read_notebook_file

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

With no annotations, the description carries the full burden of behavioral disclosure. It usefully reveals that this works without opening a kernel session and defines what each mode returns (headings only, code cells only, etc.). It does not describe failure behavior or provide much detail beyond the mode list, but the core behavioral differentiation is well covered.

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 compact: a one-sentence core behavior, a mode list with clarifying parentheticals, and a routing note. Every element earns its place and the most important behavioral trait is front-loaded.

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 output schema exists, so return format does not need to be described. The description covers the tool's central non-evaluation behavior.Paginaking semantics are the only notable gap, and path is inferable from the tool name and description. This is nearly complete for a read-only file inspection 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 does map the mode enum to meaningful behavior, which is valuable. However, path, limit, and offset are left semantically unexplained; limit and offset strongly suggest pagination but the description never says so.

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 a .nb file from disk" and immediately adds the key scoping trait "without opening a kernel session for it." The mode list further clarifies what the tool produceschery. This clearly distinguishes it from the evaluate and notebooks siblings.

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?

It explicitly tells the agent when not to use this tool: "Use notebooks(action='open') instead when you intend to evaluate anything." This is an unambiguous routing signal that mentions the relevant alternative tool and the condition that selects it.

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