skill_load

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

No annotations exist, so the description must carry the transparency burden. It communicates that this is an on-demand load operation and ties it to progressive disclosure, but it does not disclose return behavior, error/not-found handling, or explicit read-only guarantees.

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, purposeful sentences with no filler. The core action, context, and when-to-use guidance are all packed efficiently.

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 two-parameter loader tool with no output schema, the description is adequate: it explains what is loaded, when to call it, and how it fits into the progressive disclosure flow. A small gap remains regarding what the response contains, but 'full SKILL.md body' conveys the essential outcome.

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?

Schema coverage is 100%, so the schema already documents both parameters. The description adds minimal parameter-specific meaning beyond context ('named skill' and matching behavior), which aligns with the baseline for high coverage.

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 a specific action ('Load the full SKILL.md body') on a specific resource ('for a named skill'). It also distinguishes itself from siblings like skills_list by describing this as the on-demand half of progressive disclosure.

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 gives a clear usage condition: 'Call only when the current task matches the skill's description.' It does not explicitly name alternatives such as skills_list for listing skills, but the progressive-disclosure context implies the distinction.

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