[ez] move harmony utils to parser folder

[qandrew]

Purpose

Refactor so we centralize all the files related to parsing for MCP

Test Plan

No functional changes, existing unit tests should pass

Test Result

[gemini-code-assist]

Code Review

This pull request refactors the codebase by moving harmony_utils.py into the vllm/entrypoints/openai/parser/ directory. This change helps to centralize parsing-related utilities for MCP, improving the project structure. The changes consist of file renames and corresponding import path updates across several files. I've reviewed the changes and they are correct and consistent with the refactoring goal. There are no functional changes, as expected. This is a good cleanup.

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Preserve compatibility for harmony_utils import

Moving harmony_utils under vllm.entrypoints.openai.parser removes the previous vllm.entrypoints.harmony_utils module, but tests/entrypoints/openai/test_response_api_with_harmony.py still imports the old path at line 729, so running the responses test suite now fails immediately with an ImportError. Either update that call site or add a compatibility shim at the old module path to keep the tests runnable.

Useful? React with 👍 / 👎.

[DarkLight1337]

cc @WoosukKwon @heheda12345

[yeqcharlotte]

LGTM

[heheda12345]

sorry for my late review. But we need to update

vllm/.github/mergify.yml

Lines 164 to 180 in 17eb25e

	- name: label-gpt-oss
	description: Automatically apply gpt-oss label
	conditions:
	- label != stale
	- or:
	- files~=^examples/.*gpt[-_]?oss.*\.py
	- files~=^tests/.*gpt[-_]?oss.*\.py
	- files~=^tests/entrypoints/openai/test_response_api_with_harmony.py
	- files~=^tests/entrypoints/test_context.py
	- files~=^vllm/model_executor/models/.*gpt[-_]?oss.*\.py
	- files~=^vllm/model_executor/layers/.*gpt[-_]?oss.*\.py
	- files~=^vllm/entrypoints/harmony_utils.py
	- files~=^vllm/entrypoints/tool_server.py
	- files~=^vllm/entrypoints/tool.py
	- files~=^vllm/entrypoints/context.py
	- title~=(?i)gpt[-_]?oss
	- title~=(?i)harmony

accordingly.