agentmods.dev

lyt: Instructions file for Codex

AGENTS.md

lyt AGENTS.md is an instructions file for Codex, OpenCode from TanaTTV/lyt. It costs 562 tokens per session, scanned A, original, MIT.

A repository instruction file describing how to work on TanaTTV/lyt, a Node.js command-line tool that wraps yt-dlp and ffmpeg for downloading or processing media.

In plain words
What is it for?
Use it to find the project’s entry points, run its tests and website checks, understand the experimental desktop app’s status, and verify packaged builds.
Why use it?
It explains the repository’s non-obvious setup, supported areas, and standard checks so an agent does not assume ordinary dependency or release practices.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md.

This is TanaTTV/lyt's own configuration. It tells Codex and OpenCode how to work on lyt itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything lyt configures →

not rated 1repo 4d ago A scan 562 tokens original MIT
View source ↗ TanaTTV/lyt tanattv.github.io
Reuse

Borrowing it

Nothing to install: this file belongs to TanaTTV/lyt. 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/TanaTTV/lyt/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/TanaTTV/lyt

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.

agentmods badge for lyt AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/tanattv/lyt/agents-md/github.svg)](https://agentmods.dev/instructions/tanattv/lyt/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/tanattv/lyt/agents-md"><img src="https://agentmods.dev/badge/instructions/tanattv/lyt/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.

agentmods 80×15 button for lyt AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/tanattv/lyt/agents-md"><img src="https://agentmods.dev/badge/instructions/tanattv/lyt/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 562 This file is loaded in full into every session.
When invoked 562 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00562 $0.00562
Opus 5.5 $0.00225 $0.00225
Sonnet 5.5 $0.00112 $0.00112
Haiku 4.5 $0.00056 $0.00056

Measured 2mo ago against content hash bfb314fd1cdd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lyt 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.

AGENTS.md · 41 lines

How it starts

The opening of the file, as written. The whole thing — 41 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Cursor Cloud specific instructions

lyt is a zero-runtime-dependency Node.js CLI (Node 20+) that wraps yt-dlp and ffmpeg. The npm package and the website/ static site have no npm dependencies and no lockfiles, so npm install is a no-op. Do not expect a node_modules directory.

Services / surfaces

  • CLI (production product): entry points bin/lyt.js, bin/yt3.js, bin/yt4.js. Run directly, e.g. node bin/lyt.js --help.
  • Website (website/): dependency-free static site. Standard commands live in website/package.json (build, check, serve). npm run serve listens on 127.0.0.1:4173.
  • Desktop app (app/): experimental Tauri prototype, explicitly NOT part of the release (see app/README.md). Requires Rust/Tauri toolchain; out of scope for normal development.

Lint / test / build / run

  • There is no separate lint step in this repo. Standard commands are in package.json and README.md (npm test, npm run check:pack, npm run check:website, npm run check, npm run smoke:linux).
  • npm run check runs the Node test suite + npm-pack payload verification + website build/SEO checks.
  • npm run smoke:linux packs the CLI, installs it globally to a temp prefix, and performs a real permitted download from Wikimedia Commons (needs network
    • a provisioned yt-dlp).

yt-dlp provisioning (non-obvious)

  • ffmpeg is preinstalled system-wide, but yt-dlp is NOT on PATH.
  • lyt manages its own checksum-verified yt-dlp binary under ~/.local/share/lyt/bin/. The startup update script runs node bin/lyt.js doctor --fix to provision it ahead of time; the CLI also auto-downloads it on first real use. The unit tests do NOT need yt-dlp (they mock it), so tests pass even before provisioning.
  • Provisioning and real downloads need outbound network (GitHub releases for the binary, and the media host). Use lyt doctor to confirm readiness.
  • Clipboard integration is unavailable on this headless Linux VM (no xclip/xsel/wl-clipboard); --paste/--watch will not work here.

Read the full file on GitHub · 41 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. 2mo ago First seen · 41 lines · 562 tokens per session scan A bfb314fd1cdd

Subscribe to this mod's changes

lyt AGENTS.md is an instructions file published in the GitHub repository TanaTTV/lyt (1 stars, last pushed 4d ago), licensed MIT. It adds 562 tokens to every session, about $0.0022 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 2026-08-31.

audio-downloaderclicommand-line-tooldownloaderffmpegnodejs
Related

lyt AGENTS.md compared with instructions from other repositories

lyt AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
lyt AGENTS.mdTanaTTV/lytInstructions file14d agoMITA562Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,649GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA2,022GitHub Copilot