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make-viral-video · sonichi | DecimalAI

design mediaby sonichi

make-viral-video

sonichi/make-viral-video

Source sonichi/sutando ↗License MIT

Build a short news-explainer video tuned for shareability. One striking moment per video; real fetched assets; self-heal validation; pluggable TTS (Gemini-free default, OpenAI fallback).

SkillScore71Maintained

Automatic

Marketing & Content pack

Last verified 8/23/2026

What it changes

Passed 15 of 21 test cases with the skill, and 7 of 21 without it.

Without skill33%

With skill71%

Checks it passed that the model alone missed

Uses the sage voice on OpenAI fallback.
Requires caption font size of at least 36pt.
Sets hook card text font size to at least 120pt.

and 11 more in the full report

11 fixed6 passed either way5 still failing2 broke

Pass-rate lift: +38 pp
Tokens: +63%
Agent turns: 0%
Response time: -67%

Model gemini-3.6-flashMeasured 8/23/2026v117 of 24 cases passed with skill · 21 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/sonichi-make-viral-video/SKILL.md https://app.decimal.ai/s/sonichi-make-viral-video/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add sonichi-make-viral-video, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/sonichi-make-viral-video/ and pins it in .decimal/skills.lock

decimalai skills add sonichi-make-viral-video

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/sonichi-make-viral-video/SKILL.md https://app.decimal.ai/s/sonichi-make-viral-video/SKILL.md

Raw file: /s/sonichi-make-viral-video/SKILL.md ↗ · machine-readable summary at /s/sonichi-make-viral-video.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 11 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 11

Prompt

In an asset manifest JSON file, what exact set of strings are valid values for the purpose field of an asset entry?

What was checked, without and with the skill
Checked	Without skill	With skill
Restricts purpose field values to hook, support, or closer.	Missed	Passed

case-23 · gemini-3.6-flash · 8/23/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md163 lines8 filesincludes scripts

make-viral-video

Build a short (~30-60s, 1280×720 landscape, h264+aac) news-explainer video around a single source URL or news event. Designed for shareability via the specificity-shape framing (Chi's pick 2026-05-09): one striking number, image, or quote — not a comprehensive overview.

Distinct from Lucy's recursive-meta-explorer v8-v12 lineage (which optimized for completeness). This skill optimizes for the one moment that makes someone share.

Usage

bash "$SKILL_DIR/scripts/build.sh" --topic "DoW UAP file release" --source "https://war.gov/UFO" --out results/

Produces:

results/viral-{ts}/video.mp4 — the rendered video
results/viral-{ts}/script.md — the narration script
results/viral-{ts}/assets/ — fetched images with hash + validation log
results/viral-{ts}/build.log — full build trace (codex iterations + validation results)
results/viral-{ts}/verify.sh — script to independently re-validate the build

Required tools

python3 ≥ 3.10 (PIL for frame composition)
ffmpeg (encode + ffprobe gate)
gemini API key (free tier, default) OR openai API key (fallback)
Codex CLI (for script generation per pass)

Architecture

Three-phase build with self-heal

Phase 1 — Source ingestion + script generation

Fetch the source URL (curl + Playwright fallback for JS-rendered pages)
Codex generates a narration script + asset manifest with the specificity-shape framing:
- One striking opening fact (the hook)
- 3-5 supporting details (context)
- One closing twist or open question (the share moment)
Asset manifest is JSON: [{"url": "...", "alt": "...", "purpose": "hook|support|closer"}]

Phase 2 — Asset validation (the self-heal loop)

Track record

Benchmark

15 / 21

test cases passed, vs 7 / 21 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

sonichi / sutando

skills/make-viral-video/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1Bundled 7 files · scripts

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

make-viral-video

Usage

Required tools

Architecture

Three-phase build with self-heal

Track record

Benchmark

Adoption

SkillSafety

Source

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