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>

sprint97_plan.md

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+# Sprint 97 Plan: Autonomous Patch Proposals with Human Approval Gates
+
+## Context
+
+The system can now propose concrete fixes for adapter gaps, but must remain
+human-approved before production adoption. Sprint 97 adds patch proposal flow.
+
+---
+
+## Goals
+
+1. Generate candidate adapter/policy patches from failure evidence
+2. Validate candidates in sandboxed certification loops
+3. Present diffs with semantic impact summaries
+4. Require explicit human approval for promotion
+
+---
+
+## Steps
+
+### Step 1199: Patch proposal schema and provenance model (12 tests)
+### Step 1200: Candidate generation engine from failure taxonomy (10 tests)
+### Step 1201: Sandbox validation runner for candidate patches (10 tests)
+### Step 1202: Semantic impact estimator for patch diffs (10 tests)
+### Step 1203: Candidate ranking and recommendation model (10 tests)
+### Step 1204: Approval workflow integration with governance ledger (8 tests)
+### Step 1205: `whetstone_generate_patch_candidates` MCP tool (8 tests)
+### Step 1206: `whetstone_validate_patch_candidate` MCP tool (8 tests)
+### Step 1207: Patch proposal review report artifact (8 tests)
+### Step 1208: Sprint 97 integration summary + regression (8 tests)
+
+---
+
+## Approval Rule
+
+- No autonomous patch is deployable without explicit approval record.