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Browser login + X/Twitter posting

When a site requires login, sign in manually in the host browser profile (the pllan browser). Do not give the model your credentials. Automated logins often trigger anti‑bot defenses and can lock the account. Back to the main browser docs: Browser.

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Which Chrome profile is used?

Pllan controls a dedicated Chrome profile (named pllan, orange‑tinted UI). This is separate from your daily browser profile. For agent browser tool calls:
  • Default choice: the agent should use its isolated pllan browser.
  • Use profile="user" only when existing logged-in sessions matter and the user is at the computer to click/approve any attach prompt.
  • If you have multiple user-browser profiles, specify the profile explicitly instead of guessing.
Two easy ways to access it:
  1. Ask the agent to open the browser and then log in yourself.
  2. Open it via CLI:
pllan browser start
pllan browser open https://x.com
If you have multiple profiles, pass --browser-profile <name> (the default is pllan).
  • Read/search/threads: use the host browser (manual login).
  • Post updates: use the host browser (manual login).

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Sandboxing + host browser access

Sandboxed browser sessions are more likely to trigger bot detection. For X/Twitter (and other strict sites), prefer the host browser. If the agent is sandboxed, the browser tool defaults to the sandbox. To allow host control: 
{
  agents: {
    defaults: {
      sandbox: {
        mode: "non-main",
        browser: {
          allowHostControl: true,
        },
      },
    },
  },
}
Then target the host browser: 
pllan browser open https://x.com --browser-profile pllan --target host
Or disable sandboxing for the agent that posts updates.