Low Risk

openspec_read_cross_service_doc

Read a specific cross-service document content. Use openspec_list_cross_service_docs first to see available documents.

How to control openspec_read_cross_service_doc ↓

What openspec_read_cross_service_doc does on OpenSpec MCP

AI agents call openspec_read_cross_service_doc to retrieve information from OpenSpec MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why openspec_read_cross_service_doc needs a policy

This tool retrieves document content without side effects. It is a straightforward read operation that queries existing data. The recommendation to use openspec_list_cross_service_docs first confirms it is a lookup/retrieval function. No destructive, financial, or code execution capabilities are present.

From the tool's definition Tool name contains 'read' and description explicitly states 'Read a specific cross-service document content', with no modification, deletion, or execution capabilities mentioned.

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

How to control openspec_read_cross_service_doc

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "openspec_read_cross_service_doc": {}
  }
}

openspec_read_cross_service_doc is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register OpenSpec MCP — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about openspec_read_cross_service_doc

What does the openspec_read_cross_service_doc tool do? +

Read a specific cross-service document content. Use openspec_list_cross_service_docs first to see available documents. It is categorised as a Read tool in the OpenSpec MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on openspec_read_cross_service_doc? +

Register the OpenSpec MCP server in PolicyLayer and add a rule for openspec_read_cross_service_doc: 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 OpenSpec MCP. Nothing to install.

What risk level is openspec_read_cross_service_doc? +

openspec_read_cross_service_doc is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit openspec_read_cross_service_doc? +

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

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

openspec_read_cross_service_doc is provided by the OpenSpec MCP server (lumiaqian/openspec-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every OpenSpec MCP tool call.

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

Free to start. No card required.

40 OpenSpec MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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