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update-component

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Update an existing Blade component (web only) using Figma designs and knowledgebase documentation

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How to use this skill

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Source SKILL.md: https://github.com/razorpay/blade/blob/HEAD/.agents/skills/update-component/SKILL.md

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Update Component

Update an existing Blade component (web only) using Figma designs and knowledgebase documentation.

Usage

/update-component <ComponentName> <FigmaURL>

Example:

/update-component Popover https://www.figma.com/design/jubmQL9Z8V7881ayUD95ps/Blade-DSL?node-id=115756-259386

Instructions

Step 1: Gather Component Information

  1. Read the knowledgebase documentation:

    • Path: packages/blade-mcp/knowledgebase/components/<ComponentName>.md
    • Contains: TypeScript types, props, and usage examples

  2. Read the existing component implementation:

    • Path: packages/blade/src/components/<ComponentName>/
    • Key files: types.ts, <ComponentName>.web.tsx, index.ts, constants.ts
    • Skip native files - Only update .web.tsx files

Step 2: Get Figma Design Context

Parse the provided Figma URL to extract:

  • fileKey: The unique file identifier from the URL path
  • nodeId: From node-id= param, convert - to : (e.g., 115756-259386 → 115756:259386)

Use the Figma MCP tools to get complete design information:

2.1 Get Design Context (Component Structure)

Tool: user-Figma → get_design_context
Arguments:
  - fileKey: "<extracted-file-key>"
  - nodeId: "<extracted-node-id>"
  - clientLanguages: "typescript"
  - clientFrameworks: "react"
  - disableCodeConnect: true

Returns:

  • Component hierarchy and structure
  • CSS/styling classes (Tailwind format)
  • Component descriptions and documentation links
  • Asset URLs for images/icons

2.2 Get Variable Definitions (Design Tokens)

Tool: user-Figma → get_variable_defs
Arguments:
  - fileKey: "<extracted-file-key>"
  - nodeId: "<extracted-node-id>"
  - clientLanguages: "typescript"
  - clientFrameworks: "react"

Returns a JSON object with all design tokens used in the component.

2.3 Get Screenshot (Visual Reference)

Tool: user-Figma → get_screenshot
Arguments:
  - fileKey: "<extracted-file-key>"
  - nodeId: "<extracted-node-id>"

Returns a visual screenshot of the component for reference.

Step 3: Analyze and Plan Changes

Compare the Figma design with the current implementation:

  1. Compare design tokens: Match Figma variable values with existing Blade constants
  2. Identify new props or variants: Check if new configurations are needed
  3. Check types: Determine if TypeScript types need updating
  4. Plan implementation: Focus on web only (.web.tsx files)
  5. Plan documentation updates: If API changes, update knowledgebase docs

Step 4: Make Changes

Follow this order:

  1. Update types (types.ts) - Add new props, update existing types
  2. Update constants (constants.ts) - Add new defaults or constants
  3. Update web implementation (*.web.tsx) - Implement the changes
  4. Update exports (index.ts) - Export new types/components if needed
  5. Update knowledgebase (packages/blade-mcp/knowledgebase/components/<ComponentName>.md)
  6. Update stories (*.stories.tsx) - Add Storybook examples for new features

Step 5: Check for Errors

Use ReadLints tool on modified files to check for linter errors and fix them.

Component File Structure

packages/blade/src/components/<ComponentName>/
├── __tests__/
├── _decisions/
│   └── decisions.md
├── constants.ts
├── index.ts
├── <ComponentName>.native.tsx   ← IGNORE (native)
├── <ComponentName>.stories.tsx
├── <ComponentName>.web.tsx      ← UPDATE THIS
└── types.ts

Guidelines

  • Web only: Only update .web.tsx files, ignore .native.tsx
  • Follow existing patterns: Study similar components for consistency
  • Maintain backward compatibility: Don't remove existing props without deprecation
  • Keep knowledgebase in sync: Always update the documentation
  • Use design tokens: Use theme tokens instead of hardcoded values