Create git checkpoint

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 indicates the tool creates a git tag for rollback purposes, implying a write operation that is non-destructive (tags can be removed). However, it does not explain failure modes, authentication needs, or what happens if the label already exists. This is adequate but could be more transparent.

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 front-loads the action and purpose. It contains no filler or redundant information, making it highly efficient for an AI agent to parse.

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 (2 parameters, no required params, no output schema) and the context of sibling tools (which include related upgrade and checkpoint operations), the description is moderately complete. It covers the core purpose and rolls back context but lacks parameter details and edge-case behavior, resulting in a somewhat complete but not fully thorough description.

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 compensate. It does not explain the 'label' parameter beyond its existence, nor 'rootPath' at all. The schema has a default for 'label' ('pre-upgrade'), which is helpful but not described. The description adds no meaning beyond what the schema minimally provides.

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 ('Tag current HEAD') and its purpose ('so the upgrade can be rolled back if needed'). It distinguishes from tools like 'restore_checkpoint' and 'list_checkpoints' by focusing on creation. However, it does not explicitly mention that this creates a git tag, which would be more precise.

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 during upgrades by mentioning 'the upgrade can be rolled back,' which provides some context. However, it lacks explicit guidance on when to use this tool versus alternatives like 'restore_checkpoint,' and does not specify prerequisites 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.