conversations_external_invite_permissions_set

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

The description only states it 'sets permissions' without detailing behavioral traits like whether changes are reversible, if notifications are sent, or the effect on existing access. Schema parameter descriptions partially compensate by explaining upgrade/downgrade, but overall transparency is minimal.

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?

The description is a single sentence with no unnecessary words. It is front-loaded but could benefit from a bit more context without sacrificing conciseness.

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?

Given the complexity of setting permissions in a Slack Connect channel, the description lacks important context: it does not explain the effect of upgrade vs. downgrade, the required channel state, or how it relates to sibling tools. The existence of an output schema does not compensate for missing high-level context.

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 input schema covers 100% of parameters with clear descriptions. The tool description adds no additional meaning beyond what the schema already provides, so the baseline score of 3 is 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?

The description clearly states the tool sets external invite permissions for a Slack Connect channel, using a specific verb and resource. It distinguishes from sibling tools like conversations_invite_shared or conversations_accept_shared_invite, though it could be more specific about what 'permissions' entails.

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 is provided on when to use this tool versus alternatives. There is no mention of prerequisites (e.g., channel must already be a shared Slack Connect channel), required user permissions, or scenarios where this tool should or should not be used.

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