tinyurl_delete

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

No annotations are supplied, so the description carries the full burden; it does disclose the auth requirement (Delete TinyURL token permission) and the exact-match, single-alias scope, which is real value. However, it never says the deletion is permanent/irreversible or what the response looks like, which are the critical behavioral facts for a destructive tool.

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 dense sentence that front-loads the action and endpoint, then appends the permission constraint. Nothing is wasted, though the endpoint path is arguably redundant with the prose.

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 destructive, annotation-free mutation with no output schema, the description covers identity, scope, and auth, but leaves out irreversibility, error behavior for missing aliases, and any return value. An agent could invoke it correctly but not predict its consequences.

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 both parameters are documented there (alias format 1-30 chars, domain enum fixed to tinyurl.com). The description only restates required-ness and the fixed domain, adding no syntax or semantics beyond the schema, 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 and resource ('Delete one exact TinyURL alias') plus the underlying endpoint, so the agent knows precisely what happens. It separates cleanly from tinyurl_create/read/update, but it never contrasts itself with the sibling tinyurl_archive, which is the most likely confusion point for a destructive operation.

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?

'Requires alias; domain is fixed to tinyurl.com' plus the required token permission ('Delete TinyURL') tells the agent the preconditions for calling it. There is no guidance on when to prefer tinyurl_archive instead of a hard delete, or what to do when the alias does not exist, so usage is implied rather than directed.

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