initialize

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

No annotations are provided, so the description must convey behavioral traits. It only states the tool performs a handshake and returns data, but does not disclose whether it is idempotent, has side effects, requires specific authentication, or what happens on multiple calls. This is a significant gap for a tool likely called at startup.

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 very concise at one sentence, but it sacrifices essential detail. It is front-loaded with the key concept, but the brevity results in under-specification. Effective conciseness would include brief parameter context.

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 has 5 parameters (4 required), no schema description coverage, no annotations, but an output schema, the description is insufficient. It fails to explain the purpose of each parameter or any behavioral context. While it mentions return values, it does not cover the input side at all.

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%, and the description adds no information about the five parameters (client, protocol_version, app_version, app_data_root, workspace_root). It fails to explain the role or format of required fields, leaving the agent to guess their meanings.

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 performs a 'Handshake' and returns specific data (version, cache_root, capabilities). The verb is specific and the resource is well-defined. Among sibling tools like 'shutdown' and 'recipe_read', this tool is distinct as an initialization function.

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 implies usage as a session initiation due to the name 'initialize' and its 'Handshake' metaphor, but it provides no explicit guidance on when to use it versus alternatives, nor any prerequisites or exclusions. Usage is implied but not clarified.

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