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

With no annotations provided, the description carries the full burden, and it does disclose one genuinely useful behavioral trait: the tool returns 404 until the daily job has scored the member. However, it offers nothing else about return shape, auth requirements, or what the score represents beyond the parenthetical, leaving room for more detail for an unannotated tool.

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 sentences with zero waste: the primary purpose is front-loaded in the first sentencechers, and the second sentence delivers the critical 404 caveat. Every word earns its place.

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 read tool, the description covers the operation, the score's components, and the timing quirk that would otherwise surprise callers. The only notable gap is no description of the response shape, which matters a bit more given there is no output schema.

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 schema already clarifies the key nuance (user/profile UUID, not membership row id). The tool description adds no parameter-level information, so the baseline 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?

The description names a specific verb and resource ('Get a member's health score') and immediately enumerates what the score covers (engagement, activity, risk level), which disambiguates it from siblings like get_member and get_member_points. The parenthetical removes ambiguity about what 'health' means.

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 given on when to use this tool versus alternatives such as get_member, get_member_points, or get_course_progress. The daily-job timing note implies freshness constraints but does not state when an agent should prefer this tool or what to do when the 404 occurs.

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