Notes on governed semantic layers, from the people building datahashi.https://hashi-www.pages.dev/https://hashi-www.pages.dev/blog/2026-02-18-metering-every-query/https://hashi-www.pages.dev/blog/2026-02-18-metering-every-query/datahashi records what each query scanned, so "what did this tenant cost" is one endpoint away — not a data-warehouse billing archaeology project.Wed, 18 Feb 2026 00:00:00 GMThttps://hashi-www.pages.dev/blog/2026-01-15-introducing-datahashi/https://hashi-www.pages.dev/blog/2026-01-15-introducing-datahashi/Same metric for humans and AI agents — without hallucinated SQL. A governed semantic layer you author as YAML, publish as an immutable artifact, and query over REST or MCP.Thu, 15 Jan 2026 00:00:00 GMT