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

The description adds behavioral context beyond the annotations: claims expire automatically and never block a publish, and are advisory in nature. This complements the idempotentHint and destructiveHint annotations, providing useful operational knowledge. 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 sentences, no waste, and the core purpose is front-loaded. Every word earns its place.

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?

The description is too sparse for a tool with six parameters and no output schema. It omits lifecycle details (e.g., how to release the claim, what happens on conflict, meaning of TTL), and does not reference the sibling release_map_scope. An agent would need more information to use it correctly.

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?

The schema has 0% description coverage, and the description provides no parameter explanations. While parameter names are somewhat self-explanatory, the description does not add meaning to fields like scopePrefix, idempotencyKey, or ttlSeconds. This is a significant gap for a tool with six 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 clearly states the tool's function: an advisory claim on a repository subtree to prevent overlapping work among concurrent mappers. It distinguishes itself from siblings like release_map_scope by implying a claim/release lifecycle, and from map_project by specifying the advisory coordination role.

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 description indicates the scenario for use (when concurrent mappers need to avoid overlapping work) but does not explicitly mention alternatives or when not to use. It lacks a reference to release_map_scope, which is a sibling that presumably releases the claim. While the context is clear, no exclusions are given, so it falls short of the highest level.

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