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

Annotations already declare destructive/readOnly/idempotent, but the description adds genuinely new behavioral context: the fresh job-level Apply permission requirement, the credit cost of a send ('one credit'), and the consent/freshness protocol. This is exactly the beyond-annotations detail that prevents a mistaken submission.

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?

Front-loads the purpose then layers the send workflow, permission requirement, and dismiss behavior in a tight set of sentences. Slightly dense and repeats the credit idea already in the decision schema, but there is little wasted text.

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 an output schema present and 100% parameter coverage, the description need only cover the decision workflow it governs. It supplies the missing operational context (permission freshness, credit, consent gate, dismiss path), so an agent has everything required to invoke it 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 coverage is 100%, so the baseline is 3, but the description adds consent semantics around job_approved ('set job_approved only after explicit agreement') and reinforces freshness for review_version ('An old exact-review approval... is insufficient'). It largely restates schema intent rather than introducing new syntax, so it lands just above baseline.

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 a specific verb and resource: 'Decide one of the authenticated user's historical application reviews,' and immediately distinguishes the two actions (send vs dismiss). It is clear what the tool does, though it never names the sibling tools (apply_to_job, get_application) an agent might otherwise reach for, so routing between decisions still relies on the name.

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?

Explicit preconditions and sequencing: 'Before calling with send, tell the member... show the job and this scope, then set job_approved only after explicit agreement,' plus the exclusion 'An old exact-review approval or saved answer is insufficient.' It also defines the alternative action ('Dismiss closes the review without applying'), so when-to-use and when-not are both covered.

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