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get_capability

Check a capability's full details—version, size, updates, license, source, and how to obtain it—before installing. Use to verify prerequisites and avoid errors.

Instructions

Full detail for one capability by id: version, package size, last update, source repository, licence-relevant facts, and exactly how to obtain it. Call this before installing anything.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idYesCapability id, e.g. 'a-stock-data'. Get it from search_capabilities.
Behavior4/5

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

Since no annotations are provided, the description carries full burden. It discloses the output contents (version, repository, license facts, etc.) and implies a read operation via the tool name 'get.' Does not explicitly declare read-only or mention side effects, but is fairly transparent.

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, information-dense sentence: it lists the output contents and gives a clear usage directive. No filler or redundancy.

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

Completeness4/5

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

Given the simple tool (1 param, no output schema, no annotations), the description covers purpose, usage, and output details. It does not explain potential errors or explicitly confirm read-only nature, but overall is sufficient for an agent to use it correctly.

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 coverage is 100% for the single param with a description already stating 'Get it from search_capabilities.' The tool description does not add new parameter semantics beyond what the schema provides, meeting the baseline for high coverage.

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 it provides 'full detail for one capability by id' and lists specific contents (version, package size, etc.), distinguishing it from sibling tools like search_capabilities which likely return a list.

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

Usage Guidelines4/5

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

Explicitly advises to 'Call this before installing anything,' providing a clear when-to-use instruction. The schema also notes the id should come from search_capabilities, implying a prerequisite. No explicit alternatives or when-not cases, but the context is sufficient.

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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