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 TheGoat395/Codex-Skills --skill web-imagegen-promptinggit clone --depth 1 https://github.com/TheGoat395/Codex-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/thegoat395/codex-skills/web-imagegen-prompting)<a href="https://agentmods.dev/skills/thegoat395/codex-skills/web-imagegen-prompting"><img src="https://agentmods.dev/badge/skills/thegoat395/codex-skills/web-imagegen-prompting/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/thegoat395/codex-skills/web-imagegen-prompting"><img src="https://agentmods.dev/badge/skills/thegoat395/codex-skills/web-imagegen-prompting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00016 | $0.00267 |
| Opus 5 | $0.00008 | $0.00133 |
| Sonnet 5 | $0.00003 | $0.00053 |
| Haiku 4.5 | $0.00002 | $0.00027 |
Grade A, and why
web-imagegen-prompting 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 5d 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.
What it actually says
Web Imagegen Prompting
Use this skill to make generated imagery usable as website media instead of vague atmospheric filler.
Workflow
- Inspect the project, media assets, framework image/video APIs, responsive breakpoints, accessibility requirements, and verification commands.
- Read Web Imagegen Prompting Guide for detailed direction before changing visuals or code.
- Define the media's job: proof, desire, navigation, instruction, atmosphere, conversion, or accessibility.
- Implement with stable dimensions, responsive crops, useful fallbacks, and real content hierarchy.
- Inspect rendered desktop and mobile states, then refine crop, contrast, loading, labels, captions, and polish.
Scoped execution
Apply the shared web contract once when execution crosses phases; reuse it if already read. Load only the specialist guidance relevant to the requested surface and deliverable.
Scope and evidence
Prompt-only requests end with usable prompts and crop/placement constraints. Generation and image editing use the available image tool only when in scope; website integration and rendered crop QA apply only to actual implemented assets.
What ships with it
2 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.
- 5d ago Changed · -2 lines · -56 tokens per session 457ae6b97f81
- 7d ago First seen · 27 lines · 72 tokens per session scan A 7061753529a5
web-imagegen-prompting is a skill published in the GitHub repository TheGoat395/Codex-Skills (122 stars, last pushed today), licensed MIT. It adds 16 tokens to every session and 267 once invoked, about $0.0001 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 2026-09-03.
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