create_line_chart

Create line chart for time series or continuous data

SERVERContextForge MCP Gateway SOURCEjrmatherly/mcp-context-forge

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/jrmatherly-mcp-context-forge/create-line-chart.md

WHAT IT DOES

What create_line_chart does on ContextForge MCP Gateway

AI agents use create_line_chart to create or update resources in ContextForge MCP Gateway, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your ContextForge MCP Gateway environment.

RISK

Why create_line_chart is rated Medium

This tool creates a new visualization artifact, which constitutes data creation/modification. However, the modification is reversible and non-destructive—charts can be deleted or regenerated. There is no code execution, deletion of data, financial impact, or external state modification beyond chart generation.

From the tool's definition Tool name 'create_line_chart' and description 'Create line chart for time series or continuous data' indicate an action that creates or generates a new artifact (a chart/visualization).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_line_chart safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ContextForge MCP Gateway, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_line_chart, this is the rule to start with:

create_line_chart Rate-limited

create_line_chart stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_line_chart": {
      "limits": [
        {
          "counter": "create_line_chart_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ContextForge MCP Gateway, apply this rule, and every create_line_chart call is checked against it from then on.

FAQ

Questions about create_line_chart

What does the create_line_chart tool do? +

Create line chart for time series or continuous data. It is categorised as a Write tool in the ContextForge MCP Gateway MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_line_chart? +

Register the ContextForge MCP Gateway MCP server in PolicyLayer and add a rule for create_line_chart: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ContextForge MCP Gateway. Nothing to install.

What risk level is create_line_chart? +

create_line_chart is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_line_chart? +

Yes. Add a rate_limit block to the create_line_chart rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block create_line_chart completely? +

Set action: deny in the PolicyLayer policy for create_line_chart. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides create_line_chart? +

create_line_chart is provided by the ContextForge MCP Gateway MCP server (jrmatherly/mcp-context-forge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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