Agent skills by handsontable

Guides writing and changing Playwright end-to-end tests for Handsontable using page objects, data-testid hooks and deterministic waits.

handsontable/handsontable

Guides changes to the @handsontable/angular-wrapper package: the HotTableComponent lifecycle, NgZone performance handling, settings services and the ng-packagr build.

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/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.

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/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.

handsontable/handsontable

Sets the rules for writing Handsontable documentation examples in JavaScript, TypeScript, React, Angular and Vue, with the imports, registration and licence key each needs.

handsontable/handsontable

Explains how to add or change the demo pages that Handsontable's visual regression suite photographs, including per-feature routes in the js demo and the shared grid.

handsontable/handsontable

Builds two throwaway HTML test pages for a Handsontable pull request, one on the released CDN version and one on the local build, to compare behavior side by side.

handsontable/handsontable

Explains how to build or change a Handsontable cell type that bundles an editor, renderer and validator under one registered name, including registration steps and value rules.

handsontable/handsontable

Routes any change to the handsontable core package to the right specialist skill, by task type such as plugin, editor, renderer or validator, after a mandatory architecture review.

handsontable/handsontable

Guides building a new Handsontable cell editor through its four-state lifecycle, DOM setup, viewport-aware positioning and async validation, matching the grid's existing editor classes.

handsontable/handsontable

Rules for creating or changing a Handsontable plugin: file layout, lifecycle, hook registration, settings, conflict registration and IndexMapper use.

handsontable/handsontable

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.

handsontable/handsontable

Conventions for Handsontable's Jest unit and TypeScript type tests: where files go, how to run them, mocking limits and when to write an E2E test instead.

handsontable/handsontable

Rules for writing a Handsontable cell validator: a callback-based function bound to the cell properties that must always call back and never modify data or the DOM.

handsontable/handsontable

How to add user-facing text to Handsontable through language constants and locale files, and how to handle right-to-left layouts, IME input and locale-aware casing.

handsontable/handsontable

Conventions for .mjs files in the Handsontable monorepo: native node: imports, top-level await, the tasks.json dispatcher and native modules instead of extra dependencies.

handsontable/handsontable

Guide to Handsontable's performance-tests package: Playwright scenarios measured through CDP traces and compared against golden baselines taken from the develop branch.

handsontable/handsontable

Walks through opening a pull request in the Handsontable monorepo: branch naming, pre-flight checks, the PR template, draft creation and the PR-first changelog flow.

handsontable/handsontable

Guide to Playwright visual regression tests in Handsontable: when a screenshot is justified, the tablePage fixture, naming, reg-suit comparison and demo routes.

handsontable/handsontable

Rules for changing Handsontable's Walkontable rendering engine: the TableView boundary, dependency injection through wire.ts and DOM geometry reads via GeometryReader.

handsontable/handsontable

Rules for writing Handsontable guide pages: required frontmatter, page structure, framework-specific example embedding, writing style and sidebar registration.

handsontable/handsontable

Reviews Handsontable monorepo changes across architecture, code quality, performance and accessibility, and tests, with a confidence rating on every finding.

handsontable/handsontable

Rules for styling Handsontable themes: CSS custom properties as the public API, SCSS file layout, cell padding from variables, and a ban on :has() selectors.

handsontable/handsontable

Guides edits to Handsontable's frozen Jasmine and Puppeteer E2E specs, and sends new or broken tests to Playwright instead.

handsontable/handsontable

Explains how the @handsontable/react-wrapper package is built, from its components and settings mapping to selection handling and the generated TypeScript declarations.

handsontable/handsontable

Refactoring rules for Handsontable code: SOLID applied to plugins, Law of Demeter fixes, performance patterns and strict protection of backward compatibility.

handsontable/handsontable

Keeps tests honest: write them from the requirement, treat the code as the first suspect when a test is red, and refuse every way of faking a passing run.

handsontable/handsontable

Explains how to run and write tests for Handsontable's Walkontable rendering engine, which has its own Jasmine, Puppeteer and Jest pipelines apart from the main E2E tests.

handsontable/handsontable

A skill your agent uses when developing or modifying the @handsontable/vue3 wrapper package - Vue 3 SFC components, deep watchers, and provide/inject patterns for settings propagation

handsontable/handsontable