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

The annotations already provide idempotency, read-only, open-world, and destructive hints, and the description adds context beyond them: paid resource with a specific x402 price, deterministic output, and a 'trust unknown' framing. It does not describe side effects despite readOnlyHint=false, but the cost disclosure and determinism note are meaningful additions.

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?

Three dense sentences: the first delivers the core function and output, the second bounds applicability, and the third handles pricing. There is no filler or repeated schema 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?

For a moderate-complexity validation tool with no output schema, the description gives enough about inputs, outputs, exclusions, and cost. It falls slightly short on explaining optional parameters and error/blocker shape in more detail, but the core agent decision of whether to call this tool is well supported.

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 0%, so the description must compensate for the absence of parameter docs. It only loosely maps 'workflow dependencies' to nodes/edges and 'execution constraints' to max_total_cost/max_total_latency_ms, leaving units, the enabled flag, cost fields, and the meaning of omitted constraints unexplained.

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 uses a specific verb ('Validates') and names the resource ('caller-supplied workflow dependencies and execution constraints') plus the concrete output ('deterministic execution order or concrete blockers'). It clearly distinguishes itself from legal, identity, and financial adjudication tools, though it does not explicitly differentiate from similarly named execution_safety_* siblings such as workflow_dependency_validator.

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?

It gives an explicit intended context ('execution safety / trust unknown') and explicit exclusions ('Do not use for legal, identity, sanctions, fraud, contractual, or regulatory adjudication'). It stops short of naming alternative tools an agent should use instead, so it is not a full 5.

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