Blog
Notes on governed metrics
How we model, query and secure the numbers that dashboards and AI agents share. From the people building datahashi.
Agents & MCPBuild an internal data agent on certified metrics
Build an internal data agent that only answers from certified metrics via MCP, with a clear eval for same-number trust.
Strategy & comparisonsSemantic layer vs warehouse-native semantics
Contrast vendor-native semantic features with a portable serving layer that works across warehouses and agent tooling.
Agents & MCPClaude + MCP: certified metrics only
Configure Claude with MCP tools that only return certified metrics, keeping free-form SQL out of the loop.
Governance & trustEvery query is metered
datahashi records what each query scanned, so "what did this tenant cost" is one endpoint away — not a data-warehouse billing archaeology project.
Strategy & comparisons