package_uninstall

THE RISK

Critical Risk

Why package_uninstall needs a policy

Package uninstallation is a destructive operation that removes code, custom objects, workflows, and configurations from the org that cannot be easily undone. While some metadata might be recoverable via backups, the operation itself is irreversible in the standard Salesforce workflow and can break dependent functionality.

From the tool's definition Tool name 'package_uninstall' combined with description 'Uninstall a second-generation package from the target org' indicates irreversible removal of installed package functionality, code, and data transformations from a Salesforce organization.

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

POLICY

How to control package_uninstall

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

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "package_uninstall"
  ]
}

package_uninstall disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Salesforce 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.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Salesforce MCP Server tools

Destructive clear_default_org Clear the default target org from the Salesforce CLI configuration. After clearing, all to Destructive delete_record Delete a record from a Salesforce org using the REST API. Permanently removes the specifie Destructive logout Log out of a Salesforce org. Use targetOrg to logout of a specific org, or set all to true Execute deploy_start Deploy metadata to Salesforce org with test execution options. Execute execute_anonymous_apex Execute Apex code in a Salesforce Org. This command allows you to run Apex code directly a Execute run_apex_tests Run Apex tests in a Salesforce Org. This command allows you to execute unit tests with var Execute run_code_analyzer Analyze code for quality and security issues. Run list_code_analyzer_rules first to select Execute scanner_run Scan codebase with security and quality rules. Defaults to all rules if none specified.

All 41 Salesforce MCP Server tools →

Destructive tools on other servers

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Go deeper

Critical-risk tools in Salesforce MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about package_uninstall

What does the package_uninstall tool do? +

Uninstall a second-generation package from the target org. Specify the package ID (starts with 04t) or alias for the package to uninstall. It is categorised as a Destructive tool in the Salesforce MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on package_uninstall? +

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

What risk level is package_uninstall? +

package_uninstall is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit package_uninstall? +

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

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

package_uninstall is provided by the Salesforce MCP Server MCP server (advancedcommunities/salesforce-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 Salesforce MCP Server tool call.

Start from Salesforce 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 →