toolkit-mcp-server: hash value

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

Annotations already indicate readOnlyHint and idempotentHint, but the description adds significant behavioral context: timing safety of compare, algorithm security levels, input encoding handling, and the fact that binary blobs need no decode round-trip. No contradictions with annotations.

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 a single well-structured paragraph that front-loads the core purpose, then systematically covers operations, algorithms, input encoding, and a canonical use case. Every sentence adds necessary information without redundancy or filler.

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 moderate complexity (5 parameters, all described in schema, output schema present, annotations provided), the description covers all key aspects: dual operations, algorithm choices with security implications, input encoding details, and a practical use case. There are no obvious gaps.

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?

Schema description coverage is 100%, each parameter has a description. The tool description adds value beyond schema by explaining the practical semantics: e.g., inputEncoding avoids decode round-trips, algorithm security warnings, and that expected is required for compare. This extra context justifies a score above the baseline of 3.

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 clearly states the tool's two purposes: generating a cryptographic digest or verifying a value against an expected digest. It uses specific verbs ('Generate' and 'verify') and identifies the resource (a cryptographic hash). The tool is easily distinguished from sibling tools (encoding, ID generation, QR, geolocate) which have completely different functions.

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 explicitly explains when to use each operation ('generate' vs 'compare') and provides critical usage warnings: compare is timing-safe, md5/sha1 are for checksum compatibility only and must not be used for security. It also gives a canonical use case (matching a download checksum), offering clear context for appropriate tool selection.

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