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fix: sanitize unpaired Unicode surrogates in recall and temporal storage - #68
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Tool outputs (bash, grep, read) can contain unpaired surrogates from binary
file content. These survive into the DB and break JSON serialization when
included in recall tool responses ('no low surrogate in string').
Fix: sanitize at ingestion (partsToText) and output (inline) using a regex
that replaces unpaired surrogates with U+FFFD.
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Summary
Fixes
The request body is not valid JSON: no low surrogate in stringerror when using the recall tool.partsToText()into the temporal_messages DB, and when the recall tool includes them in its response, JSON serialization for the LLM API fails.sanitizeSurrogates()insrc/markdown.tsreplaces unpaired surrogates (high without low, lone low) with U+FFFD. Applied at two layers:partsToText()insrc/temporal.ts— prevents bad data from entering the DBinline()insrc/markdown.ts— sanitizes any pre-existing bad data when formatting recall results