Struct MemoryStore 

pub struct MemoryStore { /* private fields */ }

Handle to a memory directory on disk.

Implementations

impl MemoryStore

pub fn open(dir: impl Into<PathBuf>) -> Result<Self>

Open a store rooted at dir. Creates the directory and a default MEMORY.md index if either is missing.

pub fn open_default() -> Result<Self>

Open the default store. Uses $MERLION_HOME/memory if set, else ~/.merlion/memory via dirs::home_dir.

pub fn dir(&self) -> &Path

Path to the on-disk directory.

pub fn list(&self) -> Result<Vec<MemoryRow>>

List memories declared in MEMORY.md.

pub fn read(&self, name: &str) -> Result<Memory>

Read a single memory by slug. Fails if the file is missing or malformed.

pub fn write(&self, m: &Memory) -> Result<()>

Write a memory to disk, creating or overwriting <name>.md and updating the index line in MEMORY.md.

• created_at is preserved if the file already exists.
• updated_at is always set to Utc::now().

pub fn delete(&self, name: &str) -> Result<()>

Delete a memory. Idempotent: missing files are not an error. The matching index line, if present, is stripped.

pub fn render_context_block(&self, max_chars: usize) -> Result<String>

Build a context block suitable for system-prompt injection. Returns an empty string when there are no memories. Stops adding lines once the cumulative size would exceed max_chars.