Pet Signal Guide uses desk research first. A page may review product documentation, official product pages, privacy policies, support pages, current terms, public authority guidance, reputable independent sources, and clearly labeled editorial inference.
We do not describe a product as tested unless there is a page-specific hands-on protocol and evidence record. Our evidence labels separate early ideas, single-source notes, corroborated desk research, hands-on observation, and specialist review.
Every article should state what is known, what is unknown, what changed recently when relevant, and what would trigger an update.
Pre-launch note: this page occupies the approved PCP-009 canonical URL, but it is only a placeholder until the PCP-001 evidence packet has been completed and the methodology is reconciled against the actual workflow.