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like-subscribe-overlay

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更新时间2026年6月29日 23:29

Overlay the branded like/subscribe CTA animation — channel gem avatar + @C0BALT_CUT handle + subscribe/like/bell click choreography — for ~4 seconds WITHIN THE FIRST THIRD of a finished short (start clamped to end by the 1/3 mark, floored after the ~2.5s title card; early placement so viewers who bail never miss it). The animation source is cta.html (HTML+CSS+JS driving the pill pop-in, cursor moves, click punches, bell ring, thumb fill); build-cta.sh renders it frame-by-frame via headless Chromium (Playwright, omitBackground) and ffmpeg-encodes to assets/cta.mov (ProRes 4444 with alpha).

安装

用 Codex 或 Claude 帮你安装复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。

在 Manus 中运行

来源

jperrello

jperrello/C0BALT_CUT

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在 Manus 中运行

like-subscribe-overlay

Drops a hook-grabbing branded call to action into the short. A JS-driven animation plays in the lower third for dur seconds starting at pos fraction of the clip (default 0.15), with the start clamped so the whole CTA lands inside the first third of the clip — where retention is highest — while staying clear of the ~2.5s title card: a Carbon Black pill pops in carrying the channel gem avatar (sapphire-ringed, glow breathing) and the @C0BALT_CUT handle (Impact, Platinum, sapphire slashed zero) → cursor enters → clicks SUBSCRIBE (red → dark, scale punch, expanding ring) → bell rings → cursor glides left to the thumbs-up → clicks LIKE (thumb fills Sapphire Glow, scale punch, expanding ring) → holds the final state.

The animation is authored in plain HTML+CSS+JS (cta.html) and pre-rendered once into a transparent ProRes 4444 .mov asset (assets/cta.mov). Runtime just composites that asset. The avatar image is assets/channel.png (square crop of the channel gem); replace it and re-run build-cta.sh to rebrand.

Invoke

.claude/skills/like-subscribe-overlay/like-subscribe-overlay.sh <input> <out> [dur=4.0] [pos=0.15]

input: finished short (any aspect ratio; designed for 1080x1920)
out: output mp4
dur: total CTA duration in seconds (clamped to clip length, default 4.0)
pos: fraction of the clip at which the CTA starts (default 0.15; clamped so the CTA ends inside the first third, starts after the ~2.5s title card, and never spills past the end of the clip — in that priority order)

Output

mp4, same dimensions and duration as the input, video re-encoded (libx264 veryfast crf18), audio re-encoded to AAC 192k. Prints the output path to stdout. Idempotent: a <out>.lsmeta sidecar records the signature (dur|pos|asset-version); a cache hit requires out newer than input and a matching signature.

Brand

Colors from brand/BRAND.md: pill in Carbon Black #101418 with a Sapphire Glow #2E6BFF edge, handle in Platinum #E8ECF1 Impact with the slashed zero in Sapphire Glow (same visual language as the watermark renderer), liked thumb fills Sapphire Glow. The SUBSCRIBE button stays YouTube red pre-click for instant recognition.

Where in the pipeline

Runs after loudnorm and before bg-music / save-local. The overlay lands inside the first third of the clip (after the title card), so it composites over whatever is on screen early in the story (captions burn beneath it for those 4 seconds — intended).

How

build-cta.sh (one-time, or whenever cta.html / assets/channel.png changes): build-cta.js steps cta.html's deterministic window.setT(t) frame-by-frame in headless Chromium (Playwright, omitBackground) and ffmpeg-encodes the transparent PNGs to assets/cta.mov (ProRes 4444).
like-subscribe-overlay.sh time-stretches the asset to dur (setpts), pins it to the lower third, and enables it for [start, start+dur] where start = min(pos * clip_duration, clip_duration/3 - dur) floored at 3.0s (title-card clearance). The CTA overlays SILENTLY — the clip's source audio passes straight through (-map 0:a, no mix). The old bell-ding SFX (make_sfx.py) is retired; make_sfx.py is unused.

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Generate a per-clip third-person engagement-driven title card text. Claude reads the clip's transcript, the source ingest.json metadata, and (optionally) pick-segments' per-span judgment (topic, rationale, suggested title) so it reads the speaker's register — sincere vs ironic vs joking — before titling. Emits a hook-driven ALL-CAPS title (<=7 words).

