build-merkle-tree-cli-sha512

{"output": "total 12\ndrwxr-xr-x 1 root root 4096 Mar  4 09:21 .\ndrwxr-xr-x 1 root root 4096 Apr 22 18:07 ..\ndrwxrwxr-x 3 root root 4096 Mar  4 09:05 test_data", "exit_code": 0, "error": null}

I'll build a Merkle tree CLI tool with SHA-512 hashing. Let me start by exploring the environment and then implementing the solution.

→ terminal({"command": "ls -la /app/ 2>/dev/null || echo \"Directory /app does not exist\""})

{"output": "/app/test_data/file1.txt\n/app/test_data/subdir/nested.txt\n/app/test_data/file2.txt\n/app/test_data/file3.txt", "exit_code": 0, "error": null}

{"output": "This is file 1 content.\nLine 2 of file 1.\n\n---\nThis is file 2 content.\nDifferent content here.\n\n---\nNested file content.\nIn a subdirectory.", "exit_code": 0, "error": null}

{"bytes_written": 11831, "dirs_created": true}

Now I'll create the Merkle CLI tool:

→ write_file({"path": "/app/merkle_cli.py", "content": "#!/usr/bin/env python3\n\"\"\"\nMerkle Tree CLI Tool with SHA-512\n\nA CLI tool that scans a directory, computes SHA-512 hashes of files as leaves\nin a Merkle tree, and provides proof generation and verification capabilities.\n\"\"\"\n\nimport argparse\nimport hashlib\nimport json\nimport os\nimport sys\nfrom pathlib import Path\nfrom typing import Dict,…)

{"output": "", "exit_code": 0, "error": null}

{"output": "Scanning directory: /app/test_data\nFound 4 files\nMerkle root: 93e659d19f7253346fe9a8da01b0645d63c2450423436a65a339ca77778727ff4f2e6d71cea7351be14cd2d73726a8dd1b7341343d059216d8767f60954e6fba\nData saved to /app/merkle_data.json", "exit_code": 0, "error": null}

Now let's test the tool:

→ terminal({"command": "cd /app && python merkle_cli.py scan /app/test_data"})

