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

Annotations already declare readOnlyHint=true and openWorldHint=false, so safety is covered; the description adds non-structured value with 'FREE' (cost) and the shape of the response (workflows, tools, prices, ready-to-use inputs). It leaves one real ambiguity unresolved: whether the tool only plans or also executes, which matters for a router-style tool with no output schema.

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 sentences, zero filler, and the highest-value token ('FREE') is front-loaded before the capability statement. The usage trigger is placed last where it reads as a closing routing instruction.

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 carries the burden of describing the return and does so (workflow, tool list, prices, inputs). But it never clarifies whether the returned plan is executed or merely proposed, which is the one thing an agent needs to know before chaining calls.

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% and the single parameter ships with an example, so baseline is already 3. The description earns the extra point by reinforcing the free-text, plain-language nature of the input ('describe a job in plain language'), which tells the agent not to pass a tool name or structured query.

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 gives a concrete verb-plus-resource ('describe a job' → 'get the best workflow and tools') and signals the returned payload ('prices and ready-to-use inputs'). It stops short of naming the closest sibling, tool_catalog, so the agent must infer the distinction from context rather than being told.

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?

'Start here when you are not sure which tool to call' is an explicit entry condition that tells the agent when to prefer this over the ~70 direct-action siblings. It offers no exclusion criteria or named alternative, so an agent that already knows its tool has no stated rule for skipping this.

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