Python: constructor-registered tools missing from agent-hooks agent_startup projection

[MohammadHaroonAbuomar]

In the agent-hooks feature, _tool_names reads getattr(agent, "tools", None), but Agent stores constructor-registered tools in default_options["tools"] — so tools passed at construction never surface in the agent_startup record's tools_registered, while run-level tools project correctly. Found during a conformance cross-validation of the merged feature (responsibleai/agent-hooks, conformance/claims/maf/REPORT.md).

[github-actions]

🤖 Automated triage reproduction notes (agent-authored — trust but verify)

Agent analysis

Repro: _tool_names() in python/packages/core/agent_framework/_agent_hooks.py line 862 uses getattr(context.agent, "tools", None) as fallback when context.tools is None, but Agent stores constructor-registered tools in self.default_options["tools"] (line 897 of _agents.py), so the fallback always returns None. Minimal repro: create Agent(client=mock, tools=[some_tool]), build an AgentContext(agent=agent, messages=[], tools=None), call _tool_names(context) — returns [] instead of ["some_tool"].

• Failing test: python/packages/core/tests/core/test_agent_hooks_constructor_tools_bug.py
• Files examined: python/packages/core/agent_framework/_agent_hooks.py, python/packages/core/agent_framework/_agents.py, python/packages/core/agent_framework/_middleware.py, python/packages/core/tests/core/test_agent_hooks.py
• Tests run: python/packages/core/tests/core/test_agent_hooks_constructor_tools_bug.py::test_tool_names_includes_constructor_registered_tools
• Current version: 1.13.0