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supply-chain-mcp-server

by badchars

deps_project

Retrieve project details from deps.dev using a repository URL for supply chain security assessment.

Instructions

Get project information from deps.dev by repository URL (e.g. github.com/expressjs/express)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
urlYesRepository URL without https:// prefix, e.g. "github.com/expressjs/express"
Behavior2/5

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

No annotations are provided, so the description carries full burden. It does not disclose the nature of the operation (read-only), what information is returned, or any side effects. The agent is left to assume basic GET behavior.

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?

A single, clear sentence with no fluff. The example is front-loaded and the entire description is highly efficient.

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?

For a simple tool with 1 parameter and no output schema, the description is sufficient to use the tool. However, it lacks behavioral details that would be helpful for an agent, such as typical output structure.

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

Parameters4/5

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

Schema coverage is 100% with a description for the 'url' parameter. The description adds value by specifying the format (without https:// prefix) and providing an example, which aids correct invocation beyond the schema alone.

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 specifies the verb 'Get', the resource 'project information from deps.dev', and the input method 'by repository URL'. The example distinguishes it from sibling tools like deps_package (which takes a package name).

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

Usage Guidelines3/5

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

The description implies usage when you have a repository URL, but does not explicitly state when to use this tool versus alternatives (e.g., deps_package). No when-not or exclusion guidance is provided.

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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