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brendanjryan
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Summary
Fixes two MCP stdio regressions in the CLI:
mppx --mcpexited immediately because the bin wrapper calledprocess.exit(0)aftercli.serve()resolved.nulland leaked command output onto stdout because command handlers printed results instead of returning structured data throughincur.Changes
cli.serve()without forcingprocess.exit(0).signfrom reading MCP transport stdin when no challenge argument is provided.src/bin.ts --mcp, initialize JSON-RPC, list tools and schemas, and call tools across success and error scenarios without stdout pollution.