Stopline v0.1.0 — experimental browser-agent decision gate
Stopline v0.1.0
Stopline is an experimental decision gate for browser agents. It separates model classification from deterministic authorisation: hard rules and policy code decide whether a proposed action is allowed, requires a human, or is blocked.
This initial source release includes:
- the TypeScript gate and policy implementation
- a 49-case labelled evaluation across common browser surfaces
- a repeatable Playwright demo and local fixture site
- JSONL evidence logging
- Jev and local Laya backend paths
- policy tests and setup documentation
The evaluation is an initial measurement on hand-labelled cases. This release is not a production safety certification, and the demo uses a fixed script rather than an LLM planner.
See the README for setup, evaluation commands, limitations, and the related review exercise.