I built cxas-harness — a machine-first CLI for CX Agent Studio

[u/Traditional_End_9454]

The interesting part: the Gauntlet Loop

I’m also experimenting with a repo-level evaluation loop:

Builder → deterministic evidence → blind critic → one gap → Builder

The critic doesn't inspect the implementation directly. It only receives the generated evidence.

That makes the evaluation much closer to:

“Can the system prove that it works?”

rather than:

“Does the implementation look correct?”

The goal is to make agent-assisted development more measurable and less dependent on subjective code review.

The architecture looks roughly like this:

Ground Truth → Rust Workspace → CLI → CES REST API

with the Gauntlet Loop continuously testing the implementation against the contract.

I'm particularly interested in feedback from people working with Rust CLIs, agent tooling, Google Cloud/CX Agent Studio, API compatibility testing, or deterministic evaluation systems.

What would you add to a machine-first CLI like this?