flexharness-rust

The FlexHarness agent harness in Rust, to run inside native apps. The first is biq (biq.io/rustapp), whose assistant panel runs it in process: no Node runtime and no server.

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. v1 ports a deliberately small part of it.

Crates

Crate	What it holds
flexharness	The agent loop, sessions behind a store trait, the tool catalog, the permission hook
flexharness-providers	Model providers: the AGL proxy, Anthropic, OpenAI-compatible
flexharness-egui	The chat as egui widgets drawn into a host's Ui, with the host's tokens. It doesn't use eframe or own an event loop.

Status: empty. The v1 plan is on AGL-990 and in the AGL tickets linked there.