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.
npx skills add krusemediallc/cursor-ad-agent --skill generate-youtube-thumbnail-arcads-mcpgit clone --depth 1 https://github.com/krusemediallc/cursor-ad-agentWrote 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/skills/krusemediallc/cursor-ad-agent/generate-youtube-thumbnail-arcads-mcp)<a href="https://agentmods.dev/skills/krusemediallc/cursor-ad-agent/generate-youtube-thumbnail-arcads-mcp"><img src="https://agentmods.dev/badge/skills/krusemediallc/cursor-ad-agent/generate-youtube-thumbnail-arcads-mcp/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/skills/krusemediallc/cursor-ad-agent/generate-youtube-thumbnail-arcads-mcp"><img src="https://agentmods.dev/badge/skills/krusemediallc/cursor-ad-agent/generate-youtube-thumbnail-arcads-mcp.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 | $0.00103 | $0.02135 |
| Opus 5 | $0.00051 | $0.01068 |
| Sonnet 5 | $0.00021 | $0.00427 |
| Haiku 4.5 | $0.00010 | $0.00214 |
Grade A, and why
generate-youtube-thumbnail-arcads-mcp 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 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
| `generate-batch.sh` + curl auth / `.env` | `arcads_generate_image_nano_banana` (MCP handles auth) | How it starts
The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Generate YouTube Thumbnail (Arcads MCP)
Create high-CTR YouTube thumbnails with Nano Banana 2 at 16:9 through the Arcads MCP server, with proper character likeness and proven CTR formulas.
This is the MCP-native version of generate-youtube-thumbnail. No .env, no
HTTP Basic auth, no generate-batch.sh, no manual presigned-upload pipeline.
REST generate-youtube-thumbnail step |
MCP replacement |
|---|---|
generate-batch.sh + curl auth / .env |
arcads_generate_image_nano_banana (MCP handles auth) |
POST /v2/images/generate nano-banana-2 |
arcads_generate_image_nano_banana(model="nano-banana-2") |
| presigned upload + S3 PUT (in-script) | arcads_get_upload_url + PUT (explicit — see Uploading) |
GET /v1/assets/{id} polling loop |
arcads_watch_asset (status and URL in one call) |
| N parallel POSTs for N concepts | nbGenerations (1–10) in a single call |
productId from MASTER_CONTEXT |
auto-selects (one product) |
Tools used (Arcads MCP)
| Tool | Role |
|---|---|
arcads_generate_image_nano_banana |
Generate thumbnails. model:"nano-banana-2", aspectRatio:"16:9", referenceImages (face/brand/product), nbGenerations. |
arcads_get_upload_url |
Presigned S3 URL per local reference (face photos, logo, product). Required in remote agent clients such as Cursor. |
arcads_watch_asset |
Poll status and fetch the signed downloadUrl. Primary poll tool. |
arcads_list_products |
Resolve productId (optional — auto-selects). |
Key parameters
| Param | Value | Notes |
|---|---|---|
model |
"nano-banana-2" |
Up to 14 reference images — pass several face angles for likeness. |
aspectRatio |
"16:9" |
Always 16:9 for YouTube (renders 2752×1536). |
referenceImages |
array, ≤14 | Face headshot + 3/4 angles + expressions; brand/logo; product. S3 filePaths. |
nbGenerations |
1–10 |
A/B variations in one call. |
Read order
- This file — the MCP workflow, batch generation.
- ../../shared/skills/generate-youtube-thumbnail/prompting/guide.md — likeness alignment, expressions cheat sheet, prompt structure.
- ../../shared/skills/generate-youtube-thumbnail/prompting/formulas.md — 5 proven CTR formulas with templates. Read before composing.
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 · 133 lines · 103 tokens per session scan A 180095403e73
generate-youtube-thumbnail-arcads-mcp is a skill published in the GitHub repository krusemediallc/cursor-ad-agent (10 stars, last pushed 1mo ago), licensed MIT. It adds 103 tokens to every session and 2,135 once invoked, about $0.0005 per session on Opus 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 2026-08-31.
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