reauthorize-subscription
Reauthorize a subscription when you receive a reauthorizationRequired challenge. 💡 TIP: Reauthorizes a subscription after receiving a 'reauthorizationRequired' lifecycle notification from Microsoft Graph. No body required. Must be called within the reauthorizationRequiredDateTime window (typical...
This record as markdown: /tools/jo3zik-ms-365-mcp-server/reauthorize-subscription.md
What reauthorize-subscription does on Ms 365
AI agents use reauthorize-subscription to create or update resources in Ms 365, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ms 365 environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
confirm | boolean | — | For destructive operations when the confirm gate is enabled (MS365_MCP_REQUIRE_CONFIRM=true; off by default). Set to true only after the user has explicitly app |
includeHeaders | boolean | — | Include response headers (including ETag) in the response metadata |
subscriptionId | string | Yes | Value for the 'subscriptionId' path segment. Pass it under the name 'subscriptionId', not as 'id'. Use the 'id' field of the subscription object as returned by |
excludeResponse | boolean | — | Exclude the full response body and only return success or failure indication |
Parameters from the server's own tool schema.
Why reauthorize-subscription is rated Medium
An AI agent can call reauthorize-subscription faster than any human can review: one bad instruction and it creates or modifies resources in Ms 365 by the hundred, each call as confident as the last.
Attacks that exploit this kind of access
The rule that runs reauthorize-subscription safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Ms 365, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For reauthorize-subscription, this is the rule to start with:
reauthorize-subscription 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Ms 365, apply this rule, and every reauthorize-subscription call is checked against it from then on.
Questions about reauthorize-subscription
Reauthorize a subscription when you receive a reauthorizationRequired challenge. 💡 TIP: Reauthorizes a subscription after receiving a 'reauthorizationRequired' lifecycle notification from Microsoft Graph. No body required. Must be called within the reauthorizationRequiredDateTime window (typically 48h) to avoid subscription expiry. It is categorised as a Write tool in the Ms 365 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
reauthorize-subscription accepts 4 parameters: confirm, includeHeaders, subscriptionId, excludeResponse. Required: subscriptionId. The full parameter table on this page comes from the server's own tool schema.
Register the Ms 365 MCP server in PolicyLayer and add a rule for reauthorize-subscription: 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 Ms 365. Nothing to install.
reauthorize-subscription is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the reauthorize-subscription 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.
Set action: deny in the PolicyLayer policy for reauthorize-subscription. 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.
reauthorize-subscription is provided by the Ms 365 MCP server (@jo3zik/ms-365-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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