* fix(responses): translate OpenAI tool_search to Anthropic tool search for Claude models
* fix(responses): define the tool_search_call output item locally for older openai SDKs
* fix(responses): gate tool search on the Anthropic request builder and validate deferred tool fields
Bedrock Converse builds its own request and has no tool search, so the bridge now drops the tool_search tool there with a warning instead of sending a tool the transport loses, while Bedrock invoke, Anthropic, and Vertex keep it. A replayed tool_search_call with no stored result is dropped from the Anthropic request so a previous_response_id follow-up no longer answers 400. Only srvtoolu_ ids whose name is one of Anthropic's search tools count as search calls, so a caller function named like one stays a function call. A non-boolean defer_loading or a non-list allowed_callers now answers 400 instead of 500
* fix(responses): keep an answered search call on replay and send tools undeferred when no search tool goes out
A replayed Claude tool search call that the caller answered with a tool message kept its
tool_result in the user turn while its tool_use was dropped from the assistant turn, so
Anthropic answered 400 on the OpenAI-SDK tool loop. The search call is now dropped only when
no tool message answers it.
The Responses bridge now strips defer_loading from every tool whenever no tool search tool is
sent, whether the caller sent none or the route cannot run it, since a deferred tool with no
search tool can never be loaded. Namespace members had started carrying the flag to every
bridge provider, which providers that reject unknown tool keys answered 422.
The audit round-1 integration cells for the bridge wire and chaos paths ride in this commit.
* fix(responses): gate only the OpenAI tool_search shape and keep native Anthropic search tools intact
A native tool_search_tool_regex_20251119 or tool_search_tool_bm25_20251119 tool the caller sends through /v1/responses passes through the bridge on every route as before, and the other tools keep defer_loading whenever any Anthropic search tool goes out. The route gate now drops the OpenAI tool_search item before translation instead of filtering the translated regex tool, so bm25 counts as a search tool. answered_tool_call_ids walks the history with islice instead of a slice copy. The tool_search_call output item drops its created_by field, which OpenAI rejects on a replayed input item and the streaming item never carried
* fix(anthropic): translate the OpenAI tool_search tool on /v1/chat/completions for Claude models
* fix(responses): drop malformed tool flags under drop_params and keep stored search calls off non-Anthropic follow-ups
With drop_params on, a non-boolean defer_loading or a non-list allowed_callers on a Responses API tool (or a namespace member) is dropped before the bridge instead of answering 400, so only a request without drop_params gets the 400. A custom tool now carries defer_loading to the chat tool like a function tool does
A previous_response_id follow-up routed to a provider that does not build an Anthropic request no longer replays the stored Claude search call (srvtoolu_ id) as a client tool call. Mistral answered that history 400 "Unexpected tool call id". An assistant turn that held only the search call is dropped there. The Anthropic route keeps the call, since its factory pairs it with the stored result
The tool_search_call output model is renamed OutputToolSearchCall so the proxy's OpenAPI schema keeps the OpenAI SDK's ResponseToolSearchCall name. answered_tool_call_ids reads the history by index, so the lookup is linear in the history length. The streaming done event reads the response it is given, which is the same object it used to read from the iterator
* fix(bedrock): answer 400 for the OpenAI tool_search tool on Converse unless drop_params is set
* fix(responses): validate function allowed_callers, send one search tool, and keep replays clean off Anthropic
A function tool whose allowed_callers is not a list of strings now answers 400
instead of 500. The guardrail scan reads tools without malformed flags, so the
route decides between a 400 and a drop under drop_params. When the caller sends
a native Anthropic search tool beside tool_search, only the native one goes out.
Databricks Claude no longer counts as an Anthropic request route.
A previous_response_id follow-up off Anthropic also drops a search call the
client replayed as a function_call with a srvtoolu_ id, and its output. The
answered tool id scan in the Anthropic message factory runs once per assistant
run instead of once per message. A null created_by on tool_search_call and
tool_search_output output items is left out of the serialized response, so a
cache hit returns the same keys as the first call.
