Seedance 2.5延展链计划

Use this skill to plan a bounded multi-round Seedance 2.5 extension chain before an authorized operator submits any media task.

Prerequisites

• - Python 3.9 or newer.
• A redacted chain JSON with segment intents and continuity locks.
• Separate confirmation of account access, source-media rights, and current provider limits.

Inputs and outputs

• - Input: chain JSON with model, base_duration_seconds, rounds, and continuity_locks.
• Output: extension_chain_plan.json and a terminal report.
• Exit code 0 means ready for human submission review; exit code 1 means blocked.

Execution

CODEBLOCK0

The planner checks the documented per-generation duration envelope, at most two planned extension rounds, direction, unique segment IDs, and explicit subject/style/audio/frame carry-over locks. It does not calculate or promise a total final duration.

Recovery

Fix the reported segment or lock, rerun, and recheck current provider documentation. Do not silently add rounds or re-submit a failed task.

Permission boundary

This is an offline plan checker. It does not read credentials, upload or download media, call a model, spend credits, inspect pixels or audio, or publish a result. A human must confirm the real platform, cost, rights, and safety policy.

Acceptance

The pass example exits 0 and sets release_ready=false; the blocked example exits nonzero and identifies invalid round or continuity fields.