# Phase 49 Summary

Status: implemented on `main`

## Goal

Rebuild `L2` knowledge growth, retrieval, staging, and compilation through real
graph behavior and service/runtime access paths.

## What Landed

- production `l2_compiler`, `l2_staging`, and `l2_hygiene` support modules
- real retrieval and activation behavior
- durable compiled/staging artifacts instead of schema-only closure

## Outcome

Phase `49` is complete.
The next archived phase is `50` `collaborator-memory-and-mode-learning`.
