code_env

code_env shows where an environment variable is defined (.env, docker-compose.yml, Dockerfile) and every place in the codebase that reads it (process.env.X, os.environ["X"]).

Usage

code_env(name="DATABASE_URL")
code_env(name="STRIPE_SECRET_KEY")
code_env()

Parameters

Parameter	Type	Default	Description
name	string	—	Environment variable name; omit to list all

Output

DATABASE_URL

  Defined in:
    .env.example         DATABASE_URL=postgres://localhost:5432/myapp
    docker-compose.yml   DATABASE_URL=postgres://db:5432/myapp

  Read in:
    src/db/client.ts:3   process.env.DATABASE_URL
    src/db/migrate.ts:7  process.env.DATABASE_URL

When to use

• Audit all environment variables used in a project
• Find every place a secret is accessed before rotating it
• Verify a new variable is defined everywhere it needs to be
• Onboarding — understand external configuration dependencies

Security note

code_env reads definitions from .env.example and config files — not from your actual .env (which is gitignored). It maps the structure of configuration, not the secret values.