Classroom index | Originals and full outcomes
Child evidence 8803737b34cc4352b68cc9ae51b40f03
Historical child tool evidence. Commands are inert; read alongside the parent outcome.
SystemPromptEvent
{
"id": "80c82415-aa2f-4995-b7f0-7286aced0f29",
"timestamp": "2026-10-18T20:20:41.333316",
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"type": "text",
"text": "[REDACTED: ambient system/context, private source hash retained by instructor]"
},
"tools": [
{
"description": "Execute a shell command in the terminal within a persistent shell session.\n\n\n### Command Execution\n* One command at a time: You can only execute one shell command at a time.\n If you need to run multiple commands sequentially, use `&&` or `;`.\n* Persistent session: Environment variables, virtual environments, and\n working directory changes persist across commands.\n* Soft timeout: Commands pause for confirmation after 10 seconds without\n new output unless you provide a longer `timeout`.\n* Shell options: Do NOT use `set -e`, `set -eu`, or `set -euo pipefail`.\n The runtime may not support them reliably.\n\n### Long-running Commands\n* For commands that may run indefinitely, run them in the background and\n redirect output to a file, e.g. `python3 app.py > server.log 2>&1 &`.\n* For long-running commands, set the `timeout` parameter accordingly.\n* If a command returns exit code `-1`, it hit the soft timeout and is\n still running. With `is_input=true`, you can:\n - Send empty `command` to retrieve additional logs\n - Send text to STDIN of the running process\n - Send control commands like `C-c`, `C-d`, or `C-z`\n - Send navigation keys like `UP`, `DOWN`, `LEFT`, `RIGHT`, `TAB`,\n `ESC`, `BS`, `HOME`, `END`, `PGUP`, and `PGDN`\n - Send any `C-<letter>` Ctrl sequence such as `C-a`, `C-e`, or `C-l`\n\n### Best Practices\n* Verify a parent directory exists before creating files or directories.\n* Prefer absolute paths and avoid excessive use of `cd`.\n\n### Output Handling\n* Large output may be truncated before being returned.\n\n### Terminal Reset\n* Set `reset=true` to create a fresh terminal session if the current one\n becomes unresponsive.\n* Resetting the terminal clears environment variables, working directory\n changes, and running processes.",
"action_type": "TerminalAction",
"observation_type": "TerminalObservation",
"annotations": {
"title": "terminal",
"readOnlyHint": false,
"destructiveHint": true,
"idempotentHint": false,
"openWorldHint": true
},
"kind": "TerminalTool",
"title": "terminal"
},
{
"description": "Custom editing tool for viewing, creating and editing files in plain-text format\n* State is persistent across command calls and discussions with the user\n* If `path` is a text file, `view` displays the result of applying `cat -n`. If `path` is a directory, `view` lists non-hidden files and directories up to 2 levels deep\n* The `create` command cannot be used if the specified `path` already exists as a file\n* If a `command` generates a long output, it will be truncated and marked with `<response clipped>`\n* The `undo_edit` command will revert the last edit made to the file at `path`\n* This tool can be used for creating and editing files in plain-text format.\n\n\nBefore using this tool:\n1. Use the view tool to understand the file's contents and context\n2. Verify the directory path is correct (only applicable when creating new files):\n - Use the view tool to verify the parent directory exists and is the correct location\n\nWhen making edits:\n - Ensure the edit results in idiomatic, correct code\n - Do not leave the code in a broken state\n - Always use absolute file paths (starting with /)\n\nCRITICAL REQUIREMENTS FOR USING THIS TOOL:\n\n1. EXACT MATCHING: The `old_str` parameter must match EXACTLY one or more consecutive lines from the file, including all whitespace and indentation. The tool will fail if `old_str` matches multiple locations or doesn't match exactly with the file content.\n\n2. UNIQUENESS: The `old_str` must uniquely identify a single instance in the file:\n - Include sufficient context before and after the change point (3-5 lines recommended)\n - If not unique, the replacement will not be performed\n\n3. REPLACEMENT: The `new_str` parameter should contain the edited lines that replace the `old_str`. Both strings must be different.\n\nRemember: when making multiple file edits in a row to the same file, you should prefer to send all edits in a single message with multiple calls to this tool, rather than multiple messages with a single call each.\n\n\nYour current working directory is: /private/tmp/odsc-workshop6-v2/ledger-team-t1\nWhen exploring project structure, start with this directory instead of the root filesystem.",
"action_type": "FileEditorAction",
"observation_type": "FileEditorObservation",
"annotations": {
"title": "file_editor",
"readOnlyHint": false,
"destructiveHint": true,
"idempotentHint": false,
"openWorldHint": false
},
"kind": "FileEditorTool",
"title": "file_editor"
},
{
"description": "Signals the completion of the current task or conversation.\n\nUse this tool when:\n- You have successfully completed the user's requested task\n- You cannot proceed further due to technical limitations or missing information\n\nThe message should include:\n- A clear summary of actions taken and their results\n- Any next steps for the user\n- Explanation if you're unable to complete the task\n- Any follow-up questions if more information is needed\n",
"action_type": "FinishAction",
"observation_type": "FinishObservation",
"annotations": {
"title": "finish",
"readOnlyHint": true,
"destructiveHint": false,
"idempotentHint": true,
"openWorldHint": false
},
"kind": "FinishTool",
"title": "finish"
},
{
"description": "Use the tool to think about something. It will not obtain new information or make any changes to the repository, but just log the thought. Use it when complex reasoning or brainstorming is needed.\n\nCommon use cases:\n1. When exploring a repository and discovering the source of a bug, call this tool to brainstorm several unique ways of fixing the bug, and assess which change(s) are likely to be simplest and most effective.\n2. After receiving test results, use this tool to brainstorm ways to fix failing tests.\n3. When planning a complex refactoring, use this tool to outline different approaches and their tradeoffs.\n4. When designing a new feature, use this tool to think through architecture decisions and implementation details.\n5. When debugging a complex issue, use this tool to organize your thoughts and hypotheses.\n\nThe tool simply logs your thought process for better transparency and does not execute any code or make changes.",
"action_type": "ThinkAction",
"observation_type": "ThinkObservation",
"annotations": {
"readOnlyHint": true,
"destructiveHint": false,
"idempotentHint": true,
"openWorldHint": false
},
"kind": "ThinkTool",
"title": "think"
},
{
"description": "Invoke a skill by name.\n\nThis is the only supported way to invoke a skill listed in\n`<available_skills>`. Call it with the `<name>` shown in that block; the\nskill's full content is rendered (including any dynamic context) and\nreturned as the tool result.\n",
"action_type": "InvokeSkillAction",
"observation_type": "InvokeSkillObservation",
"annotations": {
"title": "invoke_skill",
"readOnlyHint": true,
"destructiveHint": false,
"idempotentHint": true,
"openWorldHint": false
},
"kind": "InvokeSkillTool",
"title": "invoke_skill"
},
{
"description": "Ask a saved vision-capable LLM profile to inspect an image from the latest user message and return a text answer.\n\nUse this when the current model cannot understand images, the latest user message includes an image, and visual details are needed to answer. The current model should pass the image_index shown in the user message and a specific question for the vision model. The cost of this vision model call is tracked in the same conversation stats.\n\nAvailable vision-capable profiles:\n- Claude-Opus-5.5\n- Cliff-Flash-Test\n- GPT5-6\n- KimiK3\n- OH-Opus-5\n- OH-Sonnet\n- Sonnnet\n- Workshop-DeepSeek\n- claude-fable-5\n- claude-opus-4-6\n- claude-opus-4-7\n- claude-opus-4-8\n- claude-sonnet-4-5\n- claude-sonnet-4-6\n- deepseek-v4-flash\n- gpt-5.4\n- gpt-5.5\n- gpt-5.6\n- gpt-5.6-sol\n- p02-cheap\n- p02-cheap-copy\n- p02-frontier\n- p02-mid",
"action_type": "VisionInspectAction",
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"annotations": {
"readOnlyHint": true,
"destructiveHint": false,
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"openWorldHint": true
},
"kind": "VisionInspectTool",
"title": "inspect_image_with_vision"
}
],
"dynamic_context": {
"type": "text",
"text": "[REDACTED: ambient system/context, private source hash retained by instructor]",
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},
"kind": "SystemPromptEvent"
}You
Workspace: /private/tmp/odsc-workshop6-v2/ledger-team-t1
README.md there is the complete acceptance contract. Your job: implement ONLY the file codec.py (functions `encode(fields)` and `decode(line)`). Do NOT edit reducer.py or test_ledger.py, and do NOT create any new files (no scratch files, no probes on disk). Use `PYTHONDONTWRITEBYTECODE=1` in all shell commands. Do not run git commands, do not install anything, no network.
Contract (verbatim from README):
"Implement codec.py encode(fields) and decode(line), reducer.py summarize(lines). fields is a list of strings, length >=1. Encode joins fields with | and escapes backslash as \\ and pipe as \|. decode reverses this, preserves empty and Unicode fields, and raises ValueError for a trailing backslash or an escape other than backslash or pipe. Empty line decodes to ['']. ..."
