Opensteer

Opensteer

Opensteer is a global browser-control runtime. It exposes small CDP primitives to agents and harness packs.

Usage

opensteer -c "print(page_info())"

Python snippets run with helpers pre-imported:

opensteer -c "new_tab('https://docs.opensteer.com'); wait_for_load(); print(page_info())"

For harness code, import helpers from the installed package:

from opensteer.helpers import goto_url, js, click_at_xy, type_text, wait_for_load

Named Sessions

Use OPENSTEER_NAME to route commands to a named browser session:

OPENSTEER_NAME=linkedin opensteer -c "print(page_info())"

Remote browser sessions can be started from a Python snippet when OPENSTEER_API_KEY is set:

opensteer -c "start_remote_daemon('linkedin', profileId='bp_...')"
OPENSTEER_NAME=linkedin opensteer -c "new_tab('https://example.com')"

Interaction Skills

Generic browser mechanics live in interaction-skills/:

• connection.md
• cookies.md
• cross-origin-iframes.md
• dialogs.md
• downloads.md
• drag-and-drop.md
• dropdowns.md
• iframes.md
• network-requests.md
• print-as-pdf.md
• screenshots.md
• scrolling.md
• shadow-dom.md
• tabs.md
• uploads.md
• viewport.md

Use them when a page mechanic is tricky. Put domain-specific selectors, workflows, APIs, local databases, and task tools in the harness pack.

What Works Well

• Start with screenshots for visible state: capture_screenshot().
• Prefer coordinate clicks for visible targets: click_at_xy(x, y).
• Use js(...) for DOM inspection, extraction, and page API discovery.
• Use cdp("Domain.method", ...) for raw CDP operations not covered by helpers.
• After navigation, call wait_for_load().
• Navigate the current Opensteer-owned tab by default; use list_tabs() and switch_tab(target_id) only when the user explicitly asks for a specific existing tab.
• If a page redirects to login, stop and ask the user. Do not type credentials from screenshots.

Boundaries

Opensteer owns generic browser primitives, local attach, remote attach, cloud browser attach, and generic interaction skills.

Harness packs own domain-specific tools, selectors, workflows, storage, setup docs, and agent skills.

Source: steerlabs/opensteer — distributed by TomeVault.