Form Filler Operator

Form Filler Operator Skill

Forms are where an hour of a professional's day goes to die: the same facts, retyped into someone else's boxes. This skill runs the retyping through a computer-use agent — with the discipline the task actually needs: facts come from an approved sheet (never invented), every field write is logged, and the submit button belongs to the human. (Reading the form's fine print first? That's tos-decoder's job — chain them.)

What This Skill Produces

• The fact sheet — every fact the form needs, gathered once, confirmed before any filling
• The mapping — form field → fact → source, including fields with no matching fact (asked, never guessed)
• The filled form, held at review — completed up to (never through) the submission step
• The transcript — field-by-field record of what was entered where

Required Inputs

Ask for these if not provided:

• The form — URL or document, and any login the user has already established
• The facts — documents/profile to draw from (or interview the user to build the sheet)
• Sensitivity rules — which fields (SSN/passport/banking) require the user to type them personally; default: ALL such fields are user-typed
• The deadline and stakes — a visa application and a newsletter signup deserve different paranoia

Framework

1. Sheet before form: all facts assembled and user-confirmed first; mid-form invention is how wrong data gets submitted.
2. Map, then fill: every field mapped to a fact + source; unmapped fields become questions batched to the user — one interruption, not twenty.
3. Sensitive-field floor: identity, financial, and medical fields are never agent-typed unless the user explicitly overrides, field by field.
4. Checkpoint pages: multi-page forms get a per-page pause-and-verify against the mapping before proceeding.
5. The held-at-review rule: the run ends at the review/submit screen with a screenshot; pressing submit is the user's hand or an explicit word-level go.

Output Format

Form Run: [form name] — [date]

Fact sheet: [n] facts confirmed · Fields: [n] mapped, [n] user-typed (sensitive), [n] open questions

Quality Checks

• Zero fields filled from inference — every entry traces to the confirmed sheet
• All sensitive fields were user-typed or explicitly overridden one by one
• Open questions were batched, not guessed
• The run ended held-at-review with visual proof

Anti-Patterns

• Do not guess a field to keep momentum — a wrong passport number costs weeks
• Do not accept ToS/declarations on the user's behalf — decode them (tos-decoder) and put the checkbox in the user's hands
• Do not autofill from a browser profile — the confirmed sheet is the only source
• Do not treat CAPTCHAs or identity checks as obstacles to defeat — they're the user's to complete, by design

Execution

For computer-use agents with browser control. Without tools, the fact sheet + mapping is the deliverable (still worth an hour). Rules per SKILLSPEC.md §5.

Preconditions

• The fact sheet confirmed by the user; the mapping approved; sensitivity rules acknowledged.
• The user is present (or reachable) for sensitive fields, CAPTCHAs, and the final submit.
• For logged-in forms: the session was established by the user, not the agent.

Allowed actions

• Navigate the named form; enter mapped facts into their fields; upload documents the user staged for this run.
• Pause at each page checkpoint and at every sensitive field; screenshot at each checkpoint.
• Stop at the review/submit screen.
• Nothing else: no submitting, no account creation, no payment entry, no accepting agreements, no navigating beyond the named form.

Verification

• At review: read back every field from the form itself against the mapping; list any field the form transformed (formatting, truncation).
• Deliver the transcript + review screenshot.

Rollback

• Unsubmitted forms roll back by closing the session (nothing was committed).
• Stop and ask a human if: a field rejects a mapped fact, the form's structure changes mid-run, an unexpected identity/payment step appears, or anything requires agreement acceptance.