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openpharma-org

Unofficial HPO MCP Server

get_hpo_term_path

Retrieves the complete hierarchical path from the root node to a specified HPO term, showing its ancestry in the phenotype ontology.

Instructions

Get the full hierarchical path from root to a specific HPO term

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idYesHPO term ID (e.g., HP:0001234 or just 0001234)
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the burden of behavioral disclosure. It explains that the tool returns the full hierarchical path, but omits details such as whether the path includes the term itself, the format (array or string), or any error handling. The core behavior is clear but not fully comprehensive.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, front-loaded sentence with no extraneous words. It efficiently conveys the tool's purpose.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple tool with one parameter and no output schema, the description is minimal. It lacks information about the result format, whether the term itself is included in the path, and potential error cases. While sufficient for basic understanding, it could be more complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the parameter 'id' is already well-documented. The description adds no further detail about the parameter beyond the schema. Baseline score of 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb 'Get' and the resource 'full hierarchical path' from root to a specific HPO term. It distinguishes this tool from siblings like 'get_hpo_ancestors' and 'get_hpo_parents' by specifying the full path from root.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No explicit guidance is provided on when to use this tool versus alternatives. The description does not mention prerequisites, limitations, or situations where other tools (e.g., 'get_hpo_ancestors') might be more appropriate.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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