Merge pull request #78 from vstorm-co/issue/77

fix: Hardcoded web_search and web_fetch in _default_deep_agent_factory

Author: DEENUU1

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.3.14] - 2026-04-16
+
+### Fixed
+
+- **Subagents ignored parent `web_search`/`web_fetch` settings** — the default subagent factory in `create_deep_agent` hardcoded `web_search=True` and `web_fetch=True`, overriding the parent agent's configuration. On Bedrock and Vertex Anthropic models this produced a 400 error (`web_fetch_20250910` not accepted), because the beta web tools are not supported there. The factory now propagates the parent agent's `web_search` and `web_fetch` flags to spawned subagents. ([#77](https://github.com/vstorm-co/pydantic-deepagents/issues/77), reported by [@SvdR82](https://github.com/SvdR82))
+
 ## [0.3.13] - 2026-04-13
 
 ### Fixed

README.md

@@ -516,6 +516,8 @@ make all    # lint + typecheck + test
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+| **[content-skills](https://github.com/vstorm-co/content-skills)** | Claude Code content studio — blog, social, slides, video, infographics — all brand-aware. | [![Stars](https://img.shields.io/github/stars/vstorm-co/content-skills?style=flat&logo=github&color=yellow)](https://github.com/vstorm-co/content-skills) |
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pydantic_deep/agent.py

@@ -559,17 +559,19 @@ def _set_toolset_retries(toolset: AbstractToolset[DeepAgentDeps], max_retries: i
         _sub_context_discovery = context_discovery
         _sub_memory = include_memory
         _sub_memory_dir = memory_dir
+        _sub_web_search = web_search
+        _sub_web_fetch = web_fetch
 
-        def _default_deep_agent_factory(cfg: dict[str, Any]) -> Any:  # pragma: no cover
+        def _default_deep_agent_factory(cfg: dict[str, Any]) -> Any:
             """Create a deep agent for subagent execution."""
             return create_deep_agent(
                 model=cfg.get("model", _sub_model),
                 instructions=cfg["instructions"],
                 include_filesystem=True,
                 include_execute=True,
                 include_todo=True,
-                web_search=True,
-                web_fetch=True,
+                web_search=_sub_web_search,
+                web_fetch=_sub_web_fetch,
                 thinking=False,  # Save tokens on subagents
                 include_subagents=False,
                 include_skills=False,

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "pydantic-deep"
-version = "0.3.13"
+version = "0.3.14"
 description = "Batteries-included agent harness for Python — tool-calling, sandboxed execution, multi-agent teams, and unlimited context on Pydantic AI"
 readme = "README.md"
 keywords = [

tests/test_agent.py

@@ -65,6 +65,40 @@ def test_create_with_subagent_configs(self):
         agent = create_deep_agent(model=TEST_MODEL, subagents=subagents)
         assert agent is not None
 
+    def test_default_subagent_factory_propagates_web_flags(self):
+        """Regression for #77: default subagent factory must inherit parent's
+        ``web_search`` and ``web_fetch`` flags. Otherwise Bedrock/Vertex
+        Anthropic models error out on unsupported beta tools.
+        """
+        from pydantic_ai.capabilities import WebFetch, WebSearch
+
+        def _sub_caps(parent_web_search: bool, parent_web_fetch: bool) -> list[type]:
+            subagents: list[SubAgentConfig] = [
+                SubAgentConfig(
+                    name="researcher",
+                    description="A research agent",
+                    instructions="You research topics",
+                ),
+            ]
+            create_deep_agent(
+                model=TEST_MODEL,
+                subagents=subagents,
+                web_search=parent_web_search,
+                web_fetch=parent_web_fetch,
+            )
+            factory = subagents[0]["agent_factory"]
+            assert factory is not None
+            sub_agent = factory({"instructions": "sub instructions", "model": TEST_MODEL})
+            return [type(c) for c in sub_agent._root_capability.capabilities]
+
+        off_types = _sub_caps(parent_web_search=False, parent_web_fetch=False)
+        assert WebSearch not in off_types
+        assert WebFetch not in off_types
+
+        on_types = _sub_caps(parent_web_search=True, parent_web_fetch=True)
+        assert WebSearch in on_types
+        assert WebFetch in on_types
+
     def test_create_with_interrupt_on(self):
         """Test creating an agent with interrupt_on config."""
         agent = create_deep_agent(