Document to configure loglevel through env variables.

README.md

@@ -152,24 +152,37 @@ iex (iwr "https://github.com/AikidoSec/safe-chain/releases/latest/download/unins
 
 ## Logging
 
-You can control the output from Aikido Safe Chain using the `--safe-chain-logging` flag:
+You can control the output from Aikido Safe Chain using the `--safe-chain-logging` flag or the `SAFE_CHAIN_LOGGING` environment variable.
+
+### Configuration Options
+
+You can set the logging level through multiple sources (in order of priority):
+
+1. **CLI Argument** (highest priority):
 
    - `--safe-chain-logging=silent` - Suppresses all Aikido Safe Chain output except when malware is blocked. The package manager output is written to stdout as normal, and Safe Chain only writes a short message if it has blocked malware and causes the process to exit.
 
-  Example usage:
-
      ```shell
      npm install express --safe-chain-logging=silent
      ```
 
    - `--safe-chain-logging=verbose` - Enables detailed diagnostic output from Aikido Safe Chain. Useful for troubleshooting issues or understanding what Safe Chain is doing behind the scenes.
 
-  Example usage:
-
      ```shell
      npm install express --safe-chain-logging=verbose
      ```
 
+2. **Environment Variable**:
+
+   ```shell
+   export SAFE_CHAIN_LOGGING=verbose
+   npm install express
+   ```
+
+   Valid values: `silent`, `normal`, `verbose`
+
+   This is useful for setting a default logging level for all package manager commands in your terminal session or CI/CD environment.
+
 ## Minimum Package Age
 
 You can configure how long packages must exist before Safe Chain allows their installation. By default, packages must be at least 24 hours old before they can be installed through npm-based package managers.

docs/troubleshooting.md

@@ -48,12 +48,16 @@ These test packages are flagged as malware and should be blocked by Safe Chain.
 
 ### Logging Options
 
-Use logging flags to get more information:
+Use logging flags or environment variables to get more information:
 
 ```bash
 # Verbose mode - detailed diagnostic output for troubleshooting
 npm install express --safe-chain-logging=verbose
 
+# Or set it globally for all commands in your session
+export SAFE_CHAIN_LOGGING=verbose
+npm install express
+
 # Silent mode - suppress all output except malware blocking
 npm install express --safe-chain-logging=silent
 ```
@@ -277,11 +281,16 @@ rm -rf ~/.safe-chain
 
 ### Enable Verbose Logging
 
-Get detailed diagnostic output:
+Get detailed diagnostic output using a CLI flag or environment variable:
 
 ```bash
+# Using CLI flag
 npm install express --safe-chain-logging=verbose
 pip install requests --safe-chain-logging=verbose
+
+# Using environment variable (applies to all commands)
+export SAFE_CHAIN_LOGGING=verbose
+npm install express
 ```
 
 ### Report Issues