get_tracking_link

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

With no annotations, the description carries the full burden, and it does disclose 'Read-only', which is the key safety signal. It also enumerates the returned fields and the resolved source shape, but says nothing about permissions, invalid-token error behavior, or whether the token is case-sensitive.

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?

Three short sentences with the action and read-only nature front-loaded, then the return detail. The return-field enumeration is partly redundant given an output schema exists, but it is compact and not bloated.

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 single-parameter read tool with an output schema, this covers the essentials: what it does, the safety profile, where the input comes from, and what comes back. Only error/not-found behavior and permission requirements are left unstated, which are minor gaps here.

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 single parameter is documented, so the baseline is 3. The description goes beyond it by explaining where the token comes from (the gh_src value in the tracking URL), which is practical sourcing guidance the schema does not provide.

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 ('Get a tracking link by its token'), which is unambiguous against the large sibling list. It does not explicitly differentiate from post_tracking_link, the write counterpart, but the name and 'by its token' scoping make the distinction inferable.

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 provides useful entry context by identifying the token as the gh_src value from the tracking URL, which tells an agent when it has the right input. However, it names no alternative tool and gives no explicit when/when-not conditions for retrieving a link versus listing or creating one.

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