load_checkpoint

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

With no annotations provided, the description carries full burden. It discloses that the operation is read-only, does not modify ARCHIVE/CHECKPOINTS, and that filtering tools work within the checkpoint's time window. This adequately informs the agent of key behavioral traits.

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 three sentences, efficiently conveying purpose, key constraints, and reversal option. It is front-loaded with the main action. Could be slightly more structured but very concise.

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 one required parameter and an existing output schema, the description covers all essential aspects: what it does, how to use it, its read-only nature, and how to switch back. It is complete given the tool's simplicity.

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 single parameter checkpoint_id has a description explaining it comes from list_checkpoints' id field. This adds value beyond the schema (which has no description), making it clear how to obtain the correct value.

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 tool switches CACHE to a specified checkpoint, enabling filtering tools within that time window. It distinguishes itself from sibling tools like harvest_data (revert to latest) and list_checkpoints (get checkpoint IDs).

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 explains the context for using the tool: to load a checkpoint for read-only backtracking, and mentions that harvest_data() can be called to revert. It lacks explicit 'when not to use' but provides sufficient guidance for an agent.

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