Update specific prop data in ProPresenter presentations by providing the prop ID and new data values to modify presentation elements.
Update a specific prop
| Name | Required | Description | Default |
|---|---|---|---|
| id | Yes | The ID of the prop | |
| prop | Yes | The prop data to set |
Changes observed during successful MCP inspections.
v1.0.1Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are present, so the description must stand alone. It only hints at mutation ('Update') without detailing side effects, permissions, or how the update interacts with existing data.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is very short (4 words) and front-loaded, but it could be more informative without adding length. It earns its place but offers minimal value.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (nested objects, no output schema, many siblings), the description is grossly insufficient. It omits crucial context such as how the update is applied (patch vs. replace), allowed prop structure, and return behavior.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema covers 100% of parameters, so the baseline is 3. The description adds no extra meaning beyond what the schema provides; 'prop data to set' is redundant with the schema description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description 'Update a specific prop' clearly states the verb and resource, but it lacks specificity compared to sibling tools like props_set_collection. It does not clarify what distinguishes setting a prop from other prop operations.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is provided on when to use this tool versus alternatives. There is no mention of prerequisites or conditions for updating a prop.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.