Release v0.18.1 - 2026-10-31

Highlights

• Sozo rejects invalid string lengths, integer ranges, date windows, and mismatched choice weights before generating data.
• Integer ranges now support negative bounds, such as int:-10--1.

API Changes

• Changed: POST /v1/sozo/generate returns HTTP 400 for invalid schema definitions and unknown presets, with an error message identifying the problem.

SDK + MCP Changes

MCP Server

• MCP server v0.16.1 clarifies Sozo input validation in its tool description.

Migration Notes

• Handle rejected schema definitions as HTTP 400 responses instead of retrying them as server failures.
• Integer ranges must contain fewer than 2^63 values. Date-window counts must be positive and fit within a signed 64-bit nanosecond duration.