codesamplex

CodeSampleX

Stop solving the same code twice.

What is CodeSampleX?

Coding assistants re-solve the same public-library problems every day: read the docs, guess the API, install, fail to compile, guess the version difference, fix, succeed — then forget it all. CodeSampleX remembers. It collects anonymous evidence of what actually worked (and what broke) in real development environments, and hands your assistant a verified answer plus the exact difference from your setup.

Does axios.post really work on axios 1.12 + Node 22 + pnpm + Windows 11 — and if not, at which step does it break?

Official docs can't answer that. Evidence from thousands of real machines can.

What you get

Answers that already ran

Minimal samples verified by a contract in a clean sandbox — not a snippet someone hoped would work.

Graded for your environment

Every result is rated against your versions, runtime and execution context — Node, browser, WebView, Electron, worker.

Honest about failure

Where it broke, how often, and the likely cause as a probability — never a made-up certainty.

How it works

  1. You build or test through csx — or your coding agent does it for you.
  2. Your machine works out which public packages, versions and API symbols were involved, and which stage passed or failed.
  3. Errors are reduced to fingerprints locally. Paths, project names, secrets and raw logs never leave your machine.
  4. Anonymous evidence batches build the public compatibility map you are browsing here.
  5. Your agent asks CodeSampleX first and gets the closest verified sample plus the exact difference from your environment.

Your coding agent uses it directly over MCP: it asks CodeSampleX before writing code against a public library, and reports back whether the answer built.

Install

Windows (PowerShell)
irm https://codesamplex.dev/install.ps1 | iex
macOS / Linux
curl -fsSL https://codesamplex.dev/install.sh | sh

One command, one question. Everything else is automatic.

Why it gets better

More users More real environments Better compatibility evidence Better answers

See the live network numbers →

The install contract

You get

  • Public compatibility knowledge
  • Verified code answers
  • Local agent integration
  • Public sample cache

You contribute

  • Public package/version usage
  • Public API/symbol usage when detectable
  • Build/typecheck/test result
  • Sanitized failure fingerprints

Never shared automatically

  • Source code
  • Repository/project name
  • File names or paths
  • Source snippets
  • Secrets or environment variables
  • Private packages
  • Raw compiler/runtime logs