checkpoint_load

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

With no annotations, the description carries the full disclosure burden. 'Loads ... to inspect' usefully signals an inspection/read intent, resolving some ambiguity about whether loading restores state, but it never states whether calling this mutates current state, what happens on an unknown ID, or whether it is safe/idempotent.

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 efficient sentence with the verb and identifier up front and the intent trailing. It is appropriately sized for a one-parameter tool; nothing is wasted, though it is minimally informative rather than maximally compact.

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 one-param tool with no output schema, the description covers the core purpose but omits side-effect disclosure and any hint at what is returned or how to obtain a valid checkpoint ID. Adequate but with clear gaps given the lack of annotations.

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 description coverage is 100% for the single checkpointId parameter, so the schema already documents its meaning (ID of the checkpoint to load). The description adds no format, source, or example detail beyond the schema, so baseline 3 applies.

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+resource ('Loads a specific checkpoint by ID') plus the intent ('to inspect prior milestone state'), which cleanly separates it from the sibling checkpoint_create. It doesn't explicitly name or contrast with siblings, so it falls just short of a 5.

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 phrase 'to inspect prior milestone state' implies the usage context, but there is no explicit when-to-use guidance, no mention of when to prefer this over checkpoint_create or project_resume, and no preconditions (e.g., whether a checkpoint ID must come from a prior create).

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