rune-echoes

Provides the Smart Memory Lifecycle for Rune agents. Project-level memory stored in `.claude/echoes/` with 3-layer lifecycle (Etched/Inscribed/Traced), multi-factor pruning, and concurrent write safety. Should be loaded when agents need to read or write project memory, or when managing echo lifecycle. Agents learn across sessions without manual compound workflows. <example> Context: After a review, Ash persist patterns to echoes user: "Review found repeated N+1 query pattern" assistant: "Pattern persisted to .claude/echoes/reviewer/MEMORY.md as Inscribed entry" </example>