>_ fix archive
All fixes
Every published fix, newest first.
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Why the colors your AI coding agent wrote disappear the moment you build for production
AI coding agents love to build Tailwind class names with template literals like bg-${status}-500. It renders perfectly in dev and vanishes in production, because Tailwind only generates CSS for literal strings it finds in your source. Here is why, and the fix.
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Why your AI-built app builds fine locally and fails the second you deploy it
Your coding agent writes an import whose casing doesn't quite match the filename. macOS and Windows don't care, so it works everywhere you test it. Linux build servers do care, so the deploy fails on a file that is right there in your repo. Here's the actual mechanism and the fix.
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Why your Replit fix never reaches your live app's database
Replit gives every app a separate development and production database, and the Agent can only write to the development one. Here is why a fix that works perfectly in your workspace can leave your live app broken, and what actually moves a schema or data change to production.
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Your Supabase app might be wide open, and nothing in your own testing would show it
Supabase tables ship with Row Level Security off by default, and AI builders often generate a working table without a locked one. Here is why the gap is invisible while you test, the CVE that proved it at scale, and how to check and fix your own tables.
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Your AI agent didn't fix the bug: it fixed the test
A green test run and a fixed bug aren't the same thing. Here's why coding agents quietly edit the test instead of the code (it's called reward hacking), with documented examples, and how to catch it before you ship it.
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Why that npm package won't install in Bolt.new (it's not your code)
Bolt.new can't install packages like bcrypt, sqlite3, or canvas — not because of a bug, but because it runs Node inside a browser sandbox that blocks native addons. Here's why, how to spot it, and which pure-JS or hosted alternative to reach for instead.
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Why Claude Code missed code that's clearly in your file (it only read part of it)
Claude Code missing or duplicating code that's clearly in your file? It probably only read the first 2,000 lines. Here's how to tell, and how to point it at the right section.
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Why Claude Code isn't following your CLAUDE.md file (it's probably never loaded)
CLAUDE.md rule getting silently ignored? Here's why subdirectory files load lazily, CLAUDE.local.md only works at the project root, and how to check exactly what's loaded with /memory.
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Why Cursor Agent mode burns through your requests way faster than you expect
Cursor Agent mode isn't one request per prompt — it's several model calls per task, and the model you picked doesn't always stay picked. Here's why usage drains fast and how to stop it.
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Lovable changed something you didn't ask it to touch — here's why and how to recover
You asked Lovable to add one thing and it also changed your nav, your styles, or something else that was working fine. Here's why Lovable makes unintended changes and the three recovery paths depending on how far you've gotten since.
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Cursor's agent stopped using some of your MCP tools — here's the 40-tool ceiling nobody warns you about
Cursor caps MCP tools at 40 active across all servers combined — cross it and the agent silently loses access to some, or generation stops mid-task. Here's how to tell if that's your bug, plus two silent mcp.json failures (missing mcpServers key, missing -y on npx) that get mistaken for it.
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Your v0 component throws a Module-not-found error the second you paste it in — here's why
v0-generated code assumes shadcn/ui components already exist in your project, because shadcn isn't an npm package — it's source files copied in. Paste v0 output into a project that hasn't been through that setup and every @/components/ui import breaks. Here's the actual mechanism and the fix.
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Your Bolt.new app crashed after deploy — the environment variable gap nobody warns you about
Bolt.new apps that work perfectly in preview often crash the moment they're deployed, because environment variables set in Bolt's Secrets panel don't automatically transfer to Netlify or Vercel. Here's why, how to spot it, and the fix.
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You rolled back your Replit Agent checkpoint — why the app is still broken
A Replit Agent rollback restores your code, not your database, unless you explicitly opt in. Here's why checkpoint rollbacks leave code and data out of sync, how to tell that's your bug, and how to fix it without losing real data.
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Claude Code says your MCP server “Failed to connect” — it might not even be trying
"Failed to connect" isn't the only status claude mcp list can show. Here's why project-scoped MCP servers sit at Pending approval in a freshly cloned repo, the missing-type gotcha that silently drops remote servers, and how to tell which one you actually have.
