skip redundant synthesis after email actions

tests/test_email_fact_lookup_completion.py

@@ -4,6 +4,7 @@ from mcp_servers.email_server import _extract_text as mcp_extract_text
 from routes.email_helpers import _extract_text as route_extract_text
 from src.agent_loop import (
     _email_fact_lookup_requested,
+    _email_lookup_needs_post_synthesis,
     _email_lookup_request_from_messages,
     _email_read_evidence_from_tool_output,
 )
@@ -45,6 +46,20 @@ def test_email_fact_lookup_does_not_capture_explicit_read_request():
     assert not _email_fact_lookup_requested("Read the email to me")
 
 
+def test_successful_draft_suppresses_redundant_email_lookup_synthesis():
+    events = [
+        {"tool": "mcp__email__read_email", "exit_code": 0, "output": "Price: $42"},
+        {"tool": "mcp__email__draft_email", "exit_code": 0, "output": "Draft created"},
+    ]
+
+    assert not _email_lookup_needs_post_synthesis(
+        "Read the bid, determine the winner, and draft a recommendation", events
+    )
+    assert _email_lookup_needs_post_synthesis(
+        "What price was quoted in the email?", events[:1]
+    )
+
+
 def test_email_lookup_evidence_strips_html_and_is_bounded():
     raw = (
         "**Subject:** Property settlement\n"