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

Annotations already declare destructiveHint=true, idempotentHint=false and readOnlyHint=false, so the safety profile is covered. The description still adds concrete value by spelling out that the deletion is irreversible and by routing to the non-destructive alternative; the retry semantics are handled by the idempotencyKey schema. It stops short of stating permission requirements or any cascading effects, so it is not a full 5.

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?

The operative instruction is preceded by two sentences of store-domain boilerplate ('works on the business's own link-in-bio store...', 'Nothing is bought or sold in this chat...') that describe the store generally rather than this deletion. The delete-specific content is efficient once reached, but the purpose is not front-loaded.

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 destructive single-block delete with full annotation coverage, a complete schema and no output schema, the description supplies purpose, permanence, and the safer alternative. It omits only secondary details such as permission requirements and error/cascade behavior, which are minor here.

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 100% and each parameter (including the idempotencyKey retry protocol) is already documented in the schema. The description only repeats that blockId comes from list_store_blocks, adding no meaning beyond the schema, so the 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?

States a specific verb (Delete) and resource (a block on the store page), and distinguishes itself from siblings by naming where the blockId comes from (list_store_blocks) and by contrasting with hide_store_block. An agent can tell exactly what this does and how it differs from adjacent tools.

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?

Gives an explicit when-not plus the alternative: 'Cannot be undone; to take it off the page and keep it, use hide_store_block.' It also directs the agent to list_store_blocks to obtain the required id, so both the trigger condition and the alternative path are stated rather than inferred.

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