Gadoes is teaching Mike to plug into outside tools

The fork now has the plumbing to let Mike reach external tools and data sources without falling over when one goes dark.

integrationinfrastructure

Gadoes has built the connective tissue for the Model Context Protocol - an emerging standard that lets an AI assistant talk to outside tools and data sources rather than living only inside its own walls. The work handles the unglamorous-but-essential parts: opening a connection to an external server the first time it's needed, keeping it warm for a stretch so repeat requests are fast, quietly closing it after it sits idle, and reconnecting if it drops unexpectedly.

The detail worth flagging is what happens when something isn't available. Instead of crashing the conversation, an unreachable tool returns a clean "source unavailable" signal and Mike carries on. That graceful-degradation choice is the difference between a demo and something you'd trust in front of a client.

So what If you want Mike wired into your own systems and tools, this is the groundwork that makes those connections reliable - worth a look on GitHub.

View this fork on GitHub →

Spotted something wrong? Or know the PR text has fresher detail than the writeup above?

Commits in this thread

6 commits from Gadoes/dispumike, oldest first. Source extracted verbatim from the harvested git log.

SHA	Subject	Author	Date
`735c9261`	Chunk 1: MCP Host Plumbing (fix test suite)	Gadoes	2026-05-02	↗ GitHub
commit body - Fixed StdioClientTransport mock to use class constructor (arrow fn can't be used with `new`) - Fixed callTool() to catch spawn errors and return structured source_unavailable error - Fixed afterEach to use resetAllMocks() instead of clearAllMocks() to prevent mockImplementationOnce queue leakage between tests - Fixed dispose() test to clear mockClose call count before the assertion All 10 Chunk 1 tests pass. Acceptance criteria: [x] listTools() returns at least one tool from a running MCP server [x] No spawn occurs on second warm call within idle TTL [x] Child process exit triggers reconnect within 1s (fake timers) [x] 3 consecutive spawn failures → permanently_failed state [x] dispose() kills all spawned processes (spy verification) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
`8af29ffc`	Chunk 1: MCP host plumbing - McpClientManager lazy-spawn singleton	Gadoes	2026-05-02	↗ GitHub
commit body - Added spike-mcp-host.ts POC: validates StdioClientTransport + server-filesystem stdio server (14 tools, listTools + callTool both pass) - Implemented McpClientManager singleton with lazy-spawn, 15-min idle TTL, per-server request queue (max 10), auto-reconnect with exponential backoff, permanently_failed state after 3 failures, and dispose() for SIGTERM/SIGINT cleanup - Added types.ts with McpServerConfig, McpToolDefinition, McpServerState, McpCallResult, McpHealthResult - Installed @modelcontextprotocol/server-filesystem, vitest, @vitest/coverage-v8 - All 10 Vitest tests pass (cold-start, warm reuse, idle disposal, reconnect, permanently_failed, queue throttle, dispose, health check) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
`da93e2e5`	Chunk 2: Mock MCP Server for Tests	Gadoes	2026-05-02	↗ GitHub
commit body - Created backend/src/__mocks__/mockMcpServer.ts - in-process MCP server using @modelcontextprotocol/sdk's InMemoryTransport + Server - Pre-defined tool set: search_cases, retrieve_case - respondWith(toolName, response) for scripted responses - createMockMcpServer() returns started server + connected McpClientManager - 5 unit tests: scripted responses, listTools, respondWith overrides, default responses, unknown tool error Acceptance criteria: [x] createMockMcpServer() usable in any Vitest test file without spawning child processes [x] Returns deterministic responses per respondWith() config Tests: 15 pass (10 Chunk 1 + 5 Chunk 2) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
`f4c51b40`	Merge Chunk 2: Mock MCP Server for Tests	Gadoes	2026-05-02	↗ GitHub
`4f4fdc5d`	Chunk 3: Tool Registration in Agent Loop	Gadoes	2026-05-02	↗ GitHub
commit body - Added isMcpTool(), parseMcpToolName(), mcpToolToOpenAI() helpers in chatTools.ts - Extended runToolCalls() with optional mcpManager param; detects mcp__ prefix and dispatches to McpClientManager.callTool() - Emits mcp_tool_call_start SSE event per MCP tool call - Extended runLLMStream() with mcpServerTools, openCircuitSources, mcpManager params - MCP tools appended to activeTools after existing TOOLS and WORKFLOW_TOOLS - Open-circuit sources excluded from activeTools; unavailability note appended to system prompt (spec Section 2.7) - Active MCP source names and tools listed in system prompt Acceptance criteria: [x] LLM emits MCP tool call by prefixed name (mcp__{server}__{tool}) [x] runToolCalls() dispatches to McpClientManager [x] Tool result returned in { role: "tool", tool_call_id, content } format [x] mcp_tool_call_start SSE event emitted with correct fields [x] Open-circuit source tools absent from activeTools Tests: 24 pass (10+5+9) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
`3091a892`	Merge Chunk 3: Tool Registration in Agent Loop	Gadoes	2026-05-02	↗ GitHub

Capture this thread into my fork

Download a single Markdown prompt that tells Claude how to port every commit above into your working tree — adapting paths and structure to match your repo. Run it via claude -p < capture-thread-26.md from inside the repo you want the changes in.

⬇ Download capture-thread-26.md