---
title: "Create Debug Decomposition Session"
method: POST
path: "/api/agent/decomposition-debug/sessions"
---

# Create Debug Decomposition Session

`POST /api/agent/decomposition-debug/sessions`

## Request body

- CreateDebugSessionRequest
  - `project_id` string, required
  - `video_url` string, required
  - `overlay_hints` string[]
  - `need_editable_captions` boolean

## Response `201`

Successful Response

- object

## Other responses

- `422` — Validation Error

## Changes

- **2026-09-03** `54e858aff21b` — 1 info
  - added the new optional request property `need_editable_captions`

[Change history](https://skmtc.dev/latted/apis/motion-graphics-designer-api/changes/api/agent/decomposition-debug/sessions/post.md)

---

[API](https://skmtc.dev/latted/apis/motion-graphics-designer-api.md) · [All operations](https://skmtc.dev/latted/apis/motion-graphics-designer-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/latted/motion-graphics-designer-api/revisions/54e858aff21b/schema)