ToolDelta
MCP CONTRACT REVIEW

An update shouldn’t surprise your agent.

Review changing parameters, response contracts, and declared behavior before you update a server.

A fictional workspace update: a required argument, a tighter limit, a wider response enum, and changed behavior hints.

Guided example · 4 breaking · 3 review · 3 info
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Prefer a terminal?

Zero runtime dependencies. Python 3.11+. MIT licensed.

python -m mcp_tooldelta demo

Clone the repository first. The CLI stays completely offline. The demo intentionally exits 1 because it contains changes requiring review.