video-recap-skills

Assemble a final recap video: mux narration audio over the source video, duck the original audio under the narration, render subtitles (SRT/ASS, optionally burned in), and loudness- normalize. Use as the last stage of the video-recap bundle. Consumes the source video + tts_meta.json (+ narration placement); produces recap_<name>.mp4 + subtitles.srt/.ass. 触发词: 视频合成, 混音, 字幕, 压字幕, assemble video, mux, ducking, subtitles, 成片.

Cut a long video down to selected source ranges (montage / clip assembly). Part of the video-recap bundle: in the orchestrated (two-pass) flow, consumes clip_plan.json + the source video, produces edited_source.mp4; the agent then writes narration.json against the output timeline. When invoked standalone WITHOUT --no-narration-map, also remaps an existing narration.json → narration_mapped.json (legacy single-pass path). 触发词: 视频剪辑, 剪辑式解说, video cut, clip plan, 拼剪.

Generate a Chinese-narration recap video from an input video, end to end. Use when the user gives a video file (.mp4 / .mov / .mkv / .webm) and asks to add narration, generate voiceover, dub, summarize, or produce a recap (短剧 / 电视剧 / 电影 / 纪录片 / 科普). Orchestrates the video-* skill bundle: understanding → (agent writes narration) → cut → voiceover → assemble. 触发词: 视频解说, 视频旁白, 生成解说, 视频recap, video recap, voiceover, narration, auto-dub, recap.

Write a timestamped Chinese narration script (解说词 / 旁白) for an already-analyzed video, then lint/validate it. Use after video-understanding has produced agent_narration_brief.md + vlm_analysis.json, when you need to author the recap narration (style, anti-hallucination, 字数公式, density, hook/throughline). Input: the understanding index in work_dir. Output: narration.json (validated). 触发词: 解说词, 写解说, 视频旁白, narration script, 写稿, 解说文案.

Analyze a video into a structured understanding index: scene detection, ASR transcript, per-scene visual (VLM) analysis, silence windows, a fused timeline, and a narration-writing brief. Use to understand / index / summarize what happens in a video, or as the first stage of the video-recap bundle before writing narration. Input: a video file. Output: scenes.json, asr_result.json, vlm_analysis.json, silence_periods.json, timeline_fusion.json, agent_narration_brief.md. 触发词: 视频理解, 视频分析, 视频索引, video understanding, analyze video, 看懂视频.

Synthesize Chinese narration audio (TTS voiceover) from a timestamped narration.json. Use to turn a written narration script into per-segment speech audio, with MiMo TTS (mimo-v2.5-tts), dynamic speed fitting, and loudness handling. Part of the video-recap bundle: consumes narration.json (output-timeline time), produces tts_segments + tts_meta.json. In the legacy direct-cut path, narration_mapped.json may be passed explicitly instead. 触发词: 配音, 语音合成, TTS, 解说配音, voiceover, text to speech, 旁白配音.