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

'Nothing in HubSpot changes' usefully scopes the blast radius: only the local token is dropped, no remote data is touched, which reconciles the destructiveHint=true with a safe-feeling operation. 'Free' is cryptic (no cost? no API quota?) and the description does not mention reversibility, even though idempotentHint is already set.

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?

Three short fragments are front-loaded and waste no space, but 'Free.' is opaque and occupies a third of the text, and the telegraphic style trades clarity for brevity.

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 zero-param, no-output-schema tool the description covers the essentials of what is removed and that HubSpot itself is untouched. It omits how an agent would re-establish the connection afterwards and whether any local state (mappings, cached records) is also discarded.

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 takes zero parameters and the schema is an empty object with additionalProperties=false, so there is nothing for the description to disambiguate. A 4 is the baseline for a no-argument tool.

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 says 'Forget the private app's token', which implies credential removal rather than an explicit 'disconnects the integration', so the agent must infer the action from the title. It distinguishes itself reasonably from hubspot_connect/hubspot_get, but the phrasing is figurative rather than a precise verb+resource.

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 statement of when to use this versus reconnecting via hubspot_connect, no precondition (e.g. must be connected first), and no note on consequences for existing synced records. The agent gets no routing guidance beyond the tool name.

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