From grimoire
Redesigns products, services, or business models to eliminate waste, keep materials in use, and regenerate natural systems using circular economy frameworks.
How this skill is triggered — by the user, by Claude, or both
Slash command
/grimoire:apply-circular-economy-principlesThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Redesign products, processes, and business models using circular economy frameworks to eliminate waste by design and decouple growth from resource consumption.
Redesign products, processes, and business models using circular economy frameworks to eliminate waste by design and decouple growth from resource consumption.
Adopted by: EU Circular Economy Action Plan (binding on 27 member states); Philips, Renault, Interface, IKEA, Unilever circular business programs; World Economic Forum Global Battery Alliance; ISO/TC 323 Circular Economy standards committee
Impact: Ellen MacArthur Foundation estimates circular economy could generate $4.5T in economic opportunity by 2030; companies adopting product-as-a-service models report 20–40% materials cost reduction; Renault's remanufacturing operation saves 80% of raw materials per unit
Why best: Linear "take-make-dispose" models externalize end-of-life costs and face regulatory phase-out (EU ESPR, US EPR laws); circular design eliminates these liabilities while creating new revenue streams and supply chain resilience.
Sources: Ellen MacArthur Foundation "Towards the Circular Economy Vol. 1–3" (2012–2014); European Commission "Circular Economy Action Plan" (2020); McDonough & Braungart "Cradle to Cradle: Remaking the Way We Make Things" (2002)
Map current material flows — Trace all inputs (virgin materials, energy, water) through production, use, and end-of-life using a material flow analysis (MFA). Quantify waste streams and value lost at each stage.
Apply waste hierarchy — Prioritize interventions in order: Refuse (eliminate unnecessary material), Reduce, Reuse, Repair, Remanufacture, Recycle, Recover energy. Only proceed to lower tiers when higher tiers are not feasible.
Differentiate biological and technical cycles — Biological materials (food, cotton, wood) should return to the biosphere via composting or anaerobic digestion. Technical materials (metals, plastics, electronics) should circulate in closed loops without contamination.
Apply Cradle to Cradle design criteria — For each material: assess Material Health (safe for humans and environment), Material Reutilization (designed for recovery), Renewable Energy use, Water Stewardship, and Social Fairness.
Identify inner-loop opportunities — Prioritize strategies that keep products and components at their highest value: maintenance → reuse → repair → refurbishment → remanufacturing → recycling (in that order per ReSOLVE framework).
Design for disassembly — Specify reversible fasteners, single-material components, clear material marking (ISO 11469 for plastics), and modular architecture that enables component recovery.
Develop reverse logistics — Design take-back, deposit-return, or collection systems. Map collection points, sortation, and reprocessing infrastructure. Assess economics per stream.
Evaluate business model shifts — Assess product-as-a-service (leasing, performance contracts), product life extension (repair services), and resource recovery models. Model revenue, cost, and customer experience.
Engage supply chain — Require material transparency from suppliers (chemical inventories, recycled content). Establish closed-loop supplier agreements for remanufactured components.
Set circular KPIs and track — Define and baseline: recycled content %, material recovery rate, product return rate, remanufactured units %, virgin material intensity. Report against targets annually.
npx claudepluginhub jeffreytse/grimoire --plugin grimoireApplies life cycle thinking (ISO 14040/44) to evaluate environmental impacts from raw material to end-of-life. Guides design, procurement, or policy decisions to reduce total impact.
Applies design thinking to problems of form, function, and fit. Routes to focused skills for user needs, design constraints, iteration, or simplicity.
Designs new product concepts via interactive questioning, producing specifications, feature matrices, BOM estimates, differentiation analysis, next steps, and optional concept renders or engineering drawings.