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AB-069

WebMCP Browser Tools

🌐 WebMCP Pillar: Discovery Complex implementation Severity: medium Est. cost: $100+ Gap: documentation Fix: deterministic

What it means

Your site exposes browser-side tools that agents can call through WebMCP.

Why it matters

Browser-side tools let agents perform actions that require a browser context, like rendering or interaction.

Evidence expected

This rule is verified by:

http Source: Runtime probe
✗

What's wrong

No browser-side tools. Agents are limited to server-side API calls.

✓

What's right

Browser-side tools enable agents to perform rich interactions.

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Related rules in WebMCP

🌐 WebMCP Manifest
📝 WebMCP Form Annotations
🌐 MCP namespace-based tool isolation
🌐 Well-known MCP descriptor
🌐 MCP tools and REST endpoints parity
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Machine-Readable

This rule is also available as JSON: /rules/AB-069.json

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