diff --git a/cc-headless/.claude/settings.json b/cc-headless/.claude/settings.json
index bad5878..d14bdbf 100644
--- a/cc-headless/.claude/settings.json
+++ b/cc-headless/.claude/settings.json
@@ -1,12 +1,12 @@
 {
   "model": "opus",
-  "includeCoAuthoredBy": false,
-  "permissions": {},
+  "attribution": {
+    "commit": "",
+    "pr": "",
+    "sessionUrl": false
+  },
   "env": {
-    "DISABLE_TELEMETRY": "1",
-    "DISABLE_ERROR_REPORTING": "1",
-    "DISABLE_BUG_COMMAND": "1",
-    "CLAUDE_CODE_DISABLE_FEEDBACK_SURVEY": "1",
+    "CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC": "1",
     "CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS": "1",
     "CLAUDE_CODE_MAX_OUTPUT_TOKENS": "64000"
   },
diff --git a/cc-headless/README.md b/cc-headless/README.md
index 4d79d92..244b82e 100644
--- a/cc-headless/README.md
+++ b/cc-headless/README.md
@@ -8,8 +8,8 @@ Configuration for running Claude Code with API keys instead of the default subsc
 
 - **Custom statusline** showing context usage, model, session count, directory, git info, and line changes
 - **Model preset** set to Opus
-- **No co-authored-by** in commits (`includeCoAuthoredBy: false`)
-- **Telemetry disabled** via `CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC`
+- **No Claude attribution** in commits, PRs, or session links (`attribution` set to empty; replaces the deprecated `includeCoAuthoredBy`)
+- **Nonessential traffic disabled** — the single `CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC` variable covers telemetry, error reporting, the `/feedback` command, feedback surveys, and the autoupdater
 - **Onboarding bypassed** so Claude Code starts immediately
 
 ## Setup