Join Swarm cluster

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

Annotations are all false, so description must disclose behavior. It only states 'Join' but doesn't mention outcomes, side effects (e.g., node becomes manager), error conditions, or idempotency. Lacks detail expected for a state-changing operation.

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?

Single sentence that is front-loaded and contains no unnecessary words. Every word conveys purpose efficiently.

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?

Despite 100% schema coverage, the description misses important context: no mention of return value or output, no error handling, no prerequisites (e.g., running Docker, valid token from manager). Incomplete for a cluster-joining operation.

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 baseline is 3. The description adds no extra meaning beyond what the input schema already provides for each parameter.

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 'Join an existing Docker Swarm cluster' uses a specific verb 'Join' and resource 'Docker Swarm cluster', clearly distinguishing it from siblings like 'arcane_swarm_init_cluster' (initialize) and 'arcane_swarm_leave_cluster' (leave).

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?

No guidance on when to use this tool vs. alternatives (e.g., init_cluster, leave_cluster). No prerequisites, conditions, or context for when not to use it.

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