Frontend Code Review
langgenius/dify
Reviews frontend changes under `web/` or `packages/dify-ui/` for concrete defects and broken project contracts, using routed rule packs and a severity scale for findings.
Rules for writing a Handsontable cell renderer: a pure function that calls baseRenderer first, sets text safely and stays cheap because it runs for every visible cell.
Install Handsontable Renderer Development
$ npx skills add handsontable/handsontable --skill handsontable-renderer-dev -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install handsontable/handsontable handsontable-renderer-dev --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/handsontable/handsontable.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/handsontable-renderer-dev .claude/skills/handsontable-renderer-dev && 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 "handsontable-renderer-dev" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/handsontable-renderer-dev into .claude/skills/handsontable-renderer-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "handsontable-renderer-dev", 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/handsontable/handsontable/tree/develop/.claude/skills/handsontable-renderer-devType 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 handsontable/handsontable --skill handsontable-renderer-dev -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install handsontable/handsontable handsontable-renderer-dev --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/handsontable-renderer-dev .agents/skills/handsontable-renderer-dev && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "handsontable-renderer-dev" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/handsontable-renderer-dev into .agents/skills/handsontable-renderer-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "handsontable-renderer-dev", 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 handsontable/handsontable --skill handsontable-renderer-dev -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install handsontable/handsontable handsontable-renderer-dev --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/handsontable-renderer-dev .cursor/skills/handsontable-renderer-dev && 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 "handsontable-renderer-dev" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/handsontable-renderer-dev into .cursor/skills/handsontable-renderer-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "handsontable-renderer-dev", 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/handsontable/handsontable.git --path .claude/skills/handsontable-renderer-dev--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 handsontable/handsontable --skill handsontable-renderer-dev -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install handsontable/handsontable handsontable-renderer-dev --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/handsontable-renderer-dev .gemini/skills/handsontable-renderer-dev && 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 "handsontable-renderer-dev" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/handsontable-renderer-dev into .gemini/skills/handsontable-renderer-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "handsontable-renderer-dev", 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 handsontable/handsontable handsontable-renderer-devInstalls 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 handsontable/handsontable --skill handsontable-renderer-dev -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/handsontable-renderer-dev .github/skills/handsontable-renderer-dev && 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 "handsontable-renderer-dev" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/handsontable-renderer-dev into .github/skills/handsontable-renderer-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "handsontable-renderer-dev", 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 handsontable/handsontable --skill handsontable-renderer-dev -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install handsontable/handsontable handsontable-renderer-dev --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/handsontable-renderer-dev .opencode/skills/handsontable-renderer-dev && 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 "handsontable-renderer-dev" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/handsontable-renderer-dev into .opencode/skills/handsontable-renderer-dev/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "handsontable-renderer-dev", 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
handsontable-renderer-dev- GitHub stars
- 22k
- Token cost
- ~789 tokens
- SKILL.md length
- 305 words
- Files
- 1
- Skills in repo
- 31
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Rules for writing a Handsontable cell renderer: a pure function that calls baseRenderer first, sets text safely and stays cheap because it runs for every visible cell.
- Creating a new Handsontable cell renderer
- SKILL.md covers Signature, Rules, Files and Reference implementations, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Changing how an existing renderer displays cell content
What it does
A renderer is a pure function taking the Handsontable instance, the TD element, row, column, property, value and cell properties, with no class or state. It must call baseRenderer first, which applies the readonly and invalid CSS classes, ARIA attributes and other standard setup, and then it changes only the TD's content and attributes. Interactivity, event listeners and data changes belong in an editor or plugin.
Safety rules call for setting text with fastInnerText, escaping user content before any innerHTML, handling null and undefined, and updating ARIA attributes when the cell's role or state changes. To manage children, getCellContentRoot returns the clip wrapper that rows at an exact height use, so nodes are not left outside it. Renderers sit in their own folder under src/renderers and are registered with registerRenderer, with the text, HTML, numeric and checkbox renderers as models. Because they run for every viewport cell on every render, layout reads and allocations stay out of the hot path.
When your agent uses it
- Creating a new Handsontable cell renderer
- Changing how an existing renderer displays cell content
- Reviewing a renderer for XSS safety and render performance
Example prompts
- “Write a renderer that shows a status badge in the cell and keeps the ARIA attributes correct.”
- “Review my custom renderer for unescaped user content before it reaches innerHTML.”
- “Why does my renderer make the row grow back on every draw?”
Requirements
- A checkout of the Handsontable repository
What it can do on your machine
Read from SKILL.md and the folder at commit 68b5e97. 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 (its code samples are javascript).
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
Handsontable Renderer Development loads about 789 tokens when it runs. Until then it costs about 52 tokens; SKILL.md has 305 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 305 words (~789 tokens).
“Renderers are pure functions, no class or state:”
- name
- handsontable-renderer-dev
- path
- handsontable/src/renderers/**
Files
Just SKILL.md in .claude/skills/handsontable-renderer-dev of handsontable/handsontable.
