Vaultfire MCP Server

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

No annotations are provided, so the description carries the full burden. It discloses the tool's read-only nature ('Get') and the specific metrics returned, which is helpful. However, it lacks details on behavioral traits like rate limits, authentication requirements, error conditions, or response format, which would be valuable for a tool with no annotation coverage.

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 sentence that front-loads the purpose and efficiently lists the four key statistics. Every word contributes to understanding the tool's function without redundancy or fluff, making it highly concise and effective.

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 (one optional parameter, no output schema, no annotations), the description is reasonably complete. It clearly states what statistics are returned, which compensates for the lack of output schema. However, it could improve by mentioning response format or any limitations, but for a simple read operation, it provides sufficient context.

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 'chain' parameter fully documented (type, enum values, default). The description adds no parameter-specific information beyond what the schema provides, such as clarifying the 'native token' unit or 'bridge sync' meaning. With high schema coverage, the baseline score of 3 is appropriate as the description doesn't enhance parameter understanding.

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 specific action ('Get') and resource ('Vaultfire Protocol statistics'), listing the exact metrics returned (total registered agents, total bonds created, total active bond value, bridge sync count). It distinguishes this from sibling tools like 'vaultfire_get_agent' or 'vaultfire_get_bonds' by focusing on aggregate protocol-level stats rather than individual entities.

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 implies usage for retrieving protocol-wide statistics, but provides no explicit guidance on when to use this tool versus alternatives like 'vaultfire_discover_agents' or 'vaultfire_get_bonds'. No exclusions or prerequisites are mentioned, leaving the agent to infer context from the tool name and description alone.

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