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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so safety is covered. The description adds real behavioral context beyond that: name and role derive from the shared account and are null when using an organization API key, and the plan is a global entitlement. That conditional return behavior is not derivable from the schema or annotations.

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 sentences, front-loaded with the purpose and return fields, then the conditional null behavior. Dense but each sentence carries information; no filler.

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 output schema, the description does the work of describing the return shape (name, role, plan) and the API-key edge case. An agent has enough to invoke it correctly and interpret results, though it could say more about error cases when the id is invalid or inaccessible.

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% for the single organization_id parameter, so the schema already documents it as the 'Active organization ID'. The description's 'by id' phrasing adds nothing beyond that, making the baseline 3 appropriate.

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 ('open') and resource ('an organization by id') and enumerates what it returns: name, your role, and the CommsHarbor plan. It is distinguishable from siblings like commsharbor_me or commsharbor_context, though it never names those alternatives.

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?

'This is how a workspace is opened' implies the tool is the entry point for starting work in an organization, which is useful context. However, there is no explicit statement of when to use this versus commsharbor_me, commsharbor_context, or the plural listing siblings, and no prerequisites or exclusions.

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