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+# Changelog
+
+All notable changes to this project are documented in this file.
+
+Format based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
+Versioning follows [Semantic Versioning](https://semver.org/).
+
+## [0.1.0-design] — 2026-07-27
+
+### Added
+
+- Approved repository structure (design pack + operator docs + code scaffolds).
+- Design SSOT under `design/`: DESIGN_PLAN, use cases, scenarios, decisions, planes, det-vs-inf, MCP integrations, updates lifecycle, platform research notes.
+- Operator runbook outlines under `docs/`.
+- Scaffold directories (README only) for policy, agents, skills, scripts, services, deploy, tests, etc.
+
+### Notes
+
+- No product implementation until explicit **build** / **implement**.