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

Annotations (readOnlyHint=false, idempotentHint=true, destructiveHint=false) are consistent with the description's 'Undo' language, and the description adds value beyond them: the PROJECT-SCOPED behavior, what components are undone together, and the keep_clip=true non-destructive option. No contradiction with annotations.

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?

Two dense, well-ordered sentences. The critical PROJECT-SCOPED constraint is front-loaded, followed by the action, the components undone, and the optional flag. Every clause earns its place with zero redundancy.

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 3-parameter removal tool with a reasonable annotation set and no output schema, the description is thorough: it covers scoping, id source, what gets undone, the keep_clip option, and even the return value (project identity). Only an explicit exclusion of when not to use it keeps this from a 5.

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 only 33% (only project_id is documented). The description compensates by clarifying that id comes from get_edl and by explaining keep_clip=true leaves the clip as a plain cut. project_id is already fully described in the schema. This meaningfully bridges the gap for the undocumented parameters.

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+resource ('Undo a screen takeover by its id') and explains what that entails (corner pin, camera push, handed-off clip), which distinguishes it from the sibling remove_screen_frame. It doesn't explicitly contrast itself with that sibling, but the domain explanation makes the boundary clear.

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?

Clear context is provided: use it to undo a screen takeover, find the id via get_edl, and optionally keep the clip via keep_clip=true. It lacks an explicit when-not-to-use or named alternative, but the scoping note and the reference to get_edl give an agent enough to invoke it correctly.

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