Module memory 

Long-term, cross-session memory.

Short-term context lives in crate::Context; the crate::Compactor keeps it within budget within a single run. Long-term memory is what survives across runs — the dataset that turns a generic assistant into a personalised one. Per Harrison Chase / Sarah Wooders: memory is the harness. To keep the framework’s “open harness” promise the memory layer must be:

• owned by the operator (no provider-side stateful APIs),
• transferable (a swap to a different model must not lose memory),
• inspectable (plain on-disk format, no opaque tokens).

This module ships the trait + types. Concrete backends live in [harness_context::FileMemory] (JSONL) and downstream crates.

Wiring

• A MemoryGuide from harness-rs-loop calls Memory::recall at the start of every session and injects the top-K matches into the system prompt.
• A MemoryWriter hook captures the final assistant text on Event::TaskCompleted and calls Memory::write.
• Tools may use the same Arc<dyn Memory> to commit explicit facts mid-run.

Structs

MemoryEntry

One persisted memory record.

Enums

MemoryError

Traits

Memory

The open-memory primitive.