Save Snapshot

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

With no annotations provided, the description carries the transparency burden. It discloses a notable behavioral trait: 'API keys are redacted before writing.' However, it does not mention overwrite behavior, file location, or return values, though these are less critical for a simple snapshot save.

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 two sentences, front-loaded with the main purpose. Every sentence adds value: the first states the action and target, the second explains how to obtain data and the redaction behavior. No wasted words.

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 simple tool with no output schema and no annotations, the description is largely complete: it states the action, what data to pass, and an important post-processing detail (redaction). Missing return value/error info is a minor gap, but the tool's simplicity reduces the risk of misuse.

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 coverage is 100%, so baseline is 3. The description adds extra meaning by specifying that 'data' comes from running the pl_export script in the browser, which clarifies how to obtain and pass the parameter. The 'label' parameter is already described in the schema.

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 'Save ProjectionLab export data as a local snapshot file,' using a specific verb and resource. It distinguishes from sibling tools (pl_export, pl_list_snapshots, pl_restore) by indicating this tool writes data to a local snapshot.

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 instruction 'Pass the data you got from running the pl_export script in the browser' provides clear context of when to use this tool, tying it to the pl_export workflow. It does not explicitly mention exclusions or alternatives, but the sibling names make the intended use clear.

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