fiddler-mcp-setup

Installation
SKILL.md

Fiddler MCP Setup

Configure the Fiddler Everywhere MCP server so that agent tools can call Fiddler's traffic inspection, status, and session APIs.

Operating rules

  • Shell-first. MCP is not yet configured, so you cannot use MCP tools.
  • Sequential execution only. Follow steps strictly in order — do not run steps or scripts in parallel. Each step may depend on values produced by the previous one.
  • Execute provided scripts directly - do not modify or substitute the existing scripts.
  • On Windows - Detect opened terminal. Only if it is not powershell - wrap and run the scripts with: powershell.exe -Command 'script'. Use single quotes to wrap the script!
  • curl only for Steps 3 through 5. No other raw HTTP requests.
  • The MCP path is always /mcp. Do not attempt to discover or vary it.
  • Direct path checks only when detecting agent directories (e.g. test -d .vscode). Never use recursive globs (**) or rg/grep without a scoped directory argument.

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Installs
21
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Apr 20, 2026