insertImageInDocument

Insert an image into a document (max 10MB). Provide imageBase64, imageBinary, or imageUrl. For large files, call createImageUploadSession first then use the returned assetUrl.

SERVERStable Baseline SOURCEhttps://api.stablebaseline.io/functions/v1/cloud-serve/mcp

Medium RISK CLASS

Category Write

Parameters 123 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-stablebaseline-sb/insertimageindocument.md

WHAT IT DOES

What insertImageInDocument does on Stable Baseline

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

Parameter	Type	Required	Description
`alt`	string	—	Alt text. Defaults to caption.
`align`	string	—	Alignment. Default: center.
`width`	number	—	Width in pixels.
`height`	number	—	Height in pixels.
`caption`	string	Yes	Caption below the image.
`fileName`	string	—	Original filename.
`imageUrl`	string	—	URL to fetch image from, or assetUrl from createImageUploadSession.
`afterLine`	number	—	Insert after this line (0 = beginning, omit = end).
`documentId`	string	Yes
`imageBase64`	string	—	Base64-encoded image data. Mutually exclusive with imageBinary/imageUrl.
`imageBinary`	array	—	Raw binary as byte array. Mutually exclusive with imageBase64/imageUrl.
`nlDescription`	string	Yes	Description of image content for semantic search.

Parameters from the server's own tool schema.

RISK

Why insertImageInDocument is rated Medium

This tool creates or modifies document content by inserting images, which is a reversible write operation. The 10MB file size limit and asset management flow (createImageUploadSession) indicate structured document modification rather than destructive deletion. Severity is medium because bulk image insertion could clutter or degrade document organization, but changes are reversible through standard document editing.

From the tool's definition Tool name 'insertImageInDocument' and description states it 'Insert an image into a document', which is a create/modify operation on document content. The tool modifies existing documents by adding image assets to them.

Risk signalsAccepts file system path (fileName) · High parameter count (13 properties)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs insertImageInDocument safely

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

insertImageInDocument Rate-limited

insertImageInDocument 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": {
    "insertImageInDocument": {
      "limits": [
        {
          "counter": "insertimageindocument_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 Stable Baseline, apply this rule, and every insertImageInDocument call is checked against it from then on.

FAQ

Questions about insertImageInDocument

What does the insertImageInDocument tool do? +

Insert an image into a document (max 10MB). Provide imageBase64, imageBinary, or imageUrl. For large files, call createImageUploadSession first then use the returned assetUrl. It is categorised as a Write tool in the Stable Baseline MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does insertImageInDocument accept? +

insertImageInDocument accepts 12 parameters: alt, align, width, height, caption, fileName, imageUrl, afterLine, documentId, imageBase64, imageBinary, nlDescription. Required: caption, documentId, nlDescription. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on insertImageInDocument? +

Register the Stable Baseline MCP server in PolicyLayer and add a rule for insertImageInDocument: 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 Stable Baseline. Nothing to install.

What risk level is insertImageInDocument? +

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

Can I rate-limit insertImageInDocument? +

Yes. Add a rate_limit block to the insertImageInDocument 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 insertImageInDocument completely? +

Set action: deny in the PolicyLayer policy for insertImageInDocument. 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 insertImageInDocument? +

insertImageInDocument is provided by the Stable Baseline MCP server (https://api.stablebaseline.io/functions/v1/cloud-serve/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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