fix: add default values to Literal type fields in content types - #1867
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felixweinberger merged 3 commits intoJan 16, 2026
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fix: add default values to Literal type fields in content types#1867felixweinberger merged 3 commits into
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January 15, 2026 16:30
Content types like TextContent and ImageContent have single-value Literal type fields (e.g., type: Literal["text"]) that now default automatically so users don't have to pass them explicitly. Before: TextContent(type="text", text="hello") After: TextContent(text="hello") Github-Issue: #1731
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January 16, 2026 08:21
Kludex
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tests/test_types.py
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Summary
Add default values to single-value Literal type fields in content types so users don't have to pass them explicitly.
Motivation and Context
Content types like TextContent and ImageContent have single-value Literal type fields (e.g., type: Literal["text"]) that should default automatically since there's only one valid value.
Before:
After:
Fixes #1731
How Has This Been Tested?
Added regression test test_content_type_literal_defaults in tests/test_types.py covering representative types (TextContent, ImageContent, PromptReference).
Breaking Changes
None. Existing code that explicitly passes the type field will continue to work.
Types of changes
Checklist
Additional context
Affected types:
This follows the same pattern as PR #1292 which added defaults for method: Literal fields on request/notification types.