Function recall 

pub fn recall(
    layout: &Layout,
    id: &str,
    depth: usize,
    excerpts: bool,
) -> Result<String>

The working set for one issue: the plan around it, the deeds its declared inputs produced, and what it has produced itself.

This is the layer between the task graph and the work: the tracker already records what a node waits on, so what an agent should open before starting is derivable rather than searchable. Nothing is ranked and nothing is embedded. A neighbourhood by resemblance is a different question and related answers it.

Errors

Returns an error if the corpus cannot be read, id is not in it, or the blocker graph cannot be built.