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mcp-verify

Verify MCP tools against a running server via inspector and JSON-RPC calls.

5|1|Updated Dec 14, 2025
Search Tags:#testing#mcp#verify#json-rpc#inspector#tool-invocation
One-click install
npx skills add https://github.com/joshsmithxrm/power-platform-developer-suite --skill mcp-verify
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mcp-verify
Source: https://github.com/joshsmithxrm/power-platform-developer-suite/tree/main/.claude/skills/mcp-verify
Command: npx skills add https://github.com/joshsmithxrm/power-platform-developer-suite --skill mcp-verify

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Verifying MCP tool behavior and tool interactions can be error-prone when using ad-hoc methods; this skill provides a structured approach to inspect, invoke, and validate MCP server tools.

Core Features & Use Cases

  • MCP Inspector offers a web UI for interactive tool testing.
  • Direct Tool Invocation demonstrates programmatic tool calls via the MCP protocol.
  • Session Options enable locking to specific profiles and environments for reliable reproduction.
  • Response Validation ensures outputs conform to expected formats and error messages are meaningful.
  • Common Failure Modes helps diagnose issues like missing active profiles or forbidden environments.

Quick Start

Run the MCP Inspector against the server, then invoke a tool with the provided JSON-RPC commands.

Frequently Asked Questions about mcp-verify

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I verify MCP tool behavior against a running server?▼

To verify MCP tools, run the MCP Inspector against your running MCP server and invoke tools using JSON-RPC commands. This structured approach replaces ad-hoc testing by validating behavior across both interactive inspector sessions and direct programmatic tool calls.

What is the best way to test JSON-RPC tool calls in a guarded environment?▼

Testing JSON-RPC tool calls in a guarded environment requires using session options to lock to specific profiles. This session locking ensures reliable reproduction of tool invocations and validates that tooling correctly supports guarded environments.

How do I validate MCP server responses and ensure errors are descriptive?▼

Validating MCP server responses involves checking that outputs conform to expected formats and error messages are meaningful. Response validation ensures well-formed outputs by testing behavior across both interactive inspector sessions and direct programmatic tool invocations.

Why does my MCP Inspector tool invocation fail with missing active profiles?▼

MCP Inspector tool invocation fails with missing active profiles because session options require a locked profile for reliable reproduction. This common failure mode occurs when tooling lacks the necessary environment configuration to execute guarded JSON-RPC tool calls.

Can I use direct tool invocation instead of the MCP Inspector web UI for testing?▼

Yes, direct tool invocation demonstrates programmatic tool calls via the MCP protocol as an alternative to the MCP Inspector web UI. Both methods validate tool behavior, but direct invocation tests JSON-RPC calls without relying on interactive web UI sessions.

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