Thin browser harness

Thin browser harness is a thin browser controller that speaks the raw browser protocol plus a skill file.¹² It avoids wrapping the model’s browser tools in a thick layer.²

Overview#

The agent edits helpers when a call is missing and then reruns.² The package core stays protected, and an optional bridge only exposes those helpers.¹

Mechanism#

1. The model receives the raw protocol and a short skill file.¹²
2. Helpers stay thin, and the agent adds a missing function and reruns.²
3. A long-running process holds the connection open.²
4. The package core is protected, and edits land in an agent workspace.¹
5. Helpers are exposed through a bridge only as a thin adapter.¹

Applications#

The controller is relevant when browser work is getting wrapped in a god-tool instead of a raw protocol and a skill.

Limitations#

The project’s file layout is not a required structure for other repositories, and a hosted browser cloud is not required.¹

See also#

• Thin harness, fat skills – the architecture
• Skillify authoring – skills

References#

Footnotes#

1. https://github.com/browser-use/browser-harness ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶

2. https://x.com/gregpr07/status/2047358189327520166 ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