live_time_signature

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

With no annotations supplied, the description carries the full behavioral burden, and it does disclose one important trait: 'Each insert or remove is one live_undo', which tells the agent mutations are undoable atomically. It omits error behavior (e.g. removing a bar with no signature change), whether removing the initial signature is legal, and whether any permission or connection state is required.

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 definition is compressed into three front-loaded clauses mapping directly to the enum values, with no filler or repetition. The grammar is telegraphic ('at: the signature in effect at positions'), which costs a little readability but earns its space.

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 five-parameter mutation tool with no annotations and no output schema, the description covers the operations and their parameters but does not describe the shape of what 'at' returns (e.g. a numerator/denominator pair, possibly multiple for a list of positions). Adequate, not complete.

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 coverage is 0%, so the description must compensate, and it largely does: 'at' is defined as seconds or bars defaulting to the start, 'bar' is tied to insert/remove, and 'numerator'/'denominator' are scoped to 'insert'. It does not state validity constraints such as denominator being a power of two, which is the remaining semantic gap.

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 opening line 'Time signatures in the running Studio One' names the resource but supplies no verb, leaving the tool's nature (read vs write) to be inferred. The following clauses do name three concrete operations (at/insert/remove) with their payloads, which rescues the definition, but an agent must read past a vague headline to learn what it does.

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 three mode clauses implicitly define when each is used: 'at' for querying the signature in effect, 'insert' for adding a change at a bar, 'remove' for deleting one. There is no explicit when-not guidance, no mention of prerequisites (a live Studio One connection), and no differentiation from related siblings such as live_tempo.

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