batch_rename_items

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

With no annotations, the description must carry the behavioral load, and it does disclose the ordering semantics (track-then-position), the -1 cross-track behavior, and the return value ("the list of renames applied"). It omits any warning about overwriting existing names or collision behavior, but for a local DAW rename operation the disclosure is solid.

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 sentences, all front-loaded with the core action first and token reference second. No filler; a slight tightening of the token list is possible but nothing is wasteful.

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?

No output schema and no annotations, but the description covers action, ordering, scope switch, token grammar, and return value. An agent has enough to invoke it correctly; only edge-case error behavior is absent.

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%, yet the description documents the pattern token vocabulary ($num, $idx, $name, $track), explains pad_width via the $num padding rule, and defines the sentinel value for track_index. Only start_num is left implicit (its off-by-N interaction with the 1-based $num is never stated).

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+resource+scope: "Rename items on a track in order." An agent can distinguish it from batch_rename_regions by the item/region noun, though the description never names that sibling, so differentiation relies on inference.

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?

It gives one concrete usage rule (track_index = -1 applies across ALL tracks in track-then-position order), which tells the agent when the broad mode applies. It offers no guidance on when to prefer this tool over batch_rename_regions or what happens on invalid track_index.

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