get_futures_snapshot

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

No annotations are provided, so the description must fully disclose behavioral traits. It only states the action without mentioning read/write nature, permissions, rate limits, output format, or pagination. This leaves the agent with no insight into how the tool behaves beyond its basic function.

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, short sentence, which is concise but under-specified. While it avoids verbosity, it lacks necessary detail, making it inefficient rather than appropriately sized. It is front-loaded but incomplete.

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?

Given high complexity (15 parameters, 0% schema coverage, no output schema, no annotations), the description is severely incomplete. It does not explain parameter usage, behavioral aspects, or output, leaving the agent unable to use the tool effectively without guessing.

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 0% with 15 parameters, all undocumented in the schema. The description adds no parameter information, failing to explain what parameters like 'product_code_gt' or 'ticker_any_of' mean or how they affect results. It does not compensate for the lack of schema details.

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 'Get snapshots for futures contracts' restates the tool name with minimal elaboration, making it a tautology. It specifies the resource (futures contracts) and action (get snapshots) but lacks detail on what 'snapshots' entail or how it differs from sibling tools like get_snapshot_all or get_snapshot_ticker, leaving the purpose vague.

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 provided on when to use this tool versus alternatives. With multiple snapshot-related siblings (e.g., get_snapshot_all, get_snapshot_ticker), the description fails to indicate context, prerequisites, or exclusions, offering no help for selection.

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