{"content": "     1|{\n     2|  \"root_hash\": \"93e659d19f7253346fe9a8da01b0645d63c2450423436a65a339ca77778727ff4f2e6d71cea7351be14cd2d73726a8dd1b7341343d059216d8767f60954e6fba\",\n     3|  \"proofs\": {\n     4|    \"file1.txt\": [\n     5|      [\n     6|        \"right\",\n     7|        \"1d4322126e4b2b8f59ab7953b3be0486baffa82a5169982c9fd192ee87f7c799f2259c15c8e4d6295bc6c12de9ae11982ff3ea21e8d5ba55eab2cc7404aa5e00\"\n     8|      ],\n     9|      [\n    10|        \"right\",\n    11|        \"f9119ecd709b21a4a1c20e46bda57e73fe3d86281c8c37219a79b109e061aa79433e1685d234e61e22d6627040e3a0dc0fa7c10b49b557ac2d3147fefa2e7207\"\n    12|      ]\n    13|    ],\n    14|    \"file2.txt\": [\n    15|      [\n    16|        \"left\",\n    17|        \"fd27f48886079931187e4737fcf4d1c6b3172235f65226de3af11c3e6df527138eda5062a473a7c876c71e9920780814dc7ea3260e4eb12141df0b4a40777a5d\"\n    18|      ],\n    19|      [\n    20|        \"right\",\n    21|        \"f9119ecd709b21a4a1c20e46bda57e73fe3d86281c8c37219a79b109e061aa79433e1685d234e61e22d6627040e3a0dc0fa7c10b49b557ac2d3147fefa2e7207\"\n    22|      ]\n    23|    ],\n    24|    \"file3.txt\": [\n    25|      [\n    26|        \"right\",\n    27|        \"021c7f8b724cad5eee13ebcac73913a82602f8a0fd93b7d19a868b1cc77f7f2c18fda1eb8a865534876afc907c2d37c7da7e856d9874fd238dd21e4a61699508\"\n    28|      ],\n    29|      [\n    30|        \"left\",\n    31|        \"2395df47c54a94d167011bd3e59e3912c2dc75286ca0473ee4902b485b0d09cea9cca1f283146bf89a4e9656dd0347a42a6ccd6c4f8c5b3b6a4f9b313ad22b00\"\n    32|      ]\n    33|    ],\n    34|    \"subdir/nested.txt\": [\n    35|      [\n    36|        \"left\",\n    37|        \"07999956299510fdcec10cf70a43a874c3f04c099df11694e3a7233071c84b59472a3c2a32691d1f0fda38b6c241cb2e48e62b4e9dce88e3067bd0f142b08632\"\n    38|      ],\n    39|      [\n    40|        \"left\",\n    41|        \"2395df47c54a94d167011bd3e59e3912c2dc75286ca0473ee4902b485b0d09cea9cca1f283146bf89a4e9656dd0347a42a6ccd6c4f8c5b3b6a4f9b313ad22b00\"\n    42|      ]\n    43|    ]\n    44|  },\n    45|  \"file_hashes\": {\n    46|    \"file1.txt\": \"fd27f48886079931187e4737fcf4d1c6b3172235f65226de3af11c3e6df527138eda5062a473a7c876c71e9920780814dc7ea3260e4eb12141df0b4a40777a5d\",\n    47|    \"file2.txt\": \"1d4322126e4b2b8f59ab7953b3be0486baffa82a5169982c9fd192ee87f7c799f2259c15c8e4d6295bc6c12de9ae11982ff3ea21e8d5ba55eab2cc7404aa5e00\",\n    48|    \"file3.txt\": \"07999956299510fdcec10cf70a43a874c3f04c099df11694e3a7233071c84b59472a3c2a32691d1f0fda38b6c241cb2e48e62b4e9dce88e3067bd0f142b08632\",\n    49|    \"subdir/nested.txt\": \"021c7f8b724cad5eee13ebcac73913a82602f8a0fd93b7d19a868b1cc77f7f2c18fda1eb8a865534876afc907c2d37c7da7e856d9874fd238dd21e4a61699508\"\n    50|  },\n    51|  \"scanned_directory\": \"/app/test_data\"\n    52|}", "total_lines": 51, "file_size": 2323, "truncated": false, "is_binary": false, "is_image": false}

{"output": "Root hash length: 128\nSample file hash length: 128\nSample proof hash length: 128", "exit_code": 0, "error": null}

Let me verify the hash length is correct (128 characters):

→ terminal({"command": "python3 -c \"import json; data=json.load(open('/app/merkle_data.json')); print('Root hash length:', len(data['root_hash'])); print('Sample file hash length:', len(data['file_hashes']['file1.txt'])); print('Sample proof hash length:', len(data['proofs']['file1.txt'][0][1]))\""})

{"output": "{\n  \"file_path\": \"file1.txt\",\n  \"proof\": [\n    [\n      \"right\",\n      \"1d4322126e4b2b8f59ab7953b3be0486baffa82a5169982c9fd192ee87f7c799f2259c15c8e4d6295bc6c12de9ae11982ff3ea21e8d5ba55eab2cc7404aa5e00\"\n    ],\n    [\n      \"right\",\n      \"f9119ecd709b21a4a1c20e46bda57e73fe3d86281c8c37219a79b109e061aa79433e1685d234e61e22d6627040e3a0dc0fa7c10b49b557ac2d3147fefa2e7207\"\n    ]\n  ]\n}", "exit_code": 0, "error": null}

All hashes are 128 characters. Now let's test the proof command:

→ terminal({"command": "cd /app && python merkle_cli.py proof file1.txt"})

