Add SchemaLlmTool and TextLlmTool

test/core/llm/TextLlmTool.test.ts

@@ -0,0 +1,21 @@
+import { describe, expect, it } from 'vitest';
+import { TextLlmTool } from '../../../src/core/llm/TextLlmTool';
+import type { RunContext } from '../../../src/core/llm/RunContext';
+
+class EchoTool extends TextLlmTool<Record<string, never>> {
+  protected readonly promptName = 'echo';
+  protected buildVariables(): Record<string, unknown> {
+    return {};
+  }
+}
+
+describe('TextLlmTool.parseOutput (via subclass)', () => {
+  it('trims the raw LLM text and returns it as-is', () => {
+    const tool = new EchoTool(
+      {} as unknown as ConstructorParameters<typeof EchoTool>[0],
+      {} as unknown as ConstructorParameters<typeof EchoTool>[1]
+    ) as unknown as { parseOutput(raw: string, ctx: RunContext): string };
+
+    expect(tool.parseOutput('  hello world  \n', {} as RunContext)).toBe('hello world');
+  });
+});