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

Annotations already declare destructiveHint=false, idempotentHint=true and readOnlyHint=false, so safety is covered. The description adds genuinely new context: an authentication requirement (connected identity), an acknowledgement response, and retry guidance to preserve request_id and payload — practical behavior not derivable from the annotations.

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?

Front-loaded with the action and its effect, then auth and retry notes. Three short clauses with no filler, though the retry sentence is slightly cryptic about what 'payload' refers to given only two flat string parameters.

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 mutation with no output schema, the description covers action, auth requirement, acknowledgement, and retry semantics. It omits only what a watch_id must reference (e.g. an id obtained from get_watchlist) and failure behavior for an unknown watch.

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 0%, so the description carries the full burden. It names request_id only in a retry context, hinting it is a deduplication/idempotency key, and leaves watch_id entirely unexplained apart from its name. Partial compensation for a two-parameter tool with no schema descriptions.

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 (remove) and resource (an own dependency watch), plus the return value (removal acknowledgement). The inverse relationship to the sibling watch_dependency is strongly implied by the naming but never named explicitly, so it falls just short of a 5.

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?

No when-to-use guidance, no mention of the counterpart watch_dependency tool, and no statement of preconditions beyond 'requires the connected identity'. The agent must infer that this is the undo path for watch_dependency and when removal (rather than leaving a watch in place) is appropriate.

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