React Doctor
makeplane/plane
Scans React code for lint, accessibility, bundle size and architecture issues, reports a health score and checks that changes do not lower it.
A skill your agent uses when auditing slow page loads, heavy assets, or rendering delays related to Enable HTTP/2 or HTTP/3.
Install Http2
$ npx skills add thedaviddias/Front-End-Checklist --skill http2 -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install thedaviddias/Front-End-Checklist http2 --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/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/http2 .claude/skills/http2 && 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 "http2" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/http2 into .claude/skills/http2/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "http2", 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/thedaviddias/Front-End-Checklist/tree/main/skills/http2Type 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 thedaviddias/Front-End-Checklist --skill http2 -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install thedaviddias/Front-End-Checklist http2 --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/http2 .agents/skills/http2 && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "http2" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/http2 into .agents/skills/http2/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "http2", 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 thedaviddias/Front-End-Checklist --skill http2 -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install thedaviddias/Front-End-Checklist http2 --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/http2 .cursor/skills/http2 && 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 "http2" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/http2 into .cursor/skills/http2/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "http2", 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/thedaviddias/Front-End-Checklist.git --path skills/http2--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 thedaviddias/Front-End-Checklist --skill http2 -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install thedaviddias/Front-End-Checklist http2 --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/http2 .gemini/skills/http2 && 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 "http2" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/http2 into .gemini/skills/http2/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "http2", 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 thedaviddias/Front-End-Checklist http2Installs 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 thedaviddias/Front-End-Checklist --skill http2 -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/http2 .github/skills/http2 && 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 "http2" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/http2 into .github/skills/http2/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "http2", 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 thedaviddias/Front-End-Checklist --skill http2 -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install thedaviddias/Front-End-Checklist http2 --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/http2 .opencode/skills/http2 && 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 "http2" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/http2 into .opencode/skills/http2/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "http2", 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
http2- GitHub stars
- 74k
- Token cost
- ~395 tokens
- SKILL.md length
- 155 words
- Files
- 2 (incl. references)
- Skills in repo
- 390
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when auditing slow page loads, heavy assets, or rendering delays related to Enable HTTP/2 or HTTP/3.
- Auditing slow page loads
- SKILL.md covers Quick Reference, Check, Fix and Explain, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Rendering delays related to Enable HTTP/2
What it does
Http2 is an agent skill from thedaviddias/Front-End-Checklist. Use when auditing slow page loads, heavy assets, or rendering delays related to Enable HTTP/2 or HTTP/3. Verify the actual bottleneck in DevTools, Lighthouse, or field data before recommending changes.
Its SKILL.md is about 400 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/rule.md`).
It sits in Frontend & Design, covering Web performance. The repository describes itself as: 🗂 The essential checklist for modern web development, for humans and AI agents. The licence is MIT.
When your agent uses it
- Auditing slow page loads
- Rendering delays related to Enable HTTP/2
Example prompts
- “/http2”
What it can do on your machine
Read from SKILL.md and the folder at commit e8d14d0. 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
Links to these hosts (documentation or services it may open):
frontendchecklist.io
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
Http2 loads about 395 tokens when it runs, and up to ~1.4k if it reads all its reference files. Until then it costs about 52 tokens; SKILL.md has 155 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 thedaviddias/Front-End-Checklist at commit e8d14d0, republished under its MIT licence (© thedaviddias). 155 words, ~395 tokens.
Download SKILL.mdSave it as
.claude/skills/http2/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- http2
- description
- Use when auditing slow page loads, heavy assets, or rendering delays related to Enable HTTP/2 or HTTP/3. Verify the actual bottleneck in DevTools, Lighthouse, or field data before recommending changes.
- metadata.category
- performance
- metadata.priority
- high
- metadata.difficulty
- intermediate
- metadata.estimatedTime
- 15
- metadata.source
- frontendchecklist.io
- metadata.url
- https://frontendchecklist.io/rules/performance/http2
Enable HTTP/2 or HTTP/3
Modern HTTP protocols significantly reduce the impact of latency and allow multiple resources to be downloaded simultaneously over a single connection, leading to much faster page loads.
Quick Reference
- Enable HTTP/2 or HTTP/3 for request multiplexing
- Eliminate the need for resource concatenation
- Reduce overhead with header compression
Check
Verify that the server is serving resources over HTTP/2 or HTTP/3 using browser DevTools or online checkers.
Fix
Enable HTTP/2 or HTTP/3 in your web server (Nginx, Apache) or via a CDN/load balancer.
Explain
Explain the advantages of HTTP/2 and HTTP/3 over HTTP/1.1, such as multiplexing and header compression.
