MCP Tool Reference Medium Risk

update_plan

Update an existing subscription plan

Part of the PayPal MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

WHEN AI AGENTS USE THIS TOOL

AI agents use update_plan to create or modify resources in PayPal. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

WHY ENFORCE A POLICY ON UPDATE_PLAN

Without a policy, an AI agent could call update_plan repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach PayPal.

RECOMMENDED POLICY

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

paypal.yaml
tools:
  update_plan:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full PayPal policy for all 30 tools.

DETAILS

Tool Name

update_plan

Category

Write

MCP Server

PayPal MCP Server

Risk Level

Medium

MORE PAYPAL TOOLS

View all 30 tools →

SIMILAR WRITE TOOLS ON OTHER SERVERS

RELATED READING

FREQUENTLY ASKED QUESTIONS

What does the update_plan tool do?

Update an existing subscription plan. It is categorised as a Write tool in the PayPal MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_plan?

Add a rule in your Intercept YAML policy under the tools section for update_plan. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the PayPal MCP server.

What risk level is update_plan?

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

Can I rate-limit update_plan?

Yes. Add a rate_limit block to the update_plan rule in your Intercept 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 update_plan completely?

Set action: deny in the Intercept policy for update_plan. 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 update_plan?

update_plan is provided by the PayPal MCP server (paypal/paypal-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

ENFORCE POLICIES ON PAYPAL

Open source. One binary. Zero dependencies.