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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, destructiveHint=false, so the safety profile is covered structurally. The description adds value with cost transparency ('$0.002 USD per call'), determinism of the returned order, and the possibility of returning 'concrete blockers'. No auth/rate-limit details are given, but the annotation coverage lowers the burden.

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 sentences, each earning its place: the first describes the core function, the second gives scope exclusions, and the third discloses cost. The most important information is front-loaded, with no redundant or filler content.

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?

The description covers purpose, exclusions, and cost, but for a graph-validation tool with 4 parameters, no output schema, and a large family of similarly named siblings, it omits parameter semantics and any differentiation among the other trust_identity_permission_control_plane_* tools. It is adequate for basic selection but not fully complete for confident 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 0%, so the description must compensate, but it only provides generic hints ('workflow dependencies' maps to nodes/edges, 'execution constraints' maps to max_total_cost/max_total_latency_ms). It does not explain the meaning of fields like cost, latency_ms, or enabled, nor the graph semantics beyond the phrase 'workflow dependencies'. This is a notable gap for correct invocation.

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 states a specific verb ('validates') and resource ('workflow dependencies and execution constraints') with a clear outcome ('deterministic execution order or concrete blockers'). It also names the intended domain ('trust identity permission / execution risk'). However, it does not differentiate from the many sibling trust_identity_permission_control_plane_* tools, leaving the agent to guess what makes this one distinct.

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 gives clear context: 'Intended for trust identity permission / execution risk' and an explicit exclusion list ('Do not use for legal, identity, sanctions, fraud, contractual, or regulatory adjudication'). It stops short of naming alternative tools for those exclusions, so the guidance is contextual but not fully comparative.

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