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

Annotations already declare readOnlyHint, idempotentHint and openWorldHint, so the safety profile is carried structurally. The description adds an auth/channel note ("Requires HGRApi Header channel / ChannelOAuthId resolved internally"), but that sentence is ambiguous about whether the caller must supply a channel header or whether it is derived internally, which is exactly the detail an agent needs.

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 tight sentences with the purpose and scope front-loaded. The trailing auth sentence is short but cryptic enough that it costs some clarity rather than adding it.

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?

A one-parameter read tool with full schema coverage and an output schema; the description need not explain return values. Purpose, scope, resource identity and the sibling-family distinction are all present, so an agent has enough to call it correctly.

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 100% and the single parameter already points to hgr_list_channels as its source, so there is nothing left for the description to explain. The description adds no parameter meaning beyond the schema.

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 ("Reads AI Agent configuration") scoped to "one visible store", and explicitly contrasts AI Agent with AI Publisher, which separates it from the hgr_get_ai_publisher_* family. It does not distinguish it from the closest sibling, hgr_save_ai_agent_configuration (write counterpart) or hgr_get_ai_agent_dashboard, so it falls short of a 5.

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 implied guidance from "one visible store" and the AI Agent vs AI Publisher note, but no explicit when-to-use / when-not-to-use statement. Nothing tells the agent to prefer this over hgr_get_ai_agent_dashboard or to call hgr_list_channels first for the required ID (the schema covers that, but the description does not reinforce it).

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