feat: focus Work tools by task intent

tests/test_agent_loop.py

@@ -11,6 +11,7 @@ from agent_platform.runtime.loop import (
     AgentLoop,
     is_substantive_execution,
     normalize_write_file_content,
+    select_tool_specs,
     tool_event_details,
 )
 from agent_platform.runtime.tools import TOOL_METADATA
@@ -45,6 +46,34 @@ def test_read_only_shell_commands_do_not_satisfy_execution_evidence() -> None:
     assert is_substantive_execution("start_process", {"command": "python3 server.py"})
 
 
+def test_simple_script_task_receives_a_focused_tool_menu() -> None:
+    specs = [metadata.openai_spec() for metadata in TOOL_METADATA.values()]
+    selected = select_tool_specs(specs, "写脚本对比排序算法，给一个报告", depth=0)
+    names = {spec["function"]["name"] for spec in selected}
+    assert names == {
+        "workspace_status",
+        "list_files",
+        "read_file",
+        "search_files",
+        "write_file",
+        "apply_patch",
+        "exec",
+        "update_plan",
+    }
+
+
+def test_complex_requests_enable_only_relevant_optional_tools() -> None:
+    specs = [metadata.openai_spec() for metadata in TOOL_METADATA.values()]
+    selected = select_tool_specs(
+        specs,
+        "重构 Git 仓库里的 web server，并记住这个偏好，分工并行调研",
+        depth=0,
+    )
+    names = {spec["function"]["name"] for spec in selected}
+    assert {"delegate_task", "git_status", "git_diff", "start_process", "poll_process"} <= names
+    assert {"remember", "recall_memory", "forget_memory"} <= names
+
+
 class ScriptedProvider:
     def __init__(self, responses: list[dict[str, Any]]) -> None:
         self.responses = responses