fix(tasks): rename json property to json_output to avoid BaseModel method conflict

[bunnysayzz]

Description

Both TaskOutput and CrewOutput inherit from Pydantic's BaseModel, which provides a built-in .json() method. Both classes defined a @property named json which shadowed BaseModel.json(), causing serialization conflicts.

This was acknowledged by a TODO comment in task_output.py.

Changes

• task_output.py: Renamed @property def json to @property def json_output, removed the TODO comment and # type: ignore[override]
• crew_output.py: Renamed @property def json to @property def json_output, removed the # type: ignore[override], added a docstring
• test_task.py: Updated 4 references from result.json to result.json_output, renamed test for consistency

Testing

• All existing tests pass with the updated property name
• The renamed property still returns the same JSON string as before
• Pydantic's native BaseModel.json() method is now accessible again

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: bf4da082-51e0-4972-bae8-5aa350895a48

📥 Commits

Reviewing files that changed from the base of the PR and between 0e5d0ec and 13b243d.

📒 Files selected for processing (3)

• lib/crewai/src/crewai/crews/crew_output.py
• lib/crewai/src/crewai/tasks/task_output.py
• lib/crewai/tests/test_task.py

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📝 Walkthrough

Walkthrough

Renames CrewOutput.json() to json_output(), changes TaskOutput.json() to a json_output property, and updates task tests for sequential, hierarchical, missing-configuration, and cross-task JSON output.

Changes

JSON output API

Layer / File(s)	Summary
JSON output accessors lib/crewai/src/crewai/crews/crew_output.py, lib/crewai/src/crewai/tasks/task_output.py	Crew output exposes json_output(), while task output exposes json_output as a property and retains its JSON-format validation.
Task JSON output tests lib/crewai/tests/test_task.py	Task tests now read result.json_output across sequential, hierarchical, missing-configuration, and cross-task scenarios.

Suggested reviewers: greysonlalonde

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly states the main change: renaming the json property to json_output to fix a BaseModel conflict.
Description check	✅ Passed	The description is directly related to the changeset and accurately summarizes the API rename and test updates.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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