agentmods.dev

code-simplifier

A guide for simplifying code while keeping its behavior exactly the same. It focuses on understanding the project first, making small changes, reducing complexity, and preserving existing conventions.

In plain words
What is it for?
Use it when cleaning up, refactoring, reducing nesting or duplication, improving names, or applying clearer language patterns to existing code.
Why use it?
It helps make recently changed code easier to read and maintain without accidentally changing what the program does.

Skill for Claude CodeCodex

200 16d ago A scan 63 tokens original MIT
View the source file pproenca/dot-skills
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 skills/pproenca/dot-skills/code-simplifier
Any agent
npx skills add pproenca/dot-skills --skill code-simplifier
Clone the repo
git clone --depth 1 https://github.com/pproenca/dot-skills

Made for: Claude Code, Codex.

Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,999 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 $0.00063 $0.01999
Opus 5 $0.00032 $0.01000
Sonnet 5 $0.00013 $0.00400
Haiku 4.5 $0.00006 $0.00200

Measured yesterday against content hash 1850c855a636, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 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.

skills/.curated/code-simplifier/SKILL.md · 134 lines

How it starts

The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Community Code Simplification Best Practices

Comprehensive code simplification guide for AI agents and LLMs. Contains 47 rules across 8 categories, prioritized by impact from critical (context discovery, behavior preservation) to incremental (language idioms). Each rule includes detailed explanations, real-world examples comparing incorrect vs. correct implementations, and specific impact metrics.

Core Principles

  1. Context First: Understand project conventions before making any changes
  2. Behavior Preservation: Change how code is written, never what it does
  3. Scope Discipline: Focus on recently modified code, keep diffs small
  4. Clarity Over Brevity: Explicit, readable code beats clever one-liners

When to Apply

Reference these guidelines when:

  • Simplifying or cleaning up recently modified code
  • Reducing nesting, complexity, or duplication
  • Improving naming and readability
  • Applying language-specific idiomatic patterns
  • Reviewing code for maintainability issues

Rule Categories by Priority

Priority Category Impact Prefix Rules
1 Context Discovery CRITICAL ctx- 4
2 Behavior Preservation CRITICAL behave- 6
3 Scope Management HIGH scope- 5
4 Control Flow Simplification HIGH flow- 9
5 Naming and Clarity MEDIUM-HIGH name- 6
6 Duplication Reduction MEDIUM dup- 5
7 Dead Code Elimination MEDIUM dead- 5
8 Language Idioms LOW-MEDIUM idiom- 7

Quick Reference

1. Context Discovery (CRITICAL)

Read the full file on GitHub · 134 lines

Files

What ships with it

52 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 134 lines · 63 tokens per session scan A 1850c855a636

Subscribe to this mod's changes

code-simplifier is a skill published in the GitHub repository pproenca/dot-skills (200 stars, last pushed 16d ago), licensed MIT. It adds 63 tokens to every session and 1,999 once invoked, about $0.0003 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.

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