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short-sound-design

Design and verify audio finishing for Japanese or English short-form social video. Use for 短尺SNS, BGM/効果音, テンポ調整, 意味ベース配置, dialogue-first mixing, or existing rough cut audio finishing with pinned local assets and internal-review QA.

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

설치 방법 보기

포함된 파일(3)

  • SKILL.md6.5 KB
  • agents/openai.yaml331 B
  • references/workflow.md2.5 KB

SKILL.md(원문)

설치하기 전에 에이전트에게 전달되는 지시 내용을 확인할 수 있습니다.

Short Sound Design

意味と会話の可読性を先に決め、信頼できるbeat evidenceがある場合だけ小さくtempoへ寄せる。 判断、formal cue、共有音声render、QAを別artifactとして残す。

canonical timeline.json は picture、dialogue、caption timing の正本とし、caption text/timing/approval は caption runtime と FFmpeg/libass speech route に残す。Remotion/HyperFrames は登録済み content element のみ、 visual treatment patch は別 receipt、AudioRenderPlan/Executor は single mastering とする。rights が未確定の SFX は fail closed のままにし、agent QA、human audition/approval、platform preview、publication を混同しない。

Practical SFX use

  • Start from semantic intent, not an available sound: use a hook accent for the opening promise, an emphasis accent for a meaningful claim or reveal, and a transition accent only when a real visual or editorial change needs support.

  • Keep effects sparse. Leave useful silence, reject effects that merely fill a gap, and inspect repetition across the whole cut for fatigue or an accidental pattern.

  • Treat dialogue, captions, overlays, lower-thirds, and picture edits as conflicts. Dialogue remains readable; resolve conflict with timing within the evidence window, gain, ducking, or rejection. Never move picture or speech to make room.

  • Pin the cue to a semantic window and preserve its source range. Record gain, fade-in, fade-out, dialogue ducking, and tail policy in the cue artifact. Tails may be trimmed to the timeline boundary but may not extend the picture.

  • A rights or provenance record is a gate, not a suggestion. Missing, unknown, expired, ambiguous, stale, or unreviewed evidence remains HOLD and cannot be selected, rendered, or package-passed. Validate a manifest without media when needed:

    npm run sfx:promote -- --asset-id <asset-id> --scope <repo_common|project_local> --manifest <sfx-library.json> --repo-sfx-root <repo-sfx-root> --validate-only --json
    
  • Keep these artifacts in the canonical chain: library manifest, promotion result, sound-design request and decision, pinned cue plan, projected timeline, shared audio render plan, mix report, and QA result. A HOLD result is evidence of the missing gate; do not fabricate a cleared entry.

  • Machine checks establish identity, hashes, timing, and mix policy. A human must still audition timbre, placement feel, repetition, dialogue masking, gain/ducking, tails, and the final social and delivery renders.

The reusable contracts are command-specific: sound-design:plan accepts only planning flags; sfx:promote owns promotion flags such as --asset-id, --scope, --source, --manifest, --repo-sfx-root, --verified-at, and --permitted-derivatives. Check each command's own --help; do not pass promotion flags to the plan entrypoint. The machine artifacts are sfx-library/v1 and sfx-promotion-result/v1; promotion requires a complete ffprobe/decode measurement and otherwise returns HOLD without creating output.

必ず読む参照

判断前にreferences/workflow.mdを読む。

Workflow

  1. project、timeline、creative brief、blueprint、source mapのidentityとhashを確認する。 canonical artifactは読み取り専用にし、作業用copyを使う。

  2. SFX libraryとBGM Packのrights、provenance、manifest、asset hash、sizeを確認する。 未pin、unknown、missing、hash driftは止める。

  3. picture edit、発言、視覚イベントからsemantic candidateを作る。各候補へpurpose、 evidence、semantic window、asset pinを付ける。

  4. dialogue、caption、overlay、lower-third、section、music entryをcongestion evidenceにする。 固定間隔の候補生成やpicture timing変更はしない。

