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What a fallacy finder can and cannot tell you
Software that marks fallacies and propaganda techniques is useful, and easy to misread. Knowing what it does helps you use it well.
What it can do
It reads every sentence with the same attention, including the boring ones and the ones you agree with. It can point to wording that often carries a technique, such as an insult, a claimed consensus or an either-or framing, and quote the exact words so you can judge them in context. That makes it a good first pass, and a useful check on your own drafts, where we are all least critical.
What it cannot do
It cannot tell you whether a claim is true. A text can be free of fallacies and wrong about the facts, or full of loaded language and right. Checking facts is a separate job.
It cannot read intent. A phrase that looks like an appeal to emotion may be a fair description of something terrible. A quoted insult may belong to the person being reported on, not to the author.
It struggles with irony, jokes and context it was not given. A sarcastic reply can look like the position it mocks. A sentence pulled from a long debate can look like a straw man when the fuller version appears three paragraphs earlier.
Some checks are harder than others
Techniques that live in wording, like name-calling or loaded language, are easier to find than fallacies that live in the structure of an argument, like a false dilemma or begging the question. A trustworthy tool should say which checks it does well and where it falls short. All-Seeing AI publishes this on its accuracy page.
Using one well
Treat every finding as a question, not a verdict: is this wording doing the work an argument should do? Read the quoted words in their sentence. If the finding holds, ask what the text would need to say instead. If it does not, move on. The value is in the second look, not in the label.