diff --git a/.agents/skills/commit/SKILL.md b/.agents/skills/commit/SKILL.md
index 886661d..c4956b0 100644
--- a/.agents/skills/commit/SKILL.md
+++ b/.agents/skills/commit/SKILL.md
@@ -18,7 +18,6 @@ description: Create a git commit following project conventions. Use this skill w
 - Prefer `-` bullet points in the body over prose paragraphs. Hanging indent for wrapped lines.
 - Body explains **why** (and, when non-obvious, **how** and **what effects** — benchmarks, side effects, follow-ups). Skip questions that don't apply. Never restate the diff.
 - Prefer bullet point
-- Never apppend "Co-Authored-By"
 
 ## Scope
 
diff --git a/.claude/settings.json b/.claude/settings.json
index f7f48a2..cd5372a 100644
--- a/.claude/settings.json
+++ b/.claude/settings.json
@@ -1,4 +1,8 @@
 {
+  "attribution": {
+    "commit": "",
+    "pr": ""
+  },
   "hooks": {
     "PostToolUse": [
       {