Marivo 0.4.11

Marivo 0.4.11 makes semantic authoring and datasource evidence more explicit for agents, while tightening typed analysis transforms and repair guidance.

Highlights

Agent-native semantic authoring now follows a smaller public contract centered on current catalogs, one coherent semantic slice, ms.load(), exact catalog.require(...), and scoped readiness. Preview and source-health checks remain explicit evidence branches rather than hidden authoring stages.
catalog.source_health(...) provides an explicit report for current source or data drift. It can check connectivity and authoritative schema/capabilities, or run bounded declared data checks without changing readiness or analysis inputs.
Datasource inspection and discovery now expose bounded contracts, named retained rows, metric preview sampling, and clearer partition/snapshot recovery. Agents can distinguish a truncated partition from semantic modeling that is still pending.
Typed analysis now exposes clearer compatibility and projection repairs for time grains, metric bindings, and transforms. Delta arithmetic also stays safe for unsigned inputs instead of wrapping on negative results.

Changed

Datasource credentials use explicit *_env references; implicit environment fallback is no longer part of datasource authoring or doctor checks.
Bounded show() and contract() guidance is more consistent across datasource, semantic, and analysis results. Custom analysis is an explicit terminal exit, with the typed chain and its evidence boundary kept clear.
The packaged marivo-semantic and marivo-analysis skills now focus on the current modeling, evidence, repair, and handoff boundaries instead of duplicating a legacy operator ladder.

Fixed

Unsigned delta calculations no longer overflow when the change is negative.
Analysis transforms preserve the frame family and reject incompatible metric or time-axis operations with actionable repairs.
Datasource and snapshot recovery paths now preserve the exact bounded scope and report whether data was truncated, retained, or still requires semantic modeling.

Documentation

The semantic and analysis guides document explicit source health, snapshot and partition recovery, metric preview sampling, time-grain compatibility, structured transform repairs, and terminal custom-analysis boundaries.

Installation

curl -fsSL https://marivo.io/install.sh | bash

In mainland China, use:

curl -fsSL https://marivo.io/install-marivo-cn.sh | bash

For manual installation:

pip install marivo

Install the backend extra for each datasource you plan to use. Marivo 0.4.11 requires Python 3.10 or newer.