get_gex_intraday

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

With no annotations, the description carries the behavioral disclosure burden well: it explains the return payload, regime semantics, flippedAt=0 behavior, and access plan. It does not mention rate limits, caching, or error conditions, which keeps it from being fully transparent.

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 well structured: purpose, plan access, args, return contract, and a clarifying note. It is moderately long but every sentence adds operational value, and the core purpose is front-loaded.

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 the absence of an output schema, the description does well by enumerating all returned fields and their meanings. It could be slightly more complete by specifying session boundaries or data availability, but an agent has enough context to call and interpret the tool correctly.

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%, and the description fully compensates: it defines symbol as the underlying ticker and date as an optional session date in YYYY-MM-DD US/Eastern, omit for today. It also clarifies that the endpoint takes date, not expiration, which is valuable beyond the schema.

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 identifies the tool as an intraday gamma-regime tracker returning a time-series of Net GEX, spot, gamma flip, and regime label. It distinguishes itself from siblings with 'Intraday' and the explicit note that the endpoint takes date, not expiration.

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 context is implied through 'Intraday', 'through the session', and 'Omit for today', but the description never explicitly says when to choose this over siblings like get_gex or get_snapshot. The date-not-expiration note clarifies parameter misuse rather than tool selection.

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