checkpoint_save

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

No annotations are present, so the description carries the burden. It clearly explains the side effect (saving a named .zprj checkpoint to a path) and the purpose, but does not mention overwrite behavior, name default, limits, or what happens if save fails.

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?

Single sentence, front-loaded with the action, and compactly adds the file path, audience, and undo use-case. No filler or repetition.

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 one optional-parameter tool, the description provides enough to invoke it for the intended purpose: save a named checkpoint to a known path, then restore later. But it omits behavior for the default empty name, possible return value, or error cases; still, low complexity limits the impact.

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 has only an optional 'name' with default '' and 0% schema description coverage. The description adds that the checkpoint is 'named', so `name` identifies the checkpoint, but it does not explain what happens when name is omitted or any naming constraints.

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?

States a clear action: save the current project as a named checkpoint. It also gives the exact location (.zprj under ~/.clo3d-mcp/checkpoints) and explicitly ties the tool to undo via checkpoint_restore, which distinguishes it from sibling tools.

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 when to use it: before an edit or seam operation that might fail徒 so it can be undone later. It names the companion tool (checkpoint_restore), though it does not explicitly list exclusions or alternative cases.

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