Borrowing it
Nothing to install: this file belongs to simplexlabs/montage. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/simplexlabs/montage/main/AGENTS.mdgit clone --depth 1 https://github.com/simplexlabs/montageWrote 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/instructions/simplexlabs/montage/agents-md)<a href="https://agentmods.dev/instructions/simplexlabs/montage/agents-md"><img src="https://agentmods.dev/badge/instructions/simplexlabs/montage/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.
<a href="https://agentmods.dev/instructions/simplexlabs/montage/agents-md"><img src="https://agentmods.dev/badge/instructions/simplexlabs/montage/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.04917 | $0.04917 |
| Opus 5.5 | $0.01967 | $0.01967 |
| Sonnet 5.5 | $0.00983 | $0.00983 |
| Haiku 4.5 | $0.00492 | $0.00492 |
Grade A, and why
montage AGENTS.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.
How it starts
The opening of the file, as written. The whole thing — 372 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Cursor Cloud specific instructions
Overview
This is a Next.js + Remotion programmatic video editing project. There are two dev services:
- Remotion Studio — interactive preview/editing environment for video compositions
- Next.js dev server — web UI with embedded
@remotion/player
No database, Docker, or external services are required for local development.
Running services
See README.md for standard commands (npm run dev, npx remotion studio, etc.).
- Remotion Studio (local non-Cursor only):
npx remotion studio src/remotion/index.ts(default port 3000; use--port 3123to avoid conflicts with Next.js) - Cursor/Cloud containers: do not run
npx remotion studio(it can crash Cursor containers). Instead, render individual frames (npx remotion still) and individual section segments (npx remotion render --frames=<start>-<end>). - Next.js dev:
npm run dev(port 3000) - Render a still frame:
npx remotion still src/remotion/index.ts <CompositionId> --frame=<N> --output=/tmp/frame.png
Rendering workflow
Do NOT one-shot all sections at once without viewing them. For each section and each change you make to a section/sequence in the master composition, you MUST render stills and visually inspect them before moving on. Build one section → register it → render key frames → verify → then move to the next. Always show the rendered stills inline so the user can glance at progress. Do NOT ask for approval — just show and keep moving.
Render stills to inspect animations frame-by-frame:
npx remotion still src/remotion/index.ts <CompositionId> --frame=<N> --output=/tmp/frame.png
Render a section as MP4 to show completed work:
npx remotion render src/remotion/index.ts <CompositionId> --output=/opt/cursor/artifacts/<name>.mp4 --frames=<start>-<end> --concurrency=1
Render the full composition:
npx remotion render src/remotion/index.ts <CompositionId> --output=/opt/cursor/artifacts/<name>.mp4 --concurrency=1
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 · 372 lines · 4,917 tokens per session scan A 21892605bf1d
montage AGENTS.md is an instructions file published in the GitHub repository simplexlabs/montage (28 stars, last pushed 8mo ago), licensed MIT. It adds 4,917 tokens to every session, about $0.0197 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.
montage AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| montage AGENTS.mdsimplexlabs/montage | Instructions file | 28 | 8mo ago | MIT | A | 4,917 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |