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

With no annotations, the description carries the transparency burden. It discloses the read-only nature ('Read') and mentions the key requirement, but does not address potential errors, rate limits, or output structure. Given it's a read operation, it provides moderate context but lacks depth.

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 concise sentences deliver the purpose, the efficiency benefit, and the key requirement. No fluff 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?

The description gives a high-level overview but lacks param disambiguation and return format details. For a simple aggregate tool, it's adequate, but the vague 'ordered by how much a reviewer would want to know' and missing parameter explanations leave gaps.

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 explain parameters. It does not clarify the difference between 'filename' and 'manifest', which one is expected, or the format. The only hints are 'whole manifest' and the required 'manifest' field, leaving the optional 'filename' 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 clearly identifies the tool's action: 'Read a whole manifest and return every reading on record for it.' It distinguishes itself from sibling tools by noting 'One call instead of one per dependency,' signaling an aggregate bulk operation.

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 phrase 'One call instead of one per dependency' implies this tool is for whole-manifest auditing versus per-dependency checks, providing clear context for when to use it. However, it does not explicitly name alternative tools or state when not to use it.

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