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Headless Colab MCP Server

colab-mcp is a FastMCP server for controlling Google Colab notebooks through a secure, headless WebSocket architecture. Agents can create, edit, run, and inspect notebook cells without browser automation or UI scraping.


Features

  • Headless Operation — Run notebook operations through a secure WebSocket proxy

  • Zero Browser Management — No Chromium, browser profiles, or DOM scraping

  • ML-Ready Tooling — Workspace setup, dataset handling, and pipeline execution

  • Structured Results — Typed stdout, stderr, file paths, and error details

  • FastMCP Integration — Clean MCP server interface for tool composition


Related MCP server: JupyterMCP

Architecture

The server uses two cooperating layers:

ColabSessionProxy

  • Starts a localhost WebSocket server

  • Generates a one-time connection URL with mcpProxyToken and mcpProxyPort

  • Waits for an authenticated Colab tab to attach

NotebookController

  • Exposes the stable MCP tool surface

  • Discovers proxy capabilities from the connected Colab frontend

  • Maps server-owned tools to proxy-backed cell operations

  • Falls back to direct runtime execution only when needed


Requirements

Requirement

Version

Python

3.13+

uv

Latest

Google Colab

Active browser session


Installation

uv sync
uv run colab-mcp

Configuration

Add this to your MCP configuration:

{
  "mcpServers": {
    "colab-mcp-local": {
      "command": "uv",
      "args": ["run", "colab-mcp"],
      "cwd": "${workspaceFolder}",
      "timeout": 30000
    }
  }
}

API Reference

Core Notebook Tools

Tool

Description

connect_colab(notebook_url?)

Initialize connection and retrieve proxy URL

list_colab_cells()

List all cells in the notebook

read_colab_cell(cell_id)

Read a specific cell

write_colab_cell(code, cell_id?, mode?)

Write code to a cell

run_colab_cell(cell_id?, wait?, timeout_seconds?)

Execute a cell

run_colab_code(code, mode?, wait?, timeout_seconds?)

Write and execute code in one step

get_colab_output(cell_id?)

Retrieve execution output

save_colab_notebook()

Save the notebook

run_runtime_code(code)

Execute code directly in the runtime

ML Workflow Tools

Tool

Description

setup_ml_workspace(packages)

Install packages and create standard data directories

fetch_remote_dataset(download_url, extract_to)

Download and extract datasets

execute_ml_pipeline(code_block)

Execute Python blocks with structured results


Usage

  1. Start the MCP server.

  2. Call connect_colab to get a connect_url, proxy_token, and proxy_port.

  3. Paste the connect_url into an active Colab tab.

  4. Wait for the proxy connection to establish.

  5. Run notebook operations through the MCP tools.

Example

uv run colab-mcp
connect_colab()
setup_ml_workspace(["pandas", "scikit-learn"])
fetch_remote_dataset(url, "/content/data")
execute_ml_pipeline(training_code)
get_colab_output()

Development & Verification

PYTHONPATH=src python scripts/smoke_test.py
PYTHONPATH=src py -m pytest
cat RELEASE_CHECKLIST.md

Test coverage

  • Proxy capability discovery

  • Native Colab argument mapping

  • Cell ID extraction

  • ML tool routing through proxy

  • Execution result normalization


License

This project is licensed under the Apache License 2.0.


Acknowledgments

This headless WebSocket proxy architecture was inspired by the open-source work provided by the Google Colab team.

Available Tools

13 tools
connect_colabD
ParametersJSON Schema
NameRequiredDescriptionDefault
notebook_urlNo

Output Schema

ParametersJSON Schema
NameRequiredDescription
backendNo
messageNo
connectedYes
proxy_portNo
connect_urlNo
proxy_tokenNo
capabilitiesNo
notebook_urlNo
proxy_connectedNo
browser_attachedNo

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

execute_ml_pipelineD
ParametersJSON Schema
NameRequiredDescriptionDefault
code_blockYes

Output Schema

ParametersJSON Schema
NameRequiredDescription
statusYes
stderrNo
stdoutNo
tracebackNo
error_nameNo
error_valueNo
raw_executionNo
generated_file_pathsNo

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

fetch_remote_datasetD
ParametersJSON Schema
NameRequiredDescriptionDefault
extract_toYes
download_urlYes

Output Schema

ParametersJSON Schema
NameRequiredDescription
statusYes
stderrNo
stdoutNo
cell_idNo
tracebackNo
error_nameNo
error_valueNo
text_resultNo
display_itemsNo
execution_countNo
raw_backend_payloadNo

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

get_colab_outputD
ParametersJSON Schema
NameRequiredDescriptionDefault
cell_idNo

Output Schema

ParametersJSON Schema
NameRequiredDescription
statusYes
stderrNo
stdoutNo
cell_idNo
tracebackNo
error_nameNo
error_valueNo
text_resultNo
display_itemsNo
execution_countNo
raw_backend_payloadNo

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

list_colab_cellsD
ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

open_colab_browser_connectionA

Checks whether a Google Colab proxy session is already connected. Returns a boolean representing whether the headless proxy connection is available.

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

A4.2/5.0
Behavior4/5

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

With no annotations provided, the description carries the full burden. It clearly discloses that the tool returns a boolean indicating headless proxy connection availability, and it implies a read-only check with no side effects. However, it does not explicitly mention safety or lack of side effects, though this is implied for a status check.

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?

