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>

sprint131_plan.md

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+# Sprint 131 Plan: MCP Tool Surface Source-of-Truth and Manifest Sync
+
+## Context
+
+Recent sprints added many MCP tools, but tool visibility can diverge across source,
+build outputs, and runtime binaries. Sprint 131 makes tool-surface definition
+single-source and verifiable.
+
+---
+
+## Goals
+
+1. Define canonical tool manifest generation from MCP server source
+2. Eliminate drift between registered tools and runtime tool listings
+3. Add deterministic checks that fail builds on surface mismatch
+4. Expose machine-readable tool surface metadata for downstream pipelines
+
+---
+
+## Steps
+
+### Step 1549: Canonical MCP tool manifest model (10 tests)
+### Step 1550: Static registry scanner for `register*Tools` blocks (10 tests)
+### Step 1551: Runtime `tools/list` snapshot normalizer (10 tests)
+### Step 1552: Source-vs-runtime drift comparator model (10 tests)
+### Step 1553: `whetstone_export_tool_manifest` MCP tool (8 tests)
+### Step 1554: `whetstone_compare_tool_surfaces` MCP tool (8 tests)
+### Step 1555: Tool manifest build-gate integration (8 tests)
+### Step 1556: Tool-surface checksum packet model (8 tests)
+### Step 1557: Tool-surface diagnostics report artifact (8 tests)
+### Step 1558: Sprint 131 integration summary + regression (8 tests)
+
+---
+
+## Architecture Gate
+
+- Canonical manifest must be deterministic for identical source trees
+- Source/runtime comparisons must be order-insensitive but stable
+- Drift output must be structured, not free-text-only
+- Max 600 lines per header