Therefore the codec.py interface you must provide:
- encode(fields: list[str]) -> str: join fields with '|'; within each field escape backslash as `\\` and pipe as `\|`. Escaping must be left-to-right so that backslashes produced by earlier escapes are not re-escaped (e.g. a raw field `\|` must encode to exactly the 4 chars `\\\|`, i.e. backslash backslash backslash pipe, and round-trip back to `\|`).
- decode(line: str) -> list[str]: exact inverse of encode. Split on unescaped `|`. Preserve empty fields and all Unicode characters exactly. An empty line decodes to `['']`. Raise ValueError on a trailing backslash (backslash as the last char of line) and on any escape sequence other than `\\` or `\|` (e.g. `\x`). Be case-sensitive and exact; no stripping of whitespace/newlines inside decode.
- Both functions must handle strings only. Keep them dependency-free (stdlib only).
Verification (mandatory): verify with in-memory Python probes ONLY (e.g. `python3 -c '...'` or a heredoc piped to python3, no file left behind). Cover at minimum:
1. encode(["a","b"]) == "a|b"
2. encode(["a|b","c\\d"]) == correct escaped form and decode round-trips to the exact original list.
3. decode("a|b") == ["a","b"]; decode("") == [""]; decode("|") == ["",""]; decode("||") == ["","",""].
4. Round-trip (decode(encode(F)) == F) for: unicode fields ("héllo|wörld", "日本語", emoji), fields containing backslash and pipe in various orders, empty fields, single field [""], field that is "\" and field that is "|".
5. decode("abc\\") raises ValueError (trailing backslash); decode("a\\xb") raises ValueError (invalid escape); decode("a\\|b") == ["a|b"]; decode("a\\\\b") == ["a\\b"].
6. encode(["\u2603"]) (snowman) == "\\u2603"? No — check it is the literal snowman character back in decode; i.e. Unicode passes through untouched, only backslash and pipe are special in encode.
Report back concisely:
- The exact interface signatures you implemented.
- The list of probes (input -> expected -> observed) and pass/fail for each, including the ValueError cases.
- Any assumptions or edge-case decisions.
Keep the report under ~600 words. Do not describe making any changes to files other than codec.py.Full event evidence
{
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"timestamp": "2026-10-18T20:20:41.335317",
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"llm_message": {
"role": "user",
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{
"cache_prompt": false,
"type": "text",
"text": "Workspace: /private/tmp/odsc-workshop6-v2/ledger-team-t1\n\nREADME.md there is the complete acceptance contract. Your job: implement ONLY the file codec.py (functions `encode(fields)` and `decode(line)`). Do NOT edit reducer.py or test_ledger.py, and do NOT create any new files (no scratch files, no probes on disk). Use `PYTHONDONTWRITEBYTECODE=1` in all shell commands. Do not run git commands, do not install anything, no network.\n\nContract (verbatim from README):\n\"Implement codec.py encode(fields) and decode(line), reducer.py summarize(lines). fields is a list of strings, length >=1. Encode joins fields with | and escapes backslash as \\\\ and pipe as \\|. decode reverses this, preserves empty and Unicode fields, and raises ValueError for a trailing backslash or an escape other than backslash or pipe. Empty line decodes to ['']. ...\"\n\nTherefore the codec.py interface you must provide:\n- encode(fields: list[str]) -> str: join fields with '|'; within each field escape backslash as `\\\\` and pipe as `\\|`. Escaping must be left-to-right so that backslashes produced by earlier escapes are not re-escaped (e.g. a raw field `\\|` must encode to exactly the 4 chars `\\\\\\|`, i.e. backslash backslash backslash pipe, and round-trip back to `\\|`).\n- decode(line: str) -> list[str]: exact inverse of encode. Split on unescaped `|`. Preserve empty fields and all Unicode characters exactly. An empty line decodes to `['']`. Raise ValueError on a trailing backslash (backslash as the last char of line) and on any escape sequence other than `\\\\` or `\\|` (e.g. `\\x`). Be case-sensitive and exact; no stripping of whitespace/newlines inside decode.\n- Both functions must handle strings only. Keep them dependency-free (stdlib only).\n\nVerification (mandatory): verify with in-memory Python probes ONLY (e.g. `python3 -c '...'` or a heredoc piped to python3, no file left behind). Cover at minimum:\n1. encode([\"a\",\"b\"]) == \"a|b\"\n2. encode([\"a|b\",\"c\\\\d\"]) == correct escaped form and decode round-trips to the exact original list.\n3. decode(\"a|b\") == [\"a\",\"b\"]; decode(\"\") == [\"\"]; decode(\"|\") == [\"\",\"\"]; decode(\"||\") == [\"\",\"\",\"\"].\n4. Round-trip (decode(encode(F)) == F) for: unicode fields (\"héllo|wörld\", \"日本語\", emoji), fields containing backslash and pipe in various orders, empty fields, single field [\"\"], field that is \"\\\" and field that is \"|\".\n5. decode(\"abc\\\\\") raises ValueError (trailing backslash); decode(\"a\\\\xb\") raises ValueError (invalid escape); decode(\"a\\\\|b\") == [\"a|b\"]; decode(\"a\\\\\\\\b\") == [\"a\\\\b\"].\n6. encode([\"\\u2603\"]) (snowman) == \"\\\\u2603\"? No — check it is the literal snowman character back in decode; i.e. Unicode passes through untouched, only backslash and pipe are special in encode.\n\nReport back concisely:\n- The exact interface signatures you implemented.\n- The list of probes (input -> expected -> observed) and pass/fail for each, including the ValueError cases.\n- Any assumptions or edge-case decisions.\nKeep the report under ~600 words. Do not describe making any changes to files other than codec.py."
}
],
"thinking_blocks": []
},
"activated_skills": [],
"extended_content": [],
"kind": "MessageEvent"
}Tool request: terminal
{
"command": "ls -la /private/tmp/odsc-workshop6-v2/ledger-team-t1",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
}Full event evidence
{
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"timestamp": "2026-10-18T20:20:44.436680",
"source": "agent",
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"thought": [],
"reasoning_content": null,
"thinking_blocks": [],
"action": {
"command": "ls -la /private/tmp/odsc-workshop6-v2/ledger-team-t1",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
},
"tool_name": "terminal",
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"name": "terminal",
"arguments": "{\"command\": \"ls -la /private/tmp/odsc-workshop6-v2/ledger-team-t1\", \"security_risk\": \"LOW\", \"summary\": \"List workspace directory contents\"}",
"origin": "completion"
},
"llm_response_id": "gen-1792372841-z4SCB43v1ZOlAMCeO9E0",
"security_risk": "UNKNOWN",
"summary": "List workspace directory contents",
"kind": "ActionEvent"
}Tool request: file_editor
{
"command": "view",
"path": "/private/tmp/odsc-workshop6-v2/ledger-team-t1/README.md",
"kind": "FileEditorAction"
}Full event evidence
{
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"timestamp": "2026-10-18T20:20:44.440836",
"source": "agent",
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"thought": [],
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"action": {
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"name": "file_editor",
"arguments": "{\"command\": \"view\", \"path\": \"/private/tmp/odsc-workshop6-v2/ledger-team-t1/README.md\"}",
"origin": "completion"
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"llm_response_id": "gen-1792372841-z4SCB43v1ZOlAMCeO9E0",
"security_risk": "UNKNOWN",
"summary": "file_editor: {\"command\": \"view\", \"path\": \"/private/tmp/odsc-workshop6-v2/ledger-team-t1/README.md\"}",
"kind": "ActionEvent"
}Tool result: terminal
total 32
drwxr-xr-x@ 7 instructor.shah wheel 224 Oct 18 20:16 .
drwxr-xr-x@ 6 instructor.shah wheel 192 Oct 18 20:16 ..
drwxr-xr-x@ 9 instructor.shah wheel 288 Oct 18 20:16 .git
-rw-r--r--@ 1 instructor.shah wheel 1112 Oct 18 20:16 README.md
-rw-r--r--@ 1 instructor.shah wheel 92 Oct 18 20:16 codec.py
-rw-r--r--@ 1 instructor.shah wheel 74 Oct 18 20:16 reducer.py
-rw-r--r--@ 1 instructor.shah wheel 95 Oct 18 20:16 test_ledger.py
Full event evidence
{
"id": "af0c95f0-d180-46e4-bc72-c121307617bd",
"timestamp": "2026-10-18T20:20:45.047305",
"source": "environment",
"parent_id": "6ff642e0-7566-44ad-942b-c45388279d9d",
"tool_name": "terminal",
"tool_call_id": "call_755d8642aa364bb49621648a",
"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "total 32\ndrwxr-xr-x@ 7 instructor.shah wheel 224 Oct 18 20:16 .\ndrwxr-xr-x@ 6 instructor.shah wheel 192 Oct 18 20:16 ..\ndrwxr-xr-x@ 9 instructor.shah wheel 288 Oct 18 20:16 .git\n-rw-r--r--@ 1 instructor.shah wheel 1112 Oct 18 20:16 README.md\n-rw-r--r--@ 1 instructor.shah wheel 92 Oct 18 20:16 codec.py\n-rw-r--r--@ 1 instructor.shah wheel 74 Oct 18 20:16 reducer.py\n-rw-r--r--@ 1 instructor.shah wheel 95 Oct 18 20:16 test_ledger.py"
}
],
"is_error": false,
"command": "ls -la /private/tmp/odsc-workshop6-v2/ledger-team-t1",
"exit_code": 0,
"timeout": false,
"metadata": {
"exit_code": 0,
"pid": -1,
"username": "instructor",
"hostname": "workshop-host",
"working_dir": "/private/tmp/odsc-workshop6-v2/ledger-team-t1",
"py_interpreter_path": "/Users/instructor.shah/.cache/uv/archive-v0/cZpGatmgSZEYIeuAv16p4/bin/python",
"prefix": "",
"suffix": "\n[The command completed with exit code 0.]"
