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

Annotations already declare readOnlyHint, idempotentHint, and openWorldHint=false, so safety is covered by structured data. The description adds only an opaque rule code (LIN-100-ChainIntegrity) with no explanation of what it verifies, what it returns, or what happens if the chain is broken.

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?

The text is short and front-loaded, but the parenthetical code consumes most of the content without conveying usable meaning. Brevity here reflects under-specification rather than disciplined economy.

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 two required parameters at 0% coverage, no output schema, and a complex nested array parameter, the description should carry far more explanation than it does. As written, an agent cannot determine how to invoke the tool 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?

Both required parameters (model_id, dataset_stages) have 0% schema description coverage, and the description says nothing about them. In particular, the structure of the dataset_stages array of objects is entirely undocumented, leaving the agent unable to construct a valid call.

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 restates the name ("Data lineage") with no verb or scope, so it is close to tautology. The bracketed "[security]" tag and "LIN-100-ChainIntegrity" hint at a compliance-integrity purpose but never state what the tool actually does or how it differs from siblings like compliance_check or compliance_explain.

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?

There is no when-to-use or when-not-to-use guidance. With siblings such as compliance_check, compliance_eu_ai_act, and compliance_transparency in the same family, an agent has no signal for selecting this tool over those.

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