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Report sustainability defensibly: run double materiality, build the GHG inventory, and word claims so they survive assurance.
Complete skill package instant downloadmerewyn-sustainability-esg-reporting-manager.md
Connect your AI once. This skill and 2,500+ more load when you ask, saving you prompts, tokens and time.
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Questions before you buy? A person answers, usually the same day: hello@kissmyskills.com
// the file itself
The first lines of the file your AI will read, exactly as delivered. Nothing rewritten for the page.
You are Merewyn, a Sustainability and ESG Reporting Manager who reconciles CSRD, the ESRS, GRI and IFRS S2, and builds a GHG inventory across all fifteen Scope 3 categories. You have been activated to write disclosure that survives assurance.
// what's inside
Companies facing a first mandatory sustainability disclosure with data scattered across spreadsheets.
// two ways to get it
$7 one payment, yours forever
$9/mo cancel anytime, or $59 a year
Subscribers can still buy single files and keep them after they cancel.
// ask your assistant
Go to kissmyskills.com/pages/for-ai-agents and set up the "Merewyn - ESG Reporting Manager AI Skill" skill (handle: merewyn-sustainability-esg-reporting-manager) for me
Paste it into Claude, ChatGPT, Claude Code, Cursor or Codex. Your AI walks you through connecting KissMySkills (about 3 minutes, 7-day free trial) and loads the skill. What your AI will read →
Drop Merewyn into Claude and get an ESG reporting manager who will withdraw a claim the evidence does not support, because a greenwashing finding costs more than the disclosure did.
Merewyn produces corporate sustainability reporting that survives assurance: the frameworks and how they genuinely differ across CSRD and ESRS, GRI, ISSB with IFRS S1 and S2, TCFD and SASB; double materiality assessment done properly; greenhouse gas accounting under the GHG Protocol across Scope 1, 2 and 3 with the emission-factor and data-quality problems stated rather than hidden; Scope 3 category screening and where estimates are genuinely weak; science-based targets and what committing obliges you to do; decarbonisation levers and marginal abatement cost; the data architecture and internal controls a reporting obligation requires; limited assurance and what an auditor will challenge, including that the planned escalation to reasonable assurance was dropped; greenwashing risk and defensible claim wording; and supply chain data collection.
What you get
How to install
Download the .skill package → open Claude → paste SKILL.md into your Project Instructions or system prompt → describe your requirement → Merewyn builds the answer. Includes a full worked example so you see exactly what you get.
After checkout, the download link lands in your inbox. Save the file anywhere on your device.
Claude, ChatGPT, Gemini, Grok, or Copilot - whichever one you already use.
Drop it into the system prompt, Project instructions, or custom instructions field.
Your AI is now configured as a specialist. Ask it anything inside its domain.
No technical knowledge required.
With Unlimited there is nothing to download. Connect your AI once, then just ask: "Load Merewyn from KissMySkills."
Report sustainability defensibly: run double materiality, build the GHG inventory, and word claims so they survive assurance. Load it once into Claude Projects and you get a configured Sustainability & ESG Reporting Manager without re-explaining context at the start of every session. Base every recommendation on the client's own numbers, state the assumption behind each one, and say plainly when a target is not reachable rather than building a plan that quietly assumes it is.
Download the .skill package (it contains SKILL.md), paste the contents into Claude Projects Instructions or your AI's system prompt, add your own context and start your first session. Works with Claude, ChatGPT, or any AI chat that accepts system prompts.
Works with Claude (recommended), ChatGPT, Gemini, Perplexity and Copilot, and any AI chat that accepts system prompts. Claude Projects gives the best results.
Without a skill file your AI starts every session as a general assistant. With Merewyn loaded it applies Sustainability & ESG Reporting Manager methodology from the first message, with consistent quality every time. Base every recommendation on the client's own numbers, state the assumption behind each one, and say plainly when a target is not reachable rather than building a plan that quietly assumes it is.