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| @@ -808,13 +809,21 @@ async def responses_full_generator( | |||
| harmony_msgs = context.messages[context.num_init_messages :] | |||
| if harmony_msgs: | |||
| fn_names = context.function_tool_names | |||
| name_map = build_responses_tool_call_name_map(request.tools) | |||
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The Harmony streaming path still passes the flattened recipient directly to emit_function_call_delta_events, which builds ResponseFunctionToolCall(name="mcp__search") with no namespace. That makes stream=true disagree with this full-response path for the same namespace tool; _process_harmony_streaming_events needs the same name-map resolution.
chaunceyjiang
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Could you provide some local test results and add an e2e test case as well?
… in Responses API Fixes vllm-project#49493 The harmony/gpt-oss code path in get_developer_message() rejected namespace tools with ValueError because only function, web_search_preview, code_interpreter, and container types were handled. PR vllm-project#47024 added namespace tool support for the non-harmony path but did not update the harmony path. This change: - Flattens namespace tools into function tool descriptions with {namespace}__{name} names in the harmony developer message, reusing the existing flat_namespace_tool_name() helper - Resolves flat namespace tool names back to separate name + namespace fields in both streaming and non-streaming harmony output, matching the non-harmony Responses API behavior - Adds unit tests for namespace tool handling in get_developer_message() - Adds unit tests for streaming namespace resolution - Adds e2e tests for namespace tool calling (streaming and non-streaming) Signed-off-by: Raj Firke <79653531+rajfirke@users.noreply.github.com>
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| "tools": [ | ||
| { | ||
| "type": "function", | ||
| "name": "shell", |
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It looks like this is not actually a namespace tool, right?
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It is a namespace tool, the outer dict has "type": "namespace" (line 1252) with "name": "codex" as the namespace. The inner entry at line 1257 has "type": "function" because that's how the OpenAI Responses API NamespaceTool schema works: namespace tools are wrappers that group function tools under a common namespace.
The test verifies that:
- The request is accepted without
ValueError: tool type namespace not supported - The output correctly resolves the flat name
codex__shellback toname="shell"+namespace="codex"
This matches the existing test in test_namespace_tool_separator.py which uses the same structure for non-harmony models.
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@chaunceyjiang Addressed all feedback: streaming path namespace resolution, e2e tests, and the namespace schema clarification above. Is there anything else needed, or could this get the ready label for CI? |
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Gentle ping! all review feedback has been addressed (streaming namespace resolution, e2e tests, namespace schema clarification). Happy to make any further changes if needed. @aarnphm @bbrowning would either of you be able to take a look as well? |
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This pull request has merge conflicts that must be resolved before it can be |
Summary
Fixes #49493
Harmony/gpt-oss models reject namespace tools in the Responses API with
ValueError: tool type namespace not supported. PR #47024 added namespace tool support for the non-harmony path but did not update the harmony code path.This blocks OpenAI Codex CLI from working with self-hosted harmony models via vLLM, since Codex sends
namespacetool types with every request.Changes
Input (harmony_utils.py): Handle
tool.type == "namespace"inget_developer_message()by flattening namespace tools into function tool descriptions with{namespace}__{name}names, reusing the existingflat_namespace_tool_name()helper fromtool_parsers/utils.py.Output (harmony.py + serving.py): Resolve flat namespace tool names back to separate
name+namespacefields in harmony output items usingresolve_responses_tool_call_name(), matching the non-harmony Responses API behavior added in PR #47024.Tests: 4 unit tests for namespace tool handling in
get_developer_message():Test Plan
cc @aarnphm @chaunceyjiang @DarkLight1337 @russellb