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Ran 24 Jun 2026 12:16PM UTC

Files 419

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Committed 24 Jun 2026 12:13PM UTC coverage: 66.882% (+0.007%) from 66.875%

Job # 28097667709.1

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push

github

Committed by

web-flow

Commit Message

chore(tools): Handle stringified JSON arrays in `OneOrMany` (#789)

LLMs occasionally pass an array-typed argument as a JSON string that
contains the array literal (e.g. `"[\"a\", \"b\"]"`) instead of a proper
JSON array. The derived `Deserialize` implementation on `OneOrMany`
treated such a string as a single `One` element, causing tools that
accept multi-value inputs to silently receive a raw JSON string rather
than the intended list.

The custom `Deserialize` impl now detects this pattern: when the
incoming value is a string that successfully parses as `Vec<T>`, it is
treated as `Many` rather than `One`. Plain strings that are not valid
JSON arrays continue to deserialize as `One` unchanged.

Signed-off-by: Jean Mertz <git@jeanmertz.com>

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