The description is two sentences, front-loaded with the purpose, and every word adds value. There is no redundancy or filler.

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?

The tool is simple (no params) and has an output schema (though not shown). The description adequately covers the tool's purpose and return value. It lacks explicit usage guidance, but that is covered in the usage dimension. Overall, it is complete for a low-complexity tool.

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

Parameters4/5

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

The tool has zero parameters, making the input schema trivially complete. The description adds no parameter-specific detail, but none is needed. The baseline for 0 params is 4, and the description appropriately focuses on the return value rather than parameters.

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?

The description clearly states the tool performs a check on a Google Colab proxy session and explicitly mentions it returns a boolean about connection availability. This is specific and distinct from sibling tools like connect_colab (which establishes a connection) and read_colab_cell (which reads content).

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?

The description implies the tool is used to verify whether a proxy connection already exists, but it does not explicitly state when to use it versus alternatives like connect_colab. It provides context but lacks clear 'use this before connecting' or 'use to check status' guidance.

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

read_colab_cellD
ParametersJSON Schema
NameRequiredDescriptionDefault
cell_idYes

Output Schema

ParametersJSON Schema
NameRequiredDescription
codeNo
cell_idYes
outputsNo
previewNo
cell_typeNo
execution_countNo

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

run_colab_cellD
ParametersJSON Schema
NameRequiredDescriptionDefault
waitNo
cell_idNo
timeout_secondsNo

Output Schema

ParametersJSON Schema
NameRequiredDescription
statusYes
stderrNo
stdoutNo
cell_idNo
tracebackNo
error_nameNo
error_valueNo
text_resultNo
display_itemsNo
execution_countNo
raw_backend_payloadNo

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

run_colab_codeD
ParametersJSON Schema
NameRequiredDescriptionDefault
codeYes
modeNoappend
waitNo
timeout_secondsNo

Output Schema

ParametersJSON Schema
NameRequiredDescription
statusYes
stderrNo
stdoutNo
cell_idNo
tracebackNo
error_nameNo
error_valueNo
text_resultNo
display_itemsNo
execution_countNo
raw_backend_payloadNo

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

run_runtime_codeD
ParametersJSON Schema
NameRequiredDescriptionDefault
codeYes

Output Schema

ParametersJSON Schema
NameRequiredDescription
statusYes
stderrNo
stdoutNo
cell_idNo
tracebackNo
error_nameNo
error_valueNo
text_resultNo
display_itemsNo
execution_countNo
raw_backend_payloadNo

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

save_colab_notebookD
ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

Output Schema

ParametersJSON Schema
NameRequiredDescription
messageNo
successYes
notebook_urlNo

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

setup_ml_workspaceD
ParametersJSON Schema
NameRequiredDescriptionDefault
packagesYes

Output Schema

ParametersJSON Schema
NameRequiredDescription
statusYes
stderrNo
stdoutNo
cell_idNo
tracebackNo
error_nameNo
error_valueNo
text_resultNo
display_itemsNo
execution_countNo
raw_backend_payloadNo

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

write_colab_cellD
ParametersJSON Schema
NameRequiredDescriptionDefault
codeYes
modeNoappend
cell_idNo

Output Schema

ParametersJSON Schema
NameRequiredDescription
codeNo
cell_idYes
outputsNo
previewNo
cell_typeNo
execution_countNo

TDQS

D1/5.0
Behavior1/5

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

Tool has no description.

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

Conciseness1/5

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

Tool has no description.

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

Completeness1/5

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

Tool has no description.

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

Parameters1/5

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

Tool has no description.

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

Purpose1/5

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

Tool has no description.

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

Usage Guidelines1/5

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

Tool has no description.

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

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 13 tool updatesv0.1.0
    • First observedconnect_colab
    • First observedexecute_ml_pipeline
    • First observedfetch_remote_dataset
    • First observedget_colab_output
    • First observedlist_colab_cells
    • First observedopen_colab_browser_connection
    • First observedread_colab_cell
    • First observedrun_colab_cell
    • First observedrun_colab_code
    • First observedrun_runtime_code
    • First observedsave_colab_notebook
    • First observedsetup_ml_workspace
    • First observedwrite_colab_cell

TDQS

D1.7/5.0

Scored across 13 tools

Disambiguation2/5

Several tools appear to serve similar purposes: run_colab_cell, run_colab_code, run_runtime_code, and execute_ml_pipeline all seem to execute code, while connect_colab and open_colab_browser_connection overlap in establishing/checking a connection. Without descriptions, it's hard for an agent to pick the right tool.

Naming Consistency3/5

Most tools follow a verb_noun snake_case pattern, but there's inconsistency: some include 'colab' (e.g., list_colab_cells) while others do not (e.g., setup_ml_workspace, fetch_remote_dataset). Also, the verbs vary widely, making the naming feel less systematic than a strict verb_noun convention.

Tool Count4/5

13 tools is within a reasonable range for a Colab-focused server. However, the presence of four overlapping execution tools inflates the count and suggests some consolidation could improve the set without losing functionality.

Completeness3/5

The tool surface covers core cell operations (read, write, run, output) and notebook saving, but lacks obvious lifecycle operations like deleting a cell or creating a notebook. The ML-related tools (setup workspace, fetch dataset, pipeline) add breadth but also introduce unclear boundaries and gaps, such as no explicit tool for managing datasets beyond fetching.

Maintenance

ActivityMaintained
ResponsivenessNo issues

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