},
"full_output_save_dir": "/Users/instructor.shah/.openhands/agent-canvas/dev_conversations/6861ddb66ca44f0eba9f6c5729445fdc/subagents/8803737b34cc4352b68cc9ae51b40f03/observations",
"kind": "TerminalObservation"
},
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"kind": "ObservationEvent"
}Tool result: file_editor
Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/ledger-team-t1/README.md:
1 New implementation exercise; stubs deliberately incomplete. Implement codec.py encode(fields) and decode(line), reducer.py summarize(lines). fields is a list of strings, length >=1. Encode joins fields with | and escapes backslash as \\ and pipe as \|. decode reverses this, preserves empty and Unicode fields, and raises ValueError for a trailing backslash or an escape other than backslash or pipe. Empty line decodes to ['']. summarize consumes iterable encoded records [event_id, account, signed_integer_cents]. Each record has exactly 3 fields, cents matches optional minus sign followed by one or more ASCII digits (leading zeros allowed, + disallowed). Account and ID may be empty or contain escaped delimiters. Exact retransmissions (same decoded ID/account/integer cents) count once. Conflicting duplicate IDs raise ValueError. Malformed encoding, field count or cents raises ValueError. Return dict account -> summed integer cents, retaining zero totals; empty input -> {}. Use codec.decode in reducer. Do not mutate input. Only codec.py, reducer.py, test_ledger.py may change. No dependency installs.
2Full event evidence
{
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"timestamp": "2026-10-18T20:20:45.049683",
"source": "environment",
"parent_id": "af0c95f0-d180-46e4-bc72-c121307617bd",
"tool_name": "file_editor",
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"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/ledger-team-t1/README.md:\n 1\tNew implementation exercise; stubs deliberately incomplete. Implement codec.py encode(fields) and decode(line), reducer.py summarize(lines). fields is a list of strings, length >=1. Encode joins fields with | and escapes backslash as \\\\ and pipe as \\|. decode reverses this, preserves empty and Unicode fields, and raises ValueError for a trailing backslash or an escape other than backslash or pipe. Empty line decodes to ['']. summarize consumes iterable encoded records [event_id, account, signed_integer_cents]. Each record has exactly 3 fields, cents matches optional minus sign followed by one or more ASCII digits (leading zeros allowed, + disallowed). Account and ID may be empty or contain escaped delimiters. Exact retransmissions (same decoded ID/account/integer cents) count once. Conflicting duplicate IDs raise ValueError. Malformed encoding, field count or cents raises ValueError. Return dict account -> summed integer cents, retaining zero totals; empty input -> {}. Use codec.decode in reducer. Do not mutate input. Only codec.py, reducer.py, test_ledger.py may change. No dependency installs.\n 2\t\n"
}
],
"is_error": false,
"command": "view",
"path": "/private/tmp/odsc-workshop6-v2/ledger-team-t1/README.md",
"prev_exist": true,
"kind": "FileEditorObservation"
},
"action_id": "6ff642e0-7566-44ad-942b-c45388279d9d",
"extended_content": [],
"kind": "ObservationEvent"
}Tool request: file_editor
{
"command": "view",
"path": "/private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py",
"kind": "FileEditorAction"
}Full event evidence
{
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"timestamp": "2026-10-18T20:20:47.229424",
"source": "agent",
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"action": {
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"tool_call": {
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"arguments": "{\"command\": \"view\", \"path\": \"/private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py\"}",
"origin": "completion"
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"llm_response_id": "gen-1792372845-20ttAoTfGBaG5XJeRENg",
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"summary": "file_editor: {\"command\": \"view\", \"path\": \"/private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py\"}",
"kind": "ActionEvent"
}Tool request: file_editor
{
"command": "view",
"path": "/private/tmp/odsc-workshop6-v2/ledger-team-t1/reducer.py",
"kind": "FileEditorAction"
}Full event evidence
{
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"action": {
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"tool_call": {
"id": "call_9bd7f81b512d479a8c5113ae",
"name": "file_editor",
"arguments": "{\"command\": \"view\", \"path\": \"/private/tmp/odsc-workshop6-v2/ledger-team-t1/reducer.py\"}",
"origin": "completion"
},
"llm_response_id": "gen-1792372845-20ttAoTfGBaG5XJeRENg",
"security_risk": "UNKNOWN",
"summary": "file_editor: {\"command\": \"view\", \"path\": \"/private/tmp/odsc-workshop6-v2/ledger-team-t1/reducer.py\"}",
"kind": "ActionEvent"
}Tool request: file_editor
{
"command": "view",
"path": "/private/tmp/odsc-workshop6-v2/ledger-team-t1/test_ledger.py",
"kind": "FileEditorAction"
}Full event evidence
{
"id": "ac0622af-1228-4f86-95ac-1e9d3abc06e6",
"timestamp": "2026-10-18T20:20:47.235225",
"source": "agent",
"parent_id": "7f74b869-4239-4317-ae2e-d997565e1084",
"thought": [],
"thinking_blocks": [],
"action": {
"command": "view",
"path": "/private/tmp/odsc-workshop6-v2/ledger-team-t1/test_ledger.py",
"kind": "FileEditorAction"
},
"tool_name": "file_editor",
"tool_call_id": "call_9a404b49f35d41fe891a41a4",
"tool_call": {
"id": "call_9a404b49f35d41fe891a41a4",
"name": "file_editor",
"arguments": "{\"command\": \"view\", \"path\": \"/private/tmp/odsc-workshop6-v2/ledger-team-t1/test_ledger.py\"}",
"origin": "completion"
},
"llm_response_id": "gen-1792372845-20ttAoTfGBaG5XJeRENg",
"security_risk": "UNKNOWN",
"summary": "file_editor: {\"command\": \"view\", \"path\": \"/private/tmp/odsc-workshop6-v2/ledger-team-t1/test_ledger.py\"}",
"kind": "ActionEvent"
}Tool result: file_editor
Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py:
1 def encode(fields):
2 raise NotImplementedError
3 def decode(line):
4 raise NotImplementedError
5Full event evidence
{
"id": "1125748a-4f77-432b-b5f9-fc9e6e146eaf",
"timestamp": "2026-10-18T20:20:47.240184",
"source": "environment",
"parent_id": "ac0622af-1228-4f86-95ac-1e9d3abc06e6",
"tool_name": "file_editor",
"tool_call_id": "call_640aea44adc04094bcacf2c2",
"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py:\n 1\tdef encode(fields):\n 2\t raise NotImplementedError\n 3\tdef decode(line):\n 4\t raise NotImplementedError\n 5\t\n"
}
],
"is_error": false,
"command": "view",
"path": "/private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py",
"prev_exist": true,
"kind": "FileEditorObservation"
},
"action_id": "28a5d583-7443-46a6-8e9a-d27f348c18a6",
"extended_content": [],
"kind": "ObservationEvent"
}Tool result: file_editor
Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/ledger-team-t1/reducer.py:
1 from codec import decode
2 def summarize(lines):
3 raise NotImplementedError
4Full event evidence
{
"id": "8d42a0df-62fd-4e73-a958-200250fbb047",
"timestamp": "2026-10-18T20:20:47.241591",
"source": "environment",
"parent_id": "1125748a-4f77-432b-b5f9-fc9e6e146eaf",
"tool_name": "file_editor",
"tool_call_id": "call_9bd7f81b512d479a8c5113ae",
"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/ledger-team-t1/reducer.py:\n 1\tfrom codec import decode\n 2\tdef summarize(lines):\n 3\t raise NotImplementedError\n 4\t\n"
}
],
"is_error": false,
"command": "view",
"path": "/private/tmp/odsc-workshop6-v2/ledger-team-t1/reducer.py",
"prev_exist": true,
"kind": "FileEditorObservation"
},
"action_id": "7f74b869-4239-4317-ae2e-d997565e1084",
"extended_content": [],
"kind": "ObservationEvent"
}Tool result: file_editor
Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/ledger-team-t1/test_ledger.py:
