What is grok-membership-media?

A workflow for using paid ChatGPT and Grok memberships to create website preview images and MP4 videos without developer APIs or API keys.

Use it for website hero videos, product videos, animated visuals, or workflows that combine a generated first frame with a Grok video.

It provides a defined process for checking access, generating media, waiting for completion, and verifying the resulting files before website integration.

grok-membership-media — Skill for Claude Code and Codex by Zhao73

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 Zhao73/grok-membership-media-mcp --skill grok-membership-media

Clone the repo

git clone --depth 1 https://github.com/Zhao73/grok-membership-media-mcp

Made for: Claude Code, Codex.

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/skills/zhao73/grok-membership-media-mcp/grok-membership-media/github.svg)](https://agentmods.dev/skills/zhao73/grok-membership-media-mcp/grok-membership-media)

Your own site

<a href="https://agentmods.dev/skills/zhao73/grok-membership-media-mcp/grok-membership-media"><img src="https://agentmods.dev/badge/skills/zhao73/grok-membership-media-mcp/grok-membership-media/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/skills/zhao73/grok-membership-media-mcp/grok-membership-media"><img src="https://agentmods.dev/badge/skills/zhao73/grok-membership-media-mcp/grok-membership-media.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 462 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.

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	$0.00033	$0.00462
Opus 5	$0.00016	$0.00231
Sonnet 5	$0.00007	$0.00092
Haiku 4.5	$0.00003	$0.00046

Measured 12d ago against content hash 46e64174d949, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

grok-membership-media 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 12d 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.

skills/grok-membership-media/SKILL.md · 41 lines

What it actually says

Grok Membership Media

Use the grok-membership-media MCP whenever the user requests a website hero video, product video, animated visual, Grok video, or a GPT-first-frame plus Grok-video workflow.

Required workflow

Inspect the current website and choose the target aspect ratio and output directory.
Call media_doctor. Never start generation unless it reports Grok auth_mode = grok.com_membership, api_key_auth_disabled = true, and developer_api_enabled = false.
Call start_website_video. Use first_frame_provider = auto unless the user explicitly chooses ChatGPT, Grok, or supplies an existing source image.
Poll get_media_job; do not start another job while the first is queued, running, or submitted_unknown.
On completion, verify the MP4, web MP4, poster, first frame, manifest, and SHA-256 fields before editing the website.
Only modify the website if the user requested integration. Use the muted web MP4 for autoplay and preserve the master MP4 with audio.

Hard constraints

Never request, configure, or use XAI_API_KEY, OPENAI_API_KEY, or any developer API.
ChatGPT generation must remain --backend web; never use auto or codex.
Grok generation must remain the locally installed Grok Build CLI with GROK_DISABLE_API_KEY_AUTH=1.
Grok supports video duration 6 or 10 seconds and resolution 480p or 720p.
Video starts from an image. GPT web is preferred for the first frame; Grok membership image_gen is used only if GPT is unavailable before submission.
Never auto-retry submitted_unknown or any task that already emitted a Grok media tool_call.
Never place MP4 bytes/base64 in model context; return and use local paths.

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.

12d ago First seen · 41 lines · 33 tokens per session scan A 46e64174d949

Subscribe to this mod's changes

grok-membership-media is a skill published in the GitHub repository Zhao73/grok-membership-media-mcp (1 stars, last pushed 1mo ago), licensed MIT. It adds 33 tokens to every session and 462 once invoked, about $0.0002 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 2026-08-31.

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