v0.3.0

Added

• AgentQLPlugin.ExecuteQueryWithDescription(sqlQuery, resultDescription) — a variant of ExecuteQuery where the model also supplies a short description of the result set (column meanings, filters, caveats) in the same tool call. Hosts that hand the raw rows to an orchestrator can skip the final prose-generation turn entirely, cutting one model round-trip per question.
• AgentQLPlugin.LastSuccessfulResult — per-scope capture of the last successful query (CapturedQueryResult: SQL, rows, row count, optional description), so hosts no longer need to wrap ExecuteQuery to harvest verified rows for charts or structured replies. Failed queries never overwrite a prior capture; a zero-row success is captured (it is an answer, not a failure).
• SelfCorrectingChatClient recognises ExecuteQueryWithDescription as a grounding query (new ExecuteQueryWithDescriptionToolName constant), so the self-correction guard works identically with either execute variant.

Changed

• GetDatabaseSchema workflow text and the self-correction reminder now refer to "the query execution tool" generically instead of naming ExecuteQuery, since hosts may expose either execute variant.

Full Changelog: v0.2.1...v0.3.0