1 import unittest
2 class Smoke(unittest.TestCase):
3 def test_import(self):
4 import codec,reducer
5Full event evidence
{
"id": "618df97b-ffa6-42e6-826c-a56eb3495abc",
"timestamp": "2026-10-18T20:20:47.242812",
"source": "environment",
"parent_id": "8d42a0df-62fd-4e73-a958-200250fbb047",
"tool_name": "file_editor",
"tool_call_id": "call_9a404b49f35d41fe891a41a4",
"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/ledger-team-t1/test_ledger.py:\n 1\timport unittest\n 2\tclass Smoke(unittest.TestCase):\n 3\t def test_import(self):\n 4\t import codec,reducer\n 5\t\n"
}
],
"is_error": false,
"command": "view",
"path": "/private/tmp/odsc-workshop6-v2/ledger-team-t1/test_ledger.py",
"prev_exist": true,
"kind": "FileEditorObservation"
},
"action_id": "ac0622af-1228-4f86-95ac-1e9d3abc06e6",
"extended_content": [],
"kind": "ObservationEvent"
}Tool request: file_editor
{
"command": "str_replace",
"path": "/private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py",
"old_str": "def encode(fields):\n raise NotImplementedError\ndef decode(line):\n raise NotImplementedError",
"new_str": "def encode(fields):\n return \"|\".join(\n field.replace(\"\\\\\", \"\\\\\\\\\").replace(\"|\", \"\\\\|\")\n for field in fields\n )\n\n\ndef decode(line):\n fields = []\n current = []\n i = 0\n n = len(line)\n while i < n:\n c = line[i]\n if c == \"|\":\n fields.append(\"\".join(current))\n current = []\n i += 1\n elif c == \"\\\\\":\n if i + 1 >= n:\n raise ValueError(\"trailing backslash\")\n nxt = line[i + 1]\n if nxt == \"\\\\\":\n current.append(\"\\\\\")\n i += 2\n elif nxt == \"|\":\n current.append(\"|\")\n i += 2\n else:\n raise ValueError(\"invalid escape\")\n else:\n current.append(c)\n i += 1\n fields.append(\"\".join(current))\n return fields",
"kind": "FileEditorAction"
}Full event evidence
{
"id": "4ace1ed6-3ad9-4e96-9f06-e60d9eb2b274",
"timestamp": "2026-10-18T20:21:02.250265",
"source": "agent",
"parent_id": "618df97b-ffa6-42e6-826c-a56eb3495abc",
"thought": [],
"reasoning_content": null,
"thinking_blocks": [],
"action": {
"command": "str_replace",
"path": "/private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py",
"old_str": "def encode(fields):\n raise NotImplementedError\ndef decode(line):\n raise NotImplementedError",
"new_str": "def encode(fields):\n return \"|\".join(\n field.replace(\"\\\\\", \"\\\\\\\\\").replace(\"|\", \"\\\\|\")\n for field in fields\n )\n\n\ndef decode(line):\n fields = []\n current = []\n i = 0\n n = len(line)\n while i < n:\n c = line[i]\n if c == \"|\":\n fields.append(\"\".join(current))\n current = []\n i += 1\n elif c == \"\\\\\":\n if i + 1 >= n:\n raise ValueError(\"trailing backslash\")\n nxt = line[i + 1]\n if nxt == \"\\\\\":\n current.append(\"\\\\\")\n i += 2\n elif nxt == \"|\":\n current.append(\"|\")\n i += 2\n else:\n raise ValueError(\"invalid escape\")\n else:\n current.append(c)\n i += 1\n fields.append(\"\".join(current))\n return fields",
"kind": "FileEditorAction"
},
"tool_name": "file_editor",
"tool_call_id": "call_0f8db50566a743b1b0396bcf",
"tool_call": {
"id": "call_0f8db50566a743b1b0396bcf",
"name": "file_editor",
"arguments": "{\"command\": \"str_replace\", \"path\": \"/private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py\", \"old_str\": \"def encode(fields):\\n raise NotImplementedError\\ndef decode(line):\\n raise NotImplementedError\", \"new_str\": \"def encode(fields):\\n return \\\"|\\\".join(\\n field.replace(\\\"\\\\\\\\\\\", \\\"\\\\\\\\\\\\\\\\\\\").replace(\\\"|\\\", \\\"\\\\\\\\|\\\")\\n for field in fields\\n )\\n\\n\\ndef decode(line):\\n fields = []\\n current = []\\n i = 0\\n n = len(line)\\n while i < n:\\n c = line[i]\\n if c == \\\"|\\\":\\n fields.append(\\\"\\\".join(current))\\n current = []\\n i += 1\\n elif c == \\\"\\\\\\\\\\\":\\n if i + 1 >= n:\\n raise ValueError(\\\"trailing backslash\\\")\\n nxt = line[i + 1]\\n if nxt == \\\"\\\\\\\\\\\":\\n current.append(\\\"\\\\\\\\\\\")\\n i += 2\\n elif nxt == \\\"|\\\":\\n current.append(\\\"|\\\")\\n i += 2\\n else:\\n raise ValueError(\\\"invalid escape\\\")\\n else:\\n current.append(c)\\n i += 1\\n fields.append(\\\"\\\".join(current))\\n return fields\"}",
"origin": "completion"
},
"llm_response_id": "gen-1792372847-iTzDPeZyAuupD4pgIK2y",
"security_risk": "UNKNOWN",
"summary": "file_editor: {\"command\": \"str_replace\", \"path\": \"/private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py\", \"old_str\": \"def encode(fields):\\n raise NotImplementedError\\ndef decode(line):\\n raise NotImplementedError\", \"new_str\": \"def encode(fields):\\n return \\\"|\\\".join(\\n field.replace(\\\"\\\\\\\\\\\", \\\"\\\\\\\\\\\\\\\\\\\").replace(\\\"|\\\", \\\"\\\\\\\\|\\\")\\n for field in fields\\n )\\n\\n\\ndef decode(line):\\n fields = []\\n current = []\\n i = 0\\n n = len(line)\\n while i < n:\\n c = line[i]\\n if c == \\\"|\\\":\\n fields.append(\\\"\\\".join(current))\\n current = []\\n i += 1\\n elif c == \\\"\\\\\\\\\\\":\\n if i + 1 >= n:\\n raise ValueError(\\\"trailing backslash\\\")\\n nxt = line[i + 1]\\n if nxt == \\\"\\\\\\\\\\\":\\n current.append(\\\"\\\\\\\\\\\")\\n i += 2\\n elif nxt == \\\"|\\\":\\n current.append(\\\"|\\\")\\n i += 2\\n else:\\n raise ValueError(\\\"invalid escape\\\")\\n else:\\n current.append(c)\\n i += 1\\n fields.append(\\\"\\\".join(current))\\n return fields\"}",
"kind": "ActionEvent"
}Tool result: file_editor
The file /private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py has been edited. Here's the result of running `cat -n` on a snippet of /private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py:
1 def encode(fields):
2 return "|".join(
3 field.replace("\\", "\\\\").replace("|", "\\|")
4 for field in fields
5 )
6
7
8 def decode(line):
9 fields = []
10 current = []
11 i = 0
12 n = len(line)
13 while i < n:
14 c = line[i]
15 if c == "|":
16 fields.append("".join(current))
17 current = []
18 i += 1
19 elif c == "\\":
20 if i + 1 >= n:
21 raise ValueError("trailing backslash")
22 nxt = line[i + 1]
23 if nxt == "\\":
24 current.append("\\")
25 i += 2
26 elif nxt == "|":
27 current.append("|")
28 i += 2
29 else:
30 raise ValueError("invalid escape")
31 else:
32 current.append(c)
33 i += 1
34 fields.append("".join(current))
35 return fields
36
Review the changes and make sure they are as expected. Edit the file again if necessary.Full event evidence
{
"id": "3b635c31-db7f-4e58-b10c-568992a82d6e",
"timestamp": "2026-10-18T20:21:02.263494",
"source": "environment",
"parent_id": "4ace1ed6-3ad9-4e96-9f06-e60d9eb2b274",
"tool_name": "file_editor",
"tool_call_id": "call_0f8db50566a743b1b0396bcf",
"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "The file /private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py has been edited. Here's the result of running `cat -n` on a snippet of /private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py:\n 1\tdef encode(fields):\n 2\t return \"|\".join(\n 3\t field.replace(\"\\\\\", \"\\\\\\\\\").replace(\"|\", \"\\\\|\")\n 4\t for field in fields\n 5\t )\n 6\t\n 7\t\n 8\tdef decode(line):\n 9\t fields = []\n 10\t current = []\n 11\t i = 0\n 12\t n = len(line)\n 13\t while i < n:\n 14\t c = line[i]\n 15\t if c == \"|\":\n 16\t fields.append(\"\".join(current))\n 17\t current = []\n 18\t i += 1\n 19\t elif c == \"\\\\\":\n 20\t if i + 1 >= n:\n 21\t raise ValueError(\"trailing backslash\")\n 22\t nxt = line[i + 1]\n 23\t if nxt == \"\\\\\":\n 24\t current.append(\"\\\\\")\n 25\t i += 2\n 26\t elif nxt == \"|\":\n 27\t current.append(\"|\")\n 28\t i += 2\n 29\t else:\n 30\t raise ValueError(\"invalid escape\")\n 31\t else:\n 32\t current.append(c)\n 33\t i += 1\n 34\t fields.append(\"\".join(current))\n 35\t return fields\n 36\t\nReview the changes and make sure they are as expected. Edit the file again if necessary."
