makes existing code simpler without adding features. Refactoring means changing code's structure while keeping its intended behavior and public interfaces.

In plain words
What is it for?
Use it to clean up dead code, reduce nesting and complexity, consolidate duplicates, improve names, and review changes that may affect shared code.
Why use it?
It helps remove unused code, repeated logic, confusing names, and unnecessary complexity while checking that references and contracts still work.

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/mubaidr/gem-team/gem-code-simplifier
Clone the repo
git clone --depth 1 https://github.com/mubaidr/gem-team
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 895 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 $0.00895
Opus 5 $0.00010 $0.00447
Sonnet 5 $0.00004 $0.00179
Haiku 4.5 $0.00002 $0.00089

Measured 2d ago against content hash f0ae401d74b0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 2d 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.

.apm/agents/gem-code-simplifier.agent.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 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: minimal JSON per output_format.

<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>

<output_format>

Return only fields required for this task. Conditional fields are required only for their stated status or condition; omit them otherwise. When status is failed, fail is required.

Read the full file on GitHub · 94 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. 2d ago First seen · 94 lines · 21 tokens per session scan A f0ae401d74b0

Subscribe to this mod's changes

gem-code-simplifier is an agent published in the GitHub repository mubaidr/gem-team (215 stars, last pushed 4d ago), licensed Apache-2.0. It adds 21 tokens to every session and 895 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 2026-08-30.