Summary

Implements the DeliveryAdapter class that converts AgentEvent async iterables from CLI runtimes into channel-deliverable ReplyPayload chunks.

• Text accumulation: Buffers incremental text events into coherent chunks
• Smart splitting: Splits at chunkLimit (default 4000) with boundary preference: paragraph (\n\n) > line (\n) > word (space) > hard split
• Code fence preservation: Detects open markdown fences and either splits before them or closes/reopens at split points
• Streaming callbacks: Invokes BridgeCallbacks (onPartialReply, onBlockReply, onToolResult) for real-time channel delivery
• Error formatting: Formats error events with isError: true and optional error codes
• Tool result formatting: Formats tool results via onToolResult callback

Test plan

• 33 tests covering all acceptance criteria
• Text accumulation (single, multiple, empty, none)
• Message splitting (paragraph, line, word, hard boundaries)
• Streaming callbacks (partial, block, tool result, async, optional)
• Event types (tool_use no-op, tool_result, error, done flush)
• Code fence preservation (backtick, tilde, closed fences)
• Integration pattern (realistic sequence, no-done fallback, very long text)
• Default chunk limit verification
• Full test suite passes (861 tests)
• pnpm check passes (format + typecheck + lint)

Closes #26

🤖 Generated with Claude Code