Dev slams OpenAI and Claude for hallucinating WebMCP tool formats

HankYeomans · x · 2026-10-17

A developer argues that WebMCP itself is great, but OpenAI and Claude handle it poorly: they hallucinate older formats and don't always see the tools, making results hit-or-miss. Without fixes, the two models risk sinking the spec, leaving it useful only for personal agents.

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