Guidelines
akash-network/node
Behavioral guidelines to reduce common LLM coding mistakes. An agent skill from akash-network/node.
Duplicate code detection using similarity-rs. An agent skill from nwiizo/ccswarm.
Install Review Duplicates
$ npx skills add nwiizo/ccswarm --skill review-duplicates -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install nwiizo/ccswarm review-duplicates --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/nwiizo/ccswarm.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/review-duplicates .claude/skills/review-duplicates && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "review-duplicates" agent skill from https://github.com/nwiizo/ccswarm/tree/master/.agents/skills/review-duplicates into .claude/skills/review-duplicates/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "review-duplicates", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/nwiizo/ccswarm/tree/master/.agents/skills/review-duplicatesType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add nwiizo/ccswarm --skill review-duplicates -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install nwiizo/ccswarm review-duplicates --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nwiizo/ccswarm.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/review-duplicates .agents/skills/review-duplicates && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "review-duplicates" agent skill from https://github.com/nwiizo/ccswarm/tree/master/.agents/skills/review-duplicates into .agents/skills/review-duplicates/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "review-duplicates", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add nwiizo/ccswarm --skill review-duplicates -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install nwiizo/ccswarm review-duplicates --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nwiizo/ccswarm.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/review-duplicates .cursor/skills/review-duplicates && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "review-duplicates" agent skill from https://github.com/nwiizo/ccswarm/tree/master/.agents/skills/review-duplicates into .cursor/skills/review-duplicates/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "review-duplicates", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/nwiizo/ccswarm.git --path .agents/skills/review-duplicates--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add nwiizo/ccswarm --skill review-duplicates -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install nwiizo/ccswarm review-duplicates --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nwiizo/ccswarm.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/review-duplicates .gemini/skills/review-duplicates && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "review-duplicates" agent skill from https://github.com/nwiizo/ccswarm/tree/master/.agents/skills/review-duplicates into .gemini/skills/review-duplicates/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "review-duplicates", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install nwiizo/ccswarm review-duplicatesInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add nwiizo/ccswarm --skill review-duplicates -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/nwiizo/ccswarm.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/review-duplicates .github/skills/review-duplicates && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "review-duplicates" agent skill from https://github.com/nwiizo/ccswarm/tree/master/.agents/skills/review-duplicates into .github/skills/review-duplicates/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "review-duplicates", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add nwiizo/ccswarm --skill review-duplicates -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install nwiizo/ccswarm review-duplicates --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nwiizo/ccswarm.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/review-duplicates .opencode/skills/review-duplicates && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "review-duplicates" agent skill from https://github.com/nwiizo/ccswarm/tree/master/.agents/skills/review-duplicates into .opencode/skills/review-duplicates/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "review-duplicates", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
review-duplicates- GitHub stars
- 153
- Token cost
- ~327 tokens
- SKILL.md length
- 114 words
- Files
- 1
- Skills in repo
- 12
- Repo updated
- First seen
- Licence
- MIT
At a glance
Duplicate code detection using similarity-rs. An agent skill from nwiizo/ccswarm.
- Tasks that involve Refactoring
- Calls cargo
What it does
Review Duplicates is an agent skill from nwiizo/ccswarm. Duplicate code detection using similarity-rs. Identifies refactoring candidates based on semantic similarity.
Its SKILL.md is about 330 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Refactoring. The repository describes itself as: Multi-agent orchestration system using Claude Code with Git worktree isolation and specialized AI agents for collaborative development. The licence is MIT.
When your agent uses it
- Tasks that involve Refactoring
Example prompts
- “/review-duplicates”
What it can do on your machine
Read from SKILL.md and the folder at commit 611bf15. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
cargo
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Review Duplicates loads about 327 tokens when it runs. Until then it costs about 32 tokens; SKILL.md has 114 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from nwiizo/ccswarm at commit 611bf15, republished under its MIT licence (© nwiizo). 114 words, ~327 tokens.
Download SKILL.mdSave it as
.claude/skills/review-duplicates/SKILL.md (or your agent's skills folder).- name
- review-duplicates
- description
- Duplicate code detection using similarity-rs. Identifies refactoring candidates based on semantic similarity.
- user-invocable
- true
- context
- fork
- agent
- code-refactor-agent
When subagents are enabled in Codex, prefer delegating this workflow to the code-refactor-agent custom agent.
