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

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions cloning and returning a tree structure but fails to detail critical aspects like whether it performs a full clone (which could be resource-intensive), how it handles errors (e.g., invalid URLs), authentication needs, rate limits, or the format of the returned tree. This leaves significant gaps in understanding the tool's behavior.

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 conveys the core functionality without unnecessary words. It is front-loaded with the main action and outcome, making it easy to grasp quickly, and there is no wasted information.

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 no annotations and no output schema, the description is incomplete. It doesn't explain what the returned tree format looks like, potential side effects of cloning, error handling, or performance considerations. Given the complexity of Git operations and the lack of structured data, more detail is needed to adequately inform an agent.

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 has 100% description coverage, with 'repo_url' clearly documented. The description adds minimal value beyond the schema by implying the URL is used for cloning, but it doesn't provide additional context such as supported URL formats (e.g., HTTPS vs. SSH) or examples. Given the high schema coverage, a baseline score of 3 is appropriate.

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 ('Clone a Git repository') and the outcome ('return its directory structure in a tree format'), making the purpose specific and understandable. However, it doesn't explicitly differentiate from the sibling tool 'git_read_important_files', which might have overlapping functionality, so it doesn't reach the highest score.

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 like 'git_read_important_files' or other Git-related operations. It lacks context on prerequisites, such as needing network access or Git installed, and doesn't specify any exclusions or when not to use it.

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

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions reading file contents but doesn't specify important behaviors like error handling (e.g., what happens if files don't exist), authentication requirements, rate limits, or output format. This leaves significant gaps for a tool that interacts with external repositories.

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, clear sentence that efficiently conveys the core functionality without unnecessary words. It's front-loaded with the essential action and resource, making it easy for an agent to parse quickly. Every word earns its place.

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 interacting with git repositories (external systems, potential errors, authentication), the description is incomplete. With no annotations and no output schema, it fails to address critical aspects like return values, error conditions, or security requirements, leaving the agent under-informed for safe and effective use.

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 input schema already documents both parameters thoroughly. The description adds no additional semantic context beyond what's in the schema (e.g., it doesn't clarify path conventions or URL formats), resulting in the baseline score of 3 for adequate but non-enhancing parameter documentation.

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 ('Read the contents') and resource ('specified files in a given git repository'), making the purpose immediately understandable. It doesn't differentiate from the sibling tool 'git_directory_structure', which appears to serve a different purpose (listing structure vs reading file contents), so it earns a 4 rather than a 5.

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 or any contextual prerequisites. It simply states what the tool does without indicating scenarios where it's appropriate or inappropriate, leaving the agent to infer usage from the tool name and parameters alone.

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