From grimoire
Designs logical argument structures for academic papers, policy briefs, or debates — developing a thesis, evidence, warrants, and rebuttals with internal validity and explicit counterargument handling.
How this skill is triggered — by the user, by Claude, or both
Slash command
/grimoire:design-argument-structureThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Design a logical argument structure for academic or policy writing — developing a clear thesis, supporting with appropriate evidence, articulating logical warrants, and addressing counterarguments — to produce a persuasive, well-reasoned written argument.
Design a logical argument structure for academic or policy writing — developing a clear thesis, supporting with appropriate evidence, articulating logical warrants, and addressing counterarguments — to produce a persuasive, well-reasoned written argument.
Adopted by: Stephen Toulmin's "The Uses of Argument" (1958) — Toulmin's model of argumentation (claim, data, warrant, backing, rebuttal, qualifier) is the standard framework in academic argumentation, debate coaching, and rhetoric instruction at universities worldwide. Booth, Colomb & Williams' "The Craft of Research" is the primary academic writing methodology text used at US universities. Graff & Birkenstein's "They Say / I Say" has been adopted at over 1,500 institutions and is the most widely used academic writing pedagogy text. Impact: Undisciplined arguments have three common failures: theses that are too broad to be argued; evidence without explicit logical connections to the claim; and omission of counterarguments that a reader will raise. Each failure undermines the argument's credibility with an academic audience. The Toulmin framework addresses all three by requiring explicit articulation of the claim, the supporting data, and — crucially — the warrant that connects the data to the claim.
The thesis is the claim the argument is designed to prove — the one sentence that the entire paper supports:
The thesis test:
Development process: start with an observation ("I notice that carbon capture receives a large share of climate funding") → find the complication ("but I also see research suggesting other strategies are more cost-effective") → form the thesis ("current investment in carbon capture is disproportionate to its cost-effectiveness relative to alternative emissions reduction strategies")
Not all evidence is equal; academic arguments use multiple evidence types:
Evidence arrangement strategies:
Evidence-claim connection: each piece of evidence requires an explicit connection to the claim. "The data shows X" followed by "Therefore, [thesis claim]" is insufficient without the warrant: "This matters because [the principle that connects X to the claim]."
The warrant is the logical principle that connects evidence to claim — the most frequently missing element in student arguments:
Testing warrants:
If the warrant is controversial: defend it before using it to support the main claim.
Booth, Colomb & Williams and Graff & Birkenstein both identify counterargument engagement as the mark of a mature academic argument. An argument that ignores counterarguments appears either unaware of them or afraid of them.
They Say / I Say structure (Graff & Birkenstein):
The steel-man principle: engage with the strongest version of the counterargument, not a strawman; academic audiences will recognize the difference; engaging with a weak version of the opposition implies you haven't encountered (or cannot address) the strong version.
Before drafting, map the argument's structure:
Thesis: [specific, arguable claim]
Supporting argument 1:
- Claim:
- Evidence:
- Warrant:
Supporting argument 2:
- Claim:
- Evidence:
- Warrant:
Supporting argument 3:
- Claim:
- Evidence:
- Warrant:
Counterargument: [strongest opposition]
- Their claim:
- Their evidence:
- My rebuttal:
- Why my thesis holds:
Conclusion: [thesis + implications]
This architecture map reveals structural weaknesses before they are embedded in prose:
npx claudepluginhub jeffreytse/grimoire --plugin grimoireSurfaces the warrant, audits evidence, and addresses counterarguments in persuasive writing. Use when an argument has holes or evidence doesn't connect to the claim.
Guides drafting and refining an arguable thesis for academic essays, research papers, or analytical writing. Based on Purdue OWL and Harvard Writing Center standards.
Generates argument structure scaffolds using Toulmin, PEEL, or CER frameworks for a given claim or question. Useful when teaching argumentative or analytical writing across any subject.