Troubleshooting

Hitachi iQ Studio User Guide

Version
1.0.x
Audience
anonymous
Part Number
MK-26HIQS001-00
ft:lastEdition
2026-03-31

Describes troubleshooting information for errors that can occur while using iQ Studio.

Incorrect or incomplete system prompt, user input, or tool outputs

  1. Open the full LLM payloads in Debug Mode. Compare the system prompt, user message, and tool outputs to your expected values.
  2. Verify that the runtime assembled these components correctly.
  3. Update the system prompt or tool descriptions as needed.
  4. Confirm that the correct knowledge collections, database rows, or tool configurations are attached.
  5. Rerun the query in Debug Mode to validate the fix.

The model ignored key instructions or lacked reasoning transparency

  1. Review the raw LLM output in the debug payload to see the model’s unprocessed reasoning.
  2. Look for signs that the model misunderstood instructions or skipped key parts of the prompt.
  3. Clarify or strengthen instructions in the system prompt.

Missing or incorrect context was passed to the model

  1. Look for evidence of:
    • Missing context, such as knowledge snippets not included.
    • Tool outputs not passed correctly.
    • Parameters summarized incorrectly in Agent Thoughts.
  2. Recheck tool configurations in the MCP Tool Library.
  3. Confirm that the agent is using the intended knowledge collections or tool settings.
  4. Rerun the query with Debug Mode on to verify that context now appears.

Agent configuration issues

  1. Compare the LLM prompt against tool outputs to ensure they were combined correctly.
  2. Identify mismatches such as missing fields, misaligned data, or skipped steps.
  3. Modify the agent prompt, reconfigure tools, or adjust wiring.
  4. Debug Mode is explicitly designed to reveal these issues.

The agent returns no results or an error message

  1. Confirm the database connection URL is valid and the database is reachable from the iQ Studio environment.
  2. Verify that the DB MCP tool is attached and shows as active on the agent's Equip page.
  3. Re-enter the database URL and click Apply to refresh the connection.

The SQL statement shown is incorrect or produces wrong results

  1. Review the generated SQL statement displayed in the response.
  2. Rephrase the natural language query to be more explicit (for example, specify column names or date ranges).
  3. Consider switching to a specialized SQL translation model if available.

The agent does not display the SQL statement used

  1. Confirm that the DB MCP server is configured to return query evidence alongside results.
  2. Check whether the system prompt instructs the agent to show its SQL output. Update the prompt if needed.

Analytical summaries are incomplete or missing data

  1. Confirm that the database contains the expected data range (1988–1991 flight records).
  2. Verify that the agent has permission to execute multiple sequential queries within a single session.
  3. Re-run the query and check whether partial results are returned that indicate a timeout or row limit issue.