Find UI Component

VerifiedSafe

Maps UI screenshots or visual descriptions to frontend component source files. Automatically activates before /scout when a screenshot is pasted with UI intent, extracting visual signals (text, layout, colors) and matching them against a component index with confidence scoring. Outputs a Mermaid diagram of component relationships to streamline navigation.

Sby Skills Guide Bot
DevelopmentIntermediate
1506/2/2026
Claude Code
#frontend#component-discovery#screenshot-analysis#source-mapping

Recommended for

Our review

This skill identifies source code components corresponding to UI screenshots or visual descriptions.

Strengths

  • Precise matching through multiple visual signals (text, BEM, Material, layout, color, data shape).
  • Automatic component indexing with incremental updates.
  • Integration upstream of /scout to narrow search scope.
  • Component dependency graph for architecture understanding.

Limitations

  • Requires the component index to be up-to-date.
  • Depends on screenshot quality (resolution, hidden elements).
  • Only works for projects already configured with the expected folder structure.
When to use it

Use this skill when a developer needs to quickly locate the source code of a UI element visible in a screenshot.

When not to use it

Do not use it for code modifications without a visual reference, or when the screenshot does not clearly show specific components.

Security analysis

Safe
Quality score90/100

The skill runs local Node.js scripts and uses Bash to generate a component index, then reads JSON and source files. It does not perform network operations, data exfiltration, or destructive actions. All tools are used within the user's own codebase for legitimate UI component discovery.

No concerns found

Examples

Find component from screenshot
I have a screenshot of a login button with a Material Design style. Find the component responsible for it.
Locate page component
Find the page component that renders the dashboard layout shown in this screenshot.
Refresh component index
Update the component index after recent edits to shared components.

name: find-component description: >- [Frontend] Find source code components from UI screenshots or visual descriptions. Runs BEFORE /scout when screenshot is pasted with UI intent. Triggers on: find component, find this component, where is this code, where is this page, which component, locate component, find the source, what component is this, refresh component index, update component index, sync component index. Maps visual signals to source files with confidence scoring and Mermaid component graph. allowed-tools: Read, Grep, Glob, Bash, Task

Anti-Hallucination Requirement

Read: .claude/skills/shared/anti-hallucination-protocol.md Read: references/confidence-scoring-guide.md

Every claimed match MUST have grep-verified evidence. HALT if confidence <85% — show candidates, never fabricate.

Workflow

Step 1: Load Component Index

# Full scan (rebuild entire index):
node .claude/skills/find-component/scripts/generate-component-index.cjs

# Incremental (only re-scan git-changed component files):
node .claude/skills/find-component/scripts/generate-component-index.cjs --git-changes

# Then read:
Read: docs/component-index.json

When to use which mode:

  • --git-changes — fast update after editing components (merges into existing index)
  • No flag — full rebuild when index missing, stale, or after major refactors
  • Fallback: live grep if index unavailable

Step 2: Extract Visual Signals from Screenshot

Read: references/visual-signal-extraction.md

Read the screenshot. Extract 6 signal types (text, BEM, Material, layout, color, data shape). List each signal with what you ACTUALLY see — never infer.

Step 3: Bottom-Up Component Search

Read: references/component-matching-protocol.md

  1. Reusable components first — match signals against platform-core/ and libs/ components
  2. Domain components — match against shared/components/
  3. Page component — find parent that composes matched children
  4. If no reusable match → search page templates directly

Step 4: Score Confidence

Read: references/confidence-scoring-guide.md

  • ≥85% (≥2 grep-verified signals) → report as confirmed match
  • <85% → show top candidates with per-signal breakdown, ask user

Step 5: Build Component Relationship Graph

Output Mermaid diagram:

graph TD
  A[PageComponent] --> B[ChildComponent1]
  A --> C[ChildComponent2]
  B --> D[SharedComponent]

Verify each edge by reading actual template HTML. Never infer from imports alone.

Step 6: Report

Output: matched components, file paths (TS/HTML/SCSS), confidence %, Mermaid graph, and any unresolved ambiguities.

Integration — Pre-Scout Activation (IMPORTANT)

When a screenshot is pasted with UI-related intent (fix, update, find, debug), this skill runs BEFORE /scout in any workflow. It narrows the search scope so scout is targeted.

Auto-activation priority: /find-component/scout → remaining workflow steps

Applies to: bugfix, feature, refactor, fix-ui, verification workflows. Output (matched file paths + component graph) feeds directly into scout/investigate steps.

Related skills