get_live_state

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

Annotations already declare readOnlyHint=true and destructiveHint=false, and the description does not contradict that. It adds a little context by listing the returned state dimensions, but it does not explain the semantics of 'state version' or whether capabilities reflect connected devices/bridges.

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?

One compact, front-loaded sentence conveys the tool's scope without filler. The only blemish is the ambiguous 'set file path' phrasing, but the sentence is efficient.

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 no-parameter, read-only tool, the description plus annotations are nearly complete: the agent knows it is safe, needs no arguments, and will receive identity, capabilities, file path, tempo, playback, and state version. Absence of an output schema is mitigated by listing the fields.

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?

The input schema is empty with 100% description coverage, so there are no parameters to document. Baseline 4 applies because the description correctly implies a zero-argument call.

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 uses a specific verb ('Read') and enumerates the exact state fields: bridge identity, capabilities, set file path, tempo, playback, and state version. This makes the tool's read-only purpose clear, though the phrase 'set file path' is slightly ambiguous (could be misread as a mutation verb) and no sibling is named.

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 guidance is given about when to call this versus the many sibling state-reading tools like get_transport_context, get_song_musical_context, or get_history_state. The agent must infer from the name that this is the global state aggregate.

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