get_graph_at_time

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

With no annotations, the description must disclose behavioral traits. It only states the basic read operation (getting a historical snapshot) but does not mention side effects, rate limits, permissions, or data completeness (e.g., whether all entities/relations are returned). The description is minimal and does not add value beyond the purpose.

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 a single sentence that is front-loaded and contains no filler. Every word is essential and directly conveys the tool's purpose.

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 a single parameter with full schema description and no output schema, the description adequately conveys the tool's function. However, it could be more specific about the output format (e.g., returns a graph object with entities and relations). The simplicity of the tool makes the description mostly complete.

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 schema covers 100% of parameters, with the 'timestamp' parameter described clearly as milliseconds since epoch. The description adds no additional meaning beyond the schema's parameter documentation. Baseline 3 is appropriate.

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 retrieves the knowledge graph as it existed at a specific point in time. The verb 'Get' and resource 'knowledge graph' with a temporal qualifier make the purpose unambiguous, and it distinguishes from sibling tools like 'read_graph' (current graph).

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 explicit guidance on when to use this tool versus alternatives like 'read_graph' or 'get_decayed_graph'. The description implies it is for historical queries but does not state when not to use it or provide context for selecting among siblings.

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