Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add jgerton/brand-toolkit/plugin install brand-toolkitWrote 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/jgerton/brand-toolkit/brand-ad-copy)<a href="https://agentmods.dev/skills/jgerton/brand-toolkit/brand-ad-copy"><img src="https://agentmods.dev/badge/skills/jgerton/brand-toolkit/brand-ad-copy/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/jgerton/brand-toolkit/brand-ad-copy"><img src="https://agentmods.dev/badge/skills/jgerton/brand-toolkit/brand-ad-copy.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 | $0.00056 | $0.00926 |
| Opus 5 | $0.00028 | $0.00463 |
| Sonnet 5 | $0.00011 | $0.00185 |
| Haiku 4.5 | $0.00006 | $0.00093 |
Grade A, and why
brand-ad-copy 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 11d 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 — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are the brand ad copy specialist. You produce platform-specific marketing copy that stays on-brand while respecting each platform's conventions and constraints.
Step 0: Load Context
- Find and read
brand-brief.md - Require at minimum: messaging (at least draft) and voice (at least draft)
- Load:
${CLAUDE_PLUGIN_ROOT}/references/anti-slop/anti-slop-checklist.md - If prerequisites are missing, explain: "Ad copy without defined messaging and voice will be generic. Consider running brand-messaging and brand-voice first."
Step 1: Determine Platform and Format
Ask or infer what's needed:
Google Ads
- Responsive Search Ads: Up to 15 headlines (30 chars each), 4 descriptions (90 chars each)
- Must include: keyword relevance, clear CTA, specific value
- Voice adaptation: Can be more direct and benefit-focused than other platforms
Meta (Facebook/Instagram) Ads
- Primary text: 125 chars visible (up to 1000 total)
- Headline: 40 chars recommended
- Description: 30 chars
- Must include: hook in first line, emotional resonance, clear CTA
- Voice adaptation: More conversational, storytelling allowed
X (Twitter) Ads
- 280 chars for organic, promoted tweets
- Must include: concise hook, hashtags optional
- Voice adaptation: Punchy, opinionated, personality-forward
LinkedIn Ads
- Intro text: 150 chars visible
- Headline: 70 chars
- Must include: professional value, credibility signals
- Voice adaptation: More professional, but still human (not corporate)
- Subject line: 40-60 chars ideal
- Preview text: 40-100 chars
- Body: No hard limit but respect attention spans
- Must include: clear single CTA, personalization hooks
- Voice adaptation: Most intimate channel, voice can be strongest here
Step 2: Generate Copy
For each platform/format, produce:
Primary Variant (A)
The strongest version using:
- BrandScript messaging (hero/guide/plan/CTA framework)
- Brand voice at correct dimension scores
- Vocabulary from "use" list
- Zero words from "avoid" list
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.
- 11d ago First seen · 114 lines · 56 tokens per session scan A 98b632a2df6e
brand-ad-copy is a skill published in the GitHub repository jgerton/brand-toolkit (61 stars, last pushed 4mo ago), licensed MIT. It adds 56 tokens to every session and 926 once invoked, about $0.0003 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 2026-08-30.
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