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 avenoxai/avenoxskills --skill avenox-thumbnailgit clone --depth 1 https://github.com/avenoxai/avenoxskillsWrote 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/avenoxai/avenoxskills/avenox-thumbnail)<a href="https://agentmods.dev/skills/avenoxai/avenoxskills/avenox-thumbnail"><img src="https://agentmods.dev/badge/skills/avenoxai/avenoxskills/avenox-thumbnail/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/avenoxai/avenoxskills/avenox-thumbnail"><img src="https://agentmods.dev/badge/skills/avenoxai/avenoxskills/avenox-thumbnail.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 | $0.00102 | $0.01289 |
| Opus 5.5 | $0.00041 | $0.00516 |
| Sonnet 5.5 | $0.00020 | $0.00258 |
| Haiku 4.5 | $0.00010 | $0.00129 |
Grade A, and why
avenox-thumbnail 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 — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Thumbnail Factory
A systematic pipeline for producing scroll-stopping YouTube thumbnails for a mascot-driven channel. It encodes the formula, the working prompt recipe, the hook-pattern playbook, and the hard safety rules learned in production.
Built for anonymous / faceless channels: the mascot is the face, so the covers stay consistent without ever putting a person on screen.
Anonymity rule: never put the creator's real name, personal handle, or likeness on a thumbnail. If the channel is anonymous, the mascot is the identity — breaking that once is not reversible.
Configure before first use
| Setting | Where | Example |
|---|---|---|
| Mascot reference image | assets/mascot-ref.png |
see assets/README.md |
| Mascot on-model contract | references/character-and-safety.md |
fill in the contract block |
| Hook language | prompt (HOOK_LANG) |
Turkish, English, … |
| Output dir | $THUMB_OUT |
~/Desktop/thumbnails |
The formula
Every thumbnail = 4 ingredients, nothing more (3-element rule; blink-test first — if it doesn't read in a quarter second at sidebar size, it failed):
- The mascot — on-model, expressive pose that fits the video's emotion.
- One 2-4 word hook — MASSIVE bold sans-serif caps, white + ONE accent word, thick black outline. Never duplicate the video title; open a curiosity gap that the title and video close.
- Relevant tool logo(s) — so the topic is legible in one glance.
- High-contrast modern background — dark + one strong accent color (red = urgency, green = success, blue = tech, purple = automation, gold = money). Bright, saturated, clean.
Design levers (apply, don't just decorate): curiosity gap • negativity/risk • contrast (before/after, ✓/✗) • tangible number or timeframe • authority • one clear focal point • lower-right corner kept clear (YouTube stamps the duration there) • text left / mascot right reads best.
Full hook playbook → references/hook-patterns.md.
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 111 lines · 102 tokens per session scan A ceadbc2e0fe3
avenox-thumbnail is a skill published in the GitHub repository avenoxai/avenoxskills (112 stars, last pushed 19d ago), licensed MIT. It adds 102 tokens to every session and 1,289 once invoked, about $0.0004 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.
avenox-thumbnail compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| avenox-thumbnailavenoxai/avenoxskills | Skill | 112 | 19d ago | MIT | A | 102 | Claude Code, Codex |
| wiki-context-packAr9av/obsidian-wiki | Skill | 3.7k | yesterday | MIT | A | 63 | Claude Code |
| security-reviewwaybarrios/opencode-power-pack | Skill | 551 | 4d ago | MIT | A | 64 | Claude Code |
| huggingface-llm-trainerwaybarrios/opencode-power-pack | Skill | 551 | 4d ago | MIT | A | 65 | Claude Code |
| feature-devwaybarrios/opencode-power-pack | Skill | 551 | 4d ago | MIT | A | 62 | Claude Code |
| semgrep-rule-variant-creatorwaybarrios/opencode-power-pack | Skill | 551 | 4d ago | MIT | A | 50 | Claude Code |
| wordpress-com-webhookshookdeck/webhook-skills | Skill | 98 | yesterday | MIT | A | 160 | Claude Code, Codex |