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Skip the generic required/named tool-choice JSON schema for parsers that declare supports_required_and_named=False. Those parsers emit native tool-call formats and should be parsed by their own parser instead of being forced into the standard JSON format. Add GLM regression coverage for Chat Completions and Responses required tool-choice requests so the parser keeps its native XML tool-call path. Signed-off-by: hubunt <150658615+hubunt@users.noreply.github.com> Co-authored-by: OpenAI Codex <codex@openai.com>
…parsers With VLLM_ENFORCE_STRICT_TOOL_CALLING=0 no structural tag is attached, so for tool_choice="required" or a named tool the base adjust_request forced JSON guided decoding. Parsers with supports_required_and_named=False (e.g. glm47) extract those calls with their native parser, found no call in the JSON output, and returned it as content. This regressed in vllm-project#45915. Return before the JSON-schema fallback for such parsers regardless of tool_choice (get_json_schema_from_tools only produces a schema for required/named), and move the tests to test_structural_tag_registry.py, covering required and named on Chat Completions and Responses plus GLM-4.7 through DelegatingParser with strict tool calling off. Signed-off-by: Flora Feng <4florafeng@gmail.com>
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✅ @hubunt, CI is now available for this PR.
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✅ Triggered Buildkite CI #91918 for commit |
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September 29, 2026 17:42
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This was referenced Sep 29, 2026
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Fixes #47504.
Purpose
Fix GLM tool calling with
tool_choice="required"so native XML/structural-tag tool parsers are not forced into the generic JSON structured-output path.What changed
supports_required_and_named=False.Why this is not duplicating an existing PR
I checked the issue page and searched open PRs for
47504,GLM required structured_outputs ToolParser,supports_required_and_named required GLM, andtool_choice=required glm47. I did not find an open PR covering this fix.Tests run and results
python -m py_compile vllm/tool_parsers/abstract_tool_parser.py tests/tool_parsers/test_glm4_moe_tool_parser.pygit diff --checkpython -m pytest tests/tool_parsers/test_glm4_moe_tool_parser.py tests/tool_use/test_gemma4_responses_adjust_request.py -qResult:
16 passed.AI assistance disclosure
This PR was prepared with OpenAI Codex assistance. I reviewed the changed lines and test results.