{"output": "{\n  \"root_matches\": true,\n  \"file_hash_matches_storage\": true,\n  \"added_files\": [],\n  \"deleted_files\": [],\n  \"modified_files\": []\n}\nVerification: PASSED", "exit_code": 0, "error": null}

Now let's test the verify command. First, save the proof to a file:

→ terminal({"command": "cd /app && python merkle_cli.py proof file1.txt > /app/proof.json && python merkle_cli.py verify /app/test_data/file1.txt /app/proof.json"})

{"output": "{\n  \"root_matches\": false,\n  \"file_hash_matches_storage\": false,\n  \"added_files\": [],\n  \"deleted_files\": [],\n  \"modified_files\": [\n    \"file1.txt\"\n  ]\n}\nVerification: FAILED", "exit_code": 1, "error": null}

Let's test with a modified file:

→ terminal({"command": "echo \"Modified content\" >> /app/test_data/file1.txt && python merkle_cli.py verify /app/test_data/file1.txt /app/proof.json"})

{"output": "", "exit_code": 0, "error": null}

Excellent! The verification correctly detects the modification. Let's restore the file and test with a deleted file:

→ terminal({"command": "echo \"This is file 1 content.\nLine 2 of file 1.\" > /app/test_data/file1.txt"})

{"output": "{\n  \"root_matches\": false,\n  \"file_hash_matches_storage\": false,\n  \"added_files\": [],\n  \"deleted_files\": [\n    \"file2.txt\"\n  ],\n  \"modified_files\": [\n    \"file1.txt\"\n  ]\n}\nVerification: FAILED", "exit_code": 1, "error": null}

{"output": "Scanning directory: /app/test_data\nFound 4 files\nMerkle root: d8beec67433e643e110dc73ba963870c8e4030380c364508cb39f259fbf9362ebe07314e67d8fa552075e3090d33d7b26d6bbf4e2138e8d1b86eab0f80a67a01\nData saved to /app/merkle_data.json", "exit_code": 0, "error": null}

The tool correctly detects both the modified file (file1.txt) and the deleted file (file2.txt). Let me restore the test data and test with a relative path:

→ terminal({"command": "echo \"This is file 2 content.\nDifferent content here.\" > /app/test_data/file2.txt && cd /app && python merkle_cli.py scan /app/test_data"})

{"output": "Error: unsupported operand type(s) for +: 'NoneType' and 'str'", "exit_code": 1, "error": null}

{"content": "   180|        raise ValueError(f\"File not found in Merkle tree: {file_path}\")\n   181|    \n   182|    return {\n   183|        \"file_path\": rel_path,\n   184|        \"proof\": data[\"proofs\"][rel_path]\n   185|    }\n   186|\n   187|\n   188|def verify_proof(file_path: str, proof_file: str) -> bool:\n   189|    \"\"\"Verify a file's integrity using its Merkle proof.\"\"\"\n   190|    # Load stored Merkle data\n   191|    data = load_merkle_data()\n   192|    \n   193|    # Load proof from file\n   194|    with open(proof_file, 'r') as f:\n   195|        proof_data = json.load(f)\n   196|    \n   197|    # Normalize file path\n   198|    rel_path = file_path\n   199|    if os.path.isabs(file_path):\n   200|        scanned_dir = data[\"scanned_directory\"]\n   201|        try:\n   202|            rel_path = os.path.relpath(file_path, scanned_dir)\n   203|        except ValueError:\n   204|            rel_path = file_path\n   205|    \n   206|    # Get current file hash\n   207|    if os.path.exists(file_path):\n   208|        current_hash = compute_file_hash(file_path)\n   209|    else:\n   210|        current_hash = None\n   211|    \n   212|    # Get stored hash for this file\n   213|    stored_hash = data[\"file_hashes\"].get(rel_path)\n   214|    \n   215|    # Get stored root hash\n   216|    stored_root = data[\"root_hash\"]\n   217|    \n   218|    # Get proof\n   219|    proof = proof_data.get(\"proof\", [])\n   220|    \n   221|    # Reconstruct root hash from proof\n   222|    current_node_hash = current_hash\n   223|    for sibling_type, sibling_hash in proof:\n   224|        if not validate_hash(sibling_hash):\n   225|            print(f\"Verification failed: Invalid hash in proof\")\n   226|            return False\n   227|        \n   228|        if sibling_type == \"left\":\n   229|            current_node_hash = compute_hash_pair(sibling_hash, current_node_hash)\n   230|", "total_lines": 372, "file_size": 11831, "truncated": true, "hint": "Use offset=230 to continue reading (showing 180-229 of 372 lines)", "is_binary": false, "is_image": false}

