justi.fun platform totals

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety and external-data exposure are covered. The description adds the metric categories being totaled, which is meaningful value, but says nothing about data freshness, whether totals are cumulative historical or a current snapshot, or how recently they are computed — a real concern for an open-world stats endpoint.

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?

One sentence, front-loaded with the scope ('Platform-wide totals of justi.fun') followed by the metric list. It is efficient with no filler, though the phrase overlaps substantially with the title rather than adding new framing.

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 no output schema, the description carries the burden of telling the agent what comes back; the metric list partially does this, but leaves open units, snapshot vs. cumulative semantics, and whether data is live or cached. Given the tool is simple and read-only, this is adequate but leaves a genuine gap for an open-world stats call.

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 there is nothing to disambiguate; baseline 4 applies. The description avoids inventing or misdescribing inputs.

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-free but precise resource: platform-wide aggregate totals, and enumerates the metrics (coins launched, volume, fees, holder payouts, burns). This clearly distinguishes it from per-coin siblings like justi_get_coin, justi_recent_trades and justi_tx_status, which are all scoped to individual items rather than platform aggregates.

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?

Usage is only implied: an agent can infer this is the tool for 'give me overall platform numbers' as opposed to per-coin or per-transaction lookups. There is no explicit when-to-use / when-not-to-use statement and no naming of an alternative (e.g. justi_protocol_info), which is the obvious potential overlap.

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