diff --git a/README.md b/README.md
index fe2db55..c0761aa 100644
--- a/README.md
+++ b/README.md
@@ -48,10 +48,10 @@ Write your circuits under `circuits` folder; the circuit code itself should be t
 
 ```js
 multiplier3: {
-  file: 'multiplier',
-  template: 'Multiplier',
-  publicInputs: [],
-  templateInputs: [3],
+  template: 'Multiplier', // template to instantiate the main component
+  file: 'multiplier', // file to include for the template
+  publicInputs: [], // array of public inputs
+  templateInputs: [3], // template parameters, order is important
 }
 ```
 
@@ -69,7 +69,7 @@ There are some environment variables that the CLI can make use of, they are writ
 
 ## Testing
 
-To run tests:
+To run Mocha tests do the following:
 
 ```bash
 # run all tests
diff --git a/circuits/main/sudoku9.circom b/circuits/main/sudoku9.circom
index 8ea72f1..b2136ed 100644
--- a/circuits/main/sudoku9.circom
+++ b/circuits/main/sudoku9.circom
@@ -1,6 +1,6 @@
+// auto-generated by instantiate.js
 pragma circom 2.0.0;
 
 include "../../circuits/sudoku.circom";
 
-// Circuit for 3^2 x 3^2 sudoku
 component main {public[puzzle]} = Sudoku(3);
diff --git a/scripts/functions/clean.sh b/scripts/functions/clean.sh
index 8562aee..ade44df 100755
--- a/scripts/functions/clean.sh
+++ b/scripts/functions/clean.sh
@@ -3,8 +3,10 @@ clean() {
   echo -e "\n${CLIENV_COLOR_TITLE}=== Cleaning artifacts ===${CLIENV_COLOR_RESET}"
   local CIRCUIT=$1
   local CIRCUIT_DIR=./build/$CIRCUIT
+  local TARGET=./circuits/main/$CIRCUIT.circom
 
   rm -rf $CIRCUIT_DIR
+  rm -f $TARGET
 
-  echo -e "${CLIENV_COLOR_LOG}Deleted $CIRCUIT_DIR${CLIENV_COLOR_RESET}"
+  echo -e "${CLIENV_COLOR_LOG}Deleted $CIRCUIT_DIR and $TARGET${CLIENV_COLOR_RESET}"
 }
diff --git a/tests/multiplier.test.ts b/tests/multiplier.test.ts
index 2a50584..ea22b02 100644
--- a/tests/multiplier.test.ts
+++ b/tests/multiplier.test.ts
@@ -1,4 +1,4 @@
-import {compileCircuit} from '../utils';
+import {createWasmTester} from '../utils/wasmTester';
 import {ProofTester} from '../utils/proofTester';
 import type {CircuitSignals, FullProof} from '../types/circuit';
 import type {WasmTester} from '../types/wasmTester';
@@ -14,15 +14,12 @@ describe(CIRCUIT_NAME, () => {
     let circuit: WasmTester;
 
     before(async () => {
-      circuit = await compileCircuit('./circuits/main/' + CIRCUIT_NAME + '.circom');
-      await circuit.loadConstraints();
-      console.log('#constraints:', circuit.constraints!.length);
+      circuit = await createWasmTester('./circuits/main/' + CIRCUIT_NAME + '.circom', true);
     });
 
     it('should compute correctly', async () => {
       // compute witness
       const witness = await circuit.calculateWitness(INPUT, true);
-      console.log(witness);
 
       // witness should have valid constraints
       await circuit.checkConstraints(witness);
diff --git a/tests/sudoku.test.ts b/tests/sudoku.test.ts
index 915fdde..90ad69e 100644
--- a/tests/sudoku.test.ts
+++ b/tests/sudoku.test.ts
@@ -1,4 +1,4 @@
-import {compileCircuit} from '../utils';
+import {createWasmTester} from '../utils/wasmTester';
 import type {CircuitSignals, FullProof} from '../types/circuit';
 import type {WasmTester} from '../types/wasmTester';
 import {assert, expect} from 'chai';
@@ -13,14 +13,12 @@ describe(CIRCUIT_NAME, () => {
     let circuit: WasmTester;
 
     before(async () => {
-      circuit = await compileCircuit('./circuits/main/' + CIRCUIT_NAME + '.circom');
-      await circuit.loadConstraints();
-      console.log('#constraints:', circuit.constraints!.length);
+      circuit = await createWasmTester('./circuits/main/' + CIRCUIT_NAME + '.circom', true);
     });
 
     it('should compute correctly', async () => {
       // compute witness
-      const witness = await circuit.calculateWitness(inputfoo, true);
+      const witness = await circuit.calculateWitness(INPUT, true);
 
       // witness should have valid constraints
       await circuit.checkConstraints(witness);
diff --git a/types/wasmTester.ts b/types/wasmTester.ts
index 64bf0aa..f0c66cd 100644
--- a/types/wasmTester.ts
+++ b/types/wasmTester.ts
@@ -13,6 +13,7 @@ export type WasmTester = {
 
   /**
    * Cleanup directory, should probably be called upon test completion
+   * @deprecated this is buggy right now
    */
   release(): Promise<void>;
 
diff --git a/utils/index.ts b/utils/index.ts
deleted file mode 100644
index 5e0e1a1..0000000
--- a/utils/index.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-import type {WasmTester} from '../types/wasmTester';
-const wasm_tester = require('circom_tester').wasm;
-
-/**
- * Compiles and reutrns a circuit via `circom_tester`'s `wasm_tester`.
- * @param circuit name of circuit
- * @returns a `wasm_tester` object
- */
-export async function compileCircuit(path: string): Promise<WasmTester> {
-  return await wasm_tester(path, {
-    include: 'node_modules', // will link circomlib circuits
-  });
-}
diff --git a/utils/wasmTester.ts b/utils/wasmTester.ts
new file mode 100644
index 0000000..af82f4b
--- /dev/null
+++ b/utils/wasmTester.ts
@@ -0,0 +1,21 @@
+import type {WasmTester} from '../types/wasmTester';
+const wasm_tester = require('circom_tester').wasm;
+
+/**
+ * Compiles and reutrns a circuit via `circom_tester`'s `wasm_tester`.
+ * @param circuit name of circuit
+ * @param showNumConstraints print number of constraints, defualts to `false`
+ * @returns a `wasm_tester` object
+ */
+export async function createWasmTester(path: string, showNumConstraints: boolean = false): Promise<WasmTester> {
+  const circuit = await wasm_tester(path, {
+    include: 'node_modules', // will link circomlib circuits
+  });
+
+  if (showNumConstraints) {
+    await circuit.loadConstraints();
+    console.log('    number of constraints:', circuit.constraints!.length);
+  }
+
+  return circuit;
+}