fix(session): resume snapshots across tool contract changes - #184
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andresilva wants to merge 1 commit into
Open
fix(session): resume snapshots across tool contract changes#184andresilva wants to merge 1 commit into
andresilva wants to merge 1 commit into
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Adding or changing tools could prevent older sessions from resuming because their stored request prefix no longer matched the current tool contract. This PR preserves exact resume when the contract still matches, retaining the existing cache behavior. When exact resume rejects a version 1 snapshot, tact removes only the stored request prefix and retries through nanocodex's history-resume path. The conversation history, instructions, workspace, and lineage are preserved while the session adopts the current tools.