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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so 'Read-only... Starts nothing and records nothing' largely restates the structured safety profile. It does add value by specifying the content returned (rules, path, ranking link) in the absence of an output schema, but offers no further behavioral context beyond that.

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 short sentences, with the critical instruction 'Read this first' front-loaded and the read-only guarantee immediately following. Every clause carries information; nothing is redundant padding.

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?

For a no-parameter, read-only onboarding tool with no output schema, the description supplies the payload contents and the non-mutating guarantee an agent needs to call it safely. Nothing further is required to invoke it 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?

The schema is an empty object with zero parameters and 100% coverage, so there is no parameter meaning to add. The description correctly does not invent inputs, matching the baseline for a no-parameter tool.

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 the resource (La Forge orientation content) and enumerates exactly what comes back: what La Forge is, the easiest way to play, the full path, the rules, and the ranking link. The closing clause 'Starts nothing and records nothing' separates it from sibling mutation/entry tools like enter_forge or forge_add without needing to open any schema.

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?

'Read this first' gives explicit ordering guidance for an agent deciding where to begin. It does not name a specific alternative to choose instead under some condition, but for a zero-parameter entry-point tool the invocation condition is fully stated.

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