Backup SaveData

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

Annotations declare readOnlyHint=false and openWorldHint=false, so the write/local nature is already covered; the description usefully adds that backups are timestamped and land in a specific directory, implying non-destructive accumulation rather than overwrite. It does not say whether the destination folder is created if missing, whether the copy is atomic, or what happens on failure.

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?

A single short sentence with the source, destination and naming scheme front-loaded and no filler. Nothing can be removed without losing 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 zero-parameter backup tool with annotations covering the safety profile, the description covers the essential mechanics. It omits the return value (there is no output schema), specifically whether the generated backup path/timestamp is reported so the agent can later pass it to restore_savedata.

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 tool takes zero parameters and schema coverage is 100%, so there is nothing for the description to document; the baseline of 4 applies. The description correctly implies no input is required since source and destination are fixed.

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 specific verb (copy), a concrete source (tree.ehehetilde) and a concrete destination (UhhhhhhReanim/Backups/) plus the timestamping behavior, which goes beyond the title 'Backup SaveData'. It does not, however, reference the inverse sibling reanim_restore_savedata, so an agent must infer the pairing from the name alone.

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?

There is no when-to-use guidance, no prerequisites, and no mention of alternatives such as reanim_restore_savedata or reanim_get_savedata. The agent is left to infer that this is the pre-modification snapshot operation.

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