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

No annotations are supplied, so the description carries the full behavioral burden. It does disclose the concrete checks performed, which signals a read-only analysis operation, but says nothing about output shape, severity levels, or how findings are reported. It also never clarifies which of the three input fields the caller must populate.

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?

Front-loaded with the tool name and a compact list of checks in a single sentence. The trailing free-trial clause is ecosystem boilerplate rather than tool behavior, slightly diluting an otherwise tight definition.

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 no annotations, no output schema, and three undocumented input fields, the description should do more work. It omits the return format (since no output schema exists to cover it) and the parameter-selection rule, so an agent cannot confidently construct a call from this text alone.

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?

Three parameters (text, input, dockerfile) with 0% schema description coverage and no required field, yet the description mentions only 'Dockerfile text' generically. It never explains whether these are aliases or distinct inputs, leaving the caller to guess which one to send.

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?

States a specific verb (Lint/Checks) and resource (Dockerfile text) and enumerates the exact issues detected (missing FROM or CMD, remote ADD, apt-get cleanup). No sibling in the list covers Dockerfile linting, so differentiation is unnecessary. It stops short of a 5 only because scope (whole file vs snippet, multi-stage handling) is unspecified.

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 no when-to-use context, no prerequisites, and no alternatives. The only added clause is a pricing note about free trial calls, which is not usage guidance. An agent gets no help deciding when this lint is appropriate versus any other check tool.

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