build_devcontainer

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. 'Build' implies a potentially time-consuming or resource-intensive operation, but the description doesn't mention execution time, side effects (e.g., creating container images), error handling, or any constraints like permissions or system requirements. It adds minimal context beyond the basic action.

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 with no wasted words, making it easy to parse. However, it could be more front-loaded by immediately clarifying the tool's scope or differentiating it from siblings, but as-is, it's appropriately sized for its limited content.

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?

Given the complexity of building a DevContainer (which can involve Docker, dependencies, and runtime setup), no annotations, and no output schema, the description is incomplete. It lacks details on what the build process entails, expected outputs (e.g., success/failure states), or how it interacts with siblings, leaving significant gaps for an agent to operate 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%, so the schema already documents all three parameters (workspaceRoot, configPath, rebuild) with clear descriptions. The description adds no additional meaning about parameters—it doesn't explain how 'configuration' relates to 'configPath' or default behaviors, nor does it provide usage examples or constraints beyond what's in the schema.

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 'Build DevContainer from configuration' states a clear verb ('Build') and resource ('DevContainer'), but it's vague about what 'from configuration' entails—it doesn't specify whether this refers to a default configuration, a custom file, or something else. It also doesn't distinguish this tool from siblings like 'generate_devcontainer' or 'modify_devcontainer', leaving ambiguity about their different roles.

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. With siblings like 'generate_devcontainer' (likely for creating configs) and 'modify_devcontainer' (likely for updating existing ones), there's no indication of prerequisites, typical workflows, or exclusions, leaving the agent to guess based on tool names alone.

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