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Your AI-built app might be leaking your API keys — here's how to actually check
AI coding agents routinely wire third-party API keys straight into client-side code. Here's the real distinction between public and secret keys, how to check what your app actually shipped, and how to fix and rotate what's exposed.
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Why files your Replit app writes disappear after you redeploy
Your Replit app writes a file and it works — then you redeploy and it's gone. Here's why every Replit deployment resets its filesystem on publish, and how to move storage somewhere that actually persists.
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Your AI coding agent just recommended a package that doesn't exist — here's why that's now a security risk
AI coding agents hallucinate package names about 1 in 5 times — and attackers are registering the exact fake names models keep repeating. Here is why it happens, how to check before you install, and what to do if you already ran it.
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Your Base44 app went blank after you changed a field — here's why
Base44 app rendering blank after you add, rename, or retype an entity field? Here's the schema/data mismatch behind it, how to confirm it, and how to fix it without redoing your data model.
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Your Claude Code hook isn't firing (or isn't blocking anything) — here's why
You wired up a PreToolUse or PostToolUse hook and it either never runs or runs but doesn't stop anything. Here's the exact-match-vs-regex matcher rule, the exit-code-2-not-1 gotcha, and the other silent failure points — plus how to check each one.
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Cursor's agent doesn't know about a file that's clearly in your repo? Here's why
You @-mention a file or ask Cursor about code that's right there in the explorer, and the agent acts like it doesn't exist — or worse, invents a plausible-sounding wrong answer. Here's why the index sees less of your repo than you do, and the one move that always works.
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Lovable preview is a blank white screen? Here's how to find the real error
Your Lovable app built fine but the preview is just blank white — no error, nothing. Here's why a React app renders nothing when it crashes on mount, and the one move that surfaces the actual error in under a minute.
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Why Claude Code stops following instructions you gave it earlier (it's not being stubborn)
Claude Code was doing exactly what you asked, then 20 minutes later it isn't anymore — and there is no error. Here is the actual mechanism (context compaction) and how to make instructions survive it.
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Cursor* ignoring your rules? Here's why (it's probably the .cursorrules migration)
Wrote a Cursor rule and it's just... not applying? Here's how Cursor's rules system actually resolves precedence, and the four most common ways a rule silently fails to load.
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The AI Fix Loop: why your coding agent makes bugs worse (and how to break the cycle)
Lovable, Replit, Cursor, Claude Code, Base44 — every AI coding tool falls into the same fix loop. Here's why it happens and the exact steps to break it.
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How to fix Lovable applying your edit to the wrong component
Lovable keeps editing the wrong file or component? Here's why it happens and the exact steps to scope your next prompt so the fix actually lands.
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Cursor silently reverted my changes — here's the real fix
Cursor applied your edit, you saw it land, and now it's gone with no undo. Here's the actual race condition behind Cursor's silent reverts and how to stop it.
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Base44 auth breaks after deploy: 3 causes and fixes
Login works fine in the Base44 preview, then breaks the moment you deploy? Here are the three most common causes — and how to tell which one is yours.
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Claude Code 529 errors and rate limits: how to tell which one you're hitting
Claude Code throwing a 529 or telling you you're rate limited? Here's how to diagnose which problem you actually have and what to do about each one.
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Why your Replit app breaks the moment you deploy
App looks done in the Replit workspace, then breaks the second you deploy? Here are the three most common causes — and how to tell which one is yours.
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Base44 built its own AI model (Base1) — what it means for your app
Base44 shipped a proprietary model called Base1 and a new Design Pack canvas. Here's what actually changed under the hood and what to expect the next time you prompt your app.
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Lovable app not saving data? The Supabase checklist
Lovable app not saving data or stuck in an auth loop? It's almost always one of three Supabase issues. Here's how to check each one and fix it.
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Base44 stuck on 'Thinking'? Here's how to get unstuck
Base44's agent hanging on 'Thinking' forever isn't random. Here's why it happens, the exact sequence to get unstuck, and how to stop losing credits to it.
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How to stop Replit Agent from rewriting code you didn't ask it to touch
Replit Agent changed files you never mentioned? Here's why long autonomous runs cause scope creep, and how to constrain the agent so a small fix stays small.
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