4k-vfx

4k-vfx is a skill for Claude Code from Pika-Labs/Pika-Plugins. It costs 105 tokens per session (3,880 once invoked), scanned A, original, Apache-2.0.

A workflow for turning a video clip into a cinematic 4K visual-effects shot while keeping the original subject, movement, camera work, and audio in the result. It uses AI video generation guided by a detailed reading of every video frame and the audio.

In plain words
What is it for?
Use it to apply one requested visual effect to one video clip, including changes timed to dialogue, music, sound effects, or ambience, and produce one 4K clip.
Why use it?
AI video generation can change faces, gestures, timing, or scene details when applying an effect. This workflow describes the original shot carefully so the requested change is placed at the right moment while the rest stays consistent.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Part of the pika plugin — 20 skills, 1 MCP server shipped together

not rated 40repo 1mo ago A scan Socket: passSnyk: passSkillSpector: warn 105 tokens original Apache-2.0

Good fit Use it to apply one requested visual effect to one video clip, including changes timed to dialogue, music, sound effects, or ambience, and produce one 4K clip.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pika-labs/pika-plugins/4k-vfx
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Pika-Labs/Pika-Plugins --skill 4k-vfx
Clone the repo
git clone --depth 1 https://github.com/Pika-Labs/Pika-Plugins

Made for: Claude Code.

Or install pika, the plugin that ships this one along with the rest of its 20 skills, 1 MCP server.

Wrote 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.

agentmods badge for 4k-vfx

README.md
[![agentmods](https://agentmods.dev/badge/skills/pika-labs/pika-plugins/4k-vfx/github.svg)](https://agentmods.dev/skills/pika-labs/pika-plugins/4k-vfx)
Your own site
<a href="https://agentmods.dev/skills/pika-labs/pika-plugins/4k-vfx"><img src="https://agentmods.dev/badge/skills/pika-labs/pika-plugins/4k-vfx/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.

agentmods 80×15 button for 4k-vfx

Your own site · 80×15
<a href="https://agentmods.dev/skills/pika-labs/pika-plugins/4k-vfx"><img src="https://agentmods.dev/badge/skills/pika-labs/pika-plugins/4k-vfx.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 105 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,880 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket pass 21 Jul 2026
  • Snyk pass 21 Jul 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 116
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00105 $0.03880
Opus 5 $0.00053 $0.01940
Sonnet 5 $0.00021 $0.00776
Haiku 4.5 $0.00011 $0.00388

Measured 9d ago against content hash 5cf3f7d17c34, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

4k-vfx 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • vfx — 88% identical, 61 lines differ
skills/4k-vfx/SKILL.md · 148 lines

How it starts

The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.

4k-vfx

Maps a video-to-video VFX move onto the Pika MCP's Seedance 4K reference-to-video. The user hands you a clip + the change they want; you read EVERY frame (locally extracted with ffmpeg and tiled into contact sheets) and understand the audio (speech + music + SFX + ambience), author a Seedance-faithful prompt that locks the original (face, gestures, camera move) and time-codes the change to the right beat, then re-render the same shot in 4K with the VFX baked in. One run produces one 4K clip for one requested change.

How it works — why reading EVERY frame (and the audio) is the mechanism (do not skip the reading pass)

Seedance treats the reference video as a motion/style anchor, NOT a pixel-locked base — it does not copy the input frame-for-frame, it re-generates the shot guided by your prompt. So fidelity comes from the PROMPT: the more exhaustively the prompt describes the original (subject identity, exact gestures, camera move, framing, lighting, palette, wardrobe) and the audio (dialogue + lip-sync, music/SFX beats), the more the 4K output reads as the same shot with the change layered on. Reading EVERY frame — not a sample — is how you build that exhaustive description: you locally extract all frames with ffmpeg, tile them 25-to-a-contact-sheet (5×5), and analyze every sheet so the prompt is built from the entire timeline rather than a handful of stills. Skip the read (or read only a sample) and the output drifts — a different face, a different camera move, a different room, a missed motion beat. The reading pass — all frames + the audio — IS the skill.

Prerequisites

pika MCP available, and local ffmpeg in the run environment (used to extract every frame and build the contact sheets). Two inputs from the user: (1) a video clip (a local file or a public URL) and (2) the VFX change they want made to it. Tools used: upload_asset, probe_media, analyze_media, transcribe_audio, estimate_cost, generate_reference_video, task_status (frame extraction + tiling is done locally with ffmpeg, not an MCP tool).

Read the full file on GitHub · 148 lines

Changes

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.

  1. 9d ago First seen · 148 lines · 105 tokens per session scan A 5cf3f7d17c34

Subscribe to this mod's changes

4k-vfx is a skill published in the GitHub repository Pika-Labs/Pika-Plugins (40 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 105 tokens to every session and 3,880 once invoked, about $0.0005 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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