菜单
Detect duplicate code using AST-based similarity analysis. Auto-selects the right tool based on file types in the project (similarity-ts for TypeScript/JavaScript, similarity-py for Python, similarity-mbt for MoonBit, similarity-rs for Rust, etc).
默认使用会先检查来源的 Prompt；你也可以切换为直接命令，或下载本地副本。
决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
直接命令不会经过审查 Prompt；运行前请先检查来源。
npx skills add https://github.com/mizchi/similarity --skill check-similarity命令会保持在同一行。复制前请横向滚动并检查完整内容。
想先保存到本地？可下载 SkillsMP 当前能够提供的文件。
Detect duplicate MoonBit code using AST-based similarity analysis. Use when working with .mbt files and looking for code duplication, refactoring opportunities, or enforcing code quality.
Detect duplicate Python code using AST-based similarity analysis. Use when working with .py files and looking for code duplication or refactoring opportunities.
Detect duplicate Rust code using AST-based similarity analysis. Use when working with .rs files and looking for code duplication or refactoring opportunities.
基于 SOC 职业分类
正在显示 SKILL.md
| name | check-similarity |
| description | Detect duplicate code using AST-based similarity analysis. Auto-selects the right tool based on file types in the project (similarity-ts for TypeScript/JavaScript, similarity-py for Python, similarity-mbt for MoonBit, similarity-rs for Rust, etc). |
| argument-hint | [path] [--threshold 0.85] [--print] |
| allowed-tools | Bash(similarity-* *) Bash(cargo run -p similarity-* *) Read Grep Glob |
Detect which languages are present in the target path and run the appropriate similarity tool. Then analyze results and propose refactoring.
Check the target path for file extensions:
| Extension | Tool |
|---|---|
.ts, .tsx, .js, .jsx | similarity-ts |
.py | similarity-py |
.mbt | similarity-mbt |
.rs | similarity-rs |
.php | similarity-php |
.ex, .exs | similarity-elixir |
.css, .scss | similarity-css |
Before running, check if the command exists. If not, install it:
which similarity-<lang> || cargo install similarity-<lang>
similarity-<lang> $ARGUMENTS
If no arguments given:
similarity-<lang> . --threshold 0.85 --min-lines 5
For TypeScript, also consider type similarity:
similarity-ts . --threshold 0.85 --min-tokens 25 --experimental-types
Categorize results by priority:
Report the findings grouped by file, sorted by similarity (highest first). For each high-priority pair, propose a concrete refactoring with before/after code.
| Option | Description |
|---|---|
--threshold <0-1> | Similarity threshold (default: 0.85) |
--min-lines <n> | Skip short functions (default: 3) |
--print | Show code snippets |
--fail-on-duplicates | Exit code 1 if duplicates found |
--filter-function <name> | Filter by function name |
# Fail CI if near-exact duplicates exist
similarity-<lang> . --threshold 0.95 --min-lines 5 --fail-on-duplicates