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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and closed-world, so the safety profile is fully covered. The description adds bounded pagination and a sandbox-scoping caveat, which is useful context, but it does not disclose return ordering, total-count behavior, or what happens with the limit ceiling, leaving some behavioral gaps.

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 core purpose is front-loaded in the first sentence, but the second sentence is jargon-heavy ('sandbox@1') and reads as tangential to selecting this tool, diluting the signal. The overall length is acceptable but not maximally 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?

An output schema exists, so return values need not be explained, and annotations cover the safety profile. For a simple list tool the sandbox scoping and pagination note are adequate, but the entirely undocumented parameters and thin filtering semantics leave it only minimally 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?

Schema description coverage is 0%, so the description must compensate for three undocumented parameters. It only gestures at 'bounded pagination', which loosely maps to limit/offset, and says nothing about what the query string matches or how filtering works. This falls short of what a 0%-coverage schema requires.

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 states a specific verb and resource ('Read current source metadata and qualification') and scopes it to the connected sandbox workspace, so the agent knows this is a listing/enumeration tool. However, it does not explicitly differentiate itself from the other 'get_*' and listing siblings like get_usage or get_profile, so the boundary is left to inference.

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?

There is no explicit when-to-use statement or reference to an alternative sibling. The second sentence about catalog/production availability versus sandbox screening is a caveat about downstream screening behavior, not guidance on when to call list_sources itself. The agent must infer usage from context alone.

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