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

Annotations only declare readOnlyHint=true, so the description carries the rest and does so: it requires login plus activity read permission, enumerates the returned blocks and the myAccess values (OWNER/ADMIN/PLATFORM_ADMIN), and notes the resource remains readable after delisting or cancellation — state most agents would not guess. It stops short of describing payload shape or pagination, but for a single-object config read that is a small residual gap.

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?

Front-loaded with what is returned, then exclusions, then call guidance — every clause carries distinct information and nothing is padding. The dense arrow notation is terse but readable and matches the tool's operational nature.

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 read-only single-parameter tool with full schema coverage and no output schema, the description covers auth prerequisites, returned sections, exclusions, post-delisting readability and the follow-up tool chain. Nothing an agent needs to invoke it correctly is missing.

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 sole parameter already documents slug-or-id in the schema, so the description's 'activityRef收slug/id' is largely a restatement. Baseline 3 applies since the schema does the work and the description adds no format or resolution nuance beyond it.

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 (读...完整配置) and immediately bounds the payload: 本体/报名配置及myAccess, with explicit exclusions (不含报名者数据或learnedPageKeys). An agent can distinguish it from update_activity, update_organizer_signup_config and list_signup_submissions without opening any schema.

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?

Gives an explicit workflow (先读现值 → 用 update_organizer_signup_config 修改 → 再读确认) and routes the other field families to their correct tools (本体字段用 update_activity, 报名名单用 list_signup_submissions). This is close to the ideal of when/when-not/alternatives.

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