Stacked on #27365. ## Stack note [#27365](https://github.com/openai/codex/pull/27365) kept `thread/start` unchanged and converted its input in `thread_processor`. This PR updates `thread/start` to accept explicit functions and namespaces directly. Legacy per-tool arrays are still accepted and converted while reading the request. As a result, `thread_processor` can validate and pass the tools through directly, which is why some code added in #27365 is removed here. ## Why `thread/start.dynamicTools` still repeats namespace data on each function even though core now stores explicit namespace groups. The request API should use the same shape so each namespace has one description and one member list. ## What changed - Accept top-level functions and explicit namespace objects in `dynamicTools`. - Continue accepting fully legacy flat arrays, including `exposeToContext`. - Reject arrays that mix legacy and canonical entries. - Reuse the protocol types directly and remove the temporary app-server adapter. - Update validation, docs, the test client, and generated schemas. ## Test plan - `just test -p codex-app-server-protocol` - `just test -p codex-app-server dynamic_tool_call_round_trip_sends_text_content_items_to_model` - `just test -p codex-app-server thread_start_normalizes_legacy_dynamic_tools_into_model_request` - `just test -p codex-app-server thread_start_rejects_mixed_dynamic_tool_formats` - `just test -p codex-app-server thread_start_rejects_hidden_dynamic_tools_without_namespace`
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This repository is licensed under the Apache-2.0 License.
