update_block

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

Annotations provide no read-only, idempotent, or destructive hints. The description does not disclose side effects, error behavior, or whether updates are full replacements or partial. For a mutation tool, this is insufficient behavioral context.

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 description is a single short sentence, which is concise. However, it lacks structure (no sections, examples, or warnings). It is appropriately sized for a simple tool but misses important information, making it minimally adequate.

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?

No output schema is provided, and the description does not mention return values, success/failure indicators, or error conditions. Given that the tool mutates data, this is a significant omission. The description is not complete enough for reliable use.

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%, so the baseline is 3. The description adds no additional meaning beyond the schema; it does not explain the id format, data content expectations, or dataType implications beyond what the enum suggests.

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?

Description 'Update block content' clearly states verb (update) and resource (block). However, it does not differentiate from sibling 'batch_update_blocks' which updates multiple blocks, but the singleton update is implied by the singular name and required single id parameter.

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?

No guidance on when to use this tool versus alternatives like insert_block, delete_block, or batch_update_blocks. The description lacks any context about prerequisites or typical use cases.

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