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

With no annotations, the description bears full responsibility. It explains both read and write behaviors, mentions that all proposals/approvals/rejections/outcomes are logged, and notes the unlock condition. However, it omits details about the return format of read operations and any required authentication or prerequisites.

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 with separate sections for read and write, front-loads the core purpose, and uses clear formatting. It is slightly wordy but still efficient, with every sentence contributing useful information.

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 tool's complexity (9 parameters, no output schema, no annotations), the description covers both modes and provides examples and a usage condition. However, it lacks details about the output format for reads and the necessity of the 'email' parameter, leaving some gaps.

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 coverage is 100%, so baseline is 3. The description adds value by providing concrete example calls for both read and write, clarifying parameter combinations beyond the schema descriptions, and mentioning the live trading unlock condition that relates to usage.

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's dual read/write purpose and details each mode: logging outcomes and retrieving trade history with summary stats. It implicitly differentiates from sibling tools like trading_propose by focusing on journaling, but does not explicitly compare.

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 description provides explicit formats for read and write operations, includes example calls, and mentions the precondition that live trading unlocks after 20 paper trades. It does not explicitly state when not to use it or name alternatives, but the context is clear.

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