Skip to main content
Glama
datalayer

Jupyter MCP Server

by datalayer
OverviewSchemaRelated ServersScoreDiscussions
Python
Hybrid

insert_execute_code_cell

Destructive

Insert a code cell at a given index in the active notebook and execute it with a configurable timeout, returning the cell outputs.

Instructions

Insert a cell at specified index from the currently activated notebook and then execute it with timeout and return it's outputs It is a shortcut tool for insert_cell and execute_cell tools, recommended to use if you want to insert a cell and execute it at the same time

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
timeoutNoMaximum seconds to wait for execution (0 = use config default)
cell_indexYesIndex of the cell to insert and execute (0-based)
cell_sourceYesCode source for the cell

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Addedv1.0.7
  2. Removedv1.0.6
  3. Changed3 schema fields changedv1.0.4
    • changedInput schema / properties / timeout / default
      Previous value: -90New value: +0
    • changedInput schema / properties / timeout / description
      Previous value: -"Maximum seconds to wait for execution"New value: +"Maximum seconds to wait for execution (0 = use config default)"
    • changedOutput schema / (root)
      Previous value: -{
-  "$defs": {
-    "Annotations": {
-      "additionalProperties": true,
-      "properties": {
-        "audience": {
-          "anyOf": [
-            {
-              "items": {
-                "enum": [
-                  "user",
-                  "assistant"
-                ],
-                "type": "string"
-              },
-              "type": "array"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "title": "Audience"
-        },
-        "priority": {
-          "anyOf": [
-            {
-              "maximum": 1,
-              "minimum": 0,
-              "type": "number"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "title": "Priority"
-        }
-      },
-      "title": "Annotations",
-      "type": "object"
-    },
-    "ImageContent": {
-      "additionalProperties": true,
-      "description": "Image content for a message.",
-      "properties": {
-        "_meta": {
-          "anyOf": [
-            {
-              "additionalProperties": true,
-              "type": "object"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null,
-          "title": "Meta"
-        },
-        "annotations": {
-          "anyOf": [
-            {
-              "$ref": "#/$defs/Annotations"
-            },
-            {
-              "type": "null"
-            }
-          ],
-          "default": null
-        },
-        "data": {
-          "title": "Data",
-          "type": "string"
-        },
-        "mimeType": {
-          "title": "Mimetype",
-          "type": "string"
-        },
-        "type": {
-          "const": "image",
-          "title": "Type",
-          "type": "string"
-        }
-      },
-      "required": [
-        "type",
-        "data",
-        "mimeType"
-      ],
-      "title": "ImageContent",
-      "type": "object"
-    }
-  },
-  "properties": {
-    "result": {
-      "description": "List of outputs from the executed cell",
-      "items": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "$ref": "#/$defs/ImageContent"
-          }
-        ]
-      },
-      "title": "Result",
-      "type": "array"
-    }
-  },
-  "required": [
-    "result"
-  ],
-  "title": "insert_execute_code_cellOutput",
-  "type": "object"
-}New value: +null
  4. First observedv1.0.0

TDQS

A4/5.0
Behavior3/5

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

Annotations already include destructiveHint: true, so description does not need to add that. It does mention timeout and returning outputs, which adds some context beyond annotations. However, it does not disclose blocking behavior or error scenarios.

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. All information is relevant and front-loaded.

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

Completeness4/5

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

Given 3 params, full schema coverage, no output schema, and sibling tools, the description adequately explains purpose, usage, and relationship to siblings. It does not define 'currently activated notebook' but that may be assumed from context.

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

Parameters3/5

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

Schema covers all three parameters with descriptions (100% coverage). The description adds 'with timeout' and 'specified index' but no new information beyond the schema's descriptions.

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

Purpose5/5

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

Description clearly states verb 'Insert a cell and then execute it', identifies the resource (cell in activated notebook), and explicitly calls it a shortcut for insert_cell and execute_cell, distinguishing it from siblings.

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

Usage Guidelines4/5

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

Description recommends using this tool when you want to insert and execute simultaneously. It names alternative tools (insert_cell, execute_cell) but does not explicitly state 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.

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/datalayer/jupyter-mcp-server'

If you have feedback or need assistance with the MCP directory API, please join our Discord server