}
],
"is_error": false,
"command": "str_replace",
"path": "/private/tmp/odsc-workshop6-v2/ledger-team-t1/codec.py",
"prev_exist": true,
"old_content": "def encode(fields):\n raise NotImplementedError\ndef decode(line):\n raise NotImplementedError\n",
"new_content": "def encode(fields):\n return \"|\".join(\n field.replace(\"\\\\\", \"\\\\\\\\\").replace(\"|\", \"\\\\|\")\n for field in fields\n )\n\n\ndef decode(line):\n fields = []\n current = []\n i = 0\n n = len(line)\n while i < n:\n c = line[i]\n if c == \"|\":\n fields.append(\"\".join(current))\n current = []\n i += 1\n elif c == \"\\\\\":\n if i + 1 >= n:\n raise ValueError(\"trailing backslash\")\n nxt = line[i + 1]\n if nxt == \"\\\\\":\n current.append(\"\\\\\")\n i += 2\n elif nxt == \"|\":\n current.append(\"|\")\n i += 2\n else:\n raise ValueError(\"invalid escape\")\n else:\n current.append(c)\n i += 1\n fields.append(\"\".join(current))\n return fields\n",
"kind": "FileEditorObservation"
},
"action_id": "4ace1ed6-3ad9-4e96-9f06-e60d9eb2b274",
"extended_content": [],
"kind": "ObservationEvent"
}Tool request: terminal
{
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 - <<'EOF'\nfrom codec import encode, decode\n\ndef check(name, fn):\n try:\n got = fn()\n print(f\"PASS {name}: got {got!r}\")\n except ValueError as e:\n print(f\"PASS {name}: ValueError -> {e}\")\n except Exception as e:\n print(f\"FAIL {name}: raised {type(e).__name__}({e})\")\n\n# 1\ncheck(\"encode([a,b])\", lambda: encode([\"a\",\"b\"]) == \"a|b\")\n# 2\nprint(\"PASS\" if encode([\"a|b\", \"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\" else \"FAIL\", repr(encode([\"a|b\",\"c\\\\d\"])))\ncheck(\"roundtrip a|b/c\\\\d\", lambda: decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\n# 3\ncheck(\"decode a|b\", lambda: decode(\"a|b\") == [\"a\",\"b\"])\ncheck(\"decode empty\", lambda: decode(\"\") == [\"\"])\ncheck(\"decode |\", lambda: decode(\"|\") == [\"\",\"\"])\ncheck(\"decode ||\", lambda: decode(\"||\") == [\"\",\"\",\"\"])\n# 4 roundtrips\nfor F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\", \"\\\\\", \"|\", \"a\\\\|b\", \"x\\\\\\\\y\"], [\"\", \"\",\"\"], [\"\"], [\"\\\\\"], [\"|\"]):\n check(f\"roundtrip {F!r}\", lambda F=F: decode(encode(F)) == F)\n# 5\ncheck(\"decode abc\\\\ raises\", lambda: (\"should not reach\", decode(\"abc\\\\\") if False else (_ for _ in ()).throw(ValueError(\"sentinel\"))))\ntry:\n decode(\"abc\\\\\")\n print(\"FAIL trailing backslash: no exception\")\nexcept ValueError:\n print(\"PASS trailing backslash ValueError\")\ntry:\n decode(\"a\\\\xb\")\n print(\"FAIL invalid escape: no exception\")\nexcept ValueError:\n print(\"PASS invalid escape ValueError\")\ncheck(\"decode a\\\\|b\", lambda: decode(\"a\\\\|b\") == [\"a|b\"])\ncheck(\"decode a\\\\\\\\b\", lambda: decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\n# 6\ncheck(\"snowman passthrough\", lambda: decode(encode([\"\\u2603\"])) == [\"\\u2603\"] and \"\\u2603\" in encode([\"\\u2603\"]))\ncheck(\"encode snowman repr\", lambda: encode([\"\\u2603\"]) == \"\\u2603\")\nEOF",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
}Full event evidence
{
"id": "a774ee2a-93a9-400b-a154-004fe6846d59",
"timestamp": "2026-10-18T20:21:14.990890",
"source": "agent",
"parent_id": "3b635c31-db7f-4e58-b10c-568992a82d6e",
"thought": [],
"reasoning_content": null,
"thinking_blocks": [],
"action": {
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 - <<'EOF'\nfrom codec import encode, decode\n\ndef check(name, fn):\n try:\n got = fn()\n print(f\"PASS {name}: got {got!r}\")\n except ValueError as e:\n print(f\"PASS {name}: ValueError -> {e}\")\n except Exception as e:\n print(f\"FAIL {name}: raised {type(e).__name__}({e})\")\n\n# 1\ncheck(\"encode([a,b])\", lambda: encode([\"a\",\"b\"]) == \"a|b\")\n# 2\nprint(\"PASS\" if encode([\"a|b\", \"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\" else \"FAIL\", repr(encode([\"a|b\",\"c\\\\d\"])))\ncheck(\"roundtrip a|b/c\\\\d\", lambda: decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\n# 3\ncheck(\"decode a|b\", lambda: decode(\"a|b\") == [\"a\",\"b\"])\ncheck(\"decode empty\", lambda: decode(\"\") == [\"\"])\ncheck(\"decode |\", lambda: decode(\"|\") == [\"\",\"\"])\ncheck(\"decode ||\", lambda: decode(\"||\") == [\"\",\"\",\"\"])\n# 4 roundtrips\nfor F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\", \"\\\\\", \"|\", \"a\\\\|b\", \"x\\\\\\\\y\"], [\"\", \"\",\"\"], [\"\"], [\"\\\\\"], [\"|\"]):\n check(f\"roundtrip {F!r}\", lambda F=F: decode(encode(F)) == F)\n# 5\ncheck(\"decode abc\\\\ raises\", lambda: (\"should not reach\", decode(\"abc\\\\\") if False else (_ for _ in ()).throw(ValueError(\"sentinel\"))))\ntry:\n decode(\"abc\\\\\")\n print(\"FAIL trailing backslash: no exception\")\nexcept ValueError:\n print(\"PASS trailing backslash ValueError\")\ntry:\n decode(\"a\\\\xb\")\n print(\"FAIL invalid escape: no exception\")\nexcept ValueError:\n print(\"PASS invalid escape ValueError\")\ncheck(\"decode a\\\\|b\", lambda: decode(\"a\\\\|b\") == [\"a|b\"])\ncheck(\"decode a\\\\\\\\b\", lambda: decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\n# 6\ncheck(\"snowman passthrough\", lambda: decode(encode([\"\\u2603\"])) == [\"\\u2603\"] and \"\\u2603\" in encode([\"\\u2603\"]))\ncheck(\"encode snowman repr\", lambda: encode([\"\\u2603\"]) == \"\\u2603\")\nEOF",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
},
"tool_name": "terminal",
"tool_call_id": "call_2ed8913c3a42418f8692d88a",
"tool_call": {
"id": "call_2ed8913c3a42418f8692d88a",
"name": "terminal",
"arguments": "{\"command\": \"cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 - <<'EOF'\\nfrom codec import encode, decode\\n\\ndef check(name, fn):\\n try:\\n got = fn()\\n print(f\\\"PASS {name}: got {got!r}\\\")\\n except ValueError as e:\\n print(f\\\"PASS {name}: ValueError -> {e}\\\")\\n except Exception as e:\\n print(f\\\"FAIL {name}: raised {type(e).__name__}({e})\\\")\\n\\n# 1\\ncheck(\\\"encode([a,b])\\\", lambda: encode([\\\"a\\\",\\\"b\\\"]) == \\\"a|b\\\")\\n# 2\\nprint(\\\"PASS\\\" if encode([\\\"a|b\\\", \\\"c\\\\\\\\d\\\"]) == \\\"a\\\\\\\\|b|c\\\\\\\\\\\\\\\\d\\\" else \\\"FAIL\\\", repr(encode([\\\"a|b\\\",\\\"c\\\\\\\\d\\\"])))\\ncheck(\\\"roundtrip a|b/c\\\\\\\\d\\\", lambda: decode(encode([\\\"a|b\\\",\\\"c\\\\\\\\d\\\"])) == [\\\"a|b\\\",\\\"c\\\\\\\\d\\\"])\\n# 3\\ncheck(\\\"decode a|b\\\", lambda: decode(\\\"a|b\\\") == [\\\"a\\\",\\\"b\\\"])\\ncheck(\\\"decode empty\\\", lambda: decode(\\\"\\\") == [\\\"\\\"])\\ncheck(\\\"decode |\\\", lambda: decode(\\\"|\\\") == [\\\"\\\",\\\"\\\"])\\ncheck(\\\"decode ||\\\", lambda: decode(\\\"||\\\") == [\\\"\\\",\\\"\\\",\\\"\\\"])\\n# 4 roundtrips\\nfor F in ([\\\"h\\u00e9llo|w\\u00f6rld\\\"], [\\\"\\u65e5\\u672c\\u8a9e\\\"], [\\\"\\\\U0001F600\\\"], [\\\"a\\\\\\\\b\\\"], [\\\"a|b|\\\"], [\\\"\\\\\\\\|\\\", \\\"|\\\\\\\\\\\", \\\"\\\\\\\\\\\", \\\"|\\\", \\\"a\\\\\\\\|b\\\", \\\"x\\\\\\\\\\\\\\\\y\\\"], [\\\"\\\", \\\"\\\",\\\"\\\"], [\\\"\\\"], [\\\"\\\\\\\\\\\"], [\\\"|\\\"]):\\n check(f\\\"roundtrip {F!r}\\\", lambda F=F: decode(encode(F)) == F)\\n# 5\\ncheck(\\\"decode abc\\\\\\\\ raises\\\", lambda: (\\\"should not reach\\\", decode(\\\"abc\\\\\\\\\\\") if False else (_ for _ in ()).throw(ValueError(\\\"sentinel\\\"))))\\ntry:\\n decode(\\\"abc\\\\\\\\\\\")\\n print(\\\"FAIL trailing backslash: no exception\\\")\\nexcept ValueError:\\n print(\\\"PASS trailing backslash ValueError\\\")\\ntry:\\n decode(\\\"a\\\\\\\\xb\\\")\\n print(\\\"FAIL invalid escape: no exception\\\")\\nexcept ValueError:\\n print(\\\"PASS invalid escape ValueError\\\")\\ncheck(\\\"decode a\\\\\\\\|b\\\", lambda: decode(\\\"a\\\\\\\\|b\\\") == [\\\"a|b\\\"])\\ncheck(\\\"decode a\\\\\\\\\\\\\\\\b\\\", lambda: decode(\\\"a\\\\\\\\\\\\\\\\b\\\") == [\\\"a\\\\\\\\b\\\"])\\n# 6\\ncheck(\\\"snowman passthrough\\\", lambda: decode(encode([\\\"\\\\u2603\\\"])) == [\\\"\\\\u2603\\\"] and \\\"\\\\u2603\\\" in encode([\\\"\\\\u2603\\\"]))\\ncheck(\\\"encode snowman repr\\\", lambda: encode([\\\"\\\\u2603\\\"]) == \\\"\\\\u2603\\\")\\nEOF\", \"security_risk\": \"LOW\", \"summary\": \"Run in-memory verification probes against codec\"}",
