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 bromso/metapowers --skill ad-creativegit clone --depth 1 https://github.com/bromso/metapowersWrote 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/bromso/metapowers/ad-creative)<a href="https://agentmods.dev/skills/bromso/metapowers/ad-creative"><img src="https://agentmods.dev/badge/skills/bromso/metapowers/ad-creative/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/bromso/metapowers/ad-creative"><img src="https://agentmods.dev/badge/skills/bromso/metapowers/ad-creative.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 | $0.00061 | $0.00721 |
| Opus 5.5 | $0.00024 | $0.00288 |
| Sonnet 5.5 | $0.00012 | $0.00144 |
| Haiku 4.5 | $0.00006 | $0.00072 |
Grade A, and why
ad-creative scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 54 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Ad Creative
Generate ad copy and creative briefs for "$ARGUMENTS". Create platform-specific ad variations with headlines, descriptions, and creative direction.
Arguments. $ARGUMENTS may contain the project name and optional flags. Take the first token as <project> and treat --skip-checks as a flag; never include flags in file paths. All paths below use <project>. If --skip-checks is present, skip the prerequisite check and, before writing any artifact, append one line to .metapowers/marketing/<project>/skip-log.md: - <ISO timestamp> — <skill name> skipped prerequisite check for <artifact file> — reason: <reason or "none given">.
Prerequisites
Read .metapowers/marketing/<project>/00-strategy.md. If this file does not exist, tell the user:
Phase 0 (Strategy) has not been completed for "". Run
/marketing:customer-research <project>first, or use--skip-checksto bypass.
Process
-
Read context:
- Read
.metapowers/marketing/<project>/00-strategy.mdfor messaging and positioning - Read
.metapowers/marketing/<project>/03-convert.mdif it exists (for campaign context)
- Read
-
Define ad format requirements:
- Platform and ad type (search, display, social feed, video, carousel)
- Character limits per field
- Image/video specs if applicable
- Number of variants needed
-
Write ad copy variants:
- For search ads: 5+ headline variants (30 chars), 3+ description variants (90 chars)
- For social ads: primary text, headline, description, CTA button
- Apply different angles: benefit-led, problem-led, social-proof-led, urgency-led
- Use audience language from customer research
-
Creative brief (for visual ads):
- Visual direction and mood
- Required elements (logo, product shot, CTA)
- Color palette and brand guidelines
- Image vs. illustration vs. video recommendation
- A/B test variants for creative
-
Write the artifact — append to
.metapowers/marketing/<project>/03-convert.mdunder a## Ad Creativesection. Create the file with a# Convert — <project>heading if it does not exist; if a## Ad Creativesection already exists, replace only that section. The section contains:- Ad Specs — platform, format, character limits
- Copy Variants — all headline and description options
- Creative Brief — visual direction for design team
- A/B Test Plan — which variants to test first
- Performance Hypotheses — which angles should win and why
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.
- 3d ago First seen · 54 lines · 61 tokens per session scan A e4eb16d72efe
ad-creative is a skill published in the GitHub repository bromso/metapowers (2 stars, last pushed 3d ago), licensed MIT. It adds 61 tokens to every session and 721 once invoked, about $0.0002 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 2026-10-21.
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