Open the folder on GitHubat commit 68b5e97
Compare with similar skills
Handsontable Renderer Development 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 |
|---|---|---|---|---|---|---|
| Handsontable Renderer Development this skillhandsontable/handsontable | 22k | — | ~789 | Automated safety check: Pass | Custom licence | |
| Frontend Code Reviewlanggenius/dify | 158k | — | ~938 | Automated safety check: Pass | Custom licence | |
| Frontend Engineer Workflownanocoai/nanoclaw | 31k | — | ~1.5k | Automated safety check: Pass | MIT | |
| Senior Frontendborghei/Claude-Skills | 874 | — | ~1.7k | Automated safety check: Pass | MIT | |
| Designericrisco/rsc-harness | 156 | — | ~6.6k | Automated safety check: Pass | MIT | |
| Frontend Developertheneoai/awesome-skills | 183 | — | ~2.2k | Automated safety check: Pass | MIT |
Similar skills
Frontend Engineer Workflow
nanocoai/nanoclaw
Sets a build, test and verify routine for web projects: write typed, accessible code and never call work done until it is checked in a real browser with screenshots.
Senior Frontend
borghei/Claude-Skills
Frontend development for React, Next.js, TypeScript, and Tailwind CSS.
Design
ericrisco/rsc-harness
A skill your agent uses when designing or refreshing a web UI or landing page — visual concept, type/color/spacing/motion tokens, composition, rescuing a UI that reads AI-generic, or a graded design…
Frontend Developer
theneoai/awesome-skills
Elite Frontend Developer skill with expertise in React, Vue, TypeScript, modern CSS architecture, performance optimization (Core Web Vitals), accessibility (WCAG 2.1), and state management.
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.
More from handsontable/handsontable
All 31 skills in this repoHandsontable Playwright E2E Tests
handsontable/handsontable
Guides writing and changing Playwright end-to-end tests for Handsontable using page objects, data-testid hooks and deterministic waits.
Handsontable Angular Wrapper Development
handsontable/handsontable
Guides changes to the @handsontable/angular-wrapper package: the HotTableComponent lifecycle, NgZone performance handling, settings services and the ng-packagr build.
BrowserStack Live Testing
handsontable/handsontable
Opens a live BrowserStack session on a real Android, iOS or desktop browser for a local or public URL, tunneling localhost through Cloudflare when needed.
Handsontable Changelog Entry
handsontable/handsontable
Decides whether a code change needs a changelog entry and creates the JSON file in .changelogs with the right type, framework and user-facing title.
Code Review Graph Navigator
handsontable/handsontable
Queries a pre-built, Tree-sitter-based code graph of the whole monorepo instead of grepping call chains, for exploring, debugging, refactoring or reviewing code.
Handsontable Coordinate Systems
handsontable/handsontable
Explains Handsontable's physical, visual and renderable row and column coordinate spaces and how to convert between them with IndexMapper, for debugging misplaced rows or columns.
Related
Categories
Questions about Handsontable Renderer Development
What does Handsontable Renderer Development do?
Rules for writing a Handsontable cell renderer: a pure function that calls baseRenderer first, sets text safely and stays cheap because it runs for every visible cell. A renderer is a pure function taking the Handsontable instance, the TD element, row, column, property, value and cell properties, with no class or state. It must call baseRenderer first, which applies the readonly and invalid CSS classes, ARIA attributes and other standard setup, and then it changes only the TD's content and attributes.
When should I use Handsontable Renderer Development?
Handsontable Renderer Development fits situations like: creating a new Handsontable cell renderer; changing how an existing renderer displays cell content; reviewing a renderer for XSS safety and render performance.
How do I install Handsontable Renderer Development in Claude Code?
Run `npx skills add handsontable/handsontable --skill handsontable-renderer-dev -a claude-code`. Or copy the skill folder (.claude/skills/handsontable-renderer-dev in handsontable/handsontable) into .claude/skills/handsontable-renderer-dev in your project. Claude Code loads it when a task matches its description.
How do I install Handsontable Renderer Development in Codex?
Run `npx skills add handsontable/handsontable --skill handsontable-renderer-dev -a codex`. Or copy the skill folder (.claude/skills/handsontable-renderer-dev in handsontable/handsontable) into .agents/skills/handsontable-renderer-dev in your project. Codex loads it when a task matches its description.
Can I use Handsontable Renderer Development 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 handsontable/handsontable --skill handsontable-renderer-dev -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/handsontable-renderer-dev, .gemini/skills/handsontable-renderer-dev, .github/skills/handsontable-renderer-dev and .opencode/skills/handsontable-renderer-dev in your project.
What does Handsontable Renderer Development need to run?
SKILL.md names no scripts, command-line tools or credentials: Handsontable Renderer Development is instructions for the agent only. Our summary lists: A checkout of the Handsontable repository.
Does Handsontable Renderer Development 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 Handsontable Renderer Development 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 Handsontable Renderer Development use?
Handsontable Renderer Development 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 Handsontable Renderer Development use?
About 789 tokens (SKILL.md is roughly 3.2k 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 Handsontable Renderer Development?
Skills that share tags, products or a category with Handsontable Renderer Development: Frontend Code Review (langgenius/dify, 158k stars), Frontend Engineer Workflow (nanocoai/nanoclaw, 31k stars), Senior Frontend (borghei/Claude-Skills, 874 stars) and Design (ericrisco/rsc-harness, 156 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Handsontable Renderer Development?
handsontable (a GitHub organization) maintains it in handsontable/handsontable, which has 22,059 GitHub stars. The repository holds 31 skills in this directory. The repository was last updated on October 7, 2026.
Source: handsontable/handsontable on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.