Update Package Lists

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

Annotations already declare readOnlyHint=false and destructiveHint=false, so the safety profile is covered. The description adds that the operation requires sudo, which is genuine behavioral context beyond the structured fields, but it omits anything about effects on the system beyond the index refresh.

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 tight sentence with the action front-loaded and a parenthetical noting the privilege requirement. No waste, though extremely terse – more differentiation from siblings could fit without bloat.

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 zero-parameter, non-destructive maintenance tool this is adequate, and the sudo hint is useful. It stops short of stating the typical workflow (refresh before installing/upgrading) or when it should not be run, leaving gaps an agent would want filled.

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?

Zero parameters, so the baseline is 4. The description correctly implies no arguments are needed and adds nothing that would mislead about inputs.

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+resource ('refresh package index') and identifies the underlying command (apt-get update), which distinguishes it from siblings like apt_upgrade or apt_install. Clear, though not explicitly contrasted with those siblings.

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 or relationship to alternatives. It never states that this should be run before apt_install/apt_upgrade, nor when to skip it. An agent must infer its role from the name alone.

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