Add teaching Python agent CLI with Poetry and CI

src/agt/cli.py

@@ -0,0 +1,47 @@
+from __future__ import annotations
+
+import argparse
+from pathlib import Path
+
+from .agent import Agent, Tool, echo_tool
+
+
+def build_parser() -> argparse.ArgumentParser:
+    parser = argparse.ArgumentParser(prog="agt", description="Teaching-oriented AI agent CLI")
+    parser.add_argument("prompt", nargs="?", default="请开始", help="User prompt")
+    parser.add_argument(
+        "--skills-dir",
+        default="skills",
+        help="Directory containing skill folders with SKILL.md",
+    )
+    parser.add_argument(
+        "--list-skills",
+        action="store_true",
+        help="List discovered skills and exit",
+    )
+    return parser
+
+
+def main() -> int:
+    parser = build_parser()
+    args = parser.parse_args()
+
+    agent = Agent()
+    agent.register_tool(Tool("echo", "Echo input text", echo_tool))
+
+    skills = agent.load_skills(Path(args.skills_dir))
+    if args.list_skills:
+        for skill in skills:
+            print(skill)
+        return 0
+
+    if skills:
+        agent.remember(f"loaded_skills={','.join(skills)}")
+
+    reply = agent.run(args.prompt)
+    print(reply)
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())