create_checkpoint

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

No annotations are provided, so the description carries the full burden. It mentions creating a checkpoint for restoration, which implies a write operation, but does not disclose behavioral traits such as whether it overwrites existing checkpoints, requires specific permissions, has side effects, or details about the snapshot process (e.g., performance impact). This leaves significant gaps for a mutation tool.

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, efficient sentence that front-loads the key information ('Create a filesystem checkpoint/snapshot') and adds purpose ('for quick restore') without unnecessary words. Every part earns its place, making it highly concise and well-structured.

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 a mutation tool (creating checkpoints) with no annotations and no output schema, the description is incomplete. It lacks details on what the tool returns, error conditions, or how the checkpoint integrates with other tools like 'restore_checkpoint'. For a tool that modifies state, more context is needed to guide 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?

The schema description coverage is 100%, so the schema already documents all parameters ('sprite', 'comment', 'org') with descriptions. The description does not add any additional meaning or context beyond what the schema provides, such as explaining how 'sprite' relates to VMs or the format of 'comment'. Baseline 3 is appropriate when the schema handles 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 specific action ('Create a filesystem checkpoint/snapshot') and the target resource ('Sprite VM'), distinguishing it from siblings like 'restore_checkpoint' (which reverses this action) and 'list_checkpoints' (which only reads). It uses precise terminology like 'for quick restore' to clarify the purpose.

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 by mentioning 'for quick restore,' suggesting it should be used when you need to save VM state for later recovery. However, it does not explicitly state when to use this tool versus alternatives like 'list_checkpoints' or 'restore_checkpoint,' nor does it provide exclusions or prerequisites.

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