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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=true, so the safety profile is fully covered. The description's added value is enumerating what the payload covers (fee modes, splits, graduation, program addresses), but it does not say whether values are live/fetched or static documentation, nor what format the response takes.

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?

A single front-loaded sentence with a dense but useful enumeration; each clause names a concrete content area rather than filler. Slightly list-like and lacking a lead statement of 'returns documentation', but nothing is wasted.

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 zero-parameter, no-output-schema informational tool, the description covers the substantive content areas an agent would need to know it can consult here. It stops short of stating whether the returned data is live or cached and what the response structure looks like, which leaves a modest 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 tool takes zero parameters, so the baseline of 4 applies. The description correctly implies no input is needed by presenting itself as a pure informational lookup.

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 clearly frames this as a reference/knowledge tool: 'How higher.fun works', followed by an enumerated list of topics (launch fee, SOL price, fee modes and splits, graduation, Raydium program and platform addresses). That is enough to distinguish it from the data-oriented siblings like get_coin, get_coin_fees, or quote_trade, though it never explicitly says 'this returns documentation, not market data'.

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 when-to-use guidance at all: nothing says to call this before build_launch or build_trade to understand fee mechanics, and no alternative or exclusion is named. An agent must infer the usage context purely from the topic list.

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