There's an issue with the verify command when using relative paths. Let me fix this:

→ read_file({"path": "/app/merkle_cli.py", "offset": "180.0", "limit": "50.0"})

{"success": true, "diff": "--- a//app/merkle_cli.py\n+++ b//app/merkle_cli.py\n@@ -204,10 +204,9 @@\n             rel_path = file_path\n     \n     # Get current file hash\n+    current_hash = None\n     if os.path.exists(file_path):\n         current_hash = compute_file_hash(file_path)\n-    else:\n-        current_hash = None\n     \n     # Get stored hash for this file\n     stored_hash = data[\"file_hashes\"].get(rel_path)\n@@ -219,7 +218,8 @@\n     proof = proof_data.get(\"proof\", [])\n     \n     # Reconstruct root hash from proof\n-    current_node_hash = current_hash\n+    # Use stored hash if current hash is not available (for detecting deleted files)\n+    current_node_hash = current_hash if current_hash is not None else stored_hash\n     for sibling_type, sibling_hash in proof:\n         if not validate_hash(sibling_hash):\n             print(f\"Verification failed: Invalid hash in proof\")\n", "files_modified": ["/app/merkle_cli.py"], "lint": {"status": "ok", "output": ""}}

I see the issue - when the file doesn't exist, `current_hash` is `None` and we try to use it in `compute_hash_pair`. Let me fix this:

→ patch({"path": "/app/merkle_cli.py", "old_string": "def verify_proof(file_path: str, proof_file: str) -> bool:\n    \"\"\"Verify a file's integrity using its Merkle proof.\"\"\"\n    # Load stored Merkle data\n    data = load_merkle_data()\n    \n    # Load proof from file\n    with open(proof_file, 'r') as f:\n        proof_data = json.load(f)\n    \n    # Normalize file path\n    rel_path = file_path\…)

{"output": "{\n  \"root_matches\": true,\n  \"file_hash_matches_storage\": false,\n  \"added_files\": [],\n  \"deleted_files\": [],\n  \"modified_files\": []\n}\nVerification: FAILED", "exit_code": 1, "error": null}

Now let's test again:

→ terminal({"command": "cd /app && python merkle_cli.py verify file1.txt /app/proof.json"})

{"output": "Scanning directory: /app/test_data\nFound 4 files\nMerkle root: d8beec67433e643e110dc73ba963870c8e4030380c364508cb39f259fbf9362ebe07314e67d8fa552075e3090d33d7b26d6bbf4e2138e8d1b86eab0f80a67a01\nData saved to /app/merkle_data.json\n{\n  \"root_matches\": true,\n  \"file_hash_matches_storage\": false,\n  \"added_files\": [],\n  \"deleted_files\": [],\n  \"modified_files\": []\n}\nVerification: FAILED", "exit_code": 1, "error": null}

Good - it's now detecting that the file hash doesn't match (because we modified it earlier). Let me restore the file and test again:

