Using Agent Skills
addyosmani/agent-skills
Meta-skill for choosing which workflow skill fits the task at hand, plus always-on habits: surface assumptions, stop on confusion, push back, keep it simple and stay in scope.
How to add or edit Cursor rules in our project. An agent skill from spiriMirror/libuipc.
Install Cursor Rules
$ npx skills add spiriMirror/libuipc --skill cursor-rules -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install spiriMirror/libuipc cursor-rules --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/spiriMirror/libuipc.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.cursor/skills/cursor-rules .claude/skills/cursor-rules && 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 "cursor-rules" agent skill from https://github.com/spiriMirror/libuipc/tree/main/.cursor/skills/cursor-rules into .claude/skills/cursor-rules/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cursor-rules", 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/spiriMirror/libuipc/tree/main/.cursor/skills/cursor-rulesType 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 spiriMirror/libuipc --skill cursor-rules -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install spiriMirror/libuipc cursor-rules --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/spiriMirror/libuipc.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.cursor/skills/cursor-rules .agents/skills/cursor-rules && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "cursor-rules" agent skill from https://github.com/spiriMirror/libuipc/tree/main/.cursor/skills/cursor-rules into .agents/skills/cursor-rules/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cursor-rules", 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 spiriMirror/libuipc --skill cursor-rules -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install spiriMirror/libuipc cursor-rules --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/spiriMirror/libuipc.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.cursor/skills/cursor-rules .cursor/skills/cursor-rules && 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 "cursor-rules" agent skill from https://github.com/spiriMirror/libuipc/tree/main/.cursor/skills/cursor-rules into .cursor/skills/cursor-rules/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cursor-rules", 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/spiriMirror/libuipc.git --path .cursor/skills/cursor-rules--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 spiriMirror/libuipc --skill cursor-rules -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install spiriMirror/libuipc cursor-rules --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/spiriMirror/libuipc.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.cursor/skills/cursor-rules .gemini/skills/cursor-rules && 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 "cursor-rules" agent skill from https://github.com/spiriMirror/libuipc/tree/main/.cursor/skills/cursor-rules into .gemini/skills/cursor-rules/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cursor-rules", 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 spiriMirror/libuipc cursor-rulesInstalls 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 spiriMirror/libuipc --skill cursor-rules -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/spiriMirror/libuipc.git skills-src && mkdir -p .github/skills && cp -r skills-src/.cursor/skills/cursor-rules .github/skills/cursor-rules && 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 "cursor-rules" agent skill from https://github.com/spiriMirror/libuipc/tree/main/.cursor/skills/cursor-rules into .github/skills/cursor-rules/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cursor-rules", 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 spiriMirror/libuipc --skill cursor-rules -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install spiriMirror/libuipc cursor-rules --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/spiriMirror/libuipc.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.cursor/skills/cursor-rules .opencode/skills/cursor-rules && 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 "cursor-rules" agent skill from https://github.com/spiriMirror/libuipc/tree/main/.cursor/skills/cursor-rules into .opencode/skills/cursor-rules/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cursor-rules", 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
cursor-rules- GitHub stars
- 335
- Token cost
- ~265 tokens
- SKILL.md length
- 73 words
- Files
- 1
- Skills in repo
- 16
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
How to add or edit Cursor rules in our project. An agent skill from spiriMirror/libuipc.
- Works in 5 steps: Always place rule files in… → Follow the naming convention → Directory structure → …
- Tasks that involve Agent instruction files
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Cursor Rules is an agent skill from spiriMirror/libuipc. How to add or edit Cursor rules in our project
Its SKILL.md is about 270 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 Agent Workflows, covering Agent instruction files. The repository describes itself as: A Modern Python and C++20 Library of Unified Incremental Potential Contact. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Agent instruction files
Example prompts
- “/cursor-rules”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Always place rule files in PROJECT_ROOT/.cursor/rules/
- Follow the naming convention
- Directory structure
- Never place rule files
- Cursor rules have the following structure
What it can do on your machine
Read from SKILL.md and the folder at commit 9c748a7. 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.
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
Cursor Rules loads about 265 tokens when it runs. Until then it costs about 15 tokens; SKILL.md has 73 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 spiriMirror/libuipc at commit 9c748a7, republished under its Apache-2.0 licence (© spiriMirror). 73 words, ~265 tokens.