Code Review
Review the routes, assets, and loading behavior that affect Enable HTTP/2 or HTTP/3. Flag exact files, requests, or rendering steps that add unnecessary network, CPU, or layout cost, and describe the measurement method used to confirm the issue.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/rules/performance/http2
© thedaviddias, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file (references) in skills/http2 of thedaviddias/Front-End-Checklist.
- SKILL.md
- references/rule.md
Open the folder on GitHubat commit e8d14d0
Compare with similar skills
Http2 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 |
|---|---|---|---|---|---|---|
| Http2 this skillthedaviddias/Front-End-Checklist | 74k | — | ~395 | Automated safety check: Pass | MIT | |
| React Doctormakeplane/plane | 60k | 12 repos | ~657 | Automated safety check: Pass | AGPL-3.0 | |
| Fixing Motion Performanceibelick/ui-skills | 9.4k | 5 repos | ~1.4k | Automated safety check: Pass | MIT | |
| GSAP Performance Tuninggreensock/gsap-skills | 16k | 4 repos | ~1k | Automated safety check: Pass | MIT | |
| React Frontend Development Guidelinesdiet103/claude-code-infrastructure-showcase | 10k | 2 repos | ~2.9k | Automated safety check: Pass | MIT | |
| Web Quality Auditaddyosmani/web-quality-skills | 2.9k | — | ~2.6k | Automated safety check: Pass | MIT |
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Fixing Motion Performance
ibelick/ui-skills
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GSAP Performance Tuning
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Guides the agent to keep GSAP animations smooth by animating transforms and opacity, batching DOM reads and writes, and avoiding layout-heavy properties.
React Frontend Development Guidelines
diet103/claude-code-infrastructure-showcase
Guidelines for React 18 and TypeScript apps covering Suspense data fetching, lazy loading, feature folders, MUI v7 styling, TanStack Router and performance.
Web Quality Audit
addyosmani/web-quality-skills
Run an evidence-led web quality audit covering performance, accessibility, SEO, best practices, and agentic browsing.
SEO Google
AgriciDaniel/codex-seo
Google SEO APIs: Search Console (Search Analytics, URL Inspection, Sitemaps), PageSpeed Insights v5, CrUX field data with 25-week history, Indexing API v3, and GA4 organic traffic.
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Related
Categories
Questions about Http2
What does Http2 do?
A skill your agent uses when auditing slow page loads, heavy assets, or rendering delays related to Enable HTTP/2 or HTTP/3. Http2 is an agent skill from thedaviddias/Front-End-Checklist. Use when auditing slow page loads, heavy assets, or rendering delays related to Enable HTTP/2 or HTTP/3.
When should I use Http2?
Http2 fits situations like: auditing slow page loads; rendering delays related to Enable HTTP/2.
How do I install Http2 in Claude Code?
Run `npx skills add thedaviddias/Front-End-Checklist --skill http2 -a claude-code`. Or copy the skill folder (skills/http2 in thedaviddias/Front-End-Checklist) into .claude/skills/http2 in your project. Claude Code loads it when a task matches its description.
How do I install Http2 in Codex?
Run `npx skills add thedaviddias/Front-End-Checklist --skill http2 -a codex`. Or copy the skill folder (skills/http2 in thedaviddias/Front-End-Checklist) into .agents/skills/http2 in your project. Codex loads it when a task matches its description.
Can I use Http2 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 thedaviddias/Front-End-Checklist --skill http2 -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/http2, .gemini/skills/http2, .github/skills/http2 and .opencode/skills/http2 in your project.
What does Http2 need to run?
SKILL.md names no scripts, command-line tools or credentials: Http2 is instructions for the agent only.
Does Http2 access the network?
SKILL.md names 1 domain. As links in the text: frontendchecklist.io. This is read from the text; nothing was executed.
Is Http2 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 Http2 use?
Http2 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 Http2 use?
About 395 tokens (SKILL.md is roughly 1.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1k tokens, read only when the agent opens those files.
What are the alternatives to Http2?
Skills that share tags, products or a category with Http2: React Doctor (makeplane/plane, 60k stars), Fixing Motion Performance (ibelick/ui-skills, 9.4k stars), GSAP Performance Tuning (greensock/gsap-skills, 16k stars) and React Frontend Development Guidelines (diet103/claude-code-infrastructure-showcase, 10k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Http2?
thedaviddias (a GitHub user) maintains it in thedaviddias/Front-End-Checklist, which has 74,388 GitHub stars. The repository holds 390 skills in this directory. The repository was last updated on October 6, 2026.
Source: thedaviddias/Front-End-Checklist on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.