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

Well beyond the annotations, it discloses that any account key works, nothing is charged, retries are idempotent, and the same capability plus error code within 24 hours merges into the existing ticket. It also covers the secret-hygiene constraint (never include API keys or passwords; label IDs so a bare long ID isn't read as a secret) and the response channel and latency (24/7, first reply ~10 minutes, replies in-ticket plus owner email).

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?

Purpose and consent are front-loaded and almost every sentence carries operational information. It is a single very dense block, though, and details like the REST path duplicate what the schema and sibling tool cover — close to overloaded, but not padded with filler.

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 7-parameter mutation tool with no output schema, the description supplies everything an agent needs: what it returns, when not to use it, consent requirements, retry/merge semantics, and where to follow up. Nothing material is left to inference.

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 description coverage is 100%, so the baseline is 3; the description mostly restates what the schema already documents (subject is one line, description carries what/when/error/expected). It adds only marginal value, such as advising that other IDs be written with a label so a bare long ID isn't mistaken for a secret. Idempotency and category behavior are already covered by the schema text.

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 — 'Open a ticket with EveryInfra's human support team' — and names the return value (ticket number plus a link the account owner can open). It is clearly distinguishable from siblings such as everyinfra_get_ticket (progress/replies) and everyinfra_call_api (the failing call itself).

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?

Gives explicit triggers (calls keep failing or return wrong/missing data, top-up/charge/refund, requesting a new platform, capability or field) and an explicit exclusion (errors whose fault is the request or account need a fix or the user, not a ticket), plus a pointer to the error's support field for a ready draft. It also states the consent prerequisite (ask the user first) and names everyinfra_get_ticket as the follow-up path.

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