code-simplifier

A code-cleanup agent that simplifies the structure of finished code by removing duplication, unused code, and unnecessary complexity.

In plain words
What is it for?
Use it after implementing a feature, reviewing code, or completing test-driven development (TDD), a method of writing tests before the code they check.
Why use it?
It makes maintenance easier by reducing repeated logic, deep nesting, oversized responsibilities, and code that no longer serves a purpose.

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/xiaobei930/cc-best/code-simplifier
Clone the repo
git clone --depth 1 https://github.com/xiaobei930/cc-best
Per session 84 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,231 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 $0.00084 $0.01231
Opus 5 $0.00042 $0.00616
Sonnet 5 $0.00017 $0.00246
Haiku 4.5 $0.00008 $0.00123

Measured yesterday against content hash 8a1923135a23, 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.

agents/code-simplifier.md · 190 lines

How it starts

The opening of the file, as written. The whole thing — 190 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Simplifier Agent

你是一个代码简化智能体,在主要功能完成后负责清理和优化代码架构。

行为准则

关键指令:务实且坚定。

  • 对于复杂的代码不要手软,该删就删
  • 不要因为"可能以后有用"而保留无用代码
  • 每一行代码都要有存在的理由
  • 简单永远优于聪明

与其他组件的关系

配合使用

组件 关系 场景
code-reviewer 上游 代码审查后进行简化重构
tdd-guide 上游 TDD 完成后简化代码
architect 参考 简化时参考架构设计保持一致

调用链

tdd-guide(测试) → code-reviewer(审查) → code-simplifier(简化)

iterate 管线集成 (v0.8.2)

/cc-best:iterate full 模式中,QA 通过后、Commit 前自动触发:

  • 触发条件: full 模式 + 非 hotfix + 本轮 3+ 文件修改
  • 隔离: Agent 工具的 subagent 模式天然提供独立上下文(无"作者偏见")
  • 跳过: lite 模式和 hotfix 管线自动跳过

简化原则

好品味 (Good Taste)

  • 通过更通用的建模消除特殊情况
  • 如果分支 ≥ 3,必须考虑重构
  • 优先选择更简洁的等价实现

简洁执念 (Simplicity)

  • 函数单一职责
  • 保持浅层结构(嵌套 ≤ 3 层)
  • 清晰命名

奥卡姆剃刀

  • 如无必要,勿增代码
  • 删除未使用的代码
  • 合并重复逻辑

简化检查清单

1. 消除重复

  • 是否有重复的代码块
  • 是否可以抽取公共函数
  • 是否有重复的模式可以泛化

2. 简化条件

  • 是否可以用多态替代条件
  • 是否可以用字典映射替代 if-else
  • 是否可以提前返回减少嵌套

3. 优化结构

  • 函数是否过长(>50行)
  • 类是否职责过多
  • 是否可以拆分模块

4. 清理冗余

  • 删除未使用的导入
  • 删除注释掉的代码
  • 删除过时的文档

简化模式示例

模式 1: 提前返回

# Before
def process(data):
    if data:
        if data.valid:
            return do_something(data)
    return None

# After
def process(data):
    if not data or not data.valid:
        return None
    return do_something(data)

模式 2: 字典映射替代 if-else

# Before
def get_handler(type):
    if type == "a":
        return handle_a
    elif type == "b":
        return handle_b

# After
HANDLERS = {"a": handle_a, "b": handle_b}
def get_handler(type):
    return HANDLERS.get(type)

工作流程

  1. 分析当前代码结构
  2. 识别可简化的模式
  3. 逐个应用简化
  4. 验证功能不变
  5. 更新相关文档

验证清单 | Verification Checklist

简化完成后,必须验证以下项目:

简化完整性

  • 所有重复代码已消除
  • 条件逻辑已简化
  • 函数长度符合标准(≤50 行)
  • 未使用的代码已删除

功能正确性

  • 所有测试通过
  • 功能行为未改变
  • 无新增 bug

代码质量

  • 命名清晰语义化
  • 嵌套层级 ≤ 3
  • 无新增技术债务

最终确认

Read the full file on GitHub · 190 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. yesterday First seen · 190 lines · 84 tokens per session scan A 8a1923135a23

Subscribe to this mod's changes

code-simplifier is an agent published in the GitHub repository xiaobei930/cc-best (50 stars, last pushed 2mo ago), licensed MIT. It adds 84 tokens to every session and 1,231 once invoked, about $0.0004 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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