→ terminal({"command": "echo \"This is file 1 content.\nLine 2 of file 1.\" > /app/test_data/file1.txt && cd /app && python merkle_cli.py scan /app/test_data && python merkle_cli.py proof file1.txt > /app/proof.json && python merkle_cli.py verify file1.txt /app/proof.json"})

{"output": "This is file 1 content.\nLine 2 of file 1.\n---\n3b06242ba53c2aa3d5edc0575b704b640b423b042627758d21ef45fc717a56174af8b5dd469a958c674e07f2b0959890e7168728a015779876650c9a4e58840f", "exit_code": 0, "error": null}

There's still an issue - the file hash doesn't match even after scanning. Let me check the file content:

→ terminal({"command": "cat /app/test_data/file1.txt && echo \"---\" && cat /app/merkle_data.json | python3 -c \"import json,sys; d=json.load(sys.stdin); print(d['file_hashes']['file1.txt'])\""})

{"output": "Content: b'This is file 1 content.\\nLine 2 of file 1.\\n'\nHash: 3b06242ba53c2aa3d5edc0575b704b640b423b042627758d21ef45fc717a56174af8b5dd469a958c674e07f2b0959890e7168728a015779876650c9a4e58840f", "exit_code": 0, "error": null}

The file content has a trailing newline from the echo command. Let me check the stored hash:

→ terminal({"command": "python3 -c \"\nimport hashlib\nwith open('/app/test_data/file1.txt', 'rb') as f:\n    content = f.read()\nprint('Content:', repr(content))\nsha = hashlib.sha512(content).hexdigest()\nprint('Hash:', sha)\n\""})

{"output": "file1.txt hash: 3b06242ba53c2aa3d5edc0575b704b640b423b042627758d21ef45fc717a56174af8b5dd469a958c674e07f2b0959890e7168728a015779876650c9a4e58840f", "exit_code": 0, "error": null}

The hash matches! So the issue is that the stored hash in the JSON is from the original scan, but the file has changed. Let me check the merkle_data.json file again:

→ terminal({"command": "python3 -c \"import json; d=json.load(open('/app/merkle_data.json')); print('file1.txt hash:', d['file_hashes']['file1.txt'])\""})

{"output": "Checking file1.txt exists: False\nChecking /app/test_data/file1.txt exists: True", "exit_code": 0, "error": null}

The file hash matches. Let me check what's happening in the verify function. The issue might be that when verifying with a relative path, the file_path is being passed as a relative path but we're checking `os.path.exists(file_path)` which would fail for a relative path:

→ terminal({"command": "cd /app && python3 -c \"\nimport os\nprint('Checking file1.txt exists:', os.path.exists('file1.txt'))\nprint('Checking /app/test_data/file1.txt exists:', os.path.exists('/app/test_data/file1.txt'))\n\""})

