PocketBase 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 mentions clearing authentication, which implies a mutation, but does not disclose behavioral traits such as whether this requires specific permissions, if it's reversible, what happens to active sessions, or any rate limits. For a mutation tool with zero annotation coverage, this is a significant gap.

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, efficient sentence with zero waste. It is front-loaded with the core action and effect, making it appropriately sized and easy to understand.

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 complexity (simple logout with no parameters) and lack of annotations or output schema, the description is minimally complete but could be improved. It covers the basic purpose but lacks details on behavioral aspects like side effects or response format, which are important for a mutation tool.

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 tool has 0 parameters, and schema description coverage is 100%, so no parameter information is needed. The description does not add parameter details beyond the schema, but with no parameters, the baseline is 4 as it adequately addresses the lack of inputs.

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 ('Logout') and the resource ('the current user'), while also specifying the effect ('clear authentication'). It distinguishes itself from sibling tools like pb_auth_login, pb_auth_refresh, and pb_auth_register, which handle authentication rather than termination.

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 when a user needs to end their session, but it does not explicitly state when to use this tool versus alternatives (e.g., no guidance on prerequisites like being logged in first) or when not to use it. The context is clear but lacks explicit exclusions or comparisons.

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