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

Annotations already establish read-only/open-world safety, but the description adds genuinely useful behavioral detail: results come back in display order, a channel with no panels returns an empty list, and an unknown channel returns not found. These success/edge-case semantics go beyond what the annotations say. No mention of rate limits or auth, so not a 5.

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 tightly written sentences: the first defines what is returned and its ordering, the second gives usage and edge-case behavior. No filler, and the core purpose is front-loaded.

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 read-only, single-parameter lookup with a present output schema, the description covers purpose, usage, ordering, and the two failure modes (empty list, not found). Nothing an agent needs to call it correctly is missing, and return-value structure is handled by the output schema.

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% and the slug parameter is already fully described in the schema (slug from kick.com/{slug}, case-insensitive, URL accepted). The description adds no additional parameter-level meaning, so the baseline 3 applies.

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 (List) and resource (the panels a Kick channel shows under its stream), then enumerates the two panel types (link panels with title/description/URL/image, and text panels like FAQs). This is clearly distinguishable from siblings like kick_channel_emotes, kick_channel_videos, or kick_channel_streams, which cover different channel content.

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 sentence 'Use this to find a streamer's own links or channel rules text' gives explicit usage context, telling the agent exactly what task this tool serves. It does not name alternative tools or state when-not to use it, which keeps it just short of a 5.

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