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An MCP JSON-recovery tool that invents 0 of 25 unrecoverable LLM outputs — and refuses 55 it could fix

This story is from 2026-08-24. It is preserved in the archive; the latest stories are on the live feed.

When a model is asked for JSON and returns prose, fences, or a half-cut object, most repair libraries pick something and hand it back. On the 25 cases in MALFORMED-300 where the honest answer is "no value exists", jsonshim-mcp invents 0 of them . It also refuses 55 recoverable documents it could ha…

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  1. 2026-08-24 23:50 · DEV Community — AI
    An MCP JSON-recovery tool that invents 0 of 25 unrecoverable LLM outputs — and refuses 55 it could fix

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