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kit/pkg
Ed Zynda 64caed57d4 fix(sdk): stop leaking fantasy types through pkg/kit.AgentConfig (#30) (#32)
* fix(sdk): stop leaking fantasy types through pkg/kit.AgentConfig (#30)

Replace the alias-based AgentConfig and handler types with SDK-owned
structs and function types. CoreTools / ExtraTools / ToolWrapper now
accept []kit.Tool, and the handler types (ToolCallHandler,
ToolExecutionHandler, ToolResultHandler, ResponseHandler,
StreamingResponseHandler, ToolCallContentHandler) plus SpinnerFunc are
declared in pkg/kit/ with signatures that reference only SDK types.

Consumers no longer need to import charm.land/fantasy to populate an
AgentConfig or assign a handler. go doc pkg/kit AgentConfig output no
longer mentions fantasy.*.

- Add unexported (*AgentConfig).toInternal() to convert at the SDK
  boundary; Tool is still an alias for the underlying tool type, so
  slice and function fields convert without allocation.
- Add agent_config_internal_test.go covering nil receiver, scalar
  fields, tool slices, ToolWrapper invocation, OnMCPServerLoaded, and
  auth/token-factory wiring.
- Add types_test.go cases that populate AgentConfig and SpinnerFunc
  without importing fantasy -- the file compiling is the regression
  proof for the leak.
- Update pkg/kit/README.md Re-exported Types section to record that
  AgentConfig and the handler types are now Kit-owned.

Fixes #30

* fix(sdk): add DebugLogger and MCPTaskConfig to kit.AgentConfig (#30)

The first revision of the SDK-owned AgentConfig dropped two fields that
internal/agent.AgentConfig carried: DebugLogger (tools.DebugLogger) and
MCPTaskConfig (tools.MCPTaskConfig). Restore them with SDK-owned
equivalents and wire them through toInternal().

- Add kit.DebugLogger interface (LogDebug / IsDebugEnabled) mirroring
  tools.DebugLogger. Interface-to-interface assignment is automatic
  because the method sets match.
- Add kit.MCPTaskConfig struct mirroring tools.MCPTaskConfig with SDK
  types (MCPTaskMode, MCPTaskProgressHandler) and a toToolsConfig()
  helper that converts at the SDK boundary.
- Wire both new fields in (*AgentConfig).toInternal().
- Extend agent_config_internal_test.go with cases for both fields.
- Document the additions in pkg/kit/README.md.
2026-05-13 21:10:28 +03:00
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