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

With no annotations provided, the description carries the full behavioral burden. It discloses that the tool produces a report with a remediation list, which implies a read-only analysis of the boolean inputs rather than active probing or mutation. However, it doesn't explicitly state that it does not execute commands or contact the live server, and it doesn't describe the report's format or how inputs map to outputs. Adequate for a passive analysis tool, but not rich.

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 with no filler; the verb and framework are front-loaded in the first clause, followed by a compact list of report coverage and the deliverable. It earns the words it uses, though it could tighten the category list into actual parameter mapping. Efficient and well-ordered.

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?

For a tool with nine parameters, no required fields, no output schema, and no annotations, the description conveys the purpose and deliverable but leaves gaps: it doesn't explain whether all booleans must be answered, what the output structure looks like, or how the audit is computed from the inputs. The report-topics list partially covers this, but an agent still lacks full clarity on the invocation contract.

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%, so the baseline is 3; the schema already documents all nine boolean parameters. The description adds only a thematic echo of the report categories (authentication, secret exposure, etc.) that loosely correspond to the parameters, without explaining how each flag feeds into the audit. It provides no additional meaning beyond the schema, so the baseline 3 stands.

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 uses a specific verb ('Audit') tied to a concrete resource (an MCP server) and a named framework (OWASP MCP Top 10). It enumerates the report's coverage areas (authentication, path traversal, command injection, secret exposure, supply-chain risk) and the deliverable (a concrete remediation list). This clearly differentiates it from the calculation-heavy sibling set and the related score_mcp_server_trust, since nothing else in the list performs an OWASP-based audit.

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 intended use — auditing a server's security posture against OWASP — is clearly implied, and the verb 'Audit' sets the context. However, the description never distinguishes this tool from its close sibling score_mcp_server_trust, which targets the same domain, nor does it state when one should be chosen over the other. No exclusion criteria or alternatives are named, leaving the routing decision to the agent.

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