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

The word 'stateless' and the term 'facts' suggest a read-only, no-side-effect informational tool, which is useful because no annotations are provided. However, the description does not disclose output format, data source, freshness, permissions, or what 'cell listen facts' concretely represent. It adds some behavioral context but not enough for full transparency.

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?

The description is a single, compact fragment with no filler; 'Stateless' is front-loaded and every word contributes. It lacks a main verb and reads more like a label than a sentence, but for a zero-parameter tool this level of brevity is reasonable.

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?

With zero parameters and no output schema, the description should clarify what the tool returns; it names categories (mode, genesis epoch, subjects, cell listen facts) but not their meaning, format, or how 'health' is represented. The description is likely usable as a simple status probe but leaves key semantics vague.

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?

The input schema is empty and there are zero parameters, so there is nothing for the description to explain. The zero-parameter baseline of 4 applies, and no parameter information is missing.

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 identifies the resource ('membrane identity') and lists content categories (mode, genesis epoch, subjects, cell listen facts), which implies an informational/read tool. However, it lacks any verb stating what the tool does (returns, checks, lists), and the name 'membrane_health' is not directly explained. It also does not distinguish this from the large set of sibling tools.

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 guidance on when to use this tool versus alternatives such as umc_status or corpus_bonds. No preconditions, exclusions, or alternative routing are mentioned. The absence is neutral rather than misleading.

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