feat: add MCP tool annotation to execute_sql tool #78
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Add ToolAnnotations to the execute_sql tool to improve LLM decision-making about tool safety characteristics: - readOnlyHint: False - tool can execute INSERT, UPDATE, DELETE queries - destructiveHint: True - tool can execute DROP TABLE, DROP DATABASE queries This helps MCP clients (like Claude) understand that this tool can modify and potentially destroy data, prompting appropriate caution. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
Add MCP tool annotations to the
execute_sqltool to help LLM clients understand the tool's safety characteristics.Changes
ToolAnnotationsimport frommcp.typesexecute_sqltool:title: "Execute SQL"readOnlyHint:False- tool can execute INSERT, UPDATE, DELETE queriesdestructiveHint:True- tool can execute DROP TABLE, DROP DATABASE queriesWhy This Matters
The
execute_sqltool can run any SQL query, including:SELECT,SHOW,DESCRIBEINSERT,UPDATE,DELETEDROP TABLE,DROP DATABASE,TRUNCATEWithout annotations, MCP clients (like Claude) have no way to know the tool can modify or destroy data. Adding
destructiveHint: Truehelps the LLM exercise appropriate caution when using this tool.Test Plan
ToolAnnotationsclass🤖 Generated with Claude Code