rynmesh_watcher_add

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

With no annotations provided, the description carries the full disclosure burden. It usefully reveals the delivery mechanism ('Changes surface as digest items on refresh') rather than an immediate return, which is genuine behavioral information. However, it omits lifecycle traits like check frequency, whether duplicate URLs are rejected, how a watcher is removed, and side effects of registration — all relevant for a mutation-type 'add' tool with no annotation safety profile.

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?

The description is a single 18-word sentence with no filler. The primary action is front-loaded ('Watch a web page for changes'), followed by the supporting detail of what change types are detected and how results surface. Every word earns its place.

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 simple 2-parameter tool with no output schema, the description conveys the core story: what it monitors and what happens to results. But it is incomplete for an 'add' operation with no annotations — an agent is left guessing about the meaning of `note`, whether duplicate watchers are allowed, and what acknowledgment or identifier the call returns.

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 0%, so the description must compensate. It implicitly clarifies that `url` is the target web page to monitor, but it never mentions the `note` parameter at all, leaving its purpose entirely undocumented in both the schema and the description. The single sentence provides only partial parameter meaning.

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?

The description states a specific verb ('watch') and resource ('a web page'), and further narrows the purpose with concrete change types ('price, stock, release, edits'). It differentiates itself from fetch/content siblings by framing the tool as a monitoring action rather than a retrieval action, though it never explicitly names a sibling to distinguish from.

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 explicit when-to-use or when-not-to-use guidance is given. With closely related sibling tools like rynmesh_digest_add_source and rynmesh_digest_refresh, the boundary between 'adding a watcher' and 'adding a digest source' is left to the agent's inference. The description only implies usage context through the monitoring wording.

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