---
name: browser
description: Choose browser identity, operate websites/saved tabs, and request sign-in or a browser profile.
---

# Opensteer Browser

Use Browser Sessions for website interaction and saved pages. For account/API work, use opensteer:integrations unless the person chose the website or no applicable integration exists. The Host owns sessions, profiles and grants; Browser Harness operates pages.

Choose the identity yourself, then observe the exact page: Guest for signed-out work, a listed profile that fits for anything done as the person, and `browser_profile_request` only when none fits. Only the person creates or grants profiles. Profile names do not prove a website account. Never substitute Guest when a profile fails to open, or sign in there for work the person expects to keep.

With full access, `browser_profile_write` lists profiles and grants, renames or deletes profiles, clears history or remembered sites, and revokes grants directly. Request sign-in with `sign_in`; never read credentials, collect MFA codes or manage sign-in sessions yourself.

Use the supplied Browser Harness for page operations. Preserve the person's pages and arrangement, and inspect the outcome before repeating input that may have happened.

- Read [identity](references/identity.md) before choosing, opening or requesting a profile or session.
- Read [sign-in](references/sign-in.md) when a website needs authentication.
- Read [tabs and Show](references/tabs-and-show.md) when finding, organizing, using an included page or showing one to the person.
- Read [page API](references/page-api.md) before writing Harness code or handling page input, uploads, sizing or dialogs.