Datus Files

New Features

• SQL Lineage Analysis - /init statically analyzes dependencies and joins in SQL scripts and SQL embedded in Python DAGs. It combines project documentation with database schema checks to generate an AGENTS.md project map and knowledge files for each business domain. #1471 Init

Enhancements

• Dosi Embedded Directly in the Agent - The Agent pins dosi-engine==0.1.13 to handle metric discovery, querying, attribution, validation, and Explorer editing. External semantic adapter selection and the legacy gen_metrics / gen_semantic_model workflows are removed. #1475 #1503 Dosi Semantic Engine
• Initialization Reads Schema Metadata and Writes Sourced Facts - /init now reads only schema metadata: table lists, column information, and DDL. It no longer queries table data. Conclusions that require inference appear as pending questions at the end of the reply and are written only after you confirm them. The bundled skill also replaces fixed steps with concise, goal-oriented guidance. #1504 Init
• More Complete Metric Filters, Parameter Discovery, and Pagination - context_filter controls the population before aggregation and window calculations. get_metric returns parameter types, defaults, and allowed values. Result pagination accounts for both row count and content size, reducing oversized responses from wide rows. #1481 #1488 #1478 Metrics
• Broader MCP Tool Coverage and Policy Enforcement - MCP adds tools for semantic queries, documentation search, date parsing, read-only file access, and database migration assistance. MCP calls apply policy transformations, and file access enforces strict mode. The duplicate context_search_tools.get_metrics is removed in favor of semantic_tools.get_metric. #1470 #1479 MCP Integration. Dedicated documentation for registering the new tools is not yet available.
• Standalone Web Pages Upgraded to 2.0.x and Packaging Fixed - Chatbot and Artifact Renderer use ~2.0.0, with React loading completed. Packaging failures caused by Artifact file API changes are fixed, and nightly page validation and failure classification are updated. #1495

Bug Fixes

• Subject Tree Stays Consistent With Semantic YAML - Directories containing metrics can now be deleted. A new reconcile API synchronizes indexes after files are edited, moved, or deleted, removing stale metrics and directories left empty by the operation. #1464
• Session History, Interaction Recovery, and User Isolation - Session history restores completed ask_user questions and answers, subagent execution steps, and saved tool durations. Subsessions are isolated by user and parent session, an empty session_id correctly creates a new session, and expired interactions return clear errors. #1462 #1472 #1473 #1476 #1499
• Database Dialect Skills Follow the Bound Connection - Dialect skills are injected automatically only into nodes with database tools bound. Switching dialects or adding or removing database tools refreshes the system prompt snapshot, preventing reuse of prompts from an old connection. #1496