Update V8 Version
openinterpreter/openinterpreter
Bumps the pinned v8 and rusty_v8 versions in Codex, validates the release-candidate path with the v8-canary check, and traces failures to upstream build changes.
Inspect Rust duplicate-code candidates with similarity-rs. An agent skill from nwiizo/cargo-coupling.
MITAuto-check passed
Install Similarity
$ npx skills add nwiizo/cargo-coupling --skill similarity -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install nwiizo/cargo-coupling similarity --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/cargo-coupling.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/similarity .claude/skills/similarity && 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 "similarity" agent skill from https://github.com/nwiizo/cargo-coupling/tree/main/.agents/skills/similarity into .claude/skills/similarity/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "similarity", 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/cargo-coupling/tree/main/.agents/skills/similarityType 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/cargo-coupling --skill similarity -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install nwiizo/cargo-coupling similarity --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nwiizo/cargo-coupling.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/similarity .agents/skills/similarity && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "similarity" agent skill from https://github.com/nwiizo/cargo-coupling/tree/main/.agents/skills/similarity into .agents/skills/similarity/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "similarity", 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/cargo-coupling --skill similarity -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install nwiizo/cargo-coupling similarity --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nwiizo/cargo-coupling.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/similarity .cursor/skills/similarity && 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 "similarity" agent skill from https://github.com/nwiizo/cargo-coupling/tree/main/.agents/skills/similarity into .cursor/skills/similarity/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "similarity", 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/cargo-coupling.git --path .agents/skills/similarity--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/cargo-coupling --skill similarity -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install nwiizo/cargo-coupling similarity --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nwiizo/cargo-coupling.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/similarity .gemini/skills/similarity && 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 "similarity" agent skill from https://github.com/nwiizo/cargo-coupling/tree/main/.agents/skills/similarity into .gemini/skills/similarity/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "similarity", 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/cargo-coupling similarityInstalls 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/cargo-coupling --skill similarity -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/nwiizo/cargo-coupling.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/similarity .github/skills/similarity && 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 "similarity" agent skill from https://github.com/nwiizo/cargo-coupling/tree/main/.agents/skills/similarity into .github/skills/similarity/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "similarity", 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/cargo-coupling --skill similarity -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/cargo-coupling similarity --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nwiizo/cargo-coupling.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/similarity .opencode/skills/similarity && 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 "similarity" agent skill from https://github.com/nwiizo/cargo-coupling/tree/main/.agents/skills/similarity into .opencode/skills/similarity/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "similarity", 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
similarity- GitHub stars
- 112
- Token cost
- ~492 tokens
- SKILL.md length
- 213 words
- Files
- 1
- Skills in repo
- 14
- Repo updated
- First seen
- Licence
- MIT
At a glance
Inspect Rust duplicate-code candidates with similarity-rs. An agent skill from nwiizo/cargo-coupling.
- Assess whether similar code shares a responsibility before extracting an abstraction
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Similarity is an agent skill from nwiizo/cargo-coupling. Inspect Rust duplicate-code candidates with similarity-rs. Use to assess whether similar code shares a responsibility before extracting an abstraction.
Its SKILL.md is about 490 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: Requires similarity-rs and rtk; coupling verification uses Rust/Cargo from this checkout.
It works with Rust. The repository describes itself as: A coupling analysis tool for Rust projects - measuring the 'right distance' in your code. The licence is MIT.
When your agent uses it
- Assess whether similar code shares a responsibility before extracting an abstraction
Example prompts
- “/similarity”
Requirements
- Compatibility (from SKILL.md): Requires similarity-rs and rtk; coupling verification uses Rust/Cargo from this checkout.
What it can do on your machine
Read from SKILL.md and the folder at commit 8ef1441. 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
No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).
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.
Compatibility
Requires similarity-rs and rtk; coupling verification uses Rust/Cargo from this checkout.
From compatibility in the SKILL.md frontmatter.
Context cost
Similarity loads about 492 tokens when it runs. Until then it costs about 41 tokens; SKILL.md has 213 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/cargo-coupling at commit 8ef1441, republished under its MIT licence (© nwiizo). 213 words, ~492 tokens.
Download SKILL.mdSave it as
.claude/skills/similarity/SKILL.md (or your agent's skills folder).- name
- similarity
- description
- Inspect Rust duplicate-code candidates with similarity-rs. Use to assess whether similar code shares a responsibility before extracting an abstraction.
- compatibility
- Requires similarity-rs and rtk; coupling verification uses Rust/Cargo from this checkout.
- argument-hint
- [path] [--threshold N] [--skip-test]
Rust Code Similarity
Scan the requested scope (default ./src) with similarity-rs. Start with one scan
and inspect the reported code; thresholds rank candidates, not required actions:
rtk proxy similarity-rs ./src --skip-test --threshold 0.90 --min-lines 10Honor requested options. Use --print for source detail or --experimental-types
when comparing types is relevant. Consult similarity-rs --help for other options;
do not run several threshold sweeps without an unresolved question.
