Agent skill · writing content · jeremylongshore
klingai-known-pitfalls
Avoid common mistakes when using Kling AI API. Use when troubleshooting
Why this skill is useful
Provides specific troubleshooting patterns and best practices for using the Kling AI API that the AI wouldn't reliably generate on its own.
What it needs
Requires kling-ai account access. About 4k tokens when loaded. Last updated 2026-08-07. 2,604 stars on the source repository.
What this skill does
Kling AI Known Pitfalls Overview Documented mistakes, gotchas, and anti-patterns from real Kling AI integrations. Each pitfall includes the symptom, root cause, and tested fix. Pitfall 1: Duration as Integer Symptom: 400 Bad Request on valid-looking requests. The API requires duration as a string "5" or "10", not an integer. Pitfall 2: JWT Without Explicit Headers Symptom: 401 Unauthorized even with correct AK/SK. Some JWT libraries don't include typ: "JWT" by default. Kling requires it. Pitfall 3: Token Generated Once at Import Time Symptom: Works for 30 minutes, then all requests fail with 401. JWT tokens expire after 30 minutes. Always implement auto-refresh. Pitfall 4: Polling Without Timeout Symptom: Script hangs forever on a failed task. Pitfall 5: Not Downloading Videos Promptly Symptom: Video URLs return 404 or 403 after a day. Kling CDN URLs are temporary (24-72 hours). Always download and store on your own infrastructure immediately after generation completes. Pitfall 6: Mixing Mutually Exclusive Features (I2V) Symptom: 400 Bad Request on image-to-video with multiple features. These are mutually exclusive for image-to-video: cameracontrol dynamicmasks / staticmask imagetail You can only use ONE group per request. Pitfall 7: Wrong Model for Text-to-Video Symptom: 400 or unexpected behavior. Check the model catalog: kling-v1-5 and kling-v2-1 support image-to-video only. Pitfall 8: No Error Handling on Task Status Symptom: Silent failures, missing videos. Pitfall 9: Ignoring Credit Costs with Audio Symptom: Credits depleted 5x faster than expected. Native audio (v2.6, motionhasaudio: true) multiplies credit cost by 5x: 5s standard without audio: 10 credits 5s standard WITH audio: 50 credits Always check motionhasaudio in cost estimates. Pitfall 10: Vague Prompts Symptom: Low-quality, incoherent video output. Good prompts: specific subject, clear action, lighting, camera angle, style. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills jeremylongshore/klingai-known-pitfalls--03a548