IT Tools MCP Server

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

Annotations provide readOnlyHint: false, indicating this is not a read-only operation, which aligns with 'Generate' implying creation. The description doesn't add behavioral details beyond this, such as performance characteristics, error handling, or output format. Since annotations cover the basic safety profile, the description adds minimal value, earning a baseline score.

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 extremely concise with just three words, front-loading the core purpose without any fluff. Every word ('Generate SHA1 hash') directly contributes to understanding the tool's function, making it efficient and easy to parse.

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 low complexity (single parameter, no output schema), the description is minimally adequate. It states what the tool does but lacks context on when to use it, output format, or comparisons to siblings. With annotations covering basic behavior, it meets the bare minimum but leaves gaps in practical guidance.

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 has 100% description coverage, with the 'text' parameter clearly documented as 'Text to hash with SHA1'. The description doesn't add any additional semantic context beyond what the schema provides, such as input constraints or examples. With high schema coverage, the baseline score of 3 is appropriate.

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 'Generate SHA1 hash' clearly states the action (generate) and the resource (SHA1 hash), which is a specific cryptographic operation. However, it doesn't differentiate from sibling tools like hash_md5, hash_sha256, and hash_sha512, all of which perform similar hash generation with different algorithms. The purpose is clear but lacks sibling differentiation.

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?

The description provides no guidance on when to use this tool versus alternatives like other hash functions (e.g., hash_sha256 for more security). It doesn't mention use cases, prerequisites, or exclusions, leaving the agent to infer usage from the tool name alone. This is a significant gap in contextual guidance.

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