BrowserOS fill-form

Intelligently fill web forms using provided data — handles text fields, dropdowns, checkboxes, radio buttons, and multi-step forms. Use when the user asks to fill out, complete, or submit a form.

install
source · Clone the upstream repo
git clone https://github.com/browseros-ai/BrowserOS
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/browseros-ai/BrowserOS "$T" && mkdir -p ~/.claude/skills && cp -r "$T/packages/browseros-agent/apps/server/src/skills/defaults/fill-form" ~/.claude/skills/browseros-ai-browseros-fill-form && rm -rf "$T"
manifest: packages/browseros-agent/apps/server/src/skills/defaults/fill-form/SKILL.md
source content

Fill Form

When to Use

Activate when the user asks to fill out a form, complete an application, enter data into fields, or submit information on a web page.

Steps

  1. Collect the data to fill. Ask the user for the information if not already provided. Organize it as key-value pairs.

  2. Take a snapshot using

    take_snapshot
    to see the form fields and understand the layout.

  3. Map data to fields. Match the user's data keys to form field labels. Handle common variations:

    • "Name" may map to "Full Name", "Your Name", or separate "First Name" + "Last Name" fields
    • "Phone" may map to "Phone Number", "Mobile", "Tel"
    • "Address" may need to split into Street, City, State, Zip
  4. Fill fields in order. For each field:

    • Text inputs: Use
      fill
      with the field selector and value
    • Dropdowns/selects: Use
      select_option
      with the appropriate value
    • Checkboxes: Use
      check
      to toggle on/off
    • Radio buttons: Use
      click
      on the correct option
    • Date pickers: Try
      fill
      first; if that fails, interact with the date picker UI using
      click
    • File uploads: Use
      upload_file
      for attachment fields
  5. Handle multi-step forms. After filling visible fields:

    • Look for "Next", "Continue", or "Step 2" buttons
    • Use
      click
      to advance
    • Take a new snapshot to see the next step's fields
    • Repeat the fill process
  6. Review before submission. Take a final

    take_snapshot
    and present the filled form to the user for confirmation before clicking Submit.

Tips

  • Fill fields top-to-bottom, left-to-right to match natural tab order.
  • For auto-complete fields (like address), type slowly and wait for suggestions to appear, then select.
  • If a field has validation errors after filling, read the error message and adjust the value.
  • Never submit payment forms without explicit user confirmation.
  • For CAPTCHA fields, inform the user they need to complete it manually.