WIP: stage all uncommitted work — sprints 46-221, graduation headers, specialist fleet, test steps 909-1988

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

sprint89_plan.md

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+# Sprint 89 Plan: Meta-Evaluation and Program Benchmarking
+
+## Context
+
+A mature program needs periodic meta-evaluation against external baselines and
+internal objectives. Sprint 89 adds program-level benchmarking.
+
+---
+
+## Goals
+
+1. Define program KPIs for quality, cost, speed, and trust
+2. Benchmark program performance over time and across teams
+3. Detect systemic regressions not visible at pair level
+4. Feed meta-evaluation results into roadmap planning
+
+---
+
+## Steps
+
+### Step 1119: Program KPI schema and target model (12 tests)
+### Step 1120: Historical KPI aggregator (10 tests)
+### Step 1121: Cross-team benchmark comparator (10 tests)
+### Step 1122: Systemic regression detector (10 tests)
+### Step 1123: KPI anomaly triage model (10 tests)
+### Step 1124: Meta-evaluation recommendation generator (8 tests)
+### Step 1125: `whetstone_get_program_kpis` MCP tool (8 tests)
+### Step 1126: `whetstone_run_meta_evaluation` MCP tool (8 tests)
+### Step 1127: Program benchmarking report bundle (8 tests)
+### Step 1128: Sprint 89 integration summary + regression (8 tests)
+
+---
+
+## Governance Rule
+
+- Roadmap adjustments must reference KPI evidence from latest meta-evaluation.