Cloudflare Workers Performance
secondsky/claude-skills
Cloudflare Workers performance optimization with CPU, memory, caching, bundle size.
A skill your agent uses when auditing slow page loads, heavy assets, or rendering delays related to Enable browser caching.
Install Browser Caching
$ npx skills add thedaviddias/Front-End-Checklist --skill browser-caching -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install thedaviddias/Front-End-Checklist browser-caching --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/browser-caching .claude/skills/browser-caching && 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 "browser-caching" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/browser-caching into .claude/skills/browser-caching/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-caching", 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/browser-cachingType 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 browser-caching -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install thedaviddias/Front-End-Checklist browser-caching --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/browser-caching .agents/skills/browser-caching && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "browser-caching" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/browser-caching into .agents/skills/browser-caching/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-caching", 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 browser-caching -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install thedaviddias/Front-End-Checklist browser-caching --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/browser-caching .cursor/skills/browser-caching && 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 "browser-caching" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/browser-caching into .cursor/skills/browser-caching/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-caching", 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/browser-caching--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 browser-caching -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install thedaviddias/Front-End-Checklist browser-caching --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/browser-caching .gemini/skills/browser-caching && 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 "browser-caching" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/browser-caching into .gemini/skills/browser-caching/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-caching", 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 browser-cachingInstalls 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 browser-caching -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/browser-caching .github/skills/browser-caching && 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 "browser-caching" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/browser-caching into .github/skills/browser-caching/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-caching", 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 browser-caching -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 browser-caching --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/browser-caching .opencode/skills/browser-caching && 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 "browser-caching" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/browser-caching into .opencode/skills/browser-caching/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-caching", 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
browser-caching- GitHub stars
- 74k
- Token cost
- ~399 tokens
- SKILL.md length
- 142 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 browser caching.
- 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 browser caching
What it does
Browser Caching is an agent skill from thedaviddias/Front-End-Checklist. Use when auditing slow page loads, heavy assets, or rendering delays related to Enable browser caching. 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 Backend & APIs, covering Caching and 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 browser caching
Example prompts
- “/browser-caching”
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
Browser Caching loads about 399 tokens when it runs, and up to ~2k if it reads all its reference files. Until then it costs about 54 tokens; SKILL.md has 142 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). 142 words, ~399 tokens.
Download SKILL.mdSave it as
.claude/skills/browser-caching/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- browser-caching
- description
- Use when auditing slow page loads, heavy assets, or rendering delays related to Enable browser caching. Verify the actual bottleneck in DevTools, Lighthouse, or field data before recommending changes.
- metadata.category
- performance
- metadata.priority
- high
- metadata.difficulty
- intermediate
- metadata.estimatedTime
- 20
- metadata.source
- frontendchecklist.io
- metadata.url
- https://frontendchecklist.io/rules/performance/browser-caching
Enable browser caching
Proper caching eliminates redundant downloads on repeat visits—returning users see near-instant page loads when assets are served from browser cache.
Quick Reference
- Use immutable caching for hashed assets (1 year max-age)
- Use short cache + revalidation for HTML pages
- ETags enable efficient cache validation
- stale-while-revalidate improves perceived performance
Check
Verify that proper cache headers are set for static resources to enable browser caching.
Fix
Configure appropriate Cache-Control and ETag headers for different resource types.
Explain
Explain how browser caching reduces server requests and improves repeat visit performance.
Code Review
Review the routes, assets, and loading behavior that affect Enable browser caching. 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/browser-caching
© 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/browser-caching of thedaviddias/Front-End-Checklist.
- SKILL.md
- references/rule.md
Open the folder on GitHubat commit e8d14d0
Compare with similar skills
Browser Caching 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 |
|---|---|---|---|---|---|---|
| Browser Caching this skillthedaviddias/Front-End-Checklist | 74k | — | ~399 | Automated safety check: Pass | MIT | |
| Cloudflare Workers Performancesecondsky/claude-skills | 227 | — | ~1.6k | Automated safety check: Pass | MIT | |
| Vercel Performance Tuningjeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~2.1k | Automated safety check: Pass | MIT | |
| Nextjsericrisco/rsc-harness | 174 | — | ~5.1k | Automated safety check: Pass | MIT | |
| Angular Clean Architecturefmflurry/settings-opencode | 171 | — | ~3.6k | Automated safety check: Pass | MIT | |
| Performance Capacitymajiayu000/spellbook | 287 | — | ~501 | Automated safety check: Pass | MIT |
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jeremylongshore/tons-of-skills-marketplace
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Nextjs
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A skill your agent uses when building, reviewing, testing, securing, or optimizing a Next.js App Router app: Server vs Client boundaries, use server actions, route handlers, the v15 vs v16 use cache…
Angular Clean Architecture
fmflurry/settings-opencode
Scaffolds and extends Angular standalone feature MODULES under src/app/modules/{name} using Clean Architecture layering (presentation/application/core/infrastructure), a self-registering module…
Performance Capacity
majiayu000/spellbook
Plan, diagnose, and verify performance budgets, latency targets, load tests, capacity estimates, bottleneck analysis, caching strategy, query efficiency, queue throughput, and regression gates.
High Perf Browser
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Optimize web performance through network protocols, resource loading, and browser rendering internals.
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Related
Categories
Questions about Browser Caching
What does Browser Caching do?
A skill your agent uses when auditing slow page loads, heavy assets, or rendering delays related to Enable browser caching. Browser Caching is an agent skill from thedaviddias/Front-End-Checklist. Use when auditing slow page loads, heavy assets, or rendering delays related to Enable browser caching.
When should I use Browser Caching?
Browser Caching fits situations like: auditing slow page loads; rendering delays related to Enable browser caching.
How do I install Browser Caching in Claude Code?
Run `npx skills add thedaviddias/Front-End-Checklist --skill browser-caching -a claude-code`. Or copy the skill folder (skills/browser-caching in thedaviddias/Front-End-Checklist) into .claude/skills/browser-caching in your project. Claude Code loads it when a task matches its description.
How do I install Browser Caching in Codex?
Run `npx skills add thedaviddias/Front-End-Checklist --skill browser-caching -a codex`. Or copy the skill folder (skills/browser-caching in thedaviddias/Front-End-Checklist) into .agents/skills/browser-caching in your project. Codex loads it when a task matches its description.
Can I use Browser Caching 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 browser-caching -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/browser-caching, .gemini/skills/browser-caching, .github/skills/browser-caching and .opencode/skills/browser-caching in your project.
What does Browser Caching need to run?
SKILL.md names no scripts, command-line tools or credentials: Browser Caching is instructions for the agent only.
Does Browser Caching 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 Browser Caching 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 Browser Caching use?
Browser Caching 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 Browser Caching use?
About 399 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 1.6k tokens, read only when the agent opens those files.
What are the alternatives to Browser Caching?
Skills that share tags, products or a category with Browser Caching: Cloudflare Workers Performance (secondsky/claude-skills, 227 stars), Vercel Performance Tuning (jeremylongshore/tons-of-skills-marketplace, 2.8k stars), Nextjs (ericrisco/rsc-harness, 174 stars) and Angular Clean Architecture (fmflurry/settings-opencode, 171 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Browser Caching?
thedaviddias (a GitHub user) maintains it in thedaviddias/Front-End-Checklist, which has 74,412 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.