MCP Protocol Spec Checker FAQs

Question 1

What are the three verification approaches used?

Accepted Answer

The skill uses Narya Types for syntax validation, Agent-o-rama Evaluators for coordination logic (GF(3)), and Unison Effects for handling algebraic action traces, cross-validating results for 100% confidence.

Question 2

Can this skill generate fixes for protocol errors?

Accepted Answer

Yes, when a predicate fails, the skill can generate a minimal counterexample and suggest a specific JSON fix to bring the message into compliance with the target MCP version.

Question 3

Which MCP versions does this skill support?

Accepted Answer

It is specifically optimized for comparing the June 2024 (0618) and November 2025 (1125) specifications, but its underlying Narya logic is extensible to other version deltas.

Question 4

How does semantic diffing differ from standard file diffing?

Accepted Answer

Instead of comparing text line-by-line, semantic diffing evaluates the underlying predicates and requirements of the protocol, identifying functional changes that actually impact implementation logic.

Question 5

What is the primary purpose of mcp-spec-checker?

Accepted Answer

It is a specialized tool for Claude Code that performs semantic analysis and verification of Model Context Protocol (MCP) specifications to ensure version compatibility and logical correctness.

MCP Protocol Spec Checker

Key Features

Use Cases

MCP Protocol Spec Checker

Key Features

Use Cases