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The following commit(s) were added to refs/heads/master by this push:
new 5fa70bdbd82 fix(mcp): add guardrails to prevent LLM artifact
generation (#38391)
5fa70bdbd82 is described below
commit 5fa70bdbd822be025bacae01c8e3c3508b38c3bc
Author: Amin Ghadersohi <[email protected]>
AuthorDate: Tue Mar 10 09:51:23 2026 +0100
fix(mcp): add guardrails to prevent LLM artifact generation (#38391)
Co-authored-by: Claude Opus 4.6 <[email protected]>
---
superset/mcp_service/app.py | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/superset/mcp_service/app.py b/superset/mcp_service/app.py
index a26167151f0..43d4723fb94 100644
--- a/superset/mcp_service/app.py
+++ b/superset/mcp_service/app.py
@@ -156,6 +156,19 @@ CRITICAL RULES - NEVER VIOLATE:
- Parameter name reminders: open_sql_lab_with_context uses "sql" (not "query"),
execute_sql uses "sql" (not "query").
+IMPORTANT - Tool-Only Interaction:
+- Do NOT generate code artifacts, HTML pages, JavaScript snippets, or any code
intended
+ for the user to run. All visualization, data retrieval, and authentication
are handled
+ by the provided MCP tools.
+- Always call the appropriate tool directly instead of writing code. For
example, use
+ generate_chart to create visualizations rather than generating plotting code.
+- When a tool returns a URL (chart URL, dashboard URL, explore link, SQL Lab
link),
+ return that URL to the user. Do NOT attempt to recreate the visualization in
code.
+- Do NOT generate HTML dashboards, embed scripts, or custom frontend code. Use
+ generate_dashboard and add_chart_to_existing_dashboard for dashboard
operations.
+- If a user asks for something the tools cannot do, explain the limitation and
suggest
+ the closest available tool rather than generating code as a workaround.
+
General usage tips:
- All listing tools use 1-based pagination (first page is 1)
- Use get_schema to discover filterable columns, sortable columns, and default
columns