  5. solverをdry-runし、人が読めるadopt/reject、score、conflict、snap理由を確認する。

    npm run sound-design:plan -- --project <project> --timeline <timeline.json> --request <sound-design-request.json> --decision-output <new-decision.json> --cues-output <new-sfx-cues.json> --repo-sfx-root <repo-sfx-root> --dry-run
    
  6. decisionを承認候補として確認してから、同じcommandを--dry-runなしで実行する。 solver decisionからformal sfx-cues/v1だけを生成し、手で別判断へ差し替えない。

  7. cueをA3へ投影する。

    npm run sfx:project -- --project <project> --timeline <timeline.json> --cues <sfx-cues.json> --repo-sfx-root <repo-sfx-root> --output <new-timeline.json>
    
  8. Phase 3/4の共有AudioRenderPlan/Executorを使い、social/final audioを同じplanで検証する。 solver内にFFmpeg、mixer、filtergraphを再実装しない。

    npm run render-audio-plan -- --project <project> --timeline <timeline.json> --music-cues <music-cues.json> --sfx-cues <sfx-cues.json> --repo-sfx-root <repo-sfx-root> --route social-review --output <new-social-dir>
    npm run render-audio-plan -- --project <project> --timeline <timeline.json> --music-cues <music-cues.json> --sfx-cues <sfx-cues.json> --repo-sfx-root <repo-sfx-root> --route final --output <new-final-dir>
    
  9. 必要なら既存picture、caption、overlayを変えずinternal reviewを作る。

    npm run social-review -- --project <project> --timeline <timeline.json> --captions <caption-plan.json> --music-cues <music-cues.json> --sfx-cues <sfx-cues.json> --repo-sfx-root <repo-sfx-root> --output <internal-review.mp4> --work-dir <new-work-dir>
    
  10. full decode、rational FPS、尺、A/V、plan/report/final-mix parity、LUFS/true peak、 decision/cue/library pin、canonical hash不変を機械検証する。

  11. 音色・配置・BGM最終選定をhuman audition gate、外部公開をpublication gateとして残す。

禁止

  • semantic evidenceなしのhit、固定間隔SFX、BPMだけからの無根拠beat生成
  • dialogueを邪魔するhit、未pin素材、低信頼beatへのsnap
  • picture timingや発言境界の移動、mixed audioのdialogue finishing再投入
  • masteringの重複、内部試写をfinal/public approvalとして扱うこと
  • 明示承認なしの公開、upload、外部素材取得

리뷰

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같은 저장소의 스킬

MUST USE when source footage or a material folder is provided and material understanding or 03_analysis generation is needed. Trigger not only on explicit analysis requests ('分析して', '素材を見て') but also when the user points at footage and says things like 'この動画で', 'この素材で', or any request that requires understanding the provided media before planning or editing.

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

mocchalera/video-os-v252026년 9월 4일 업데이트

Use when selects_candidates.yaml exists and the user asks to design structure, build an edit blueprint, or create 04_plan/edit_blueprint.yaml.

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

mocchalera/video-os-v252026년 9월 4일 업데이트

Use when edit_blueprint.yaml and selects_candidates.yaml are ready and the user asks to compile the rough cut, generate timeline.json, or apply a review patch.

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

mocchalera/video-os-v252026년 9월 4일 업데이트

MUST USE when the user asks to crop, reframe, trim, or improve composition of still photos, especially selected event photos, album photos, portraits, speakers, panels, workshops, or group photos. Use after photo selection or correction when the task is composition improvement rather than selecting images.

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

mocchalera/video-os-v252026년 9월 4일 업데이트

MUST USE when starting a new video project, when the user provides footage and asks to edit/create a video, or when 01_intent/creative_brief.yaml does not yet exist. This skill interviews the user to understand their intent before any editing begins. Never skip this step.

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

mocchalera/video-os-v252026년 9월 4일 업데이트

Use after changing prompts, skills, the compiler, or editorial policies — or when the user asks to measure edit quality, run regression evals, check agreement with approved edits, or says '評価して', '一致率を測って', 'eval を回して'. Compares agent output against human-approved golden projects.

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

mocchalera/video-os-v252026년 9월 4일 업데이트

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