[kimi] Split scorecard_service.py into focused modules (#1406) (#1461)

src/dashboard/services/scorecard/calculators.py

@@ -0,0 +1,61 @@
+"""Score calculation and pattern detection algorithms."""
+
+from __future__ import annotations
+
+from dashboard.services.scorecard.types import AgentMetrics
+
+
+def calculate_pr_merge_rate(prs_opened: int, prs_merged: int) -> float:
+    """Calculate PR merge rate.
+
+    Args:
+        prs_opened: Number of PRs opened
+        prs_merged: Number of PRs merged
+
+    Returns:
+        Merge rate between 0.0 and 1.0
+    """
+    if prs_opened == 0:
+        return 0.0
+    return prs_merged / prs_opened
+
+
+def detect_patterns(metrics: AgentMetrics) -> list[str]:
+    """Detect interesting patterns in agent behavior.
+
+    Args:
+        metrics: The agent's metrics
+
+    Returns:
+        List of pattern descriptions
+    """
+    patterns: list[str] = []
+
+    pr_opened = len(metrics.prs_opened)
+    merge_rate = metrics.pr_merge_rate
+
+    # Merge rate patterns
+    if pr_opened >= 3:
+        if merge_rate >= 0.8:
+            patterns.append("High merge rate with few failures — code quality focus.")
+        elif merge_rate <= 0.3:
+            patterns.append("Lots of noisy PRs, low merge rate — may need review support.")
+
+    # Activity patterns
+    if metrics.commits > 10 and pr_opened == 0:
+        patterns.append("High commit volume without PRs — working directly on main?")
+
+    if len(metrics.issues_touched) > 5 and metrics.comments == 0:
+        patterns.append("Touching many issues but low comment volume — silent worker.")
+
+    if metrics.comments > len(metrics.issues_touched) * 2:
+        patterns.append("Highly communicative — lots of discussion relative to work items.")
+
+    # Token patterns
+    net_tokens = metrics.tokens_earned - metrics.tokens_spent
+    if net_tokens > 100:
+        patterns.append("Strong token accumulation — high value delivery.")
+    elif net_tokens < -50:
+        patterns.append("High token spend — may be in experimentation phase.")
+
+    return patterns