Tabler Astro Dev Server
tabler/tabler
Starts the right Tabler dev server, keeps it from clashing with builds and verifies changes in the browser before a page or component is handed back.
Astro-specific performance optimizations for 95+ Lighthouse scores.
Install Perf Astro
$ npx skills add tech-leads-club/agent-skills --skill perf-astro -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install tech-leads-club/agent-skills perf-astro --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/tech-leads-club/agent-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/'packages/skills-catalog/skills/(performance)/perf-astro' .claude/skills/perf-astro && 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 "perf-astro" agent skill from https://github.com/tech-leads-club/agent-skills/tree/main/packages/skills-catalog/skills/(performance)/perf-astro into .claude/skills/perf-astro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-astro", 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/tech-leads-club/agent-skills/tree/main/packages/skills-catalog/skills/(performance)/perf-astroType 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 tech-leads-club/agent-skills --skill perf-astro -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install tech-leads-club/agent-skills perf-astro --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/tech-leads-club/agent-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/'packages/skills-catalog/skills/(performance)/perf-astro' .agents/skills/perf-astro && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "perf-astro" agent skill from https://github.com/tech-leads-club/agent-skills/tree/main/packages/skills-catalog/skills/(performance)/perf-astro into .agents/skills/perf-astro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-astro", 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 tech-leads-club/agent-skills --skill perf-astro -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install tech-leads-club/agent-skills perf-astro --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/tech-leads-club/agent-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/'packages/skills-catalog/skills/(performance)/perf-astro' .cursor/skills/perf-astro && 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 "perf-astro" agent skill from https://github.com/tech-leads-club/agent-skills/tree/main/packages/skills-catalog/skills/(performance)/perf-astro into .cursor/skills/perf-astro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-astro", 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/tech-leads-club/agent-skills.git --path 'packages/skills-catalog/skills/(performance)/perf-astro'--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 tech-leads-club/agent-skills --skill perf-astro -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install tech-leads-club/agent-skills perf-astro --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/tech-leads-club/agent-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/'packages/skills-catalog/skills/(performance)/perf-astro' .gemini/skills/perf-astro && 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 "perf-astro" agent skill from https://github.com/tech-leads-club/agent-skills/tree/main/packages/skills-catalog/skills/(performance)/perf-astro into .gemini/skills/perf-astro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-astro", 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 tech-leads-club/agent-skills perf-astroInstalls 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 tech-leads-club/agent-skills --skill perf-astro -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/tech-leads-club/agent-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/'packages/skills-catalog/skills/(performance)/perf-astro' .github/skills/perf-astro && 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 "perf-astro" agent skill from https://github.com/tech-leads-club/agent-skills/tree/main/packages/skills-catalog/skills/(performance)/perf-astro into .github/skills/perf-astro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-astro", 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 tech-leads-club/agent-skills --skill perf-astro -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install tech-leads-club/agent-skills perf-astro --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/tech-leads-club/agent-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/'packages/skills-catalog/skills/(performance)/perf-astro' .opencode/skills/perf-astro && 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 "perf-astro" agent skill from https://github.com/tech-leads-club/agent-skills/tree/main/packages/skills-catalog/skills/(performance)/perf-astro into .opencode/skills/perf-astro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-astro", 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
perf-astro- GitHub stars
- 7k
- Token cost
- ~923 tokens
- SKILL.md length
- 109 words
- Files
- 1
- Skills in repo
- 74
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Astro-specific performance optimizations for 95+ Lighthouse scores.
- Optimizing Astro site performance
- SKILL.md covers Quick Setup, Integrations, Layout Pattern and Measuring, plus 1 more section
- Calls npm and npx; reaches fonts.googleapis.com and fonts.gstatic.com
- Improving Astro Lighthouse scores
What it does
Perf Astro is an agent skill from tech-leads-club/agent-skills. Astro-specific performance optimizations for 95+ Lighthouse scores. Covers critical CSS inlining, compression, font loading, and LCP optimization. Use when optimizing Astro site performance, improving Astro Lighthouse scores, or configuring astro-critters. Do NOT use for non-Astro sites (use perf-web-optimization or core-web-vitals) or running Lighthouse audits (use perf-lighthouse).
Its SKILL.md is about 920 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 Frontend & Design, covering Web performance and Static sites and blogs. It works with Astro. The repository describes itself as: The secure, validated skill registry for professional AI coding agents. Extend Antigravity, Claude Code, Cursor, Copilot and more with absolute confidence.
When your agent uses it
- Optimizing Astro site performance
- Improving Astro Lighthouse scores
- Configuring astro-critters
- Non-Astro sites (use perf-web-optimization
Example prompts
- “/perf-astro”
Requirements
- Node.js
What it can do on your machine
Read from SKILL.md and the folder at commit 6df68d5. 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:
npmnpx
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
fonts.googleapis.comfonts.gstatic.com
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
Perf Astro loads about 923 tokens when it runs. Until then it costs about 99 tokens; SKILL.md has 109 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 109 words (~923 tokens).