Download SKILL.mdSave it as
.claude/skills/cursor-rules/SKILL.md (or your agent's skills folder).- name
- cursor-rules
- description
- How to add or edit Cursor rules in our project
Cursor Rules Location
How to add new cursor rules to the project
Always place rule files in PROJECT_ROOT/.cursor/rules/:
.cursor/rules/ ├── your-rule-name.mdc ├── another-rule.mdc └── ...Follow the naming convention:
- Use kebab-case for filenames
- Always use .mdc extension
- Make names descriptive of the rule's purpose
Directory structure:
PROJECT_ROOT/ ├── .cursor/ │ └── rules/ │ ├── your-rule-name.mdc │ └── ... └── ...Never place rule files:
- In the project root
- In subdirectories outside .cursor/rules
- In any other location
Cursor rules have the following structure:
---
description: Short description of the rule's purpose
globs: optional/path/pattern/**/*
alwaysApply: false
---
# Rule Title
Main content explaining the rule with markdown formatting.
1. Step-by-step instructions
2. Code examples
3. Guidelines© spiriMirror, Apache-2.0. 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 .cursor/skills/cursor-rules of spiriMirror/libuipc.
Open the folder on GitHubat commit 9c748a7
Compare with similar skills
Cursor Rules 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 |
|---|---|---|---|---|---|---|
| Cursor Rules this skillspiriMirror/libuipc | 335 | — | ~265 | Automated safety check: Pass | Apache-2.0 | |
| Using Agent Skillsaddyosmani/agent-skills | 103k | 4 repos | ~2.4k | Automated safety check: Pass | MIT | |
| Claude ReflectBayramAnnakov/claude-reflect | 1.7k | 2 repos | ~627 | Automated safety check: Pass | MIT | |
| Writing For Agentsbestofjs/bestofjs | 3.1k | 19 repos | ~2.7k | Automated safety check: Pass | MIT | |
| Neat-Freak Knowledge CloseoutKKKKhazix/khazix-skills | 21k | — | ~1.9k | Automated safety check: Pass | MIT | |
| Task Observerrebelytics/one-skill-to-rule-them-all | 3.2k | 1 repos | ~12k | Automated safety check: Pass | CC-BY-4.0 |
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Categories
Questions about Cursor Rules
What does Cursor Rules do?
How to add or edit Cursor rules in our project. An agent skill from spiriMirror/libuipc. Cursor Rules is an agent skill from spiriMirror/libuipc.
When should I use Cursor Rules?
Cursor Rules fits situations like: tasks that involve Agent instruction files.
How do I install Cursor Rules in Claude Code?
Run `npx skills add spiriMirror/libuipc --skill cursor-rules -a claude-code`. Or copy the skill folder (.cursor/skills/cursor-rules in spiriMirror/libuipc) into .claude/skills/cursor-rules in your project. Claude Code loads it when a task matches its description.
How do I install Cursor Rules in Codex?
Run `npx skills add spiriMirror/libuipc --skill cursor-rules -a codex`. Or copy the skill folder (.cursor/skills/cursor-rules in spiriMirror/libuipc) into .agents/skills/cursor-rules in your project. Codex loads it when a task matches its description.
Can I use Cursor Rules 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 spiriMirror/libuipc --skill cursor-rules -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cursor-rules, .gemini/skills/cursor-rules, .github/skills/cursor-rules and .opencode/skills/cursor-rules in your project.
What does Cursor Rules need to run?
SKILL.md names no scripts, command-line tools or credentials: Cursor Rules is instructions for the agent only.
Does Cursor Rules 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 Cursor Rules 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 Cursor Rules use?
Cursor Rules is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Cursor Rules use?
About 265 tokens (SKILL.md is roughly 1.1k 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 Cursor Rules?
Skills that share tags, products or a category with Cursor Rules: Using Agent Skills (addyosmani/agent-skills, 103k stars), Claude Reflect (BayramAnnakov/claude-reflect, 1.7k stars), Writing For Agents (bestofjs/bestofjs, 3.1k stars) and Neat-Freak Knowledge Closeout (KKKKhazix/khazix-skills, 21k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Cursor Rules?
spiriMirror (a GitHub organization) maintains it in spiriMirror/libuipc, which has 335 GitHub stars. The repository holds 16 skills in this directory. The repository was last updated on October 3, 2026.
Source: spiriMirror/libuipc on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.