localstack-iam-policy-analyzer

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

Annotations indicate this is not read-only, not idempotent, and not destructive, but the description adds context about what the tool does (configuring enforcement and analyzing logs). However, it doesn't disclose important behavioral traits like whether changes are persistent, what permissions are needed, or how the analysis works. With annotations covering basic safety, the description provides some value but lacks depth.

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, efficient sentence that front-loads the core functionality. Every word earns its place without redundancy or fluff, making it easy to parse quickly.

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 tool with 2 parameters, 100% schema coverage, and no output schema, the description is minimally adequate. It covers the high-level purpose but lacks details on usage context, behavioral nuances, or output expectations. Given the annotations provide basic safety info, it's complete enough to understand what the tool does but not how to use it effectively.

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 100%, with clear enum descriptions for both parameters. The description mentions 'configures LocalStack's IAM enforcement' and 'analyzes logs', which loosely map to the 'set-mode' and 'analyze-policies' actions, but adds no additional semantic details beyond what the schema provides. Baseline 3 is appropriate given high schema coverage.

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's purpose: configuring IAM enforcement and analyzing logs to generate missing policies. It uses specific verbs ('configures', 'analyzes', 'generates') and identifies the resource (IAM policies). However, it doesn't explicitly differentiate from sibling tools like 'localstack-logs-analysis' or 'localstack-management', which might have overlapping functionality.

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. It doesn't mention prerequisites, appropriate contexts, or exclusions. Given the sibling tools include 'localstack-logs-analysis' and 'localstack-management', which might handle similar tasks, the lack of differentiation is a significant gap.

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