diff --git a/AGENTS.md b/AGENTS.md
index 88b3ee5..9bc747e 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -11,6 +11,16 @@ These rules apply to all AI agents working on this repository (Codex, Claude, Co
 - **Never commit secrets** (.env, API keys, tokens, credentials).
 - **Never skip hooks** (`--no-verify`).
 
+## Bugfix Verification
+
+Every bugfix **must** include a regression test that reproduces the **exact user-reported symptom**, not just a related scenario.
+
+1. **Reproduce first:** Before writing the fix, write a test that fails with the exact symptom the user described. "User does X, expects Y, gets Z" → the test must assert Y and currently produce Z.
+2. **Fix, then re-run:** Apply the fix, confirm the test passes.
+3. **Green suite is necessary, not sufficient:** All existing tests passing does not prove the reported bug is fixed. The regression test is what proves it.
+
+> **Why this rule exists:** v2.7.3 shipped a doctor fix that used `all_entries_unfiltered()` instead of `all_entries()`. All tests were green, but the actual bug (phantom stale tasks invisible to `palaia list`) was not fixed because no test reproduced the specific scenario (private scope + different agent).
+
 ## Pull Requests
 
 - Keep PR titles short (<70 chars), use conventional prefix.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5fc44d1..880e64f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 ### Fixed
 - **ContextEngine: `ownsCompaction: true`** — palaia now declares compaction ownership, preventing OpenClaw's built-in Pi auto-compaction from running in parallel with `palaia gc`. Without this flag, both compaction mechanisms could interfere with each other, leading to unpredictable context truncation.
-- **Doctor phantom stale-tasks warning** — `_check_stale_unassigned_tasks` now reads entries through `Store.all_entries_unfiltered()` instead of scanning `.md` files directly. The previous approach could report entries invisible to `palaia list` (e.g. entries with empty/invalid scope), causing the doctor to warn about tasks that the user cannot see or act on.
+- **Doctor phantom stale-tasks warning** — `_check_stale_unassigned_tasks` now uses `Store.all_entries()` with agent scope filtering (not `all_entries_unfiltered()`). The doctor only reports entries that `palaia list` can actually see — private-scoped entries from other agents are no longer counted as phantom warnings.
 - **Scope: empty/unknown scope no longer hides entries** — `can_access()` now treats empty or unrecognized scope values as `"team"` instead of returning `False`. Entries with missing or malformed scope are no longer silently invisible.
 
 ---
diff --git a/palaia/doctor/checks.py b/palaia/doctor/checks.py
index efca47f..a4d1384 100644
--- a/palaia/doctor/checks.py
+++ b/palaia/doctor/checks.py
@@ -1864,9 +1864,9 @@ def _check_claude_code_config(palaia_root: Path | None) -> dict[str, Any]:
 def _check_stale_unassigned_tasks(palaia_root: Path | None) -> dict[str, Any]:
     """Check for auto-captured tasks without assignee/due_date older than 7 days.
 
-    Uses Store.all_entries_unfiltered() to ensure consistent entry discovery
-    with `palaia list`. Previous implementation scanned .md files directly,
-    which could report entries invisible to the user (scope filtering mismatch).
+    Uses Store.all_entries() with agent scope filtering to ensure the doctor
+    only reports entries visible to `palaia list`. Entries hidden by scope
+    (e.g. private entries from a different agent) are excluded.
     """
     if palaia_root is None:
         return {
@@ -1878,6 +1878,7 @@ def _check_stale_unassigned_tasks(palaia_root: Path | None) -> dict[str, Any]:
 
     from datetime import datetime, timezone
 
+    from palaia.config import resolve_agent as resolve_agent_identity
     from palaia.store import Store
 
     now = datetime.now(tz=timezone.utc)
@@ -1885,7 +1886,8 @@ def _check_stale_unassigned_tasks(palaia_root: Path | None) -> dict[str, Any]:
 
     try:
         store = Store(palaia_root)
-        all_entries = store.all_entries_unfiltered(include_cold=False)
+        agent = resolve_agent_identity(palaia_root)
+        all_entries = store.all_entries(include_cold=False, agent=agent)
     except Exception:
         return {
             "name": "stale_unassigned_tasks",
diff --git a/tests/test_doctor.py b/tests/test_doctor.py
index db49d14..ecaedb1 100644
--- a/tests/test_doctor.py
+++ b/tests/test_doctor.py
@@ -438,6 +438,36 @@ def test_ignores_tasks_with_assignee(self, palaia_root):
         result = _check_stale_unassigned_tasks(palaia_root)
         assert result["status"] == "ok"
 
+    def test_ignores_private_tasks_from_other_agent(self, palaia_root, monkeypatch):
+        """Regression: doctor must not report private-scoped entries from a
+        different agent.  This was the exact user-reported bug — doctor showed
+        4 stale tasks that ``palaia list`` didn't because scope filtering was
+        bypassed (all_entries_unfiltered instead of all_entries).
+        """
+        from datetime import datetime, timedelta, timezone
+
+        from palaia.doctor import _check_stale_unassigned_tasks
+
+        old_date = (datetime.now(tz=timezone.utc) - timedelta(days=10)).isoformat()
+        entry_content = f"""---
+id: private-other-agent-001
+type: task
+tags: auto-capture,commitment
+created: {old_date}
+scope: private
+agent: agent-a
+title: Task only visible to agent-a
+---
+This task belongs to agent-a and must be invisible to agent-b."""
+        (palaia_root / "hot" / "private-other-agent-001.md").write_text(entry_content)
+
+        # Doctor runs as agent-b → private entry from agent-a must be invisible
+        monkeypatch.setenv("PALAIA_AGENT", "agent-b")
+        result = _check_stale_unassigned_tasks(palaia_root)
+        assert result["status"] == "ok", (
+            f"Doctor reported private entry from agent-a while running as agent-b: {result}"
+        )
+
     def test_ignores_manual_tasks(self, palaia_root):
         from datetime import datetime, timedelta, timezone