Skip to main content
Glama

onto_drift

Detect ontology version drift by comparing two inline Turtle documents. Returns added and removed terms, likely renames with confidence scores, and drift velocity.

Instructions

Detect drift between two ontology versions. Returns added/removed terms, likely renames with confidence scores, and drift velocity.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
version_aYesFirst version as inline Turtle
version_bYesSecond version as inline Turtle
Behavior3/5

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

With no annotations, the description carries the burden. It discloses that the tool returns added/removed terms, renames with confidence, and drift velocity, implying a read-only analysis. However, it does not confirm lack of side effects or mention any permissions needed.

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 sentence that front-loads purpose and return details. Every word contributes value without redundancy.

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?

The tool has two parameters with good schema descriptions, and the return behavior is summarized. However, it lacks context on input format constraints, size limits, or examples, which would be useful for a detection tool.

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?

Input schema coverage is 100% with descriptions for both parameters specifying they are Turtle strings. The description adds no further meaning beyond the schema, meeting the baseline for complete schema coverage.

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

Purpose4/5

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

The description clearly states the verb 'Detect' and resource 'drift between two ontology versions', and lists return types. It distinguishes from siblings like onto_diff by focusing on drift (including renames and velocity), but does not explicitly differentiate.

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 guidance is provided on when to use this tool versus alternatives like onto_diff or onto_align. The description omits context such as prerequisites or constraints on input size or validity.

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

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/fabio-rovai/open-ontologies'

If you have feedback or need assistance with the MCP directory API, please join our Discord server