Record the analyzed scope, tool options, and candidate locations. Check callers, semantics, and intentional differences. Recommend shared code only when the same rule should change together and sharing it reduces maintenance cost. Similar AST traversal, translations, or collection pipelines can serve different rules; do not merge them based on syntax alone. Explain why consequential candidates are selected or retained. A high similarity percentage does not justify generics, traits, or extraction.
When assessing a structural change, use cargo-coupling on the relevant scope to check its effect on boundaries. Launch visualization only when requested or needed to answer the task. Report locations, the shared responsibility (if any), and the recommendation, including cases where duplication should remain. Implement fixes when requested, preserve affected behavior with existing or focused regression tests, and rerun similarity and coupling with the same scope and settings. Report which candidates were resolved and which remain; a lower duplicate count is supporting evidence, not the goal.
© 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/similarity of nwiizo/cargo-coupling.
Open the folder on GitHubat commit 8ef1441
Compare with similar skills
Similarity 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 |
|---|---|---|---|---|---|---|
| Similarity this skillnwiizo/cargo-coupling | 112 | — | ~492 | Automated safety check: Pass | MIT | |
| Update V8 Versionopeninterpreter/openinterpreter | 69k | 2 repos | ~845 | Automated safety check: Pass | Apache-2.0 | |
| Firecrawl Page Scrape Integrationfirecrawl/firecrawl | 190k | 1 repos | ~944 | Automated safety check: Pass | ISC | |
| Migrate Core Code to Submodulestinyhumansai/openhuman | 42k | — | ~2.6k | Automated safety check: Pass | GPL-3.0 | |
| Rust TDD Workflowrtk-ai/rtk | 83k | — | ~753 | Automated safety check: Notes | Apache-2.0 | |
| OpenLogi macOS Permissions TriageAprilNEA/OpenLogi | 23k | — | ~2.5k | Automated safety check: Notes | Apache-2.0 |
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Migrate Core Code to Submodules
tinyhumansai/openhuman
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.
Rust TDD Workflow
rtk-ai/rtk
Enforces red-green-refactor for Rust work, with idiomatic test patterns, a naming convention and a pre-commit gate of cargo fmt, clippy and test.
OpenLogi macOS Permissions Triage
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Decides whether an OpenLogi device problem on macOS is a privacy-permission (TCC) problem, using agent log lines, and says which identity needs which grant.
Rust Best Practices
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Guide for writing idiomatic Rust code based on Apollo GraphQL's best practices handbook.
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Related
Works with
Questions about Similarity
What does Similarity do?
Inspect Rust duplicate-code candidates with similarity-rs. An agent skill from nwiizo/cargo-coupling. Similarity is an agent skill from nwiizo/cargo-coupling. Inspect Rust duplicate-code candidates with similarity-rs.
When should I use Similarity?
Similarity fits situations like: assess whether similar code shares a responsibility before extracting an abstraction.
How do I install Similarity in Claude Code?
Run `npx skills add nwiizo/cargo-coupling --skill similarity -a claude-code`. Or copy the skill folder (.agents/skills/similarity in nwiizo/cargo-coupling) into .claude/skills/similarity in your project. Claude Code loads it when a task matches its description.
How do I install Similarity in Codex?
Run `npx skills add nwiizo/cargo-coupling --skill similarity -a codex`. Or copy the skill folder (.agents/skills/similarity in nwiizo/cargo-coupling) into .agents/skills/similarity in your project. Codex loads it when a task matches its description.
Can I use Similarity 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/cargo-coupling --skill similarity -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/similarity, .gemini/skills/similarity, .github/skills/similarity and .opencode/skills/similarity in your project.
What does Similarity need to run?
SKILL.md names no scripts, command-line tools or credentials: Similarity is instructions for the agent only. Compatibility (from SKILL.md): Requires similarity-rs and rtk; coupling verification uses Rust/Cargo from this checkout..
Does Similarity 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 Similarity 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 Similarity use?
Similarity 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 Similarity use?
About 492 tokens (SKILL.md is roughly 2k 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 Similarity?
Skills that share tags, products or a category with Similarity: Update V8 Version (openinterpreter/openinterpreter, 69k stars), Firecrawl Page Scrape Integration (firecrawl/firecrawl, 190k stars), Migrate Core Code to Submodules (tinyhumansai/openhuman, 42k stars) and Rust TDD Workflow (rtk-ai/rtk, 83k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Similarity?
nwiizo (a GitHub user) maintains it in nwiizo/cargo-coupling, which has 112 GitHub stars. The repository holds 14 skills in this directory. The repository was last updated on October 10, 2026.
Source: nwiizo/cargo-coupling on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.