What is open-animate CLAUDE.md?

Project instructions for open-animate, a tool for creating animations, including rules for research, progress tracking, building, and testing with Remotion, a React-based video framework.

Use it when changing open-animate, especially its Remotion components, to update progress and tickets, run the build, and verify changes in an example project.

It keeps development work consistent with the project's required records, build checks, type constraints, and example-based testing.

How jacobcwright/open-animate configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to jacobcwright/open-animate. 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/jacobcwright/open-animate/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/jacobcwright/open-animate

Made for: Claude Code.

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

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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/jacobcwright/open-animate/claude-md"><img src="https://agentmods.dev/badge/instructions/jacobcwright/open-animate/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,598 This file is loaded in full into every session.

When invoked 1,598 The same file — it is already loaded in full.

Security scan A 0 findings. 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	$0.01598	$0.01598
Opus 5.5	$0.00639	$0.00639
Sonnet 5.5	$0.00320	$0.00320
Haiku 4.5	$0.00160	$0.00160

Measured 2mo ago against content hash 5ca0a86b5964, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

open-animate CLAUDE.md 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 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.

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.

CLAUDE.md · 140 lines

How it starts

The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md — oanim (open-animate)

Rules

Use subagents for research. When looking up Remotion APIs, fal.ai docs, or any external reference, spawn a subagent (Explore or general-purpose) instead of doing inline research. Keep the main context focused on implementation.
Update progress.md and prd.json after each task. When completing work:
- Append a dated entry to progress.md describing what was done
- Update the relevant ticket(s) in prd.json — set status to "done", add notes if needed
- Add new tickets to prd.json for any follow-up work discovered
Build before committing. Always run pnpm build and verify it succeeds before committing. The core package must produce valid DTS output (no TypeScript errors in declaration generation).
Remotion type constraints. TransitionPresentation<T> requires T extends Record<string, unknown>. Any props interfaces for transitions must use extends Record<string, unknown>. This was a real build failure — don't repeat it.
Test against real Remotion. When adding or modifying @oanim/core components, verify they work in at least one example project (examples/hello-world or examples/launch-video) by checking npx remotion studio opens.
Keep the CLI thin. The oanim CLI wraps Remotion's own tooling — it does not reimplement rendering. oanim render shells to npx remotion render with config from animate.json.
No JSX in .ts files. Remotion components use React.createElement() in .ts files or JSX in .tsx files. The core package uses React.createElement() throughout for maximum compatibility. Keep this consistent.
Workspace topology matters. Both packages/* and examples/* are in the pnpm workspace. Examples reference @oanim/core as workspace:*. This means pnpm install at root links them automatically.

What is oanim

Open-source CLI + component library + agent skill for creating React motion graphics via Remotion and exporting MP4.

Read the full file on GitHub · 140 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 · 140 lines · 1,598 tokens per session scan A 5ca0a86b5964

Subscribe to this mod's changes

open-animate CLAUDE.md is an instructions file published in the GitHub repository jacobcwright/open-animate (26 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 1,598 tokens to every session, about $0.0064 per session on Opus 5.5. 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.

Creative and media

open-animate CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
open-animate CLAUDE.mdjacobcwright/open-animate	Instructions file	26	7mo ago	Apache-2.0	A	1,598	Claude Code
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next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,649	GitHub Copilot
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 model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

open-animate: Instructions file for Claude Code