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Professional notes by Craig Johnston
long-form, short-form, working drafts · since 2008
VOL. XIX · MMXXVI
126 NOTES IN PRINT

Tag: Stdio

1 NOTE
LXXXVIII

Transport I, stdio: Two Pipes and a Subprocess

The simplest MCP transport, built by hand on both sides with no SDK, plus the stderr rule that silently breaks servers
MCPGOPROTOCOLSTDIO
2026-05-09