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

Annotations already declare readOnlyHint, destructiveHint=false and openWorldHint=false, so 'Read-only' largely repeats structured data. The one genuine addition is the scope constraint 'takes no title_id', telling the agent this is a global, title-independent listing, but return format, size and ordering are not addressed.

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?

Effectively two sentences with the core action front-loaded, but the parenthetical list of covered domains is long and slightly unwieldy. Nothing is wasted, though the enumeration could be trimmed.

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 output schema, the description usefully explains what is returned (name + description per skill) and how to follow up with get_skill. It stops short of describing volume or pagination, but is sufficient for a zero-arg discovery tool.

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 tool takes zero parameters, so the baseline is 4. The description correctly signals this by noting it 'takes no title_id' and requires no other inputs, leaving nothing ambiguous for an agent.

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 and resource ('List the SDK skills') and immediately enumerates their scope (name + description, covering currencies, store, quests, blockchain, module contract, checklists). An agent can distinguish it from get_skill, which is named as the per-item loader.

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?

Gives an explicit next step and the condition that selects it: 'Load one with get_skill before writing code against that part of the SDK.' That routes the agent between discovery and retrieval without inference.

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