Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/fsbtactic-code/marketing-brain-skillnpx agentmods add skills/fsbtactic-code/marketing-brain-skill/marketing-brainWrote 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/fsbtactic-code/marketing-brain-skill/marketing-brain)<a href="https://agentmods.dev/skills/fsbtactic-code/marketing-brain-skill/marketing-brain"><img src="https://agentmods.dev/badge/skills/fsbtactic-code/marketing-brain-skill/marketing-brain.svg" alt="Measured on agentmods" 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 | $0.00125 | $0.02254 |
| Opus 5 | $0.00063 | $0.01127 |
| Sonnet 5 | $0.00025 | $0.00451 |
| Haiku 4.5 | $0.00013 | $0.00225 |
Grade A, and why
marketing-brain 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 8d 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 — 136 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Marketing Brain
Turn curated evidence into decisions and production-ready marketing assets. Lead with the requested deliverable, not with a literature review.
Choose a mode
Use the explicit mode when the user names one. Otherwise infer the narrowest mode that fully covers the request.
| Mode and aliases | Use for | Load |
|---|---|---|
full, report, full-system |
Complete marketing system, launch, 30-60-90 plan, client-ready report | references/workflow-full-system.md |
audit |
Marketing, website, funnel, channel, tracking, and execution audit | references/workflow-audit.md |
landing, cro, landing-cro |
Landing diagnosis, information architecture, copy, and experiment plan | references/workflow-landing-cro.md |
competitors, competitive |
Direct, indirect, and aspirational competitor intelligence | references/workflow-competitors.md |
brand, voice, brand-voice |
Brand voice, lexicon, message hierarchy, and examples | references/workflow-brand-voice.md |
audience, icp, jtbd |
Segments, jobs, buying forces, research, and interview guide | references/workflow-audience.md |
emails, lifecycle, crm |
Welcome, nurture, launch, retention, win-back, and outreach sequences | references/workflow-email.md |
social, smm, content |
Social strategy, content pillars, calendar, posts, scripts, and learning loop | references/workflow-social.md |
ads, paid, paid-ads |
Paid campaign architecture, creative matrix, budget logic, and tests | references/workflow-paid-ads.md |
headlines, copy-bank |
Evidence-grounded headline, hook, CTA, and copy variants | references/workflow-headlines.md |
seo, geo, aeo |
Search, answer-engine visibility, content architecture, and measurement | SEO and GEO section of references/task-playbooks.md |
quick |
One small asset or mechanical improvement | Matching section of references/task-playbooks.md |
Examples:
$marketing-brain audit https://example.com
/marketing-brain social: сделай контент-систему на 30 дней для ...
Используй Marketing Brain в режиме audience для продукта ...
What ships with it
60 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.
- agents/openai.yaml 325 B
- assets/BUILD-MANIFEST.json 1.2 KB
- assets/cards.jsonl 21 KB
- assets/edges.jsonl 33 KB
- assets/knowledge.sqlite 136 KB
- assets/legacy-library.mbpack.parts/manifest.json 857 B
- assets/legacy-library.mbpack.parts/part-0000.bin 49152 KB
- assets/legacy-library.mbpack.parts/part-0001.bin 49152 KB
- assets/legacy-library.mbpack.parts/part-0002.bin 7929 KB
- assets/research-catalog.jsonl 280 KB
- assets/source-channels.jsonl 52 KB
- assets/sources.jsonl 10 KB
- assets/templates/content-calendar.md 1.3 KB
- assets/templates/evidence-ledger.md 1.3 KB
- assets/templates/experiment-backlog.md 1.2 KB
- assets/templates/issue-registry.md 1.2 KB
- assets/templates/marketing-brief.md 1.6 KB
- assets/templates/marketing-system-manifest.json 1.1 KB
- assets/wiki/cards/card_ad_effects_heterogeneous_by_firm.md 1.3 KB
- assets/wiki/cards/card_ad_roi_measurement_noise.md 1.4 KB
- assets/wiki/cards/card_choice_overload_context_dependent.md 1.4 KB
- assets/wiki/cards/card_cost_transparency_context.md 1.2 KB
- assets/wiki/cards/card_ftc_material_connection_disclosure.md 1.4 KB
- assets/wiki/cards/card_google_ads_experiment_hygiene.md 1.3 KB
- assets/wiki/cards/card_google_no_word_count_freshness_trick.md 1.2 KB
- assets/wiki/cards/card_google_people_first.md 1.2 KB
- assets/wiki/cards/card_google_who_how_why.md 1.1 KB
- assets/wiki/cards/card_incrementality_control_group.md 1.2 KB
- assets/wiki/cards/card_incrementality_precision_stratification.md 1.3 KB
- assets/wiki/cards/card_short_video_ad_spillover.md 1.3 KB
- assets/wiki/cards/card_telegram_ad_format.md 1.0 KB
- assets/wiki/cards/card_telegram_destination_quality.md 1.1 KB
- assets/wiki/cards/card_telegram_no_unsupported_absolutes.md 1.0 KB
- assets/wiki/cards/card_viral_content_arousal.md 1.3 KB
- assets/wiki/cards/card_youtube_audience_signals.md 1.2 KB
- assets/wiki/cards/card_youtube_publish_time.md 1.4 KB
- assets/wiki/cards/card_youtube_quality_over_frequency.md 1.3 KB
- assets/wiki/cards/card_youtube_search_ranking.md 1.1 KB
- assets/wiki/cards/card_youtube_tags_low_priority.md 1019 B
- assets/wiki/domains/consumer-behavior.md 2.2 KB
- assets/wiki/domains/content-editorial.md 5.1 KB
- assets/wiki/domains/creator-community.md 1009 B
- assets/wiki/domains/cro-funnels.md 2.3 KB
- assets/wiki/domains/law-policy-ethics.md 2.8 KB
- assets/wiki/domains/measurement-analytics.md 4.5 KB
- assets/wiki/domains/offer-messaging-copy.md 2.7 KB
- assets/wiki/domains/organic-smm.md 4.9 KB
- assets/wiki/domains/paid-acquisition.md 6.2 KB
- assets/wiki/domains/pricing-promotions.md 850 B
- assets/wiki/domains/seo-geo-ai-search.md 2.8 KB
- assets/wiki/domains/strategy-research.md 932 B
- assets/wiki/index.md 935 B
- assets/wiki/open-questions.md 159 B
- assets/wiki/pages.jsonl 18 KB
- references/research-catalog-policy.md 1.3 KB
- references/retrieval-policy.md 1.0 KB
- references/task-playbooks.md 5.1 KB
- references/taxonomy.md 1005 B
- references/third-party-notices.md 1.6 KB
- references/workflow-audience.md 8.4 KB
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.
- 8d ago First seen · 136 lines · 125 tokens per session scan A c6b67808ef64
marketing-brain is a skill published in the GitHub repository fsbtactic-code/marketing-brain-skill (5 stars, last pushed 1mo ago), licensed MIT. It adds 125 tokens to every session and 2,254 once invoked, about $0.0006 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 2026-08-31.
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