File a product bug, idea, or general feedback on the public posterly feedback board (same board users see in the dashboard). Only call this when the human explicitly asks to report a bug, suggest a feature, or send feedback to posterly. Require confirm=true after they approve the title and category. Never use this for tool failures or retries - use submit_agent_feedback for private operational telemetry. Never include API keys, secrets, captions, media URLs, or personal data about third parties. Requires an authenticated bearer API key and paid API add-on.