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

The '(live)' qualifier and 'straight from their brokerages' do add real behavioral context beyond the annotations — the data is fetched live, not cached. However, the read-only statement largely restates readOnlyHint/destructiveHint, and nothing is said about latency, empty results when no brokerage is linked, or result ordering.

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?

Two tight sentences: the resource and returned fields are front-loaded, followed by the safety note. Nothing is padded or redundant.

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 does name the key returned fields, and the rich annotations plus fully documented optional params cover the rest. Minor gaps are result ordering/volume behavior for a 90-day look-back.

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 100%, so days (1-90, default 30) and state (all/open/executed) are fully documented in the schema. The description adds no further meaning about filtering or defaults, so the baseline 3 applies.

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 the specific resource (the user's recent orders from brokerages) and the fields returned (status, action, quantity, limit, execution prices), which separates it from my_transactions and my_portfolio. It stops short of explicitly naming the sibling boundary, so 4 rather than 5.

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?

The read-only note implies this is the tool for viewing, not placing, orders, but there is no explicit when-to-use guidance versus my_transactions or my_option_positions, and no mention of how the days/state filters change the use case. Usage is implied rather than stated.

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