Why are my prompts leaking between environments?

“Prompt leakage” between environments usually means one of a few things: the app is accidentally reusing the same prompt/config, the wrong environment variables are being loaded, or cached state is being shared.

Common causes:

1. Shared config file or default fallback

   • Dev/staging/prod all point to the same .env, JSON/YAML config, or remote config key.
   • Your code falls back to a default prompt when the env-specific one is missing.

2. Environment variables not actually isolated

   • The deployment platform is injecting the same variable across environments.
   • A CI/CD step is overwriting env-specific values.

3. Caching

   • Prompt templates are cached in memory, Redis, CDN, browser storage, or at the app layer.
   • The cache key doesn’t include the environment name.

4. Singleton/global state

   • A prompt object is initialized once and reused across requests/environments.
   • In serverless or long-lived workers, globals can persist unexpectedly.

5. Build-time embedding

   • The prompt is bundled at build time, so one build artifact gets deployed everywhere.
   • Static assets or frontend code may contain the wrong environment’s prompt.

6. Telemetry/debug logs mixing values

   • It may only look like leakage because logs from multiple environments are aggregated.
   • Make sure you’re not reading prompts from centralized observability without environment tags.

7. Misconfigured secrets manager or feature flags

   • Same secret/flag key used across environments.
   • A remote prompt registry returns the same prompt because the environment namespace isn’t set.

How to debug quickly:

• Print the effective prompt source and environment name at runtime.
• Verify the resolved config path/key for each environment.
• Check cache keys include env/tenant/app version.
• Search for global/singleton prompt objects.
• Compare build artifacts between environments.
• Confirm your deployment tool is setting distinct variables per environment.

If you want, paste:

• your env setup,
• how prompts are loaded,
• and where they’re stored/cached,

and I can help pinpoint the most likely cause.