file_lock_release

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It usefully adds that the lock is advisory and cooperative, and that the released holder is returned. However, it does not mention error behavior when the lock is not held, whether release is idempotent, or what happens if the file path is invalid.

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 two short sentences with no filler. The core action is front-loaded, and the advisory-lock caveat is useful supplementary context that 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?

For a single-parameter tool with no output schema and no annotations, the description covers the main action, the return value, and an important behavioral caveat. However, it omits error scenarios and path semantics, which an agent might need to use the tool robustly. It is adequate but not complete.

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 0%, and the description does not explain the file_path parameter beyond the implicit meaning that it identifies the lock to release. There is no mention of path format, whether it must match the path used during acquisition, or any constraints. The description fails to compensate for the schema's lack of detail.

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 names a specific verb ('Release') and a specific resource ('a previously acquired file lock'), and clearly distinguishes this from sibling tools like file_lock_acquire and file_lock_list. An agent can understand exactly what this tool does without additional context.

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 phrase 'previously acquired' implies the lock must have been obtained first, giving the agent clear contextual guidance. It does not explicitly name alternatives or exclusions, but the purpose is sufficiently clear that an agent can infer when to use it versus related lock tools.

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