"origin": "completion"
},
"llm_response_id": "gen-1792372862-3C8CefGblh4tXV06YLyf",
"security_risk": "UNKNOWN",
"summary": "Run in-memory verification probes against codec",
"kind": "ActionEvent"
}Tool result: terminal
cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 - <<'EOF'
from codec import encode, decode
def check(name, fn):
try:
got = fn()
print(f"PASS {name}: got {got!r}")
except ValueError as e:
print(f"PASS {name}: ValueError -> {e}")
except Exception as e:
print(f"FAIL {name}: raised {type(e).__name__}({e})")
# 1
check("encode([a,b])", lambda: encode(["a","b"]) == "a|b")
# 2
print("PASS" if encode(["a|b", "c\\d"]) == "a\\|b|c\\\\d" else "FAIL", repr(encode(["a|b","c\\d"])))
check("roundtrip a|b/c\\d", lambda: decode(encode(["a|b","c\\d"])) == ["a|b","c\\d"])
# 3
check("decode a|b", lambda: decode("a|b") == ["a","b"])
check("decode empty", lambda: decode("") == [""])
check("decode |", lambda: decode("|") == ["",""])
check("decode ||", lambda: decode("||") == ["","",""])
# 4 roundtrips
for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\", "\\", "|", "a\\|b", "x\\\\y"], ["", "",""], [""], ["\\"]for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|from codec import encode, decode
def check(name, fn):
try:
got = fn()
print(f"PASS {name}: got {got!r}")
except ValueError as e:
print(f"PASS {name}: ValueError -> {e}")
except Exception as e:
print(f"FAIL {name}: raised {type(e).__name__}({e})")
# 1
check("encode([a,b])", lambda: encode(["a","b"]) == "a|b")
# 2
print("PASS" if encode(["a|b", "c\\d"]) == "a\\|b|c\\\\d" else "FAIL", repr(encode(["a|b","c\\d"])))
check("roundtrip a|b/c\\d", lambda: decode(encode(["a|b","c\\d"])) == ["a|b","c\\d"])
# 3
check("decode a|b", lambda: decode("a|b") == ["a","b"])
check("decode empty", lambda: decode("") == [""])
check("decode |", lambda: decode("|") == ["",""])
check("decode ||", lambda: decode("||") == ["","",""])
# 4 roundtrips
for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\", "\\", "|", "a\\|b", "x\\\\y"], ["", "",""], [""], ["\\"]for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\",abc\\ raises",def check(name, fn):
try:
got = fn()
print(f"PASS {name}: got {got!r}")
except ValueError as e:
print(f"PASS {name}: ValueError -> {e}")
except Exception as e:
print(f"FAIL {name}: raised {type(e).__name__}({e})")
# 1
check("encode([a,b])", lambda: encode(["a","b"]) == "a|b")
# 2
print("PASS" if encode(["a|b", "c\\d"]) == "a\\|b|c\\\\d" else "FAIL", repr(encode(["a|b","c\\d"])))
check("roundtrip a|b/c\\d", lambda: decode(encode(["a|b","c\\d"])) == ["a|b","c\\d"])
# 3
check("decode a|b", lambda: decode("a|b") == ["a","b"])
check("decode empty", lambda: decode("") == [""])
check("decode |", lambda: decode("|") == ["",""])
check("decode ||", lambda: decode("||") == ["","",""])
# 4 roundtrips
for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\", "\\", "|", "a\\|b", "x\\\\y"], ["", "",""], [""], ["\\"]for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\",abc\\ raises", lambda: ("should not reach", decode("abc\\") if False else (_ for _ infor F in (["héllo|wörld except ValueError as e:
print(f"PASS {name}: ValueError -> {e}")
except Exception as e:
print(f"FAIL {name}: raised {type(e).__name__}({e})")
# 1
check("encode([a,b])", lambda: encode(["a","b"]) == "a|b")
# 2
print("PASS" if encode(["a|b", "c\\d"]) == "a\\|b|c\\\\d" else "FAIL", repr(encode(["a|b","c\\d"])))
check("roundtrip a|b/c\\d", lambda: decode(encode(["a|b","c\\d"])) == ["a|b","c\\d"])
# 3
check("decode a|b", lambda: decode("a|b") == ["a","b"])
check("decode empty", lambda: decode("") == [""])
check("decode |", lambda: decode("|") == ["",""])
check("decode ||", lambda: decode("||") == ["","",""])
# 4 roundtrips
for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\", "\\", "|", "a\\|b", "x\\\\y"], ["", "",""], [""], ["\\"]for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\",abc\\ raises", lambda: ("should not reach", decode("abc\\") if False else (_ for _ infor F in (["héllo|wörld"], ["日本語"
decode("abc\\")
print("FAIL trailing backslash: no exception")
except ValueError:
print("PASS trailing backslash ValueError")
try:
de# 1
check("encode([a,b])", lambda: encode(["a","b"]) == "a|b")
# 2
print("PASS" if encode(["a|b", "c\\d"]) == "a\\|b|c\\\\d" else "FAIL", repr(encode(["a|b","c\\d"])))
check("roundtrip a|b/c\\d", lambda: decode(encode(["a|b","c\\d"])) == ["a|b","c\\d"])
# 3
check("decode a|b", lambda: decode("a|b") == ["a","b"])
check("decode empty", lambda: decode("") == [""])
check("decode |", lambda: decode("|") == ["",""])
check("decode ||", lambda: decode("||") == ["","",""])
# 4 roundtrips
for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\", "\\", "|", "a\\|b", "x\\\\y"], ["", "",""], [""], ["\\"]for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\",abc\\ raises", lambda: ("should not reach", decode("abc\\") if False else (_ for _ infor F in (["héllo|wörld"], ["日本語"
decode("abc\\")
print("FAIL trailing backslash: no exception")
except ValueError:
print("PASS trailing backslash ValueError")
try:
decode("acheck("encode([a,b])", lambda: encode(["a","b"]) == "a|b")
# 2
print("PASS" if encode(["a|b", "c\\d"]) == "a\\|b|c\\\\d" else "FAIL", repr(encode(["a|b","c\\d"])))
check("roundtrip a|b/c\\d", lambda: decode(encode(["a|b","c\\d"])) == ["a|b","c\\d"])
# 3
check("decode a|b", lambda: decode("a|b") == ["a","b"])
check("decode empty", lambda: decode("") == [""])
check("decode |", lambda: decode("|") == ["",""])
check("decode ||", lambda: decode("||") == ["","",""])
# 4 roundtrips
for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\", "\\", "|", "a\\|b", "x\\\\y"], ["", "",""], [""], ["\\"]for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\",abc\\ raises", lambda: ("should not reach", decode("abc\\") if False else (_ for _ infor F in (["héllo|wörld"], ["日本語"
decode("abc\\")
print("FAIL trailing backslash: no exception")
except ValueError:
print("PASS trailing backslash ValueError")
try:
decode("a\\xb")
p nt("FAIL invalid escape: no exception")
except Vaprint("PASS" if encode(["a|b", "c\\d"]) == "a\\|b|c\\\\d" else "FAIL", repr(encode(["a|b","c\\d"])))
check("roundtrip a|b/c\\d", lambda: decode(encode(["a|b","c\\d"])) == ["a|b","c\\d"])
# 3
check("decode a|b", lambda: decode("a|b") == ["a","b"])
check("decode empty", lambda: decode("") == [""])
check("decode |", lambda: decode("|") == ["",""])
check("decode ||", lambda: decode("||") == ["","",""])
