gde-ap-agent

Conversational front door for the Accounts-Payable workflow. Chats with the user about invoices and AP policy, then transfers to the deterministic `ap-pipeline` SequentialAgent when an invoice needs processing. Never reproduces extracted invoice fields itself — the pipeline owns that.

Invoice field-extraction specialist for Accounts Payable. Reads the already-parsed content of an invoice document and returns clean, typed business fields (vendor, line items, totals, GL codes). Operates on a second layer above the AILANG Parse / DocParse step that runs at ingest time — does NOT re-parse the document.

Action specialist for Accounts Payable. Takes a validated invoice and either posts it to the ERP ledger or routes it to a human approval queue, then emits the final Invoice Review Card to the workspace pane. Final stage of the `ap-pipeline` SequentialAgent.

Grounded validation specialist for Accounts Payable. Checks extracted invoice fields against the vendor master, open purchase orders, and the tax/approval policy indexed in Vertex AI Search. Detects duplicates, PO mismatches, out-of-policy line items, and incorrect tax. Use after extraction, before any posting decision.

Deterministic Accounts-Payable processing pipeline. Walks Extract → Validate → Post in sequence via ADK's SequentialAgent. No LLM at the workflow level — the order is code, not prose. Use as a sub-skill of ap-orchestrator; not intended for direct user invocation.