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

Annotations already indicate read-only and non-destructive behavior, and the description adds a useful explicit guarantee: 'writes nothing and records no signal.' It also clarifies the output is the real path, not a preview, which goes beyond the annotations.

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 short, front-loaded sentences plus one bracketed metadata line. Each sentence adds a distinct fact: purpose, output authenticity, and side-effect guarantee. There is no filler or repetition.

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?

Given full schema coverage and an output schema, the description need not repeat parameter or return details. It covers purpose, output authenticity, and side effects. The main gap is not mentioning how this relates to the sibling relation_floor tool for adjacent magazine use cases.

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 parameters such as forms, limit, emotions, and property are already documented in the schema. The description only gestures at these via 'wanted these things' and adds no additional parameter-level guidance.

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 names a concrete deliverable: the REAL sequenced path with rationale for each piece. It also explicitly states this is not a preview, clarifying the output is the actual core path. It does not explicitly contrast with sibling tools like relation_floor, but the verb and resource are clear enough.

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 opening sentence frames the specific scenario: use this when asking what the magazine would actually offer a reader expressing certain wants/emotions/forms. It provides clear context but does not list exclusions or explicitly direct the agent to an alternative sibling tool.

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