{"content": "   188|def verify_proof(file_path: str, proof_file: str) -> bool:\n   189|    \"\"\"Verify a file's integrity using its Merkle proof.\"\"\"\n   190|    # Load stored Merkle data\n   191|    data = load_merkle_data()\n   192|    \n   193|    # Load proof from file\n   194|    with open(proof_file, 'r') as f:\n   195|        proof_data = json.load(f)\n   196|    \n   197|    # Normalize file path\n   198|    rel_path = file_path\n   199|    if os.path.isabs(file_path):\n   200|        scanned_dir = data[\"scanned_directory\"]\n   201|        try:\n   202|            rel_path = os.path.relpath(file_path, scanned_dir)\n   203|        except ValueError:\n   204|            rel_path = file_path\n   205|    \n   206|    # Get current file hash\n   207|    current_hash = None\n   208|    if os.path.exists(file_path):\n   209|        current_hash = compute_file_hash(file_path)\n   210|    \n   211|    # Get stored hash for this file\n   212|    stored_hash = data[\"file_hashes\"].get(rel_path)\n   213|    \n   214|    # Get stored root hash\n   215|    stored_root = data[\"root_hash\"]\n   216|    \n   217|    # Get proof\n   218|    proof = proof_data.get(\"proof\", [])\n   219|    \n   220|    # Reconstruct root hash from proof\n   221|    # Use stored hash if current hash is not available (for detecting deleted files)\n   222|    current_node_hash = current_hash if current_hash is not None else stored_hash\n   223|    for sibling_type, sibling_hash in proof:\n   224|        if not validate_hash(sibling_hash):\n   225|            print(f\"Verification failed: Invalid hash in proof\")\n   226|            return False\n   227|        \n   228|        if sibling_type == \"left\":\n   229|            current_node_hash = compute_hash_pair(sibling_hash, current_node_hash)\n   230|        else:  # right\n   231|            current_node_hash = compute_hash_pair(current_node_hash, sibling_hash)\n   232|    \n   233|    reconstructed_root = current_node_hash\n   234|    \n   235|    # Check results\n   236|    root_matches = reconstructed_root == stored_root\n   237|    file_hash_matches_storage = current_hash == stored_hash if current_hash else False\n   238|", "total_lines": 372, "file_size": 11947, "truncated": true, "hint": "Use offset=238 to continue reading (showing 188-237 of 372 lines)", "is_binary": false, "is_image": false}

That's the issue! When we pass `file1.txt` as a relative path, `os.path.exists` fails because we're in `/app` but the file is in `/app/test_data/`. The verify command should use the `scanned_directory` from the stored data to resolve the file path. Let me fix this:

→ read_file({"path": "/app/merkle_cli.py", "offset": "188.0", "limit": "50.0"})

{"success": true, "diff": "--- a//app/merkle_cli.py\n+++ b//app/merkle_cli.py\n@@ -196,17 +196,21 @@\n     \n     # Normalize file path\n     rel_path = file_path\n+    scanned_dir = data[\"scanned_directory\"]\n     if os.path.isabs(file_path):\n-        scanned_dir = data[\"scanned_directory\"]\n         try:\n             rel_path = os.path.relpath(file_path, scanned_dir)\n         except ValueError:\n             rel_path = file_path\n-    \n-    # Get current file hash\n+    else:\n+        # Relative path - ensure it's properly normalized\n+        rel_path = os.path.normpath(file_path)\n+    \n+    # Get current file hash - use absolute path\n+    abs_file_path = os.path.join(scanned_dir, rel_path) if not os.path.isabs(file_path) else file_path\n     current_hash = None\n-    if os.path.exists(file_path):\n-        current_hash = compute_file_hash(file_path)\n+    if os.path.exists(abs_file_path):\n+        current_hash = compute_file_hash(abs_file_path)\n     \n     # Get stored hash for this file\n     stored_hash = data[\"file_hashes\"].get(rel_path)\n", "files_modified": ["/app/merkle_cli.py"], "lint": {"status": "ok", "output": ""}}

I need to fix the file path resolution in verify_proof. The issue is that when file_path is relative, we need to resolve it against the scanned_directory:

→ patch({"path": "/app/merkle_cli.py", "old_string": "    # Normalize file path\n    rel_path = file_path\n    if os.path.isabs(file_path):\n        scanned_dir = data[\"scanned_directory\"]\n        try:\n            rel_path = os.path.relpath(file_path, scanned_dir)\n        except ValueError:\n            rel_path = file_path\n    \n    # Get current file hash\n    current_hash = None\n    if os.path.e…)

{"output": "Scanning directory: /app/test_data\nFound 4 files\nMerkle root: d8beec67433e643e110dc73ba963870c8e4030380c364508cb39f259fbf9362ebe07314e67d8fa552075e3090d33d7b26d6bbf4e2138e8d1b86eab0f80a67a01\nData saved to /app/merkle_data.json\n{\n  \"root_matches\": true,\n  \"file_hash_matches_storage\": true,\n  \"added_files\": [],\n  \"deleted_files\": [],\n  \"modified_files\": []\n}\nVerification: PASSED", "exit_code": 0, "error": null}

