diff --git a/.github/workflows/consumer-drift.yml b/.github/workflows/consumer-drift.yml
index 70ffabc..20d7759 100644
--- a/.github/workflows/consumer-drift.yml
+++ b/.github/workflows/consumer-drift.yml
@@ -42,6 +42,7 @@ jobs:
           - ptcna
           - pubskill-lib
           - epac
+          - stack
     steps:
       - name: Check out canonical skill-lib
         uses: actions/checkout@v7.0.1
diff --git a/ORG_DISTRIBUTION.md b/ORG_DISTRIBUTION.md
index bff3af6..658c6e7 100644
--- a/ORG_DISTRIBUTION.md
+++ b/ORG_DISTRIBUTION.md
@@ -80,6 +80,7 @@ detector (`.github/workflows/consumer-drift.yml`) checks:
 * `The-Interdependency/ptcna`
 * `The-Interdependency/pubskill-lib`
 * `The-Interdependency/epac`
+* `The-Interdependency/stack`
 
 **Targets not in the drift matrix** (do not vendor a top-level subset yet, so
 `--require-vendored` would fail them):
@@ -87,9 +88,6 @@ detector (`.github/workflows/consumer-drift.yml`) checks:
 * `The-Interdependency/a0ucns` — an aggregator that embeds whole copies of other
   repos rather than vendoring a top-level `.agents/skills/` subset. Its nested
   embeds carry their own copies; re-sync those from their source repos.
-* `The-Interdependency/stack` — receives `stack-update` in the paired stack PR;
-  add it to the active drift matrix after that vendored copy lands on `main` with
-  an exact skill-lib source-commit receipt.
 
 **Archived or superseded** — not active drift consumers: