---
search:
  tags:
    - Operations
    - PUT
seo:
  description: >-
    Owner-only. When non-null, the authored text leads the prompt body for the…
    Reference for the PUT /app/{id}/starter-prompt endpoint in the Charming API
    API.
sidebar:
  badge: PUT
  label: Set or clear the authored chat-with-app starter prompt
title: Set or clear the authored chat-with-app starter prompt
type: openapi-operation
---
Owner-only. When non-null, the authored text leads the prompt body for the "Open in Claude / Open in ChatGPT / Copy prompt" control-panel actions, and the app's name, description, URL (and, for unclaimed apps, an access token) are appended automatically at render time. Write a generic getting-started instruction — do NOT embed the app's URL, or every copy's deeplink would point at the template instead of their own copy. Pass `null` (or an empty string) to clear and revert to the generic default. Idempotent: a repeated call with the same value is a no-op.

<Operation source="reference" id="set-app-starter-prompt" />

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