Generation is not release authority in browser agents

[SemeAIPletinnya]

I’ve been experimenting with external runtime release-control patterns for browser agents.

One thing I find interesting in Stagehand-style systems:

generation often becomes implicit release authority.

Meaning:

• the model generates
• the action executes
• validation happens after execution

Instead, I’ve been testing a separate runtime decision layer between:
candidate generation
→ execution authorization

With tri-state mediation:

• PROCEED
• NEEDS_REVIEW
• SILENCE

The goal is not blocking agents entirely.
The goal is introducing a lightweight runtime review boundary before unsafe or unstable execution paths.

Curious whether anyone here has explored something similar around:

• action mediation
• execution approval
• runtime release-control
• unsafe-path interception

I recently built a small live runtime demo around this idea:
https://silence-as-control.vibenest.net/
The demo exposes runtime traces, review-band bounds, and policy-override visibility for release decisions.