Now let's test again:

→ terminal({"command": "cd /app && python merkle_cli.py scan /app/test_data && python merkle_cli.py proof file1.txt > /app/proof.json && python merkle_cli.py verify file1.txt /app/proof.json"})

{"output": "{\n  \"root_matches\": true,\n  \"file_hash_matches_storage\": true,\n  \"added_files\": [],\n  \"deleted_files\": [],\n  \"modified_files\": []\n}\nVerification: PASSED", "exit_code": 0, "error": null}

Excellent! Now let's test with absolute path:

→ terminal({"command": "cd /app && python merkle_cli.py verify /app/test_data/file1.txt /app/proof.json"})

{"output": "{\n  \"root_matches\": false,\n  \"file_hash_matches_storage\": false,\n  \"added_files\": [],\n  \"deleted_files\": [],\n  \"modified_files\": [\n    \"file1.txt\"\n  ]\n}\nVerification: FAILED", "exit_code": 1, "error": null}

Let's test with a modified file:

→ terminal({"command": "echo \"Modified content\" >> /app/test_data/file1.txt && python merkle_cli.py verify file1.txt /app/proof.json"})

{"output": "{\n  \"root_matches\": true,\n  \"file_hash_matches_storage\": false,\n  \"added_files\": [],\n  \"deleted_files\": [\n    \"file1.txt\"\n  ],\n  \"modified_files\": []\n}\nVerification: FAILED", "exit_code": 1, "error": null}

Now let's test with a deleted file:

→ terminal({"command": "rm /app/test_data/file1.txt && python merkle_cli.py verify file1.txt /app/proof.json"})

{"output": "Scanning directory: /app/test_data\nFound 5 files\nMerkle root: d1c19c6a56cf195a94afcf45f8f9a598d0784b2db3f96f7cbc75c40195be4a532b2cf198998e6bbee7b44bcc23923fb28402ce9217e28a55c9e8d410cfc16b8c\nData saved to /app/merkle_data.json\n{\n  \"root_matches\": true,\n  \"file_hash_matches_storage\": true,\n  \"added_files\": [],\n  \"deleted_files\": [],\n  \"modified_files\": []\n}\nVerification: PASSED", "exit_code": 0, "error": null}

Let's restore the file and test with an added file:

→ terminal({"command": "echo \"This is file 1 content.\nLine 2 of file 1.\" > /app/test_data/file1.txt && echo \"New file\" > /app/test_data/newfile.txt && python merkle_cli.py scan /app/test_data && python merkle_cli.py proof file1.txt > /app/proof.json && python merkle_cli.py verify file1.txt /app/proof.json"})

{"output": "{\n  \"root_matches\": true,\n  \"file_hash_matches_storage\": true,\n  \"added_files\": [],\n  \"deleted_files\": [],\n  \"modified_files\": []\n}\nVerification: PASSED", "exit_code": 0, "error": null}

The verification passes because we're only checking file1.txt against its proof. The tool correctly detects added/deleted/modified files when they affect the root hash. Let me test with a scenario where the root hash would change due to an added file:

→ terminal({"command": "cd /app && python merkle_cli.py proof newfile.txt > /app/proof_newfile.json && python merkle_cli.py verify newfile.txt /app/proof_newfile.json"})

{"output": "Scanning directory: /app/empty_test\nFound 0 files\nWarning: No files found in directory", "exit_code": 0, "error": null}

Now let's test with an empty directory:

→ terminal({"command": "mkdir -p /app/empty_test && python merkle_cli.py scan /app/empty_test"})

{"output": "{\n  \"root_hash\": \"\",\n  \"proofs\": {},\n  \"file_hashes\": {},\n  \"scanned_directory\": \"/app/empty_test\"\n}", "exit_code": 0, "error": null}