COMPUTER USE / USE CASE

Computer use for portal automation

Build one adapter per portal and keep business rules above the interface layer.

01Trigger

02Agent

03Browser / desktop

04Human approval

05Outcome

Define the job

Execute a defined read or draft-preparation task in an authorized third-party portal. Normalize outputs into a shared schema while preserving portal-specific labels, identifiers, and evidence for each record.

API FIRST?

Should this use computer use at all?

Ask whether the portal provides a supported API, export, or partner integration. If it does, compare its coverage before assuming the visible interface is the only path.

API vs. computer use →

Architecture options

Known portal adapter

Use a deterministic controller for a stable navigation path. Each adapter returns explicit states such as completed, missing record, reauthentication required, and review needed.

Agent-assisted variation

Evaluate an agent for a tightly scoped navigation problem when the portal layout varies. Keep account scope, output schema, and consequential-action checks outside the model prompt.

Failure modes & approval

Where the workflow can break

An interface redesign can make a formerly correct selector point at the wrong action.
Portal status labels may differ from the internal business taxonomy.
A retry after a partially completed job can duplicate uploads or submissions.

Human approval point

Authorize the portal and record scope in advance, then review any consequential submission or newly discovered action. An inaccessible record should produce an exception rather than a broader search across accounts.

Design the handoff →

Tools to evaluate

Control framework

Budget the whole workflow

Number of portal-specific adapters
Session and layout change rate
Exception handling and monitoring

Open cost calculator

Implementation playbooks

Download invoices from vendor portals

Produce a verified invoice bundle with account, period, and duplicate checks.

Check claim status across authorized portals

Collect status evidence and route ambiguous identities or meanings to review.

Fill a form with an explicit approval boundary

Prepare the exact payload, pause at the consequential step, and verify the committed result.

RESEARCH NOTES

Sources & verification

Reviewed Sep 27, 2026. Architecture recommendations are editorial analysis; linked vendor documentation supports the underlying capability and safety facts.

How we verify evidence →