hacs_list_hacs_critical_updates

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

With no annotations, the description carries full burden but only states a straightforward listing operation. It does not disclose any behavioral traits such as read-only nature, potential rate limits, or what constitutes 'critical'. The description adds minimal value beyond the name and input schema.

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?

The description is a single short sentence of 8 words, front-loaded with the action and resource. Every word is necessary and contributes to clarity, with no wasted space.

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 the tool's simplicity (no parameters, output schema present), the description is mostly complete. It tells the agent what to expect, though it lacks context on what 'critical updates' means. The presence of an output schema reduces the need to describe return values.

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 has no parameters, so the description doesn't need to explain them. Baseline for 0 parameters is 4, and the schema coverage is 100% (vacuously). The description correctly implies no input is needed.

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 clearly states the tool lists HACS repositories with pending upgrades, distinguishing it from sibling 'hacs_list_hacs_repositories' which lists all repositories. The verb 'list' and resource 'HACS repositories with pending upgrades' are specific and 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?

The description implies use when the agent needs to check for pending HACS upgrades, but no explicit guidance on when to use versus siblings like 'hacs_list_hacs_repositories' or 'hacs_get_hacs_repository' is provided. No exclusions or alternative recommendations are given.

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