Fix missing imports in sync-openai-agents template

[muhammad-rifky-scale]

Summary

• Add StreamTaskMessageFull to the TaskMessageUpdate import in acp.py.j2
• Add missing TextContent import from agentex.types.text_content

Context

The issue was discovered when running agentex init and selecting the Sync ACP + OpenAI Agents SDK template. The generated acp.py was missing two imports, causing runtime errors immediately after project initialization when OPENAI_API_KEY is not present.

Test plan

• Ran agentex init, selected Sync ACP → Sync ACP + OpenAI Agents SDK, and verified the generated project contains the correct imports without errors

Greptile Summary

Fixes two missing imports in the sync-openai-agents Jinja2 template that caused immediate NameError at runtime when using agentex init with the Sync ACP + OpenAI Agents SDK option.

• Adds StreamTaskMessageFull to the import from agentex.types.task_message_update (used on line 79 for the missing-API-key guard)
• Adds TextContent import from agentex.types.text_content (used on line 82 to construct the error message content)
• Both symbols are verified exports from their respective modules; no other templates are affected

Confidence Score: 5/5

• This PR is safe to merge — it only adds two missing imports that fix a runtime NameError.
• The change is minimal (2 lines added), purely additive (import statements only), fixes a clear runtime bug, and both imported symbols are verified exports from their source modules. No logic changes, no risk of regression.
• No files require special attention.

Important Files Changed

Filename	Overview
src/agentex/lib/cli/templates/sync-openai-agents/project/acp.py.j2	Adds two missing imports (StreamTaskMessageFull, TextContent) that are used on lines 79 and 82 respectively. Both symbols are verified exports from their source modules. No issues found.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A["agentex init (Sync ACP + OpenAI Agents)"] --> B["Generates acp.py from acp.py.j2"]
    B --> C{"OPENAI_API_KEY set?"}
    C -- No --> D["yield StreamTaskMessageFull\nwith TextContent error message"]
    C -- Yes --> E["Run OpenAI Agent via Runner.run_streamed"]
    E --> F["convert_openai_to_agentex_events"]
    F --> G["yield agentex streaming events"]
    G --> H["Update task state via adk.state.update"]

    style D fill:#f9d71c,stroke:#333

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_{Last reviewed commit: 0d2c5f0}