MCP Tool Definition Tester
NewLint an MCP tool definition and validate sample arguments against its inputSchema before you ship your server.
mcp tool testermcp inputschemamcp validatormodel context protocol tool
Read the guideShortcuts:⌘ KSearch?HelpD MDark modeG TAll tools
Continue with:
Frequently Asked Questions
What does it check?
Tool name rules, description quality, inputSchema validity and whether sample arguments satisfy the schema.
Is my data uploaded?
No. Everything runs locally in your browser.
Related Tools
SKILL.md Generator (Agent Skills)
NewGenerate a valid SKILL.md with YAML frontmatter for Claude Code, Copilot, Codex and other Agent Skills compatible agents.
SKILL.md Validator
NewValidate a SKILL.md file against the Agent Skills specification: frontmatter, name format, description length and body size.
AI Crawler robots.txt Builder
NewBuild a robots.txt that allows or blocks GPTBot, ClaudeBot, PerplexityBot, Google-Extended and other AI crawlers separately for training and search.