“Astro-specific optimizations for 95+ Lighthouse scores.”
- name
- perf-astro
Files
Just SKILL.md in packages/skills-catalog/skills/(performance)/perf-astro of tech-leads-club/agent-skills.
Open the folder on GitHubat commit 6df68d5
Compare with similar skills
Perf Astro 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 |
|---|---|---|---|---|---|---|
| Perf Astro this skilltech-leads-club/agent-skills | 7k | — | ~923 | Automated safety check: Pass | Custom licence | |
| Tabler Astro Dev Servertabler/tabler | 42k | — | ~1.2k | Automated safety check: Pass | MIT | |
| Tabler Astro Component Scriptstabler/tabler | 42k | — | ~2.1k | Automated safety check: Pass | MIT | |
| Kill AI Slopyetone/kill-ai-slop | 1.3k | — | ~1.4k | Automated safety check: Pass | Apache-2.0 | |
| Motion Dev Animations199-biotechnologies/motion-dev-animations-skill | 133 | 1 repos | ~2.8k | Automated safety check: Notes | MIT | |
| Astrodevantler-tech/ksail | 165 | 3 repos | ~1.1k | Automated safety check: Pass | MIT |
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Tabler Astro Component Scripts
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Rules for adding or fixing client-side scripts in Tabler's Astro components so the copied preview HTML stays readable, self-contained and runs in the right order.
Kill AI Slop
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Find and remove AI slop — the generic, machine-default visual and copy tics of vibe-coded products — from a web project.
Motion Dev Animations
199-biotechnologies/motion-dev-animations-skill
Creates 120fps GPU-accelerated animations with Motion.dev (Framer Motion successor) for React, Next.js, Svelte, and Astro projects.
Astro
devantler-tech/ksail
Skill for building with the Astro web framework. An agent skill from devantler-tech/ksail.
UI Upstream Sync
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Audit and update the existing Fulldev Astro UI registry against current data-slot and shadcn/ui Base UI Vega.
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Related
Works with
Categories
Questions about Perf Astro
What does Perf Astro do?
Astro-specific performance optimizations for 95+ Lighthouse scores. Perf Astro is an agent skill from tech-leads-club/agent-skills. Astro-specific performance optimizations for 95+ Lighthouse scores.
When should I use Perf Astro?
Perf Astro fits situations like: optimizing Astro site performance; improving Astro Lighthouse scores; configuring astro-critters; non-Astro sites (use perf-web-optimization.
How do I install Perf Astro in Claude Code?
Run `npx skills add tech-leads-club/agent-skills --skill perf-astro -a claude-code`. Or copy the skill folder (packages/skills-catalog/skills/(performance)/perf-astro in tech-leads-club/agent-skills) into .claude/skills/perf-astro in your project. Claude Code loads it when a task matches its description.
How do I install Perf Astro in Codex?
Run `npx skills add tech-leads-club/agent-skills --skill perf-astro -a codex`. Or copy the skill folder (packages/skills-catalog/skills/(performance)/perf-astro in tech-leads-club/agent-skills) into .agents/skills/perf-astro in your project. Codex loads it when a task matches its description.
Can I use Perf Astro 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 tech-leads-club/agent-skills --skill perf-astro -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/perf-astro, .gemini/skills/perf-astro, .github/skills/perf-astro and .opencode/skills/perf-astro in your project.
What does Perf Astro need to run?
Going by SKILL.md and its folder, Perf Astro needs the command-line tools its instructions call (npm and npx). Our summary lists: Node.js.
Does Perf Astro access the network?
SKILL.md names 2 domains. In commands or code: fonts.googleapis.com and fonts.gstatic.com; the agent is likely to contact these when it follows the instructions. This is read from the text; nothing was executed.
Is Perf Astro 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 Perf Astro use?
Perf Astro has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Perf Astro use?
About 923 tokens (SKILL.md is roughly 3.7k 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 Perf Astro?
Skills that share tags, products or a category with Perf Astro: Tabler Astro Dev Server (tabler/tabler, 42k stars), Tabler Astro Component Scripts (tabler/tabler, 42k stars), Kill AI Slop (yetone/kill-ai-slop, 1.3k stars) and Motion Dev Animations (199-biotechnologies/motion-dev-animations-skill, 133 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Perf Astro?
tech-leads-club (a GitHub organization) maintains it in tech-leads-club/agent-skills, which has 7,045 GitHub stars. The repository holds 74 skills in this directory. The repository was last updated on October 9, 2026.
Source: tech-leads-club/agent-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.