get_linked_projects

THE RISK

Low Risk

Why get_linked_projects needs a policy

This tool only retrieves information about project relationships without modifying, creating, or deleting any data. It is a straightforward read operation that queries linked projects associated with the current project. No data modification, code execution, or destructive actions are possible.

From the tool's definition Tool is explicitly described as 'read-only' and 'View which projects are linked to the current project' indicates a retrieval operation with no side effects.

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

POLICY

How to control get_linked_projects

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_linked_projects": {}
  }
}

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

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

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Claude Slack tools

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All 19 Claude Slack tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_linked_projects

What does the get_linked_projects tool do? +

View which projects are linked to the current project (read-only). It is categorised as a Read tool in the Claude Slack MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_linked_projects? +

Register the Claude Slack MCP server in PolicyLayer and add a rule for get_linked_projects: 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 Claude Slack. Nothing to install.

What risk level is get_linked_projects? +

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

Can I rate-limit get_linked_projects? +

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

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

get_linked_projects is provided by the Claude Slack MCP server (theo-nash/claude-slack). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Claude Slack tool call.

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

CHECK YOUR STACK →