* fix(anthropic): send one search tool and judge tool search on the real model for chat tool_search
Several OpenAI tool_search items now collapse into one tool_search_tool_regex
tool, since Anthropic answers 400 when two tools share a name. A native
Anthropic search tool the caller already sent wins over the OpenAI item.
Bedrock invoke and Vertex AI now decide tool search support on the real model
before tool-based response_format swaps in a stub model name, so a Claude 5.5
request with response_format no longer gets a 400 on a route that runs tool
search.
* fix(anthropic): name the proxy drop_params setting in the tool_search 400
* fix(guardrails): keep OpenAI tool_search out of the Responses guardrail tool scan
The scan translated tool_search into Anthropic's regex search tool on every
route, so a guardrail returning only function tools removed tool_search from
native OpenAI requests and OpenAI answered 400 for the deferred tools
* fix(anthropic): run tool search on azure_ai, gate it on Databricks Claude, and strip deferral without recursion
Anthropic's Foundry docs list no tool search exclusion for either hosting
option, so the claude-tool-search rule now fills azure_ai. Databricks Claude
models route their tools through the same unsupported-tool-search gate, so a
tool_search tool answers 400 or drops under drop_params instead of a 500.
_without_deferral strips two fixed levels instead of walking recursively.
* fix(anthropic): drop answered tool search replays beside client calls, place system before dropped search turns, flag tool search on azure_ai
* fix(anthropic): keep answered tool search replays paired with their answers
* fix(anthropic): drop Claude tool search calls from history sent to other routes, name the fix in the 400
A second turn that carries Claude's srvtoolu_ search call and its result now has both removed
before completion() sends it to a route that does not build an Anthropic request, including the
responses bridge. The tool search 400 now names model_info supports_tool_search for a model the
cost map does not know, and bedrock/invoke for a Converse model that runs tool search there.
* fix(anthropic): place mid-conversation system messages in one pass and scan tool_search_call in output guardrails
* fix(chat): keep answered Claude tool search calls in history sent to other providers
Only a srvtoolu_ search call with no tool result is dropped before a
non-Anthropic route, so an answered pair keeps the caller's shape where
OpenAI and Gemini take it. The history check no longer copies the list
through a TypeAdapter.
* fix(guardrails): send empty incomplete tool_search_call arguments when a rewrite is not a JSON object
* fix(chat): drop unanswered Claude tool search calls only on routes that reject them
OpenAI, Azure OpenAI and Bedrock Converse answer 400 for a srvtoolu_ call
with no tool result, while Gemini answers 200. Keep the history as sent
everywhere else so routes that already work see what the caller sent.
* fix(responses): keep the caller's defer_loading on Claude routes when no server tool_search is sent
* test(integration): cover chat tool_search routing, history drop and load on the wire
Audit round 1 of 3 at 9150723c84: 58 cells across the Claude routes, Converse, Databricks, the drop_params sources, replayed history on openai, azure, Converse and gemini, and a burst, an outage and a worker kill
* fix(guardrails): deliver streamed rewrites when OpenAI's tool_search_call has no call_id
* fix(responses): answer 400 to a tool_search execution that is not server or client
OpenAI's own Responses API answers 400 invalid_value to it. With drop_params the malformed
execution is dropped like the other malformed tool flags, which leaves a server search
* test(responses): cover the 400 and drop_params paths for a malformed tool_search execution
* test(responses): cover a Claude search call replayed to Bedrock Converse with cache marks
* fix(anthropic): map only a server or unset tool_search execution to Anthropic tool search, so a malformed value answers 400
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
* fix(anthropic): judge the chat tool_search gate with a strict server check and keep the Responses bridge classification
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
* style(responses): sort the tool_search __all__
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
---------
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
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