checkin_document

THE RISK

Medium Risk

Why checkin_document needs a policy

Checking in a document creates a new version in the version control system, which is a reversible write operation. It commits edits and updates the document state, but the previous version is retained in version history, making it reversible. Severity is medium because it modifies document content and version state in a content management system.

From the tool's definition Check in a document after editing using Alfresco REST API

Documented attack patterns abuse exactly the kind of access checkin_document gives an agent:

POLICY

How to control checkin_document

PolicyLayer is an MCP gateway — it sits between your AI agents and Alfresco MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for checkin_document:

policy.json

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

checkin_document 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.

Create a free account and register Alfresco MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

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EXPLORE

Related tools and policies

More Alfresco MCP Server tools

Destructive cancel_checkout Cancel checkout of a document, discarding any working copy. Destructive delete_node Delete a document or folder from Alfresco. Execute cmis_search Search using CMIS SQL syntax. Default query searches for PDF documents. Write checkout_document Check out a document for editing using Alfresco REST API. Write create_folder Create a new folder in Alfresco. Write update_node_properties Update metadata and properties of a document or folder. Write upload_document Upload a document to Alfresco. Read advanced_search Advanced search with sorting and filtering capabilities.

All 15 Alfresco MCP Server tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about checkin_document

What does the checkin_document tool do? +

Check in a document after editing using Alfresco REST API. It is categorised as a Write tool in the Alfresco MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on checkin_document? +

Register the Alfresco MCP Server MCP server in PolicyLayer and add a rule for checkin_document: 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 Alfresco MCP Server. Nothing to install.

What risk level is checkin_document? +

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

Can I rate-limit checkin_document? +

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

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

checkin_document is provided by the Alfresco MCP Server MCP server (stevereiner/python-alfresco-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Alfresco MCP Server tool call.

Start from Alfresco MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →