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c23d719780
Extend the existing on_progress callback to carry structured tool-event payloads alongside the plain-text hint, so channels can render rich tool execution state (start/finish/error, arguments, results, file attachments) rather than only the pre-formatted hint string. Changes ------- - AgentLoop._tool_event_start_payload() — builds a version-1 start payload from a ToolCallRequest - AgentLoop._tool_event_result_extras() — extracts files/embeds from a tool result dict - AgentLoop._tool_event_finish_payloads() — maps tool_calls + tool_results + tool_events from AgentHookContext into finish payloads - _LoopHook.before_execute_tools() — passes tool_events=[...] to on_progress together with the existing tool_hint flag - _LoopHook.after_iteration() — emits a second on_progress call with the finish payloads once tool results are available - _bus_progress() — forwards tool_events as _tool_events in OutboundMessage metadata so channel implementations can read them - on_progress type widened to Callable[..., Awaitable[None]] on all public entry points; _cli_progress updated to accept and ignore tool_events The contract is additive: callers that only accept (content, *, tool_hint) continue to work unchanged. Callers that also accept tool_events receive the structured data. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>