Implement weekly coding retro schedule

tests/test_integration_event_bridge.py

@@ -25,6 +25,7 @@ from activity_core.rules.models import TaskRef, TaskSpec
 
 _DEFINITIONS_DIR = Path(__file__).parent.parent / "activity-definitions"
 _SBOM_DEF_PATH = _DEFINITIONS_DIR / "weekly-sbom-staleness.md"
+_CODING_RETRO_DEF_PATH = _DEFINITIONS_DIR / "weekly-coding-retro.md"
 
 
 # ── Helpers ───────────────────────────────────────────────────────────────────
@@ -95,6 +96,69 @@ def test_sbom_definition_parses_correctly():
     assert defn.rules[0]["id"] == "flag-stale-sbom"
 
 
+def test_coding_retro_definition_parses_disabled_until_verified():
+    defn = parse_file(_CODING_RETRO_DEF_PATH)
+
+    assert defn.id == "weekly-coding-retro"
+    assert defn.enabled is False
+    assert defn.trigger_config["trigger_type"] == "cron"
+    assert defn.trigger_config["cron_expression"] == "0 19 * * 6"
+    assert defn.trigger_config["timezone"] == "Europe/Berlin"
+    assert defn.context_sources == [
+        {
+            "type": "state-hub",
+            "query": "coding_retro",
+            "params": {"window_days": 7, "limit": 100},
+            "bind_to": "context.retro",
+        }
+    ]
+    assert len(defn.rules) == 1
+    assert defn.rules[0]["id"] == "propose-weekly-improvements"
+
+
+def test_coding_retro_rule_emits_one_task_per_positive_suggestion():
+    defn = parse_file(_CODING_RETRO_DEF_PATH)
+    rule = defn.rules[0]
+    context = {
+        "retro": {
+            "suggestions": [
+                {
+                    "repo": "activity-core",
+                    "title": "Harden coding retro smoke gates",
+                    "recommendation": "Dry-run with fixture and live hub evidence.",
+                    "priority": "high",
+                    "score": 8.5,
+                },
+                {
+                    "repo": "quiet-repo",
+                    "title": "Do not emit zero-score suggestion",
+                    "recommendation": "This should stay quiet.",
+                    "priority": "low",
+                    "score": 0,
+                },
+            ]
+        }
+    }
+
+    specs = expand_rule_actions([rule], _EmptyEvent(), context)
+
+    assert specs == [
+        {
+            "title": "Harden coding retro smoke gates",
+            "description": "Dry-run with fixture and live hub evidence.",
+            "target_repo": "activity-core",
+            "priority": "high",
+            "labels": ["coding-retro", "improvement", "automated"],
+            "due_in_days": None,
+            "source_type": "rule",
+            "source_id": "propose-weekly-improvements",
+            "triggering_event_id": "",
+            "activity_definition_id": "",
+            "condition": "context.s.score > 0",
+        }
+    ]
+
+
 def test_pipeline_emits_one_task_for_stale_repo_only():
     """Stale repo (45 days) matches; fresh repo (10 days) does not."""
     defn = parse_file(_SBOM_DEF_PATH)