What is clipkit AGENTS.md?

A project guide for creating Clipkit videos, which describe motion graphics as JSON data that a compatible program turns into frames or MP4 files.

Use it to choose Clipkit elements, structure source JSON, and combine TypeScript helpers into complete animated videos.

It gives coding agents and authors the rules, element types, timing details, and reusable patterns needed to write valid Clipkit video descriptions.

How clipkit-video/clipkit configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to clipkit-video/clipkit. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/clipkit-video/clipkit/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/clipkit-video/clipkit

Made for: Codex, OpenCode.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/clipkit-video/clipkit/agents-md/github.svg)](https://agentmods.dev/instructions/clipkit-video/clipkit/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/clipkit-video/clipkit/agents-md"><img src="https://agentmods.dev/badge/instructions/clipkit-video/clipkit/agents-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/clipkit-video/clipkit/agents-md"><img src="https://agentmods.dev/badge/instructions/clipkit-video/clipkit/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 13,093 This file is loaded in full into every session.

When invoked 13,093 The same file — it is already loaded in full.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.13093	$0.13093
Opus 5.5	$0.05237	$0.05237
Sonnet 5.5	$0.02619	$0.02619
Haiku 4.5	$0.01309	$0.01309

Measured 2mo ago against content hash 5b6373af3e4a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

clipkit AGENTS.md scanned grade A with 1 finding 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

flat card with curl at the rim), `edge_highlight` (the whole light

AGENTS.md · 1,039 lines

How it starts

The opening of the file, as written. The whole thing — 1,039 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Clipkit — Authoring guide (AGENTS.md)

This file is the authoring-time context for AI tools (and humans) writing Clipkit videos. Paste it into a system prompt or attach it to a Claude project. For the formal protocol spec — element types, field semantics, conformance levels, normative MUST/SHOULD/MAY — see PROTOCOL.md.

Clipkit is a protocol for describing motion-graphics videos as JSON. A Source document is the list of elements (with timing and animations) that a conforming runtime turns into frames or MP4.

There are two layers you work with as an author:

Primitives — the element types defined by the Clipkit Protocol. The formal spec is in PROTOCOL.md. Section 1 below is a quick cheat sheet so you don't have to bounce out for common lookups, but PROTOCOL.md is the source of truth.
Patterns — authoring-time TypeScript helpers in @clipkit/patterns that produce primitive elements. You never reference patterns in a Source JSON; you call them in TS/JS and inline their output. Patterns are documented in section 2 (Pattern catalog).

Section 3 (Recipes) walks through complete example videos showing how patterns compose into a full piece.

0. Which surface to use

Before authoring anything, pick the right surface for your context. There are two — they layer cleanly, no overlap.

You are running in…	Use…	How
Claude Code, Cursor, Replit Agent, or any IDE-embedded AI with file + shell access	`@clipkit/cli`	Write files (`video.ts` or a JSON source) using this doc as context. Run `npx @clipkit/cli render`, `validate`, or `preview` via Bash. Skip MCP entirely.
Claude.ai chat, Claude Desktop without local tools, or any chat-mode AI without filesystem access	`@clipkit/mcp-server`	Call the MCP tools — `set_project` to build (the full creative canvas), `create_promo` to compose from prebuilt scenes, `add_element`/`edit_element`/`delete_element` to tweak, `preview_still`/`validate_project`/`describe_project` to check, `open_in_editor`/`render_video` to deliver. The server holds state for you.
A human developer	`@clipkit/cli`	`npx @clipkit/cli init my-video`, edit files, `npx @clipkit/cli render`. Same path as IDE-embedded AI.
CI / a build script	`@clipkit/cli`	One-shot `clipkit render input.json --out out.mp4`.

Read the full file on GitHub · 1,039 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.

2mo ago First seen · 1,039 lines · 13,093 tokens per session scan A 5b6373af3e4a

Subscribe to this mod's changes

clipkit AGENTS.md is an instructions file published in the GitHub repository clipkit-video/clipkit (19 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 13,093 tokens to every session, about $0.0524 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Creative and media

clipkit AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
clipkit AGENTS.mdclipkit-video/clipkit	Instructions file	19	2mo ago	Apache-2.0	A	13,093	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode ai-customization.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	1,907	GitHub Copilot

clipkit: Instructions file for Codex