Detect duplicate code in the ccswarm codebase using similarity-rs.
similarity-rs crates/ --threshold 0.80For Rust code, also consult cargo coupling so duplicate cleanup is prioritized
by architectural impact, not only by textual similarity.
cargo coupling . --summary --exclude-tests
cargo coupling . --hotspots=12 --exclude-testsIf a duplicate cluster is located in a coupling hotspot, high-risk boundary, or cycle-related module, raise its refactoring priority accordingly.
Classify results by priority:
| Priority | Condition | Action |
|---|---|---|
| High | 95%+ similarity, 10+ lines | Extract to common function |
| Medium | 90-95% similarity, 5+ lines | Consider trait or macro |
| Low | 85-90% similarity | Evaluate structural similarity |
| Skip | Test code, config structs | Allow intentional duplication |
Output a JSON report with high_priority, medium_priority, low_priority, and ignored sections.
© nwiizo, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .agents/skills/review-duplicates of nwiizo/ccswarm.
Open the folder on GitHubat commit 611bf15
Compare with similar skills
Review Duplicates next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Review Duplicates this skillnwiizo/ccswarm | 153 | — | ~327 | Automated safety check: Pass | MIT | |
| Guidelinesakash-network/node | 1.1k | 20 repos | ~577 | Automated safety check: Pass | MIT | |
| Migrate Core Code to Submodulestinyhumansai/openhuman | 42k | — | ~2.6k | Automated safety check: Pass | GPL-3.0 | |
| Component Refactoringlangflow-ai/langflow | 155k | — | ~3.5k | Automated safety check: Pass | MIT | |
| Ponytail Lazy Developer ModeDietrichGebert/ponytail | 160k | 1 repos | ~873 | Automated safety check: Pass | MIT | |
| ast-grep Structural Searchcode-yeongyu/oh-my-openagent | 70k | — | ~3.3k | Automated safety check: Pass | MIT |
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Migrate Core Code to Submodules
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Plans and carries out moving non-host-specific code and its tests from the OpenHuman core into vendored tiny submodule libraries, then releases the submodule and re-pins the host.
Component Refactoring
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Refactor high-complexity React components in Langflow frontend.
Ponytail Lazy Developer Mode
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Makes the agent pick the laziest solution that works: skip unneeded work, reuse what exists, prefer the standard library and platform features, and keep diffs small.
ast-grep Structural Search
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Searches and rewrites code by syntax-tree shape across 25 languages with ast-grep, for codemods, structural queries and YAML lint rules, using a Python wrapper script.
Systematic Code Refactoring
luongnv89/claude-howto
Guides refactoring in phases based on Martin Fowler's method: research, test coverage check, planning and small tested steps, with your approval at each phase.
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Questions about Review Duplicates
What does Review Duplicates do?
Duplicate code detection using similarity-rs. An agent skill from nwiizo/ccswarm. Review Duplicates is an agent skill from nwiizo/ccswarm. Duplicate code detection using similarity-rs.
When should I use Review Duplicates?
Review Duplicates fits situations like: tasks that involve Refactoring.
How do I install Review Duplicates in Claude Code?
Run `npx skills add nwiizo/ccswarm --skill review-duplicates -a claude-code`. Or copy the skill folder (.agents/skills/review-duplicates in nwiizo/ccswarm) into .claude/skills/review-duplicates in your project. Claude Code loads it when a task matches its description.
How do I install Review Duplicates in Codex?
Run `npx skills add nwiizo/ccswarm --skill review-duplicates -a codex`. Or copy the skill folder (.agents/skills/review-duplicates in nwiizo/ccswarm) into .agents/skills/review-duplicates in your project. Codex loads it when a task matches its description.
Can I use Review Duplicates in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add nwiizo/ccswarm --skill review-duplicates -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/review-duplicates, .gemini/skills/review-duplicates, .github/skills/review-duplicates and .opencode/skills/review-duplicates in your project.
What does Review Duplicates need to run?
Going by SKILL.md and its folder, Review Duplicates needs the command-line tools its instructions call (cargo).
Does Review Duplicates access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Review Duplicates safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Review Duplicates use?
Review Duplicates is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Review Duplicates use?
About 327 tokens (SKILL.md is roughly 1.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Review Duplicates?
Skills that share tags, products or a category with Review Duplicates: Guidelines (akash-network/node, 1.1k stars), Migrate Core Code to Submodules (tinyhumansai/openhuman, 42k stars), Component Refactoring (langflow-ai/langflow, 155k stars) and Ponytail Lazy Developer Mode (DietrichGebert/ponytail, 160k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Review Duplicates?
nwiizo (a GitHub user) maintains it in nwiizo/ccswarm, which has 153 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on October 9, 2026.
Source: nwiizo/ccswarm on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.