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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds that the data comes from GET /api/chains and includes keys, explorers, and aggregators, giving useful context beyond the annotations, though it omits auth and rate-limit details.

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 front-loaded sentence with no filler. The slash-separated purpose and parenthetical return categories are slightly terse, but every element contributes to understanding the tool.

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, zero-parameter, read-only list tool with no output schema, the description gives enough context: source endpoint and returned categories (keys, explorers, aggregators). It does not explain pagination or exact response shape, but the annotations and simplicity keep this from being a major gap.

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 schema has zero parameters, so the baseline of 4 applies. There are no parameter semantics for the description to clarify or compensate for.

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 resource (networks), a purpose (meme research / buy routing), and the underlying endpoint GET /api/chains. It distinguishes itself from action-oriented siblings like memeswap_quote or memeswap_portfolio, though it does not explicitly say 'list all supported networks'.

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 phrase 'for meme research / buy routing' implies when the tool is useful, but it does not state prerequisites, exclusions, or an explicit alternative tool to use instead. Usage is left to inference from the purpose statement.

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