set_project_path

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

With no annotations, the description must disclose behavioral traits. It mentions that it initializes index state but does not detail whether this operation is destructive (overwrites previous state), requires specific permissions, or has side effects on other tools. The description is lacking in transparency.

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 extremely concise with two short sentences. The instruction 'Call this first' is front-loaded, making it immediately actionable. Every word earns its place; no fluff.

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?

The tool has an output schema, so return values don't need full description, but the description should clarify what 'initializes the available index state' entails. It lacks information on expected outcomes, error conditions, or state changes. The description is incomplete given the tool's role as a setup step.

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%, so the description must explain the 'path' parameter. It does not mention what 'path' should be (e.g., absolute/relative, directory/file, local/remote). The description only says 'Sets the active repo' without linking to the parameter. This is inadequate for correct invocation.

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: 'Sets the active repo and initializes the available index state.' This distinguishes it from sibling tools which are for searching, building indexes, etc. The instruction 'Call this first' further clarifies its role as a setup step.

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 explicitly says 'Call this first', indicating it should be used before other tools. However, it does not provide explicit when-not-to-use scenarios or alternatives, but given its nature as a setup tool, the guidance is clear.

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