media-forgeseedance-promptinglisted

# Seedance 2.0 Prompt Engineering ## When to load this skill Load this skill before invoking any `media_seedance_*` MCP tool or before dispatching to the `seedance-director` subagent. The default video-router uses this skill's tier-selection guidance to decide which Seedance endpoint to use. ## Tier selection Seedance 2.0 ships exactly **two tiers** via fal.ai: **Fast** and **Standard**. > **There is no Pro tier in Seedance 2.0.** Any prompt or tool call referencing a Pro tier will fail at the provider level. Do not request it. | Tier | Resolution cap | Best for | Rate (fal.ai) | |---|---|---|---| | Fast | 720p max (480p also available) | Drafts, A/B variants, iteration cycles, batch volume | ~$0.2419/s | | Standard | 1080p (480p/720p also available) | Production deliverables, hero shots, final renders | ~$0.3024/s | **Decision rule:** 1. Start every new concept with **Fast** — iterate until prompt + reference set are locked. 2. Promote to **Standard** only when ready for a production output or when the scene requires 1080p resolution. 3. Native audio is included at both tiers — no surcharge, no separate call. Cost example: a 10-second 720p clip costs ~$2.42 (Fast) or ~$3.03 (Standard). Always run `media_video_cost_estimate` before generating to surface actual cost before spending. **Billing note:** fal.ai charges per-second of output. For 1080p clips at long durations (Standard tier, ≥10s), a token formula may apply: `(height × width × duration × 24) / 1024 × $0.01