bound prompt image cache retention#28294
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Codex Review: Didn't find any major issues. Delightful! Reviewed commit: ℹ️ About Codex in GitHubYour team has set up Codex to review pull requests in this repo. Reviews are triggered when you
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fjord-oai
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Jun 15, 2026
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Why
The prompt image cache was bounded to 32 entries, but not by the size of those entries. A set of large encoded images could therefore retain substantially more memory than intended. Cache hits also cloned the full encoded payload.
What changed
Arc<[u8]>so cache hits do not deep-clone image payloadsValidation
just test -p codex-utils-image