Solve JavaScript constant constraints

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

The description explicitly states 'without executing supplied code,' which is a key safety trait and adds behavioral context beyond the bare operation. However, with no annotations, it fails to mention return format, edge cases, or the meaning of maxIterations, leaving significant gaps in expected behavior.

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, focused sentence that front-loads the action and avoids any redundancy. Every word contributes to the core purpose, making it highly concise without being vague.

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?

With no output schema and no annotations, the description is too sparse to be complete. It lacks when-to-use guidance, parameter semantics, and any mention of the return value or expected output, making it insufficient for an agent to confidently invoke the tool in a complex context.

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%, so the description carries the full burden for explaining parameters. It references 'supplied code' but never explains the purpose of code or maxIterations, their formats, or how they affect execution. This is a critical gap for a two-parameter tool.

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 gives a specific verb+resource: 'Fold safe literal binary expressions and prune literal boolean branches.' This clearly states what the tool does and differentiates it from sibling tools like general AST transforms or deobfuscation pipelines by focusing on constant constraint solving without execution.

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 is provided on when to use this tool versus alternatives like js_deobfuscate_pipeline or ast_transform_chain. The description only states the operation, leaving the agent to infer appropriate use cases without explicit exclusions or comparisons.

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