login_cpanel

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

No annotations are provided, so the description carries the full behavioral burden. It does disclose a meaningful trait — credential persistence across chats — but omits whether credentials are stored in plaintext, what happens on invalid token, whether login can fail, and that persistence is actually conditional on the save_permanently flag described in the schema, which the description presents as unconditional.

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 tight sentences with the verb and required inputs front-loaded and no wasted words. It is slightly reductive in asserting permanent saving as a fixed property rather than a default.

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?

With no annotations and no output schema, the description has to cover behavior itself, and it does cover persistence but not failure modes, whether a session must exist before other tools work, or the security implications of stored tokens. Adequate for the happy path, incomplete for an unauthenticated entry-point 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?

Schema description coverage is 100%, so all five parameters, including verify_ssl and save_permanently semantics, are already documented in the schema. The description only names the three required credentials and adds no syntax or format meaning beyond what the schema supplies; baseline 3 applies.

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?

States a specific verb+resource ('Log into cPanel') plus the three inputs required. It clearly identifies the tool's job, but does not differentiate it from siblings like get_login_status, logout_cpanel, or verify_cpanel_connection, which an agent could confuse with it.

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?

'You only have to do this once' implicitly signals first-time setup, which is useful context. However, there is no explicit guidance on when to prefer get_login_status to check state, when to call logout_cpanel, or how this relates to verify_cpanel_connection — the agent must infer all of that.

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