Medium Risk

prismism_publish

Upload a file and get a shareable, tracked link. Supports PDF, HTML, Markdown, images (PNG/JPG/GIF/SVG/WebP), and video (MP4). Send content as plain text (default) or base64 for binary files.

Accepts raw HTML/template content (content); Accepts file system path (filename)

Part of the Prismism MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

@prismism/mcp-server Write Risk 3/5

AI agents use prismism_publish to create or modify resources in Prismism. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

Without a policy, an AI agent could call prismism_publish repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Prismism.

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

prismism.yaml
tools:
  prismism_publish:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Prismism policy for all 8 tools.

Tool Name prismism_publish
Category Write
MCP Server Prismism MCP Server
Risk Level Medium

Agents calling write-class tools like prismism_publish have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

Other tools in the Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

What does the prismism_publish tool do? +

Upload a file and get a shareable, tracked link. Supports PDF, HTML, Markdown, images (PNG/JPG/GIF/SVG/WebP), and video (MP4). Send content as plain text (default) or base64 for binary files.. It is categorised as a Write tool in the Prismism MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on prismism_publish? +

Add a rule in your Intercept YAML policy under the tools section for prismism_publish. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Prismism MCP server.

What risk level is prismism_publish? +

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

Can I rate-limit prismism_publish? +

Yes. Add a rate_limit block to the prismism_publish rule in your Intercept 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 prismism_publish completely? +

Set action: deny in the Intercept policy for prismism_publish. 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 prismism_publish? +

prismism_publish is provided by the Prismism MCP server (@prismism/mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Prismism

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
// GET IN TOUCH

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