Connect to REW API

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

With no annotations supplied, the description carries the full burden and does add real value by disclosing the server-side enablement requirement. However, it says nothing about what a failed connection looks like, whether the connection persists across subsequent calls, or whether re-invocation is safe, which are the behaviors that matter most for a connection 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?

Three short sentences, front-loaded with the action, then the prerequisite, then the default. Minor redundancy in restating the port default already present in the schema, but nothing extraneous otherwise.

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 zero-required-parameter connection tool with no annotations and no output schema, the description covers setup prerequisites adequately but leaves the agent guessing about return semantics and the ordering relationship to the many rew_api_* siblings that presumably depend on this connection.

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% with all three parameters documented, including defaults and ranges, so the baseline is 3. The description's mention of the default port 4735 simply repeats the schema default and adds no new meaning for host or timeout_ms.

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: connecting to a running REW instance's REST API. It is distinguishable from the rew_api_* siblings as a connection-establishment operation, but it never explicitly frames itself as the prerequisite step for those siblings, so the differentiation is implied rather than stated.

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?

Provides a concrete precondition (REW must be launched with -api or have API enabled in preferences) and a default port, which is exactly the context an agent needs before attempting a call. It stops short of saying when not to use it or explicitly directing the agent to call this before other rew_api_* tools.

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