Frontier-Compute/zcash-mcp

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

No annotations provided, so description carries full burden. It effectively discloses supported decoding standards (ZAP1, ZIP 302, plain text, raw binary), which is crucial behavioral context for a cryptographic decoder. However, it omits error handling behavior, authentication requirements, or return value structure.

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?

Two sentences, zero waste. First sentence states core purpose immediately; second sentence enumerates specific format capabilities. Every word earns its place with no redundant 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?

Appropriate for a single-parameter utility with no output schema. Describes the decoding operation and supported formats comprehensively. Minor gap: could briefly characterize the return value (e.g., 'returns decoded string or structured data') to compensate for missing output schema.

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 coverage is 100% with the parameter already well-documented as 'hex string or base64'. The description mentions 'Zcash shielded memo field' which aligns with the parameter, but primarily relies on the schema for parameter semantics. Baseline score appropriate for high schema coverage.

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?

States specific action ('Decode') and resource ('Zcash shielded memo field'). Clearly distinguishes from sibling tools like send_shielded (which sends) or lookup_transaction (which retrieves). The mention of specific protocols (ZAP1, ZIP 302) further clarifies scope.

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?

Implies usage through supported format enumeration (ZAP1, ZIP 302, etc.), but lacks explicit guidance on when to use versus alternatives or workflow prerequisites (e.g., 'use after retrieving a transaction memo'). No 'when-not-to-use' guidance provided.

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