env-sanitization-rules

Rust environment sanitization enforces a single-shot snapshot of process variables before spawning child processes, treating the environment as attacker-controlled input to prevent secret leakage and unintended influence on subprocess execution.

Scrubbing secrets from Rust binaries is best handled through Tier-based variable handling that isolates sensitive keys, prohibits environment mutations, and ensures secrets are never read from the environment during init_tool flows.

Enforcing Command::env_clear in Rust requires applying sanitization rules across init_tool flows and any code that reads std::env::var or spawns child processes, ensuring a sanitized environment snapshot is captured before subprocess execution.

The process environment should be treated as attacker-controlled input in Rust because unsanitized variables can leak secrets and allow unintended influence on child processes, compromising deterministic execution and application security.

Yes, this environment sanitization approach works with umrs-core init flows by providing guidance for implementing and reviewing environment handling in umrs-core::init and related code, ensuring deterministic environments across init_tool snapshots.

Prohibiting environment mutations in Rust binaries limits dynamic runtime configuration changes, requiring all environment variables to be captured in a single-shot snapshot during initialization rather than modified during execution.