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Stress-test your arguments before your readers do.

The same engine that audits what you read, turned on what you write: structural audit, counterargument generation, citation checking, evidence verification, and the philosophical commitments your draft operates within - all before you publish.

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No account needed. Signing in is only for keeping your work - saved drafts, version history, and the engines that write their results onto them.

What the engine analyses

Structure

Argument skeleton

Every claim rendered as numbered premises with inference rules. Modus ponens, categorical syllogism, inductive generalisation - the formal structure of what you're actually arguing, stripped of rhetoric.

Critique

26 reasoning patterns + 8 rhetorical techniques

From Ad Hominem to Motte-and-Bailey, Selection Bias to Presupposition Smuggling. Each flagged with verbatim quotes, severity, and groundedness. Inline highlights show exactly where.

Opposition

Counterargument generation

The 2-3 strongest objections a thoughtful opponent would deploy that your draft fails to engage with. Each with its own Toulmin structure - claim, grounds, warrant.

Sources

Citation audit

Every cited URL fetched and checked against the claim it's cited for. Well-cited, weakly-cited, mismatched, or uncited - before your readers check for you.

Framework

Philosophical commitments

The ethical, epistemic, political, and methodological framework your argument operates within - made visible so you can decide whether to defend it, soften it, or replace it.

Evidence

Evidence-weighted likelihood

For empirical claims, we search 200M+ academic papers via Semantic Scholar and assess scientific consensus. Value claims are identified as such - they don't get percentages.

Who it serves

Students & academics

Thesis structure, evidence quality, counterargument handling, citation integrity. The question is "is your argument sound?" - not "did you write this?"

Journalists

Source verification, counterargument coverage, warrant exposure. Solo or multi-seat for newsrooms.

YouTubers & Substackers

Pre-publish audit for essay and analysis content. Revision tracking shows what improved between drafts.

Newsrooms

Multi-seat workspace, shared document library, API access. Get in touch →

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