The previous two posts covered how events flow from the SDK to the UI. This post focuses on visualizing one specific type of event: tool calls. Tool invocations are the most frequent operations in an Agent application. A typical task might call tools twenty or thirty times—reading files, writing files, executing commands, searching code. If every tool call renders as the same gray block, it's hard
Post 1 covered how AgentBridge converts the SDK's AsyncStream<SDKMessage> into [AgentEvent]. This post looks at what [AgentEvent] becomes — how TimelineView renders 18 event types, handles scroll behavior, and stays smooth when the event count gets large. TimelineView is the main body of the workspace, filling all the space between the sidebar and the input box. Its view hierarchy is shallow: Time
By Q2 2026, engineering teams building local Retrieval-Augmented Generation (RAG) pipelines will waste $47M annually on managed vector databases they don't need – and Pinecone 2.0's 300% price hike over its 1.0 release is the biggest culprit. VS Code inserting 'Co-Authored-by Copilot' into commits regardless of usage (842 points) A Couple Million Lines of Haskell: Production Engineering at Mer