diff --git a/.github/skills/setup-steward/SKILL.md b/.github/skills/setup-steward/SKILL.md
index 301803f277dc8..b0918219f1eb6 100644
--- a/.github/skills/setup-steward/SKILL.md
+++ b/.github/skills/setup-steward/SKILL.md
@@ -30,6 +30,7 @@ when_to_use: |
   maintenance: "upgrade steward", "verify steward setup",
   "check steward drift", "the snapshot is stale".
 argument-hint: "[adopt|upgrade|worktree-init|verify|override skill-name|unadopt]"
+capability: capability:setup
 license: Apache-2.0
 ---
 
diff --git a/.gitignore b/.gitignore
index b17d47beac099..33b2da3a8f8d2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -313,6 +313,12 @@ dev/registry/providers.json
 # detect drift.
 /.apache-steward.local.lock
 
+# Per-machine session-state file. Records adopter-local persistence
+# anchors written by steward skills (e.g. the session-history gist
+# URL written by pr-management-triage Step 6b, per
+# https://github.com/apache/airflow-steward/pull/343).
+/.apache-steward.session-state.json
+
 # Per-machine project-scope Claude Code settings (sandbox-allowlist
 # absolute paths written by sandbox-add-project-root.sh; per
 # https://github.com/apache/airflow-steward/issues/197).