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

With no annotations, the description carries the burden of behavioral disclosure. It communicates that the tool performs a read-only flagging operation on specific lock files, but it does not disclose potential limitations such as repository-access requirements, rate limits, or the shape of the 'flags' output. This is adequate but not thorough.

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 first sentence front-loads the core purpose and scope efficiently. The second sentence adds a CLI link that is not clearly relevant to invoking this API tool, but the overall description remains compact and readable.

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 tool is simple, with three well-documented parameters, and the description covers the core behavior and target files. However, since there is no output schema, the description does not clarify what the tool returns (e.g., a list of flagged dependency names), which would help an agent use the result 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?

Schema description coverage is 100%, so the parameters are already documented in the schema. The description adds useful context around 'freshness threshold' and 'pinned dependencies,' but it does not materially expand the semantics of repo_url, ref, or threshold_days beyond what the schema already provides.

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 the concrete verb 'Flags' and identifies the exact resources scanned (requirements.txt, package-lock.json, uv.lock) plus the freshness-threshold condition. This makes the tool's purpose unmistakable and clearly differentiates it from the broader repo-risk-report sibling tools.

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 'supply-chain-compromise tripwire' implies a security-audit use case, but the description never explicitly says when to prefer this tool over the post_security_repo_risk_report_* siblings. The usage context is present but the comparison and exclusion guidance are left to inference.

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