edit

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

With no annotations the description carries the full burden and does real work: it states all-or-nothing atomicity ('all apply and validate, or nothing changes'), undoability ('Every applied batch can be undone'), and non-obvious mutation semantics (add_asset replaces an existing id; update_asset deep-merges with null removing a key). It does not cover failure/error reporting or what the batch returns.

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?

Atomicity and undo guarantees are front-loaded, followed by a compact op inventory; nearly every clause adds information. Slightly dense and run-on, but no filler sentences.

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 high-impact batch mutation tool with no annotations, no output schema, and 0% schema coverage, the description is informative on ops and transactional semantics but leaves the `project` parameter, the string form of `ops`, and the deferred `set` semantics unexplained. Adequate but with clear gaps.

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%, so the description must compensate and only partly does: it richly documents the `ops` vocabulary and even shows an inline payload shape for update_asset, but never explains the required `project` parameter, and silently ignores the fact that `ops` may be a string (a vague 'see the manual' only covers the `set` op).

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?

Opens with a specific verb and resource: 'Apply a batch of edit ops atomically', then enumerates the exact op vocabulary (add_track, update_clip, split_clip, ...). An agent immediately knows this is the mutation entry point for a project timeline, though it does not contrast itself with siblings like `check` or `preview`.

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 op list and the atomic/undoable framing; there is no explicit when-to-use statement or exclusion (e.g. when to call `check` first, or `preview` instead). The 'see the manual' pointer routes to a sibling but only for the `set` op, not for general usage guidance.

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