ContentBlock Polymorphism (9 Variants)
- Entity ID:
ent-20260423-r31a000000040 - Type:
concept - Scope:
private - Status:
active
Description
The ContentBlock discriminated union has 9 variants per Southbridge's source analysis: TextBlock, ImageBlock, ToolUseBlock, ToolResultBlock, ThinkingBlock (standard); DocumentBlock, VideoBlock (platform-specific); GuardContentBlock (safety classifier content annotation); ReasoningBlock, CachePointBlock (prompt cache insertion marker). Several are platform-specific and undocumented in the public API reference.
Key claims
- ContentBlock is a 9-variant discriminated union
Relations
- ContentBlock Polymorphism (9 Variants) --[contained_in]--> APIMessage (Stage 2 API Wire Format)
- CachePointBlock --[variant_of]--> ContentBlock Polymorphism (9 Variants)
- GuardContentBlock --[variant_of]--> ContentBlock Polymorphism (9 Variants)