open_questions

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

The description adds behavioral context: the tool returns a list of open items and hints that these are places where implementations diverge. However, no annotations are provided, so the description carries the burden. It does not state whether the list is static or generated, or any caching/rate limits, but for this kind of read-only tool, it is adequate. No contradiction.

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?

Four short paragraphs, each earning its place: purpose, timing, action on hit, consequence. No fluff, front-loaded with the core action.

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 simple zero-parameter tool, the description fully explains when and how to use it and what it returns. It doesn't describe output format, but an output schema exists, so that's not needed. It is complete for its complexity.

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 tool has zero parameters and schema coverage is 100%, so the description has little to add. The description explains what the output represents (open design decisions), adding semantic meaning beyond the empty schema. Baseline for 0 params is 4, and it meets that.

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 lists design decisions left open by the specification. It uses specific verb 'List' and resource 'design decisions', and distinguishes it from sibling tools like list_sections or get_spec by focusing on unresolved questions.

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?

Provides explicit guidance: check this tool before inventing an answer, and what to do if a question is here (say 'not decided yet' and ask). It implies when not to use (when question is not listed, it may be intentionally handled elsewhere).

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