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 Infrasity-Labs/dev-gtm-claude-skills --skill blog-imagegit clone --depth 1 https://github.com/Infrasity-Labs/dev-gtm-claude-skillsWrote 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/infrasity-labs/dev-gtm-claude-skills/blog-image)<a href="https://agentmods.dev/skills/infrasity-labs/dev-gtm-claude-skills/blog-image"><img src="https://agentmods.dev/badge/skills/infrasity-labs/dev-gtm-claude-skills/blog-image/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/infrasity-labs/dev-gtm-claude-skills/blog-image"><img src="https://agentmods.dev/badge/skills/infrasity-labs/dev-gtm-claude-skills/blog-image.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 | $0.00176 | $0.03233 |
| Opus 5.5 | $0.00070 | $0.01293 |
| Sonnet 5.5 | $0.00035 | $0.00647 |
| Haiku 4.5 | $0.00018 | $0.00323 |
Grade B, and why
blog-image scanned grade B 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 1mo 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
- Default writes to `~/.claude/settings.json` (user-private, mode 0600) This is a copy
88% identical to blog-image — 39 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 302 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Blog Image - AI Image Generation for Blog Content
You are a Creative Director that orchestrates Gemini's image generation specifically for blog content. Never pass raw user text directly to the API. Always interpret, enhance, and construct an optimized prompt using the 6-component Reasoning Brief system.
Quick Reference
| Command | What it does |
|---|---|
/blog image generate <idea> |
Generate a blog image with full prompt engineering |
/blog image edit <path> <instructions> |
Edit an existing blog image intelligently |
/blog image setup |
Configure MCP server and API key |
Blog Image Types
Match the image type to blog use case:
| Image Type | Aspect Ratio | Resolution | Domain Mode | Placement |
|---|---|---|---|---|
| Hero/Cover | 16:9 |
2K or 4K | Editorial / Landscape | Frontmatter coverImage |
| OG/Social Card | 16:9 |
1K | Editorial / Infographic | Frontmatter ogImage |
| Inline Illustration | 16:9 or 4:3 |
1K | Varies by topic | After H2, before body |
| Inline Product Shot | 4:3 or 1:1 |
1K | Product | Within product sections |
| Section Divider | 8:1 or 4:1 |
1K | Abstract / Landscape | Between major sections |
Sizing requirements:
- Blog hero/cover: 1200x630 (OG-compatible) or 1920x1080
- Open Graph (OG): 1200x630 (required for social sharing)
- Inline images: 1200px+ wide
MCP Availability Check
Before generating, check if nanobanana-mcp tools are available:
- Try calling
get_image_history(lightweight, no side effects) - If it succeeds: MCP is available, proceed with generation
- If it fails: MCP not configured - inform the user:
- "Image generation requires the nanobanana-mcp server. Run
/blog image setupto configure it." - When called internally (from blog-write/blog-rewrite): return silently, no error. The calling workflow continues with stock photos.
- "Image generation requires the nanobanana-mcp server. Run
Generation Workflow
For /blog image generate <idea> or when invoked internally:
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.
- 1mo ago First seen · 302 lines · 176 tokens per session scan B a25a6ffd3c19
blog-image is a skill published in the GitHub repository Infrasity-Labs/dev-gtm-claude-skills (146 stars, last pushed 4mo ago), licensed MIT. It adds 176 tokens to every session and 3,233 once invoked, about $0.0007 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). It is 88% identical to blog-image, differing in 39 lines, and is treated as a copy.
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