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Tropes.fyi – Name and shame AI writing

Tropes.fyi – Name and shame AI writing

by ossa-ma·Feb 20, 2026·5 points·3 comments

AI Analysis

●●●BangerBig BrainEye Candy

Crowdsourced lexicon of AI tells with diffs, vetting tool, and system-prompt injection file.

Strengths
  • Precise taxonomy of AI tics (negative parallelism, em-dash addiction, anaphora abuse) with examples
  • Three-tier interface: read tropes, vet URLs, paste text for rewrites — meets users at different friction points
  • TROPES.md inversion: distribution as system prompt for LLMs to *avoid* patterns is clever
Weaknesses
  • Relies on pattern recognition; sophisticated AI can evolve past listed tells faster than taxonomy updates
  • No quantitative validation: accuracy/false-positive rates of the Vetter tool not disclosed
Category
Target Audience

Writers, editors, publishers, content quality gatekeepers, AI skeptics

Similar To

Bullshit detection tools · AI-generated text classifiers (GPTZero, Copyleaks)

Post Description

Show HN: tropes.fyi – Name and shame AI writing

Today I come to you on this beautiful Friday with a freshly hardthink-ed solution to a proliferous problem plaguing our world.

The loss of original voice. The blanket of blandness slowly suffocating centuries of writing.

Or to put it bluntly: AI writing is trash.

It is disrespectful to expect ME to read something YOU could not even be bothered to write (or likely even read). The lingering human connection that remained resilient on the internet - through years of SEO optimisation, propaganda bots, ads, regional firewalls, politics, censorship - is now being diluted even further.

Many of the posts I eagerly click on HN (especially sorting by new) are now disappointingly, ragingly, completely AI generated. This includes several that reach the front page on a daily basis. It's shameless. Unfortunately, many of you educated readers are oblivious to the tropes and tells or too eager to discuss the topic to notice.

To combat this (and because I'm petty) I (and ironically Claude) built a directory and several tools to name and shame these patterns. Both to educate those are not AI-literate and to spread awareness. NOT TO HARASS.

tropes.fyi is a catalogue of the recurring tics, structures and word choices that give away AI-generated writing. Each trope is documented with a name, description, real-world examples and the category it falls under (word choice, sentence structure, tone, formatting, composition).

There are currently 32 tropes. Some highlights:

- Negative Parallelism: "It's not X — it's Y." The SINGLE MOST COMMON AI writing tell. One per piece is fine. Ten in a blog post is insulting. AND I HAVE SEEN TEN IN A BLOG POST. - Tricolon Abuse: The compulsive rule of three. "Products impress people; platforms empower them. Products solve problems; platforms create worlds." - Em-Dash Addiction: A beautiful punctuation. Once the sign of a brilliant writer now too many of these is a red flag. I still use them, you won't break my spirit. - "Delve" and Friends: Perhaps the most infamous. "Delve" went from uncommon to appearing in a staggering percentage of AI text. See also: "leverage", "robust", "harness". - "Here's the Kicker": "But here's the thing:" — AI's favourite way to manufacture a revelation. See also: "Here's the catch:", "Here's where it gets interesting."

full directory: https://tropes.fyi/directory

ai;dr

Paste a link to any article. It will strip the AI fluff using our trope detection rules, then feed the skeleton to a lightweight llm which reverse-engineers it back to the prompt they likely* typed :D. 3000 words of slop → 30-word prompt + whatever unique insights (if any) survived the bloat.

try it: https://tropes.fyi/aidr

AI Vetter

Paste a URL, get a verdict. The AI Vetter fetches article content, runs rule-based pattern matching against all 32 tropes and returns a score on the scale:

Human → AI-assisted → Suspicious → Barely Legible → Pure AI Slop

try it: https://tropes.fyi/vetter

tropes.md - A single file you can drop into any AI assistant's system prompt so it avoids these patterns. Sorry for helping them become invisible, I'd just rather not see it.

Thinking about:

- Deslopify: Paste text in and get a diff-style breakdown of every phrase and structure that reads like AI, with suggested rewrites! Used for proactive cleanup. - Collecting more tropes from the wild (contributions welcome). - Model by model breakdown of common tropes, perhaps a benchmark for this sort of thing so that you can immediately pinpoint the culprit.

"You're a hypocrite I'm sure you use AI for writing code!" — AI generated code is fine, it's one computer (LLM) talking to another (compiler). How else do you think AI is so good at writing code? They're speaking the same language! But prose? That's from human to human, it's sacred and meant for other people. Using AI for that is deceitful.

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