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

Annotations already declare destructiveHint=true, so the mutation risk is covered; the description adds that it targets a LIVE chat and maps to PUT /chats/status. It does not disclose side effects such as customer notification, whether the change is reversible, or permission requirements, so it adds only modest value beyond the annotation.

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 compact sentences with the action front-loaded and no filler. The trailing REST endpoint line is marginally useful metadata rather than essential agent guidance, but nothing is padded.

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 two-parameter tool with full schema coverage and no output schema, the definition covers the operation and its valid values adequately. It omits only secondary details like side effects or auth requirements, which keeps it from being fully complete.

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 enum already documents valid statuses; the description simply repeats a subset of those enum values ('opened, pending, on hold, or closed'). No extra semantics about the id or status transitions are provided, so the 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?

States a specific verb and resource ('CHANGES the status of a LIVE chat') plus concrete status examples, which lets an agent distinguish it from sibling list/get/assign tools. It stops short of naming an alternative sibling it could be confused with, so it lands just below the top tier.

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?

The description gives example status values but never states when to use this tool versus helpcrunch_assign_chat or helpcrunch_create_message, nor any prerequisites (e.g. the chat must already exist). Usage must be inferred from the verb alone.

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