flexharness-swift

The FlexHarness agent harness in Swift, to run inside Apple apps on Mac, iPad and iPhone without a Node process. It follows flexharness, the TypeScript harness, in design and formats, not by sharing code. That means the same tool catalog (search_tools, describe_tools, execute, results.get), the same declarations shown to the model, and the same event and transcript model. Its sibling is flexharness-rust. Both are checked against the same fixtures.

It grows from the FlexHarness target of swiftsupport: runAgent, Tool, LanguageModel and AnthropicModel.

Products

Product	What it holds
FlexHarness	The agent loop, sessions behind a store protocol, the tool catalog, the permission hook
FlexHarnessProviders	Model providers: the AGL proxy (OpenAI Responses), Anthropic, OpenAI-compatible
FlexHarnessUI	The chat as SwiftUI views

Status: empty. The v1 plan is in the AGL tickets.