Scaffold a Toolkit DSL App

Process steps in order, do not skip ahead. The default API level for new apps is the Toolkit DSL — this skill never picks TuiRunner or Immediate Mode unless the user explicitly asks for them.

Step 1 — Confirm Scope

• Ask the user (or infer from the request) three things: the package (e.g., com.example.demo), the class name (e.g., HelloApp), and the delivery channel (JBang single-file, Maven module, or Gradle module)
• If any of the three is missing and the request is ambiguous, ask once with a concrete default; otherwise pick the default and state it in your reply
• Defaults: package dev.example, class HelloApp, channel JBang

Step 2 — Choose Dependencies

• Always include dev.tamboui:tamboui-toolkit (the DSL) and dev.tamboui:tamboui-jline3-backend (a backend is required)
• Pick the version: if the target project already pins a TamboUI version, reuse it; otherwise use the snapshot repo https://central.sonatype.com/repository/maven-snapshots/ and the latest snapshot
• Do not add tamboui-tui or tamboui-widgets directly — tamboui-toolkit already pulls them in

Step 3 — Write the App Class

• Create the source file at the right path for the chosen channel (JBang: a single .java at the chosen location; Maven/Gradle: under src/main/java/<package-path>/)
• The class must extend ToolkitApp and override render() to return a single root Element — start with panel("Title", text("Hello").bold().cyan(), spacer(), text("Press 'q' to quit").dim()).rounded()
• The main method must be public static void main(String[] args) throws Exception { new ClassName().run(); }
• Use import static dev.tamboui.toolkit.Toolkit.*; so the factory methods are unqualified

Step 4 — Wire the Build Channel

• JBang: add //DEPS dev.tamboui:tamboui-toolkit:<version> and //DEPS dev.tamboui:tamboui-jline3-backend:<version> at the top of the file; if using snapshots, add //REPOS central-portal-snapshots (JBang ≥ 0.136) or the explicit URL
• Maven: ensure pom.xml declares the snapshot repo and pulls the BOM dev.tamboui:tamboui-bom, then tamboui-toolkit and tamboui-jline3-backend without versions
• Gradle (Kotlin DSL): add the snapshot repo with mavenContent { snapshotsOnly() }, then implementation(platform("dev.tamboui:tamboui-bom:<version>")) and the two artifacts

Step 5 — Verify the App Builds and Runs

• For JBang: run jbang <file> in the user's terminal — TamboUI needs a real TTY, so this must run in an actual terminal, not a Gradle task or IntelliJ Run config
• For Maven/Gradle: build with mvn -q compile or ./gradlew -q assemble; for the run step, instruct the user to invoke the produced JAR from a real terminal (Gradle's daemon has no TTY — see getting-started.adoc's "Running/Debugging" section)
• If any step fails: stop, surface the failure verbatim, do not silently change the dependency version or backend choice — those are the user's call
• Finish here. Do not extend the app with widgets the user did not ask for; this skill only scaffolds the minimum.