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