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.
Analyze bundle size analyzer operations. An agent skill from jeremylongshore/tons-of-skills-marketplace.
Install Bundle Size Analyzer
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill bundle-size-analyzer -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace bundle-size-analyzer --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/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/05-frontend-dev/bundle-size-analyzer .claude/skills/bundle-size-analyzer && 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 "bundle-size-analyzer" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/05-frontend-dev/bundle-size-analyzer into .claude/skills/bundle-size-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bundle-size-analyzer", 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/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/05-frontend-dev/bundle-size-analyzerType 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 jeremylongshore/tons-of-skills-marketplace --skill bundle-size-analyzer -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace bundle-size-analyzer --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/05-frontend-dev/bundle-size-analyzer .agents/skills/bundle-size-analyzer && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "bundle-size-analyzer" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/05-frontend-dev/bundle-size-analyzer into .agents/skills/bundle-size-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bundle-size-analyzer", 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 jeremylongshore/tons-of-skills-marketplace --skill bundle-size-analyzer -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace bundle-size-analyzer --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/05-frontend-dev/bundle-size-analyzer .cursor/skills/bundle-size-analyzer && 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 "bundle-size-analyzer" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/05-frontend-dev/bundle-size-analyzer into .cursor/skills/bundle-size-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bundle-size-analyzer", 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/jeremylongshore/tons-of-skills-marketplace.git --path skills/05-frontend-dev/bundle-size-analyzer--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 jeremylongshore/tons-of-skills-marketplace --skill bundle-size-analyzer -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace bundle-size-analyzer --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/05-frontend-dev/bundle-size-analyzer .gemini/skills/bundle-size-analyzer && 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 "bundle-size-analyzer" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/05-frontend-dev/bundle-size-analyzer into .gemini/skills/bundle-size-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bundle-size-analyzer", 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 jeremylongshore/tons-of-skills-marketplace bundle-size-analyzerInstalls 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 jeremylongshore/tons-of-skills-marketplace --skill bundle-size-analyzer -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/05-frontend-dev/bundle-size-analyzer .github/skills/bundle-size-analyzer && 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 "bundle-size-analyzer" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/05-frontend-dev/bundle-size-analyzer into .github/skills/bundle-size-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bundle-size-analyzer", 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 jeremylongshore/tons-of-skills-marketplace --skill bundle-size-analyzer -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace bundle-size-analyzer --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/05-frontend-dev/bundle-size-analyzer .opencode/skills/bundle-size-analyzer && 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 "bundle-size-analyzer" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/05-frontend-dev/bundle-size-analyzer into .opencode/skills/bundle-size-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bundle-size-analyzer", 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
bundle-size-analyzer- GitHub stars
- 2.8k
- Token cost
- ~576 tokens
- SKILL.md length
- 197 words
- Files
- 1
- Skills in repo
- 3,342
- Repo updated
- First seen
- Licence
- MIT
At a glance
Analyze bundle size analyzer operations. An agent skill from jeremylongshore/tons-of-skills-marketplace.
- Works in 4 steps: Provides step-by-step guidance for… → Follows industry best practices and… → Generates production-ready code and… → …
- : bundle size analyzer
- SKILL.md covers Overview, When to Use, Instructions and Examples, plus 5 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Bundle Size Analyzer is an agent skill from jeremylongshore/tons-of-skills-marketplace. Analyze bundle size analyzer operations. Auto-activating skill for Frontend Development. Triggers on: bundle size analyzer, bundle size analyzer Part of the Frontend Development skill category. Use when analyzing or auditing bundle size analyzer. Trigger with phrases like "bundle size analyzer", "bundle analyzer", "analyze bundle size r".
Its SKILL.md is about 580 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: Designed for Claude Code
It sits in Frontend & Design, covering Web performance and Frontend development. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.
When your agent uses it
- : bundle size analyzer
- Bundle size analyzer Part of the Frontend Development skill category
- Auditing bundle size analyzer
- With phrases like bundle size analyzer
Example prompts
- “bundle size analyzer”
- “bundle analyzer”
- “analyze bundle size r”
- “/bundle-size-analyzer”
Requirements
- Compatibility (from SKILL.md): Designed for Claude Code
- Pre-approved tools (allowed-tools): Read, Write, Edit, Bash(cmd:*), Grep
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Provides step-by-step guidance for bundle size analyzer
- Follows industry best practices and patterns
- Generates production-ready code and configurations
- Validates outputs against common standards
What it can do on your machine
Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadWriteEditBash(cmd:*)Grep
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.
Compatibility
Designed for Claude Code
From compatibility in the SKILL.md frontmatter.
Context cost
Bundle Size Analyzer loads about 576 tokens when it runs. Until then it costs about 90 tokens; SKILL.md has 197 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 jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 197 words, ~576 tokens.
Download SKILL.mdSave it as
.claude/skills/bundle-size-analyzer/SKILL.md (or your agent's skills folder).- name
- bundle-size-analyzer
- description
- Analyze bundle size analyzer operations. Auto-activating skill for Frontend Development. Triggers on: bundle size analyzer, bundle size analyzer Part of the Frontend Development skill category. Use when analyzing or auditing bundle size analyzer. Trigger with phrases like "bundle size analyzer", "bundle analyzer", "analyze bundle size r".
