diff --git a/SESSION_LOG.md b/SESSION_LOG.md
index 6062c2a..933ac3e 100644
--- a/SESSION_LOG.md
+++ b/SESSION_LOG.md
@@ -18,6 +18,10 @@ Work completed:
   - `SESSION_START.md`
   - `OPEN_THREADS.md`
   - `SESSION_LOG.md`
+- Added explicit guardrail doc: `ANTI_DRIFT.md`.
+- Stabilized MCP routing and validated the Knowledge tool is working reliably.
+- Tagged `jester/zlh-agent` with annotated tag `v0.1.0-dev`.
+- Added `UPSTREAMS.md` to register canonical + execution repos and the Go agent repo.
 
 Notes:
 - MCP write operations are now functional from this environment.