diff --git a/cli/lrcli.js b/cli/lrcli.js
index 4066e50..879a76b 100644
--- a/cli/lrcli.js
+++ b/cli/lrcli.js
@@ -6,11 +6,13 @@ var parsed_args = parse(
         default: {
             h: false,
         },
+        stopEarly: true,
         boolean: [ "h" ],
         string: [],
         alias: {
             h: [ "help", "usage", "u" ]
         },
+        collect: [],
         negatable: [],
         // a function which is invoked with a command line parameter not defined
         // in the options configuration object. If the function returns false,
@@ -63,17 +65,73 @@ Actions and Action Options:
     console.log(usage)
 }
 
+let parsePluginActionArgs = (args, argdef) => {
+    
+    var plugin_args_config = {
+        boolean: [],
+        string: [],
+        alias: {},
+        collect: [],
+        negatable: [],
+        unknown: null,
+        default: {},
+        alias: {}
+    }
+    
+    for (const [argname, argconfig] of Object.entries(argdef)) {
+        if ( ("collect" in argconfig) && (argconfig.collect === true) ) {
+            plugin_args_config.collect.push(argname)
+        }
+        if ( ("string" in argconfig) && (argconfig.string === true) ) {
+            plugin_args_config.string.push(argname)
+        }
+        if ( ("boolean" in argconfig) && (argconfig.boolean === true) ) {
+            plugin_args_config.boolean.push(argname)
+        }
+        if ( ("negatable" in argconfig) && (argconfig.negatable === true) ) {
+            plugin_args_config.negatable.push(argname)
+        }
+        if ("default" in argconfig) {
+            plugin_args_config.default[argname] = argconfig.default
+        }
+    }
+    
+    var parsed = parse(args, plugin_args_config)
+    console.log(parsed)
+        
+    var result = []
+    for (const argname of Object.keys(argdef)) {
+        if (argname in parsed) {
+            result.push(parsed[argname])
+        }
+    }
+    
+    return result
+}
+
 // assuming:
 // - the first unknown argument is the name of the plugin
 // - plugins live in ../plugins/<plugin-name>/cli.js, relative to lrcli.js location
 // - only one plugin loaded per invocation, at least for now
+// 
+// we *always* pass arguments to plugins as arrays of strings,
+// even if we only got one value
 let plugin 
 if (parsed_args._.length > 0) {
     plugin = await import(`../plugins/${parsed_args._[0]}/cli.js`);
     if (parsed_args._.length > 1) {
+        
         let action = parsed_args._[1]
         if (action in plugin.actions) {
-            plugin.actions[action].run()
+            
+            var parsed_plugin_args = parsePluginActionArgs(
+                                        // removing the plugin name and the method name
+                                        parsed_args._.slice(2),
+                                        plugin.actions[action].arguments
+                                     )
+            
+            plugin.actions[action].run(...parsed_plugin_args)
+        
         } else {
             printpluginUsage(plugin)
         }
@@ -84,7 +142,4 @@ if (parsed_args._.length > 0) {
     printUsage()
 }
 
-
-
-console.log(parsed_args)
 console.log(new URL('', import.meta.url).toString().split('/').at(-1))
diff --git a/plugins/basic-integrity/cli.js b/plugins/basic-integrity/cli.js
index de0356a..559e1d7 100644
--- a/plugins/basic-integrity/cli.js
+++ b/plugins/basic-integrity/cli.js
@@ -9,6 +9,29 @@
  * https://deno.land/
  */
 
+let getFileIntegrity = async (path, algos) => {
+        
+    const file = await Deno.open(
+                                path,
+                                { read: true }
+                            );
+    const fileInfo = await file.stat();
+    console.log(fileInfo)
+    if (fileInfo.isFile) {
+        const decoder = new TextDecoder();
+        for await (const chunk of file.readable) {
+            console.log(decoder.decode(chunk));
+        }
+    }
+    // putting this in a try-catch block as the file
+    // is apparently being auto-closed?
+    // https://issueantenna.com/repo/denoland/deno/issues/15442
+    try {
+        await file.close();
+    } catch (BadResource) {}
+}
+
+
 /**
  * get integrity data for specified urls, using specified algorithms
  * 
@@ -27,11 +50,11 @@ let getIntegrity = (paths, algos=["SHA-256"]) => {
     if (!Array.isArray(algos) || (algos.length == 0)) {
         throw new Error("Expected non-empty array of strings in the 'algos' argument.")
     }
-    
-    console.log('weeee')
-    console.log(paths)
-    console.log(algos)
-    
+
+    var result = paths.map(p => {
+                    return getFileIntegrity(p, algos)
+                })
+    console.log(result)
 }
 
 
@@ -44,8 +67,17 @@ const pluginActions = {
         run: getIntegrity,
         description: "calculate subresource integrity hashes for provided files",
         arguments: {
-            paths: "array of strings, paths to individual pieces of content",
-            algos: "array of SubtleCrypto.digest-compatible algorithm names nto use to calculate digests (default: \"SHA-256\")"
+            path: {
+                description: "array of strings, paths to individual pieces of content",
+                collect: true,
+                string: true
+            },
+            algorithm: {
+                description: "array of SubtleCrypto.digest-compatible algorithm names to use to calculate digests (default: \"SHA-256\")",
+                collect: true,
+                string: true,
+                default: "SHA-256"
+            }
         }
     }
 }