Ed Zynda ac8ee6525d refactor(pkg/kit): replace fantasy type aliases with concrete LLM* structs ...

Remove charm.land/fantasy from the public API surface of pkg/kit by
replacing the four type aliases with concrete Kit-owned structs:

- LLMMessage  {Role LLMMessageRole, Content string}
- LLMUsage    {InputTokens, OutputTokens, TotalTokens, ...}
- LLMResponse {Content, FinishReason, Usage}
- LLMFilePart {Filename, Data []byte, MediaType}

Add LLMMessageRole type with user/assistant/system/tool constants.

Introduce pkg/kit/llm_convert.go as the single boundary layer where
Kit types convert to/from fantasy types internally. All callers in
pkg/kit, pkg/kit/compaction.go, pkg/kit/extensions_bridge.go, and
internal/app/app.go cross through this layer.

ContextPrepareHook.Messages and ContextPrepareResult.Messages change
from []fantasy.Message to []LLMMessage. extensions_bridge.go drops
its fantasy and strings imports entirely.

internal/app/app_test.go switches &fantasy.Usage{} to &kit.LLMUsage{}.

Add seven new tests in types_test.go covering concrete construction,
role constants, JSON snake_case tags, and round-trip conversion.

2026-03-31 13:44:05 +03:00

..

kit-extensions

Bridge SDK features to extension system: tree navigation, skills, templates, model resolution

2026-03-28 12:00:19 +03:00

kit-sdk

refactor(pkg/kit): replace fantasy type aliases with concrete LLM* structs

2026-03-31 13:44:05 +03:00