v0.2.1

[x2d7]

Summary

Merges three improvements from dev: context cancellation hardening in the streaming layer, primitive type support in tool input unmarshaling, and partial tool call assembly in Session.

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Changes

#18 — Context cancellation in Stream.Next()

Stream.Next() now accepts a context.Context and respects cancellation mid-stream. Empty chunks from the OpenAI streaming response are handled gracefully instead of causing parse errors.

#21 — Primitive type support in tool input unmarshaling

NewTool previously constructed the correct inputType via ensureInputStructType[T]() but always unmarshaled into T directly — causing failures for primitive types (string, int, bool, float64). The execution wrapper now uses reflection to construct the appropriate container, so primitives are handled correctly alongside structs.

#22 — Partial tool call assembly in Session

Providers that stream tool calls in chunks (first event carries CallID, subsequent events carry argument fragments) caused broken, incomplete JSON to be delivered to callers. Session now assembles partial chunks into complete EventNewToolCall events before forwarding them. Events are dispatched as soon as a call is fully assembled — not batched until end of generation — keeping with interlude's streaming-first design.

Also includes a refactor of Session internals: state moved into a dedicated sessionState struct, flush and completion-end logic extracted into methods, and send helper unified across the handler.

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Tests

• Context cancellation for Stream.Next() and Session at various lifecycle points
• End-to-end Execute() coverage for primitive and struct tool inputs
• Partial tool call assembly: single call, multiple interleaved calls, large content
• Interleaved token and tool call event ordering