docs: clarify license scope in README

AGENTS.md

@@ -26,6 +26,56 @@ For committing, tagging, and branching, load the `git` skill with
 Dependencies are managed via custom `Find*.cmake` scripts in `deps/`.
 See `/skill:cmake` for adding new dependencies.
 
+## Build
+
+Configure:
+
+```sh
+cmake -S . -B build -G Ninja
+```
+
+Build:
+
+```sh
+ninja -C build
+```
+
+Run tests (full Unity output):
+
+```sh
+ninja -C build check
+```
+
+Run tests (CTest summary only):
+
+```sh
+ninja -C build test
+```
+
+Configure with coverage:
+
+```sh
+cmake -S . -B build-cov -G Ninja -DENABLE_COVERAGE=ON
+```
+
+Generate coverage report:
+
+```sh
+ninja -C build-cov coverage
+```
+
+Open `build-cov/coverage/index.html` in a browser to view results.
+
+Run the application:
+
+```sh
+./build/main
+```
+
+On Windows use `./build/main.exe`.
+
+See `/skill:cmake` for coverage and sanitizer details.
+
 ## Coding Conventions
 
 ### C

README.md

@@ -8,6 +8,16 @@ template when scaffolding new projects.
 All dependencies are fetched automatically via CMake `FetchContent` with no
 manual installation required beyond the tools listed below.
 
+## License
+
+This template is licensed under the MIT License. The license covers the
+CMake build files, `deps/` scripts, and other template infrastructure.
+
+Because this is a project template, your own source code is not bound by
+this license. You are free to choose any license for your project that is
+compatible with MIT. Simply replace the `LICENSE` file with your chosen
+license.
+
 ## Requirements
 
 | Tool         | Purpose                                              |