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

Annotations already declare readOnlyHint=false and destructiveHint=true, so the safety profile is covered structurally. The description adds the useful detail that removal is addressed by index and requires a prior get_profile call, but it says nothing about irreversibility, whether remaining blocks shift positions, or what is returned. That is a modest addition over the annotations, not a rich behavioral disclosure.

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 short sentences, with the action and its addressing scheme front-loaded and the prerequisite workflow second. No redundant or filler wording.

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 one-parameter destructive tool with full schema coverage, annotations covering the safety profile, and no output schema, the description supplies what is needed to invoke it correctly. Only minor gaps remain around index bounds and post-removal position behavior.

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 100% and the single parameter's schema text already says '0-based position... Use get_profile to see the list.' The description mirrors that almost verbatim, so it adds essentially no meaning beyond the schema; baseline 3 applies.

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 and resource ('Remove a block from the profile') and scopes it to a positional identifier ('by its position (0-based index)'). It implicitly contrasts with add_block, update_block and reorder_blocks by being the deletion operation, but never names or explicitly distinguishes those siblings.

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 a concrete precondition workflow ('Use get_profile first to see the block list and positions'), which tells the agent exactly how to obtain a valid position before calling. It does not state exclusions, such as what happens with an out-of-range index or when to prefer update_block instead of removing and re-adding.

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