get_context_at

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

No annotations are provided, so the description must fully disclose behavioral traits. It states 'Load' and explains parameter behavior for as_of and match, but does not mention side effects, permissions, rate limits, or what happens if the snapshot is not found. As a read operation, it could explicitly state read-only to aid agent reasoning.

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?

Two sentences with no wasted words. The first sentence states the purpose, the second adds critical parameter detail. Front-loaded and efficient.

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?

Given 6 parameters, no schema descriptions, no annotations, and an output schema present, the description is incomplete. It covers only two parameters and does not hint at the output shape (though output schema exists). It also lacks any connection to sibling tools or context about when to use this tool.

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 0%, so the description must compensate. It adds meaning for as_of (ISO timestamp) and match (at_or_before returns latest on or before), but does not explain scope, assets, target_pct, or band. These four parameters have no description, leaving the agent to guess their purpose.

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 verb 'Load' and the resource 'a saved ContextBundle snapshot from ingest history', and provides specific parameter details (as_of timestamp, match behavior). The name and description differentiate it from siblings like get_context_bundle (likely latest) and get_context_delta (difference).

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?

No guidance on when to use this tool versus alternatives like get_context_bundle or get_context_delta. No mention of prerequisites or exclusions. The description only gives parameter hints without explicit usage context.

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