Module runtime_env 

Thread-safe runtime environment — replaces std::env::set_var. Thread-safe runtime environment for API keys and config.

Replaces unsafe { std::env::set_var() } with a concurrent map that is safe to read/write from any tokio task.

Read priority: runtime map → process environment.

Why not std::env::set_var?

set_var is unsafe in multi-threaded programs (undefined behavior in Rust 2024 edition). Since Koda uses tokio with multiple tasks (main REPL, background agents, version checker), we need a thread-safe alternative.

Functions

get

Get a runtime variable, falling back to std::env::var. Checks our runtime map first, then the real process environment.

is_set

Check if a runtime variable is set (in either runtime map or process env).

remove

Remove a key from the runtime map (does not touch process env).

set

Set a runtime environment variable (thread-safe).