diff --git a/workplans/ACTIVITY-WP-0016-llm-output-robustness-trust-boundary.md b/workplans/ACTIVITY-WP-0016-llm-output-robustness-trust-boundary.md
index 67dc056..ded096f 100644
--- a/workplans/ACTIVITY-WP-0016-llm-output-robustness-trust-boundary.md
+++ b/workplans/ACTIVITY-WP-0016-llm-output-robustness-trust-boundary.md
@@ -4,7 +4,7 @@ type: workplan
 title: "LLM Output Robustness & The Producer Trust Boundary"
 domain: custodian
 repo: activity-core
-status: active
+status: finished
 owner: codex
 topic_slug: custodian
 created: "2026-06-26"