fl_get_transport_state

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, covering safety and side-effect behavior. The description adds value by specifying exactly which transport aspects are exposed (playback, recording, loop mode, position, song length), which is not captured in the annotations. It does not contradict any annotations and provides behavioral context beyond the structured hints.

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 sentence that front-loads the verb 'Read' and enumerates the fields concisely. Every word adds value, with no redundancy or filler. The structure is ideal for a simple getter.

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?

The description is complete enough for a parameterless read with annotations covering safety and an output schema (not shown) that presumably defines the return structure. It lists all key transport aspects an agent would want to query. The only minor gap is not stating that it returns the current values, but that is implied by 'Read'. Overall, it is sufficient for correct invocation.

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 tool has zero parameters, so there is nothing to document. The schema coverage is trivially 100% and the description needs no parameter details. Per the rubric, a baseline of 4 applies for zero parameters, and since the description is entirely sufficient for a parameterless read, a score of 5 is appropriate.

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 clearly states the verb 'Read' and the resource 'transport state', explicitly listing the attributes (playback, recording, loop mode, position, and song length). This distinguishes it from sibling setter tools like fl_set_playing or fl_set_song_position, which are inherently mutating. The tool's read-only nature is made obvious, so an agent can immediately understand its role.

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?

The description implies usage as the read counterpart to transport setters but does not explicitly state when to use it over other getters or mention that modifications require fl_set_* tools. While the verb 'Read' makes its purpose clear, there is no explicit guidance on when not to use it or how it contrasts with other read tools like fl_get_selected_range. The guidance is present but not detailed.

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