Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add Pika-Labs/Pika-Plugins/plugin install pikaWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/pika-labs/pika-plugins/viral-hook)<a href="https://agentmods.dev/skills/pika-labs/pika-plugins/viral-hook"><img src="https://agentmods.dev/badge/skills/pika-labs/pika-plugins/viral-hook/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/pika-labs/pika-plugins/viral-hook"><img src="https://agentmods.dev/badge/skills/pika-labs/pika-plugins/viral-hook.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00118 | $0.02158 |
| Opus 5 | $0.00059 | $0.01079 |
| Sonnet 5 | $0.00024 | $0.00432 |
| Haiku 4.5 | $0.00012 | $0.00216 |
Grade A, and why
viral-hook scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 167 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Viral Hook
Prepends an extreme, no-dialogue ~4s hook to a user's video — an attention-grabbing event that erupts into the user's own scene, with an optional designed title burned into the lower third — then hard-cuts into the untouched clip.
generate_viral_hook does the whole render in one call and returns BOTH
the hook and the stitched final. This skill's job is the creative judgment the tool can't
make: read the scene, pick a hook action from the menu, and write a title.
Hook rules (govern what you WRITE as hook_action)
- Certain to grab attention, fast. Extreme and unmissable inside ~2s — over plausibility or relevance to the video's topic.
- Erupts into the user's OWN scene. Same person, location, lighting — the tool anchors on the best visual anchor frame: 0s when usable, otherwise the first detectable face frame. Describe the event entering THAT space, never a different setting.
- Use the scene's real geometry. Enter through a doorway with depth, a wall behind the subject, headroom above.
- No dialogue. Voice-free (only ambient / impact SFX) — don't write spoken lines into
hook_action.
Hook super-category menu
Four super-categories. Rotate super-category per run on the same clip/session — without rotation, regenerates collapse to vehicle / explosion / creature. Archetypes are starting points, not a closed list; invent freely within the category.
A. Destructive intrusion — external force violently enters and damages the scene
| Archetype | What happens | Scene affordance |
|---|---|---|
| Incoming vehicle | car / truck / bus smashes through a wall or doorway and barrels at camera | background depth or a back wall |
| Flash flood / wave | a wall bursts and water surges down toward camera | corridor / back wall |
| Structural collapse | ceiling / wall / shelf caves in, debris rains down | headroom / walls |
| Explosion / blast | fireball erupts behind them, shockwave + debris rush forward | a background surface |
| Creature attack | animal / monster lunges from off-frame or bursts in | open off-frame edge |
| Absurd intruder | dinosaur, elephant, UFO, giant hand enters behind them | background space |
| Natural disaster | tornado / meteor / lightning / sinkhole | exterior or large space |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 167 lines · 118 tokens per session scan A 3382b68e7830
viral-hook is a skill published in the GitHub repository Pika-Labs/Pika-Plugins (40 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 118 tokens to every session and 2,158 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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