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Debugging an MCP Server with MCP Inspector

Learned while setting up the MCP Inspector to debug a Go-based MCP server using the 2026-07-28 Streamable HTTP transport (stateless mode).

Context

• MCP server: Go service using github.com/modelcontextprotocol/go-sdk/mcp, mounted at POST /mcp
• Transport: Streamable HTTP (stateless, JSONResponse: true)
• Protocol era: Modern (2026-07-28) — requires _meta.io.modelcontextprotocol/protocolVersion in every request body and Mcp-Method HTTP headers
• Inspector version: @modelcontextprotocol/inspector@2.0.0

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Code Quality

• Read files in full before making wide-ranging changes, before editing files you have not already fully inspected, and when the user asks you to investigate or audit something. Do not rely only on search snippets for broad changes.
• No any types unless absolutely necessary
• Check node_modules for external API type definitions instead of guessing
• NEVER use inline imports - no await import("./foo.js"), no import("pkg").Type in type positions, no dynamic imports for types. Always use standard top-level imports.
• NEVER remove or downgrade code to fix type errors from outdated dependencies; upgrade the dependency instead
• Always ask before removing functionality or code that appears to be intentional
• Do not preserve backward compatibility unless the user explicitly asks for it

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{
  "providers": {
    "tokenrouter": {
      "baseUrl": "https://api.tokenrouter.com/v1",
      "apiKey": "$TOKENROUTER_API_KEY",
      "api": "openai-completions",
      "compat": {
        "supportsDeveloperRole": false
      },
      "models": [

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{
  "providers": {
    "cpa-ant": {
      "baseUrl": "http://127.0.0.1:8317",
      "apiKey": "CLI_PROXY_API_KEY",
      "api": "anthropic-messages",
      "models": [
        {
          "id": "claude-haiku-4.5",
          "name": "Claude Haiku 4.5",

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// If you'd like to override the default keybindings completely, be sure to change "keybinds" to "keybinds clear-defaults=true"
keybinds {
    normal {
        // uncomment this and adjust key if using copy_on_select=false
        // bind "Alt c" { Copy; }
    }
    locked {
        bind "Ctrl g" { SwitchToMode "Normal"; }
    }
    resize {

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{
  "providers": {
    "cpa": {
      "baseUrl": "http://127.0.0.1:8317/v1",
      "apiKey": "CLI_PROXY_API_KEY",
      "api": "openai-completions",
      "models": [
        {
          "id": "step-3.5-flash",
          "name": "StepFun Step 3.5 Flash (Free)",

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Memos REST API Documentation

Comprehensive guide for interacting with the Memos REST API
Generated from usememos/dotcom and usememos/memos

---

Table of Contents

• Overview

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[Container]
Image=docker.io/amir20/dozzle:v8.4.3
PublishPort=18080:8080
Volume=/run/user/1000/podman/podman.sock:/var/run/docker.sock
Environment=DOZZLE_REMOTE_AGENT=

[Service]
Restart=always

[Install]

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forward:
  tilt:
    source: "tcp:localhost:10350"
    destination: "ser4:tcp:localhost:10350"
  pathfinder:
    source: "tcp:localhost:3000"
    destination: "ser4:tcp:localhost:3000"
  elastic:
    source: "tcp:localhost:9200"
    destination: "ser4:tcp:localhost:9200"

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{
    "workbench.colorTheme": "Default Light Modern",
    "remote.SSH.remotePlatform": {
        "ser4": "linux"
    },
    "vim.normalModeKeyBindingsNonRecursive": [
        {
            "before": [
                "<C-p>"
            ],