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skill: add MCP bridge for host-side MCP servers#1324

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akasha-scheuermann wants to merge 1 commit intoqwibitai:mainfrom
akasha-scheuermann:skill/mcp-bridge
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skill: add MCP bridge for host-side MCP servers#1324
akasha-scheuermann wants to merge 1 commit intoqwibitai:mainfrom
akasha-scheuermann:skill/mcp-bridge

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@akasha-scheuermann
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Feature skill

Summary

Bridge host-side MCP servers (that can't run in Linux containers) into agent containers via IPC. Designed for macOS-native APIs like Apple Reminders/Calendar (EventKit) but works with any stdio MCP server.

• Generic JSON-RPC subprocess manager (src/mcp-bridge.ts)
• IPC-based request/response forwarding
• Dynamic tool discovery — no hardcoded tool definitions
• Env-based config: MCP_BRIDGE_SERVERS, MCP_BRIDGE_{NAME}_COMMAND/ARGS/ENV
• SKILL.md with /add-mcp-bridge install flow

Test plan

• Configure a host-side MCP server via .env
• Send a message and verify bridged tools appear
• Call a bridged tool and verify response passes through

Bridge host-side MCP servers (that can't run in Linux containers) into
agent containers via IPC files. Supports dynamic tool discovery — no
hardcoded tool definitions needed.

- src/mcp-bridge.ts: generic JSON-RPC subprocess manager with listTools()
- src/ipc.ts: MCP request/response forwarding via IPC
- src/index.ts: env-based server config (MCP_BRIDGE_SERVERS)
- src/container-runner.ts: IPC dirs + bridge manifest
- container ipc-mcp-stdio.ts: dynamic tool discovery at startup
- .claude/skills/add-mcp-bridge/SKILL.md: feature skill

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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