get_cloud_diagram_layer_snapshot

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

The annotations clearly label the tool as readOnlyHint=true and destructiveHint=false, so the safety profile is well established. The description adds minimal behavioral context by mentioning 'returns a single snapshot', but does not disclose details like validity guarantees, permissions required, or behavior on invalid IDs. Given annotation coverage, a score of 3 is appropriate.

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 extremely concise with two sentences that front-load the context and state the action without any wasted words. Every sentence serves a clear 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?

The description provides basic context about cloud diagrams and what the tool returns. However, it omits any indication of the output structure (no output schema exists), how this snapshot relates to other diagram tools, or typical use cases. It is minimally viable but lacks completeness for a tool with multiple siblings and no output schema.

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 only 33% (only customerContext has a description). The description does not explain what the required parameters 'id' and 'snapshot_id' represent or where to obtain them. It vaguely suggests 'by its ID', but adds no semantic value beyond the schema. Therefore, the description fails to compensate for the low schema coverage.

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 that the tool returns a single snapshot of a diagram layer by its ID, with a helpful introductory context about cloud diagrams. However, it does not explicitly differentiate this tool from siblings like list_cloud_diagram_layer_snapshots or get_cloud_diagram_components, which share the same domain.

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 is provided about when to use this tool versus alternatives such as list_cloud_diagram_layer_snapshots (which lists snapshots) or other diagram tools. There is no mention of prerequisites, context, or when not to use it.

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