MCP stdio Server: One print() Broke 19% of My Tool Calls
This story is from 2026-09-28. It is preserved in the archive; the latest stories are on the live feed.
My MCP stdio server worked perfectly every time I tested it. Then I used it for a week from Claude Code and logged every call: 212 tool calls, 41 failures. That's 19%, from a server with six tools and no complicated logic. None of the 41 were bugs in my tools. Every one came from bytes landing on s…
Read the full story at DEV Community — AI ↗
Timeline · 1 report
- 2026-09-28 05:37 · DEV Community — AI
MCP stdio Server: One print() Broke 19% of My Tool Calls