create_vault_entry

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

With no annotations provided, the description carries the burden of disclosing behavioral traits. It only states 'Create' which implies mutation, but fails to mention potential side effects, required permissions, overwrite behavior, or return values. For a creation tool, this leaves the agent without knowledge of what happens when the vault entry is created.

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 concise sentence with no redundant wording, making it efficient. However, it is so brief that it may under-specify, but conciseness is about eliminating waste rather than adding content. For the minimal content provided, it achieves the goal of being compact without filler.

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?

Despite having 6 parameters (3 required), no annotations, no output schema, and sibling tools with similar operations, the description offers essentially no contextual information. It does not explain the purpose beyond the title, the meaning of the vault entry, the effect of creating, or any relevant details. For a tool with this complexity, the description is completely inadequate.

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 input schema has 100% description coverage for all 6 parameters, so the schema already documents each parameter's meaning. The description adds no additional parameter context beyond the schema, which is acceptable but not value-adding. The baseline of 3 is appropriate because the schema carries the parameter documentation burden.

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 'Create a new vault entry' uses a specific verb and resource, clearly indicating a creation action. It distinguishes from sibling tools like get_vault_entry, update_vault_entry, and delete_vault_entry by the verb 'create'. However, it lacks any scope detail about what constitutes a vault entry, making it clear but not highly distinctive beyond the action.

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 provides no guidance on when to use this tool versus alternatives such as update_vault_entry or list_vault_entries. There are no usage scenarios, exclusions, or prerequisite conditions mentioned, leaving the agent without guidance on selecting this tool in context.

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