Browser automation

Reliable Browser Trajectories for Repeatable Automation

Model browser work as observable, scheduled actions with bounded transitions and replayable evidence.

6 min readWeles engineering

A flow is a sequence of decisions

Reliable browser automation observes state, chooses a permitted action, executes it, and records the transition instead of treating a session as one opaque script.

Scheduler-driven browser trajectories on fingerprint-hardened Chromium and Firefox, built for resilient, human-shaped automation.

Design for changing pages

Each action needs a readiness condition, a bounded result, and enough captured context to diagnose why the expected transition did not occur.

  • Schedule each browser action
  • Run a human-shaped Chromium or Firefox trajectory
  • Replay cached flows on repeat runs

Replay only verified paths

Replay should remain conditional on the page state it was created for, and automation must stay limited to authorized workflows.

  • Engine-level fingerprint defense on Chromium and Firefox
  • Scheduler-driven per-action trajectories
  • Flow-replay cache for faster repeat runs

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