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

Annotations already flag destructiveHint=true and readOnlyHint=false, but the description adds real value by specifying exactly which fields change: status becomes complete and endedAt is stamped. That clarifies that this is a reversible status update rather than a data deletion, which the destructive hint alone could not convey; it still omits preconditions and what happens on an already-ended meeting.

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 short sentences, zero filler, with the effect front-loaded after the identity statement. Nothing could be removed without losing information.

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 simple one-parameter mutation tool with no output schema and annotations covering safety, the description covers identity and effect but leaves notable gaps: how to obtain meeting_id, whether the meeting must be active, and behavior on invalid or already-ended meetings.

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 0%, so the description needed to explain meeting_id, but it never mentions the parameter at all. The only clue is the JSON schema's UUID format; an agent gets no guidance on sourcing the id (e.g., from list_meetings or create_meeting).

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 and resource ('End a Delta Meeting') and immediately names the effect. Clear enough to separate it from start_meeting/create_meeting by verb, but it never explicitly differentiates itself from siblings or states what kind of meeting qualifies.

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 when-to-use guidance, no mention of prerequisites (meeting must be in progress), and no reference to alternatives like start_meeting or list_meetings. The only guidance is the implicit semantics of the verb 'End'.

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