set_license_key

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

No annotations are supplied, so the description carries the full behavioral burden. It usefully discloses that the key is session-scoped and that the file must be signed, but it does not say what happens on an invalid/expired license (error vs. silent no-op), whether an existing key is replaced, or whether the setting persists beyond the session.

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?

A single front-loaded sentence with no filler; the scope ("active session") and outcome ("unlock Pro or Enterprise skills") are stated efficiently. Slightly dense phrasing but nothing is wasted.

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 one-parameter tool with no output schema, the description covers purpose and effect adequately. However, it omits failure behavior and confirmation of what a successful call yields, which an agent would need to handle bad licenses correctly.

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 coverage is 100% and the single parameter is already well documented in the schema as a path to license.json or its raw JSON content. The description adds no further meaning about accepted formats or precedence, so the schema baseline of 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?

The description pairs a specific verb ("Set") with a specific resource ("signed ... license file") and states the effect ("unlock Pro or Enterprise skills"). That distinguishes it well from the sibling verify_license, though the distinction is implied by the verb rather than stated explicitly.

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?

"for the active session" hints at when this applies (session-scoped activation before using Pro/Enterprise skills), but there is no explicit when-to-use versus verify_license guidance and no stated prerequisites such as needing a valid signed file first. Usage is inferable but not spelled out.

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