schwab_stream_option_quotes

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

No annotations are provided, so the description must disclose behavioral traits. It mentions 'real-time' and 'snapshots' but does not clarify if the operation is read-only, requires an active session, has rate limits, or any side effects. Minimal 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 extremely concise: two sentences, no fluff, front-loaded with purpose. Every sentence earns its place.

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?

The presence of an output schema reduces the need to describe return values, but the description leaves ambiguity about whether this is a one-time snapshot or a continuous stream. The tool's complexity (streaming, option quotes) warrants more detail on behavior.

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?

With 0% schema description coverage, the description compensates by explaining the symbols parameter format with an example ('AAPL 260619C00150000'). This adds significant meaning beyond the schema, though more detail (e.g., case sensitivity) would improve it.

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 states the tool fetches real-time option quote snapshots from Schwab streaming. The verb 'Get' and resource 'real-time option quote snapshots' are specific, distinguishing it from siblings like schwab_stream_quotes and option_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?

No guidance on when to use this tool versus alternatives such as schwab_stream_quotes or options_chains. Missing context on prerequisites, authentication, or whether it provides a one-time snapshot vs continuous stream.

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