Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema descriptions already cover 100% of parameters, including that each is an alternative to the other. The description merely reinforces this with 'Identify by workflowId or exact title,' adding no new semantic detail beyond the schema, so baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.