create_policy_context

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 mentions 'mandatory sunset' but does not state side effects, permissions, irreversibility, or response format for this creation operation.

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 very concise at two sentences and front-loads the core action. While sparse, it avoids unnecessary text and is easy to parse.

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 creation tool with four parameters and no output schema, the description is too minimal. It does not explain parameter relationships, prerequisites, or what happens after creation, leaving significant gaps for an agent to invoke it correctly.

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 only 25%, and the description only adds minimal meaning by tying 'mandatory sunset' to the required valid_until parameter. The other parameters (trust_epoch, policy_version, values_floor_version) are left with defaults but no semantic explanation either in the schema or the description.

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 clearly states the tool creates a 'v2 PolicyContext' with a mandatory sunset, giving a specific verb and resource. The reference to 'Every v2 object requires one' adds scoping context, though it does not explicitly distinguish from many sibling creation 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?

The phrase 'Every v2 object requires one' implies that this tool should be used to satisfy a prerequisite for v2 objects, but it does not explicitly state when to use this tool versus alternatives. There are no clear when-not or alternative tool references.

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