download-platform-invoices

# Download Platform Invoices Use this skill when the user wants monthly SaaS invoice PDFs collected from billing portals or billing APIs for bookkeeping handoff. ## Output Contract Each fetched invoice must produce one normalized JSON record and the original official PDF. The record shape is: ```json { "vendor": "openai", "invoice_no": "E-2026-03-001", "period": "2026-03", "issue_date": "2026-04-01", "due_date": "2026-04-15", "net": 123.45, "vat_rate": 0.19, "vat": 23.45, "gross": 146.9, "currency": "EUR", "pdf_path": "runs/2026-03/openai/E-2026-03-001.pdf", "source_url": "https://platform.openai.com/account/billing", "checksum_sha256": "64 lowercase hex characters" } ``` Validate records with the colocated `schema.json` contract. Keep `pdf_path` relative to the invoice run directory. ## Adapter Contract Adapters follow this shape: ```ts login(credentials) -> session listInvoices(session, { since }) -> InvoiceMeta[] download(session, invoice) -> Uint8Array ``` The runtime implementation is colocated with this skill: - Stripe API adapter - browser-driver scrape adapters for GitHub, OpenAI, Anthropic, Atlassian, and LinkedIn - native API adapters for Google Ads InvoiceService, AWS Invoicing, Azure Billing invoices, and GCP Cloud Billing account authorization. Google does not expose invoice PDF listing/download in the public Cloud Billing REST API, so the GCP adapter uses the browser document driver for the Documents page after API a...