Publish a new article on Medium using browser automation
AI agents use publish-article to create or update resources in Medium MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Medium MCP Server environment.
This tool creates new content on Medium that is reversible (articles can be deleted or unpublished), making it a Write operation rather than Destructive. The severity is medium because misuse could spam the platform or post unauthorized content, but the effects are not irreversible and do not involve financial transactions or code execution. Confidence is high due to explicit language about publishing articles.
From the tool's definition Tool name is 'publish-article' and description states 'Publish a new article on Medium using browser automation'. The verb 'publish' indicates creating new content that will be publicly posted.
Documented attack patterns abuse exactly the kind of access publish-article gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Medium MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for publish-article:
{
"version": "1",
"default": "deny",
"tools": {
"publish-article": {
"limits": [
{
"counter": "publish-article_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}publish-article 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.
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Publish a new article on Medium using browser automation. It is categorised as a Write tool in the Medium MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Medium MCP Server MCP server in PolicyLayer and add a rule for publish-article: 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 Medium MCP Server. Nothing to install.
publish-article is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the publish-article 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.
Set action: deny in the PolicyLayer policy for publish-article. 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.
publish-article is provided by the Medium MCP Server MCP server (jackyckma/medium-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Medium MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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5 Medium MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.