get_track_state

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

With no annotations, the description carries the full burden and does meaningful work: it declares 'Side effects: none' and specifies the error contract (out-of-range index returns INVALID_PARAMS). What is missing is any hint about the shape or size of the returned state, which matters since there is no output schema.

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?

Four short lines, front-loaded with purpose, then labeled Side effects, Example, and Edge cases. Every sentence conveys distinct information with no repetition or filler.

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 one-parameter read tool with no annotations and no output schema, the description covers purpose, safety profile, indexing convention, and error behavior. The remaining gap is that it never characterizes the returned state payload beyond naming the three state categories.

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% for the single track_index parameter, so the description must compensate, and it does: the example get_track_state(0) 'inspects the first track' resolves the 0-based vs 1-based ambiguity, and the out-of-range/INVALID_PARAMS note defines the valid domain.

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 (Read) plus a precisely enumerated resource: mixer, device, and Session clip-slot state, scoped to 'one track'. That scope immediately separates it from list-style siblings such as get_track_list and session-wide siblings such as get_session_overview.

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?

Usage is only implied by the resource description; there is no explicit when-to-use or when-not-to-use guidance, and no sibling is named as an alternative (e.g. get_track_list for enumeration vs. this for detailed state). The worked example hints at the typical call but does not set routing conditions.

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