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Per-clip upload-readiness grade (0-99) read off a FINISHED .mp4 plus its persisted sidecar plans — the first skill that inspects a delivered pixel-level artifact, the on-disk proxy for YouTube's VVSA swipe gate. Deterministic retention-proxy floor (frame1_is_face, letterbox_bars, credit_lit_at_open, first_visual_change, first_payoff_offset, longest_static_gap, opening_caption_words, max_residual_silence, terminal_loop_score) with hard caps (letterbox / face_withheld / credit_at_open / blocking_card / dead_tail) that cap grade≤40, plus ONE batched Claude rubric call (hook↔payoff / open-loop / cold-context) skipped when GRADE_SKIP_CLAUDE=1. Runs at the END of the per-span chain (after save-local) AND standalone over the whole output/ backlog (--backlog → output/_triage.json). Emits clip_NN.grade.json per the locked SELECTION-SUITE-CONTRACT schema. Idempotent (.gcmeta), non-fatal (any error → DROSS/empty, exit 0).

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Claude picks CONTEXTUAL/scene-level anchors from a clip transcript (literal objects, establishing shots, evocative concept footage matched to the story's tone — not just keyword nouns) and sources full-bleed B-roll cutaways via keyless yt-dlp YouTube search + mcptube frame-sampling + Claude vision verify. The verify step gets the spoken context and rejects literal-but-wrong matches (e.g. a cat laser toy for a tense "red dot" beat). Aims dense (8-12 windows, targeting cutaway footage on ~60%+ of the runtime; emits cutaway_coverage in the plan and WARNs below BROLL_MIN_COVER, default 0.6). Emits broll_plan.json with per-cutaway placement [t0,t1] and source metadata; clip files are namespaced per-clip. Windows snap to whole chunk-captions boundaries; vision calls capped by BROLL_VISION_CAP (default 16).

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Deterministic source-video discovery — the clip-channel "outlier" method, keyless. Searches seed niche queries via yt-dlp ytsearch, prefilters to long-form candidates, fetches full metadata, and ranks by outlier score (views/day velocity, views-per-subscriber ratio, comment engagement, replay-heatmap peakiness). Emits a ranked candidates.json to pick the next pipeline source from. No Claude call, no API key.

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name	like-subscribe-overlay
description	Overlay the branded like/subscribe CTA animation — channel gem avatar + @C0BALT_CUT handle + subscribe/like/bell click choreography — for ~4 seconds WITHIN THE FIRST THIRD of a finished short (start clamped to end by the 1/3 mark, floored after the ~2.5s title card; early placement so viewers who bail never miss it). The animation source is cta.html (HTML+CSS+JS driving the pill pop-in, cursor moves, click punches, bell ring, thumb fill); build-cta.sh renders it frame-by-frame via headless Chromium (Playwright, omitBackground) and ffmpeg-encodes to assets/cta.mov (ProRes 4444 with alpha).
allowed-tools	Bash
user-invocable	true

like-subscribe-overlay

Invoke

.claude/skills/like-subscribe-overlay/like-subscribe-overlay.sh <input> <out> [dur=4.0] [pos=0.15]

input: finished short (any aspect ratio; designed for 1080x1920)
out: output mp4
dur: total CTA duration in seconds (clamped to clip length, default 4.0)
pos: fraction of the clip at which the CTA starts (default 0.15; clamped so the CTA ends inside the first third, starts after the ~2.5s title card, and never spills past the end of the clip — in that priority order)

Output

Brand

Where in the pipeline

How

build-cta.sh (one-time, or whenever cta.html / assets/channel.png changes): build-cta.js steps cta.html's deterministic window.setT(t) frame-by-frame in headless Chromium (Playwright, omitBackground) and ffmpeg-encodes the transparent PNGs to assets/cta.mov (ProRes 4444).
like-subscribe-overlay.sh time-stretches the asset to dur (setpts), pins it to the lower third, and enables it for [start, start+dur] where start = min(pos * clip_duration, clip_duration/3 - dur) floored at 3.0s (title-card clearance). The CTA overlays SILENTLY — the clip's source audio passes straight through (-map 0:a, no mix). The old bell-ding SFX (make_sfx.py) is retired; make_sfx.py is unused.