code-simplify

A command for making recently changed or user-selected code easier to read and maintain without changing what it does. It looks for issues such as deep nesting, long functions, repeated logic, vague names, and unused code.

In plain words
What is it for?
Use it to simplify recent changes or a specified code area, split long functions, replace nested conditionals, improve names, remove confirmed dead code, and check the result.
Why use it?
It reduces unnecessary complexity while preserving existing behavior. It also calls for tests, a successful build, and a further quality review after the simplification.

Command for Claude Code

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 commands/233i/agent-skills/code-simplify
Clone the repo
git clone --depth 1 https://github.com/233i/agent-skills

Made for: Claude Code.

Per session 23 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 298 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 $0.00023 $0.00298
Opus 5 $0.00012 $0.00149
Sonnet 5 $0.00005 $0.00060
Haiku 4.5 $0.00002 $0.00030

Measured yesterday against content hash 3ae290660092, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-simplify 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.

.claude/commands/code-simplify.md · 23 lines

What it actually says

调用 agent-skills:code-simplification

在保持行为完全不变的前提下,简化最近改动的代码,或用户指定范围内的代码:

  1. 阅读 CLAUDE.md,理解项目约定
  2. 确定目标代码,默认是最近改动,除非明确要求扩大范围
  3. 在动手前先理解它的职责、调用方、边界情况和测试覆盖
  4. 扫描可简化机会:
    • 深层嵌套 → guard clauses 或提取 helper
    • 长函数 → 按职责拆分
    • 嵌套三元表达式 → 改成 if/else 或 switch
    • 泛泛命名 → 改成更具描述性的名字
    • 重复逻辑 → 提取共享函数
    • 死代码 → 确认后移除
  5. 每次只做一个简化,并在每次改动后跑测试
  6. 确认所有测试通过、构建成功且 diff 干净

如果某次简化后测试失败,就撤回那次改动并重新判断。最后用 code-review-and-quality 再审一遍结果。

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 · 23 lines · 23 tokens per session scan A 3ae290660092

Subscribe to this mod's changes

code-simplify is a command published in the GitHub repository 233i/agent-skills (6 stars, last pushed 4mo ago), licensed MIT. It adds 23 tokens to every session and 298 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 2026-08-31.