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insert_cell

Insert a new code or markdown cell at a specified index in a Jupyter notebook. Programmatically add cells in ascending order to maintain cell order.

Instructions

Insert a cell at the specified index. When inserting many cells, MUST insert them in ascending order of their index.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
cell_typeYes
cell_indexYesCell index to insert at (0-based)
cell_contentYes
notebook_nameYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior3/5

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

No annotations provided, so description carries burden. It discloses the ordering constraint but omits details like permissions, error handling, or idempotence.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences with no fluff. Purpose stated first, then additional constraint. Highly efficient.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Output schema exists, but description does not explain insertion behavior (e.g., index shifting) or return value. Adequate but not comprehensive for a mutation tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is low (25%) and description adds no parameter details beyond the schema. The ordering constraint is not parameter-specific.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

Clearly states 'Insert a cell at the specified index' with a specific verb and resource. While it does not explicitly differentiate from siblings, the action is unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Provides explicit guidance when inserting many cells (ascending order). However, lacks when-to-use vs alternatives or when not to use this tool.

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

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