join_node

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. 'Join' implies a mutating action, but the description does not explain the effect on membership, whether the action is reversible, whether it is idempotent, or what happens if the user already belongs to the node.

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 sentence with no filler and the main action is front-loaded. It is appropriately brief for a one-parameter tool, though the terseness limits the amount of useful context conveyed.

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?

This is minimally viable: an agent can infer that it should call this tool with a node_id to join a node/community. However, with no annotations and no output schema, the description leaves gaps around expected behavior, prerequisites, and possible error conditions.

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 schema provides only the parameter name and type (node_id as integer), with 0% description coverage. The description adds context by identifying the node as a nested community and implying that node_id is the target node, which is close to sufficient for a single integer parameter, though it does not explicitly define valid ID values or scope.

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 states a specific action ('Join') and a resource ('a node', glossed as a nested community). It is distinguishable from sibling tools like leave_node and create_node, though it does not explicitly name alternatives or define what joining entails.

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?

There is no guidance on when to use this tool versus alternatives such as leave_node or create_node. No preconditions, exclusions, or authentication requirements are mentioned, so the agent must infer usage solely from the verb.

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