V3 Gradle CLI toolchain capability pack. By-value connector composition (service_kind=cli, no separate ingredient): one local gradle CLI ingredient exposes bounded project operations for readiness, verification, and test execution. Project operations run from an explicit project directory cwd supplied at execution time, disable the daemon, use a plain console, limit warning noise, avoid caller-supplied tasks/properties/profiles/init scripts/settings/build files/modules, avoid project wrapper scripts and shell wrappers, and keep diagnostics visible as text output. Verification and test operations are approval-gated because Gradle may resolve dependencies and plugins, execute build scripts and plugins, compile project code, run tests or verification tasks, and write build directories or Gradle cache state. Requires gradle on PATH.