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

The description adds substantial behavioral context beyond the annotations: it flags auth requirement, states idempotency explicitly, describes the client-omission result, and details the two bootstrap modes (protected one-time vs verifier-bound delegated). This enriches the agent's understanding of side effects and special cases without contradicting the annotations.

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 concise at three sentences, front-loaded with 'AUTH REQUIRED; IDEMPOTENT PROJECT CONNECTION WRITE.' Each sentence delivers distinct, essential information without filler or redundancy. The structure effectively highlights the tool's critical attributes.

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 6 params, oneOf selectors, and a complex flow, the description covers the core purpose, return type, and client selection edge case. The schema and output schema fill remaining details like parameter syntax and return structure, so the description is sufficiently complete. It could be improved by explicitly mentioning the prerequisite of a prepared project (bootstrapChallenge), but that is implied via schema.

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 parameters. The description adds minimal parameter-specific guidance beyond restating 'installer client' and omission behavior, which is already in the client property description. It earns the baseline 3.

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 uses a specific verb+resource ('Prepares one accessible Spala project for agent access') and clearly identifies the deliverable (client-specific workspace binding plan). It distinguishes itself from siblings by referencing installer clients and the project connection flow, making its unique role clear.

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 gives clear context on when to use the tool (preparing a project for agent access) and describes behavior when the client is omitted. It doesn't explicitly name alternatives or exclusions, but the context is sufficient for an agent to infer appropriate usage.

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