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felixxia-oai
5971d42847
## Why Compaction replaces the model history window, but host-verified user answers may still be needed for the rest of the owning thread. ## What changed - Add bounded, model-invisible retained context for verified `request_user_input` answers. - Persist retained context in rollout events and compaction checkpoints, and restore it when a thread resumes. - Remove answers when their source turns are rolled back, and prevent parent-local answers from being inherited by child forks. ## Testing Add lifecycle coverage for deduplication and size limits, compaction and resume, rollback, rollout migration, and child forks. GitOrigin-RevId: c32900d3e8120a9899b71f0576683acd67a4b898
36 lines
1.4 KiB
Rust
36 lines
1.4 KiB
Rust
use codex_history::RetainedContext;
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use codex_protocol::models::ResponseItem;
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/// Read-only conversation-history snapshot supplied by the extension host.
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///
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/// Implementations should retain the host's existing snapshot storage rather than
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/// copying response payloads into an extension-owned collection.
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pub trait ConversationHistorySnapshot: Send + Sync {
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/// Returns the generation of the history captured by this snapshot.
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fn history_version(&self) -> u64;
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/// Host-owned revision captured with this snapshot. Advances on user messages and
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/// history resets, but stays unchanged for compaction and internal context.
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fn user_message_revision(&self) -> u64;
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/// Returns the snapshot's response items in conversation order.
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fn items(&self) -> Box<dyn Iterator<Item = &ResponseItem> + Send + '_>;
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/// Host-owned retained facts captured atomically with the parent model window.
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fn retained_context(&self) -> Option<&RetainedContext> {
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None
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}
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/// Original review evidence retained across parent compaction, in conversation order.
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/// Hosts without separate retention provide their current history.
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fn review_items(&self) -> Box<dyn Iterator<Item = &ResponseItem> + Send + '_> {
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self.items()
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}
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/// Changes whenever offsets into the retained review evidence become invalid.
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fn review_history_version(&self) -> u64 {
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self.history_version()
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}
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}
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