🛠️
AB-020

MCP Tools List

🤖 Machine-Readable Pillar: Discovery Moderate effort Severity: high Est. cost: $10-50 Gap: documentation Fix: deterministic

What it means

Your MCP server responds to tool listing requests.

Why it matters

Agents need to see what tools your MCP server offers before they can use any of them.

Evidence expected

This rule is verified by:

http Source: Website content
✗

What's wrong

MCP server doesn't respond to tool listing. Agents don't know what's available.

✓

What's right

MCP server lists all available tools with descriptions.

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Related rules in Machine-Readable

Machine-Readable

This rule is also available as JSON: /rules/AB-020.json

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