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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint false and openWorldHint false, so the safety and determinism profile is fully covered. The description adds useful context about the recommendation's output range (founder-led to full leadership team across ARR bands), but says nothing about return shape (ordered roles? rationale?) beyond that.

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-loaded with the core purpose in one sentence, with the ARR range qualifier immediately following. The trailing external link is promotional rather than operational, a minor waste, but the whole description remains two tight sentences.

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?

For a single-input, read-only, closed-world calculator with no output schema, the description conveys enough: what it recommends, the input dimension (ARR), and the span of outcomes. It could be fuller on the form of the returned sequence, but nothing blocks correct invocation.

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% for the single 'arr' parameter, so the schema already carries the definition. The description adds only marginal framing by tying the input to ARR bands, which is baseline-level value when the schema does the heavy lifting.

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 ('Recommend the right growth/marketing hiring sequence') and bounds the scope by ARR band with concrete anchors (pre-$1M founder-led through $10M+ leadership team). It is clearly distinct from neighboring planners like sdr_capacity_and_inbound_quota_planner, though it never names a sibling to route against.

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 ARR-band framing implies when the tool applies ('for your ARR band'), but there is no explicit when-to-use guidance, no prerequisites, and no statement of when to choose this over adjacent planning tools such as the SDR capacity planner or in_house_vs_fractional_cmo.

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