Open support cases once, with entitlement and fixes in hand

**Objective:** Open a case for `{customer-name}` about `{issue-summary}` with priority `{priority}` (default normal), unless an open case already covers it.

**Step 1: Confirm the customer**

Call `dynamics-365-sales-get-accounts` with `account-name` = `{customer-name}`; if nothing matches, call `dynamics-365-sales-get-contacts` with `full-name` = it. If neither matches, or more than one does, stop and ask. Remind the user that `{customer-id}` must be the GUID of this same record, since it cannot be checked against the name.

**Step 2: Existing cases**

Call `dynamics-365-sales-get-incidents` with `customer` = the customer name and the open status. If an open case looks like the same issue (similar title or subject), show it and ask whether to add to it instead; stop unless the user says to create a new one.

**Step 3: Entitlement and known fixes**

* Call `dynamics-365-sales-get-entitlements` with `customer` = the customer name. Note whether there is an active entitlement with remaining terms.
* Call `dynamics-365-sales-get-knowledgearticles` with `title.contains` = one or two distinctive words from the issue and `is-latest-version` = true, and list up to 2 relevant articles.

**Step 4: Confirm**

Show the case to be created: title (a short summary of the issue), description (the full issue), priority, case type and origin if they are clear from the issue, the entitlement position and suggested articles. Ask for one confirmation.

**Step 5: Create**

Call `dynamics-365-sales-create-case` with `title`, `description`, `customer-id` = `{customer-id}`, `priority`, and `case-type` and `origin` if known. Then, if the user wants the suggested articles recorded, call `dynamics-365-sales-create-note` with `regarding-id` = the new case `id` listing them.

**Step 6: Report**

The new case id, its title and priority, and the entitlement position.

**Rules & Guidelines:**

* No read tool returns a record's GUID. A GUID for an existing record must come from the user: it is the `id=` value in the browser address bar when the record is open in Dynamics 365. Never invent, reuse or guess one.
* Status, stage, priority, rating and type filters take the values listed in each tool's input schema. Pick from that list; never guess a label.
* The only write tools this prompt may call are `dynamics-365-sales-create-case` and `dynamics-365-sales-create-note`, each once, after the confirmation.

**Validation:**

* If `{customer-id}` is not a GUID (32 hex digits in 8-4-4-4-12 form), stop and explain where to find it.