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

With no annotations the description carries the full burden, and it does disclose one non-obvious behavioral trait: only 'published' entries are returned, so unpublished slugs presumably fail. It says nothing about not-found behavior, permissions, or return shape, so it is only partially transparent.

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?

A single front-loaded sentence with the resource and the lookup key; every word earns its place and nothing is padded.

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 trivial one-param read tool with no output schema this is close to adequate, but the 'published' restriction raises an unanswered question about what happens for unpublished or missing slugs, which an agent calling this tool will need to handle.

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?

One parameter at 0% schema description coverage; the schema only says it is a string. The description adds that the slug is the lookup key for a published entry, which is real semantic value, but gives no format, casing, or uniqueness details.

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 (get) and resource (one published directory entry) and narrows it with 'by its slug,' which separates it from list_categories and search_projects. It never explicitly names those siblings, but the single-item-by-key framing is unambiguous.

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?

No when-to-use guidance and no comparison to alternatives such as search_projects for lookup by other criteria. The only implied usage is 'you already have a slug,' which the agent must infer.

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