archimate_open_model

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

No annotations are provided, so the description must carry the full burden. It states the tool 'opens' a model and 'returns metadata', but does not clarify whether it modifies files (likely read-only), whether authentication is needed, or whether the model becomes the active context for other tools. It lacks disclosure of side effects or state changes.

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, well-structured sentence that efficiently covers the action, source, and return value. Every phrase contributes meaning (action, source type, output). No unnecessary words or redundancy.

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 tool's simplicity (one string parameter, no output schema), the description is moderately complete. It explains what the tool does and what it returns. However, it omits details about the return format (metadata structure), the fact that the model becomes the current working model for other tools, and the requirement that the directory be a coArchi repository. These gaps reduce completeness.

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 input schema already describes the 'path' parameter as 'Path to the model directory or model.archimate file' with 100% coverage. The tool description adds context by mentioning 'coArchi repository directory', but does not provide additional parameter constraints, examples, or formatting hints beyond what the schema offers. Hence, minimal added value.

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 action ('Open an ArchiMate model'), the source ('from a coArchi repository directory'), and the return value ('model metadata including element counts by layer'). This distinguishes it from siblings like 'archimate_create_model' (creates a new model) and 'archimate_list_elements' (lists elements within a model).

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 does not specify when to use this tool versus alternatives, nor does it mention prerequisites (e.g., that the directory must be a valid coArchi repository). There is no guidance on when not to use it or what to do after opening. For example, it does not state that subsequent operations like adding elements depend on a model being open.

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