- allowed-tools
- Read, Write, Edit, Bash(cmd:*), Grep
- compatibility
- Designed for Claude Code
- version
- 1.0.0
- license
- MIT
- author
- Jeremy Longshore <jeremy@intentsolutions.io>
- tags
- frontend, development
Bundle Size Analyzer
Overview
This skill provides automated assistance for bundle size analyzer tasks within the Frontend Development domain.
When to Use
This skill activates automatically when you:
- Mention "bundle size analyzer" in your request
- Ask about bundle size analyzer patterns or best practices
- Need help with frontend skills covering react, vue, css, accessibility, performance optimization, and modern web development patterns.
Instructions
- Provides step-by-step guidance for bundle size analyzer
- Follows industry best practices and patterns
- Generates production-ready code and configurations
- Validates outputs against common standards
Examples
Example: Basic Usage Request: "Help me with bundle size analyzer" Result: Provides step-by-step guidance and generates appropriate configurations
Prerequisites
- Relevant development environment configured
- Access to necessary tools and services
- Basic understanding of frontend development concepts
Output
- Generated configurations and code
- Best practice recommendations
- Validation results
Error Handling
| Error | Cause | Solution |
|---|---|---|
| Configuration invalid | Missing required fields | Check documentation for required parameters |
| Tool not found | Dependency not installed | Install required tools per prerequisites |
| Permission denied | Insufficient access | Verify credentials and permissions |
Resources
- Official documentation for related tools
- Best practices guides
- Community examples and tutorials
Related Skills
Part of the Frontend Development skill category. Tags: react, vue, css, accessibility, web
© jeremylongshore, 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 skills/05-frontend-dev/bundle-size-analyzer of jeremylongshore/tons-of-skills-marketplace.
Open the folder on GitHubat commit cfae287
Compare with similar skills
Bundle Size Analyzer 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 |
|---|---|---|---|---|---|---|
| Bundle Size Analyzer this skilljeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~576 | Automated safety check: Pass | MIT | |
| React Frontend Development Guidelinesdiet103/claude-code-infrastructure-showcase | 10k | 2 repos | ~2.9k | Automated safety check: Pass | MIT | |
| Frontend DevelopmentOpenHands/OpenHands | 90k | — | ~324 | Automated safety check: Pass | MIT | |
| Angular ArchitectJeffallan/claude-skills | 12k | — | ~1.5k | Automated safety check: Pass | MIT | |
| Senior Frontendalirezarezvani/claude-skills | 28k | 5 repos | ~3.9k | Automated safety check: Pass | MIT | |
| Next.js DeveloperJeffallan/claude-skills | 12k | — | ~1.4k | Automated safety check: Pass | MIT |
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Builds Angular 17+ features with standalone components, signals, NgRx state, RxJS patterns and lazy-loaded routing, then checks bundle size and test coverage.
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Related
Categories
Questions about Bundle Size Analyzer
What does Bundle Size Analyzer do?
Analyze bundle size analyzer operations. An agent skill from jeremylongshore/tons-of-skills-marketplace. Bundle Size Analyzer is an agent skill from jeremylongshore/tons-of-skills-marketplace. Analyze bundle size analyzer operations.
When should I use Bundle Size Analyzer?
Bundle Size Analyzer fits situations like: : bundle size analyzer; bundle size analyzer Part of the Frontend Development skill category; auditing bundle size analyzer; with phrases like bundle size analyzer.
How do I install Bundle Size Analyzer in Claude Code?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill bundle-size-analyzer -a claude-code`. Or copy the skill folder (skills/05-frontend-dev/bundle-size-analyzer in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/bundle-size-analyzer in your project. Claude Code loads it when a task matches its description.
How do I install Bundle Size Analyzer in Codex?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill bundle-size-analyzer -a codex`. Or copy the skill folder (skills/05-frontend-dev/bundle-size-analyzer in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/bundle-size-analyzer in your project. Codex loads it when a task matches its description.
Can I use Bundle Size Analyzer 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 jeremylongshore/tons-of-skills-marketplace --skill bundle-size-analyzer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/bundle-size-analyzer, .gemini/skills/bundle-size-analyzer, .github/skills/bundle-size-analyzer and .opencode/skills/bundle-size-analyzer in your project.
What does Bundle Size Analyzer need to run?
SKILL.md names no scripts, command-line tools or credentials: Bundle Size Analyzer is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Write, Edit, Bash(cmd:*), Grep. Compatibility (from SKILL.md): Designed for Claude Code.
Does Bundle Size Analyzer 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 Bundle Size Analyzer 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 Bundle Size Analyzer use?
Bundle Size Analyzer is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Bundle Size Analyzer use?
About 576 tokens (SKILL.md is roughly 2.3k 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 Bundle Size Analyzer?
Skills that share tags, products or a category with Bundle Size Analyzer: React Frontend Development Guidelines (diet103/claude-code-infrastructure-showcase, 10k stars), Frontend Development (OpenHands/OpenHands, 90k stars), Angular Architect (Jeffallan/claude-skills, 12k stars) and Senior Frontend (alirezarezvani/claude-skills, 28k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Bundle Size Analyzer?
jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.
Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.