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 jacquescorbytuech/email-marketing-skill --skill email-marketinggit clone --depth 1 https://github.com/jacquescorbytuech/email-marketing-skillWrote 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/jacquescorbytuech/email-marketing-skill/email-marketing)<a href="https://agentmods.dev/skills/jacquescorbytuech/email-marketing-skill/email-marketing"><img src="https://agentmods.dev/badge/skills/jacquescorbytuech/email-marketing-skill/email-marketing/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/jacquescorbytuech/email-marketing-skill/email-marketing"><img src="https://agentmods.dev/badge/skills/jacquescorbytuech/email-marketing-skill/email-marketing.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 | $0.00149 | $0.03009 |
| Opus 5 | $0.00075 | $0.01504 |
| Sonnet 5 | $0.00030 | $0.00602 |
| Haiku 4.5 | $0.00015 | $0.00301 |
Grade A, and why
email-marketing 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 12d 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 — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Email Marketing Expert Skill
Core Knowledge Base: The CRM Open Knowledge Wiki
This skill is driven by the CRM Open Knowledge Wiki, an open-source practitioner knowledge base for email, lifecycle, and CRM marketing, published in the Open Knowledge Format (OKF) — a vendor-neutral specification for representing knowledge as a portable bundle of Markdown files with YAML frontmatter and link-driven navigation.
- Repository: https://github.com/jacquescorbytuech/crm-open-knowledge-wiki
- Browsable online: https://crmknowledgebase.com
The wiki is the canonical, most complete, and most current source. When answering any non-trivial question covered by this skill, fetch the relevant wiki page(s) first and ground your answer in them. Fetch pages as raw Markdown using this URL pattern:
https://raw.githubusercontent.com/jacquescorbytuech/crm-open-knowledge-wiki/main/<path>
For example: https://raw.githubusercontent.com/jacquescorbytuech/crm-open-knowledge-wiki/main/foundations/deliverability.md
Pages cross-link to related concepts; follow those links when a page references another concept you need. If a page fetch returns a 404, the wiki structure may have changed since this map was written — fetch that directory's index.md (e.g. foundations/index.md) for the current page list. If you cannot fetch remote content at all (no network access, fetch failures), fall back to the condensed local topic files listed under "Local Fallback Knowledge" below.
Wiki Page Map
Use this map to pick the right page(s) directly, without fetching index files first.
Principles (principles/) — foundational practitioner stances:
list-quality-over-size.md, metrics-are-directional.md, start-simple.md, goal-before-build.md, test-rigorously.md, respect-the-recipient.md, segmentation-has-costs.md, the-welcome-window.md, email-is-a-free-impression-channel.md, engagement-is-deliverability.md, device-channels-are-leased.md
Foundations (foundations/) — cross-channel operations:
customer-data-and-identity.md (identity resolution; CDP vs CRM vs warehouse), segmentation-and-data.md, segmentation-models.md (RFM, value tiers, propensity), database-health.md (list decay, contact lifecycle, sunsetting), audience-sync.md (activating CRM segments as ad-platform audiences), consent-and-preferences.md, list-building.md, lead-management.md (B2B scoring, MQL/SQL, sales handoff), lifecycle-mapping.md, copywriting.md, message-design-and-rendering.md, localisation.md, automation-and-sequences.md, offers-and-incentives.md, loyalty-and-retention-programs.md, campaign-planning-and-calendar.md, orchestration-and-frequency.md (cross-channel contact strategy, frequency capping), decisioning-and-personalisation.md (decisioning tools, vendor landscape, data prerequisites), personalisation-mechanics.md (templating; profile vs send-time vs open-time content), authentication.md, deliverability.md, sending-infrastructure.md (MTAs, SMTP, push token routing, webhooks), transactional-messaging.md, esp-selection.md, cold-email.md
What ships with it
11 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.
- 12d ago First seen · 139 lines · 149 tokens per session scan A a07679e5a1ae
email-marketing is a skill published in the GitHub repository jacquescorbytuech/email-marketing-skill (58 stars, last pushed 22d ago), licensed MIT. It adds 149 tokens to every session and 3,009 once invoked, about $0.0007 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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