Repeatability
High
The task follows a fixed pattern: introspect schema via INFORMATION_SCHEMA, emit diagram syntax, flag missing indexes. The same logic applies to any MySQL database with minor parameterization.
Ambiguity Tolerance
High
Success criteria are crisp: a runnable Node.js script, valid PlantUML or Mermaid output, detected foreign keys, and a printed recommendations list. A human can verify all four in minutes.
Data & Tool Availability
Medium
The agent needs database credentials and network access to the MySQL instance, or at minimum a schema dump. If those are provided, the task is fully executable; if not, the agent can only produce a template script.
Error Cost
Low
The script is read-only — it queries INFORMATION_SCHEMA and generates text output. No data is modified, so mistakes are trivially reversible by editing or re-running the script.
Human Judgment Required
Low
Index recommendations based on cardinality statistics and foreign key detection are algorithmic. A human review of the final recommendations is good practice but not strictly required for the script to be useful.