# 4 roundtrips
for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\", "\\", "|", "a\\|b", "x\\\\y"], ["", "",""], [""], ["\\"]for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\",abc\\ raises", lambda: ("should not reach", decode("abc\\") if False else (_ for _ infor F in (["héllo|wörld"], ["日本語"
decode("abc\\")
print("FAIL trailing backslash: no exception")
except ValueError:
print("PASS trailing backslash ValueError")
try:
decode("a\\xb")
p nt("FAIL invalid escape: no exception")
except ValueError:
print("PASS invalid escape ValueError")
check("decode a\\|b", lambda: decode("a\\|b") == ["a|b"])
check("decode a\\\\b", lambda: decode("a\\\\b") == ["a\\b"])
# 6
check("snowman passthrough", lambda: decode(encode(["\u2603"])) == ["\u2603"] and "\u2603" in encode(["\u2603"]))
check("encode snowman repr", lambda: encode(["\u2603"]) == "\u2603")
EOF
File "<stdin>", line 23
for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\", "\\", "|", "a\\|b", "x\\\\y"], ["", "",""], [""], ["\\"]for F in (["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"], ["\\|", "|\\",abc\\ raises", lambda: ("should not reach", decode("abc\\") if False else (_ for _ infor F in (["héllo|wörld"], ["日本語"
^^^
SyntaxError: invalid syntaxFull event evidence
{
"id": "6d0aa932-e487-4f61-8dfa-104859684043",
"timestamp": "2026-10-18T20:21:15.826645",
"source": "environment",
"parent_id": "a774ee2a-93a9-400b-a154-004fe6846d59",
"tool_name": "terminal",
"tool_call_id": "call_2ed8913c3a42418f8692d88a",
"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 - <<'EOF'\nfrom codec import encode, decode\n\ndef check(name, fn):\n try:\n got = fn()\n print(f\"PASS {name}: got {got!r}\")\n except ValueError as e:\n print(f\"PASS {name}: ValueError -> {e}\")\n except Exception as e:\n print(f\"FAIL {name}: raised {type(e).__name__}({e})\")\n\n# 1\ncheck(\"encode([a,b])\", lambda: encode([\"a\",\"b\"]) == \"a|b\")\n# 2\nprint(\"PASS\" if encode([\"a|b\", \"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\" else \"FAIL\", repr(encode([\"a|b\",\"c\\\\d\"])))\ncheck(\"roundtrip a|b/c\\\\d\", lambda: decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\n# 3\ncheck(\"decode a|b\", lambda: decode(\"a|b\") == [\"a\",\"b\"])\ncheck(\"decode empty\", lambda: decode(\"\") == [\"\"])\ncheck(\"decode |\", lambda: decode(\"|\") == [\"\",\"\"])\ncheck(\"decode ||\", lambda: decode(\"||\") == [\"\",\"\",\"\"])\n# 4 roundtrips\nfor F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\", \"\\\\\", \"|\", \"a\\\\|b\", \"x\\\\\\\\y\"], [\"\", \"\",\"\"], [\"\"], [\"\\\\\"]for F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|from codec import encode, decode\n\ndef check(name, fn):\n try:\n got = fn()\n print(f\"PASS {name}: got {got!r}\")\n except ValueError as e:\n print(f\"PASS {name}: ValueError -> {e}\")\n except Exception as e:\n print(f\"FAIL {name}: raised {type(e).__name__}({e})\")\n\n# 1\ncheck(\"encode([a,b])\", lambda: encode([\"a\",\"b\"]) == \"a|b\")\n# 2\nprint(\"PASS\" if encode([\"a|b\", \"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\" else \"FAIL\", repr(encode([\"a|b\",\"c\\\\d\"])))\ncheck(\"roundtrip a|b/c\\\\d\", lambda: decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\n# 3\ncheck(\"decode a|b\", lambda: decode(\"a|b\") == [\"a\",\"b\"])\ncheck(\"decode empty\", lambda: decode(\"\") == [\"\"])\ncheck(\"decode |\", lambda: decode(\"|\") == [\"\",\"\"])\ncheck(\"decode ||\", lambda: decode(\"||\") == [\"\",\"\",\"\"])\n# 4 roundtrips\nfor F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\", \"\\\\\", \"|\", \"a\\\\|b\", \"x\\\\\\\\y\"], [\"\", \"\",\"\"], [\"\"], [\"\\\\\"]for F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\",abc\\\\ raises\",def check(name, fn):\n try:\n got = fn()\n print(f\"PASS {name}: got {got!r}\")\n except ValueError as e:\n print(f\"PASS {name}: ValueError -> {e}\")\n except Exception as e:\n print(f\"FAIL {name}: raised {type(e).__name__}({e})\")\n\n# 1\ncheck(\"encode([a,b])\", lambda: encode([\"a\",\"b\"]) == \"a|b\")\n# 2\nprint(\"PASS\" if encode([\"a|b\", \"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\" else \"FAIL\", repr(encode([\"a|b\",\"c\\\\d\"])))\ncheck(\"roundtrip a|b/c\\\\d\", lambda: decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\n# 3\ncheck(\"decode a|b\", lambda: decode(\"a|b\") == [\"a\",\"b\"])\ncheck(\"decode empty\", lambda: decode(\"\") == [\"\"])\ncheck(\"decode |\", lambda: decode(\"|\") == [\"\",\"\"])\ncheck(\"decode ||\", lambda: decode(\"||\") == [\"\",\"\",\"\"])\n# 4 roundtrips\nfor F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\", \"\\\\\", \"|\", \"a\\\\|b\", \"x\\\\\\\\y\"], [\"\", \"\",\"\"], [\"\"], [\"\\\\\"]for F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\",abc\\\\ raises\", lambda: (\"should not reach\", decode(\"abc\\\\\") if False else (_ for _ infor F in ([\"héllo|wörld except ValueError as e:\n print(f\"PASS {name}: ValueError -> {e}\")\n except Exception as e:\n print(f\"FAIL {name}: raised {type(e).__name__}({e})\")\n\n# 1\ncheck(\"encode([a,b])\", lambda: encode([\"a\",\"b\"]) == \"a|b\")\n# 2\nprint(\"PASS\" if encode([\"a|b\", \"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\" else \"FAIL\", repr(encode([\"a|b\",\"c\\\\d\"])))\ncheck(\"roundtrip a|b/c\\\\d\", lambda: decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\n# 3\ncheck(\"decode a|b\", lambda: decode(\"a|b\") == [\"a\",\"b\"])\ncheck(\"decode empty\", lambda: decode(\"\") == [\"\"])\ncheck(\"decode |\", lambda: decode(\"|\") == [\"\",\"\"])\ncheck(\"decode ||\", lambda: decode(\"||\") == [\"\",\"\",\"\"])\n# 4 roundtrips\nfor F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\", \"\\\\\", \"|\", \"a\\\\|b\", \"x\\\\\\\\y\"], [\"\", \"\",\"\"], [\"\"], [\"\\\\\"]for F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\",abc\\\\ raises\", lambda: (\"should not reach\", decode(\"abc\\\\\") if False else (_ for _ infor F in ([\"héllo|wörld\"], [\"日本語\"\n decode(\"abc\\\\\")\n print(\"FAIL trailing backslash: no exception\")\nexcept ValueError:\n print(\"PASS trailing backslash ValueError\")\ntry:\n de# 1\ncheck(\"encode([a,b])\", lambda: encode([\"a\",\"b\"]) == \"a|b\")\n# 2\nprint(\"PASS\" if encode([\"a|b\", \"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\" else \"FAIL\", repr(encode([\"a|b\",\"c\\\\d\"])))\ncheck(\"roundtrip a|b/c\\\\d\", lambda: decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\n# 3\ncheck(\"decode a|b\", lambda: decode(\"a|b\") == [\"a\",\"b\"])\ncheck(\"decode empty\", lambda: decode(\"\") == [\"\"])\ncheck(\"decode |\", lambda: decode(\"|\") == [\"\",\"\"])\ncheck(\"decode ||\", lambda: decode(\"||\") == [\"\",\"\",\"\"])\n# 4 roundtrips\nfor F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\", \"\\\\\", \"|\", \"a\\\\|b\", \"x\\\\\\\\y\"], [\"\", \"\",\"\"], [\"\"], [\"\\\\\"]for F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\",abc\\\\ raises\", lambda: (\"should not reach\", decode(\"abc\\\\\") if False else (_ for _ infor F in ([\"héllo|wörld\"], [\"日本語\"\n decode(\"abc\\\\\")\n print(\"FAIL trailing backslash: no exception\")\nexcept ValueError:\n print(\"PASS trailing backslash ValueError\")\ntry:\n decode(\"acheck(\"encode([a,b])\", lambda: encode([\"a\",\"b\"]) == \"a|b\")\n# 2\nprint(\"PASS\" if encode([\"a|b\", \"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\" else \"FAIL\", repr(encode([\"a|b\",\"c\\\\d\"])))\ncheck(\"roundtrip a|b/c\\\\d\", lambda: decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\n# 3\ncheck(\"decode a|b\", lambda: decode(\"a|b\") == [\"a\",\"b\"])\ncheck(\"decode empty\", lambda: decode(\"\") == [\"\"])\ncheck(\"decode |\", lambda: decode(\"|\") == [\"\",\"\"])\ncheck(\"decode ||\", lambda: decode(\"||\") == [\"\",\"\",\"\"])\n# 4 roundtrips\nfor F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\", \"\\\\\", \"|\", \"a\\\\|b\", \"x\\\\\\\\y\"], [\"\", \"\",\"\"], [\"\"], [\"\\\\\"]for F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\",abc\\\\ raises\", lambda: (\"should not reach\", decode(\"abc\\\\\") if False else (_ for _ infor F in ([\"héllo|wörld\"], [\"日本語\"\n decode(\"abc\\\\\")\n print(\"FAIL trailing backslash: no exception\")\nexcept ValueError:\n print(\"PASS trailing backslash ValueError\")\ntry:\n decode(\"a\\\\xb\")\n p nt(\"FAIL invalid escape: no exception\")\nexcept Vaprint(\"PASS\" if encode([\"a|b\", \"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\" else \"FAIL\", repr(encode([\"a|b\",\"c\\\\d\"])))\ncheck(\"roundtrip a|b/c\\\\d\", lambda: decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\n# 3\ncheck(\"decode a|b\", lambda: decode(\"a|b\") == [\"a\",\"b\"])\ncheck(\"decode empty\", lambda: decode(\"\") == [\"\"])\ncheck(\"decode |\", lambda: decode(\"|\") == [\"\",\"\"])\ncheck(\"decode ||\", lambda: decode(\"||\") == [\"\",\"\",\"\"])\n# 4 roundtrips\nfor F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\", \"\\\\\", \"|\", \"a\\\\|b\", \"x\\\\\\\\y\"], [\"\", \"\",\"\"], [\"\"], [\"\\\\\"]for F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\",abc\\\\ raises\", lambda: (\"should not reach\", decode(\"abc\\\\\") if False else (_ for _ infor F in ([\"héllo|wörld\"], [\"日本語\"\n decode(\"abc\\\\\")\n print(\"FAIL trailing backslash: no exception\")\nexcept ValueError:\n print(\"PASS trailing backslash ValueError\")\ntry:\n decode(\"a\\\\xb\")\n p nt(\"FAIL invalid escape: no exception\")\nexcept ValueError:\n print(\"PASS invalid escape ValueError\")\ncheck(\"decode a\\\\|b\", lambda: decode(\"a\\\\|b\") == [\"a|b\"])\ncheck(\"decode a\\\\\\\\b\", lambda: decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\n# 6\ncheck(\"snowman passthrough\", lambda: decode(encode([\"\\u2603\"])) == [\"\\u2603\"] and \"\\u2603\" in encode([\"\\u2603\"]))\ncheck(\"encode snowman repr\", lambda: encode([\"\\u2603\"]) == \"\\u2603\")\nEOF\n File \"<stdin>\", line 23\n for F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\", \"\\\\\", \"|\", \"a\\\\|b\", \"x\\\\\\\\y\"], [\"\", \"\",\"\"], [\"\"], [\"\\\\\"]for F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\",abc\\\\ raises\", lambda: (\"should not reach\", decode(\"abc\\\\\") if False else (_ for _ infor F in ([\"héllo|wörld\"], [\"日本語\"\n ^^^\nSyntaxError: invalid syntax"
}
],
"is_error": false,
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 - <<'EOF'\nfrom codec import encode, decode\n\ndef check(name, fn):\n try:\n got = fn()\n print(f\"PASS {name}: got {got!r}\")\n except ValueError as e:\n print(f\"PASS {name}: ValueError -> {e}\")\n except Exception as e:\n print(f\"FAIL {name}: raised {type(e).__name__}({e})\")\n\n# 1\ncheck(\"encode([a,b])\", lambda: encode([\"a\",\"b\"]) == \"a|b\")\n# 2\nprint(\"PASS\" if encode([\"a|b\", \"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\" else \"FAIL\", repr(encode([\"a|b\",\"c\\\\d\"])))\ncheck(\"roundtrip a|b/c\\\\d\", lambda: decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\n# 3\ncheck(\"decode a|b\", lambda: decode(\"a|b\") == [\"a\",\"b\"])\ncheck(\"decode empty\", lambda: decode(\"\") == [\"\"])\ncheck(\"decode |\", lambda: decode(\"|\") == [\"\",\"\"])\ncheck(\"decode ||\", lambda: decode(\"||\") == [\"\",\"\",\"\"])\n# 4 roundtrips\nfor F in ([\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"], [\"\\\\|\", \"|\\\\\", \"\\\\\", \"|\", \"a\\\\|b\", \"x\\\\\\\\y\"], [\"\", \"\",\"\"], [\"\"], [\"\\\\\"], [\"|\"]):\n check(f\"roundtrip {F!r}\", lambda F=F: decode(encode(F)) == F)\n# 5\ncheck(\"decode abc\\\\ raises\", lambda: (\"should not reach\", decode(\"abc\\\\\") if False else (_ for _ in ()).throw(ValueError(\"sentinel\"))))\ntry:\n decode(\"abc\\\\\")\n print(\"FAIL trailing backslash: no exception\")\nexcept ValueError:\n print(\"PASS trailing backslash ValueError\")\ntry:\n decode(\"a\\\\xb\")\n print(\"FAIL invalid escape: no exception\")\nexcept ValueError:\n print(\"PASS invalid escape ValueError\")\ncheck(\"decode a\\\\|b\", lambda: decode(\"a\\\\|b\") == [\"a|b\"])\ncheck(\"decode a\\\\\\\\b\", lambda: decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\n# 6\ncheck(\"snowman passthrough\", lambda: decode(encode([\"\\u2603\"])) == [\"\\u2603\"] and \"\\u2603\" in encode([\"\\u2603\"]))\ncheck(\"encode snowman repr\", lambda: encode([\"\\u2603\"]) == \"\\u2603\")\nEOF",
"exit_code": 1,
"timeout": false,
"metadata": {
"exit_code": 1,
"pid": -1,
"username": "instructor",
"hostname": "workshop-host",
"working_dir": "/private/tmp/odsc-workshop6-v2/ledger-team-t1",
"py_interpreter_path": "/Users/instructor.shah/.cache/uv/archive-v0/cZpGatmgSZEYIeuAv16p4/bin/python",
"prefix": "",
"suffix": "\n[The command completed with exit code 1.]"
},
"full_output_save_dir": "/Users/instructor.shah/.openhands/agent-canvas/dev_conversations/6861ddb66ca44f0eba9f6c5729445fdc/subagents/8803737b34cc4352b68cc9ae51b40f03/observations",
"kind": "TerminalObservation"
},
"action_id": "a774ee2a-93a9-400b-a154-004fe6846d59",
"extended_content": [],
"kind": "ObservationEvent"
}Tool request: terminal
{
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c '\nfrom codec import encode, decode\n\nchecks = []\ndef expect(name, cond):\n checks.append((name, bool(cond)))\n\nexpect(\"e1\", encode([\"a\",\"b\"]) == \"a|b\")\nexpect(\"e2\", encode([\"a|b\",\"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\")\nexpect(\"e2rt\", decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\nexpect(\"d3\", decode(\"a|b\") == [\"a\",\"b\"])\nexpect(\"dempty\", decode(\"\") == [\"\"])\nexpect(\"dpipe\", decode(\"|\") == [\"\",\"\"])\nexpect(\"d2pipe\", decode(\"||\") == [\"\",\"\",\"\"])\n\nroundtrips = [\n [\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"],\n [\"\\\\|\", \"|\\\\\"], [\"\\\\\"], [\"|\"], [\"a\\\\|b\", \"x\\\\\\\\y\"],\n [\"\", \"\"], [\"\"], [\"\\\\\\u2603|\\\\|\"],\n]\nfor F in roundtrips:\n expect(\"rt:\"+repr(F), decode(encode(F)) == F)\n\ndef raises(line):\n try:\n decode(line)\n return False\n except ValueError:\n return True\nexpect(\"v1\", raises(\"abc\\\\\"))\nexpect(\"v2\", raises(\"a\\\\xb\"))\nexpect(\"v3single\", raises(\"\\\\\"))\nexpect(\"e3\", decode(\"a\\\\|b\") == [\"a|b\"])\nexpect(\"e4\", decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\nexpect(\"e5\", decode(\"\\\\|\") == [\"|\"])\nexpect(\"snow\", decode(encode([\"\\u2603\"])) == [\"\\u2603\"])\nexpect(\"snowraw\", encode([\"\\u2603\"]) == \"\\u2603\")\nexpect(\"nosub\", encode([\"a\\\\|b\"]) == \"a\\\\\\\\\\\\|b\")\n\nfor name, ok in checks:\n print((\"PASS\" if ok else \"FAIL\"), name)\nprint(\"ALL PASS\" if all(ok for _, ok in checks) else \"SOME FAIL\")\n'",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
}Full event evidence
{
"id": "a6d66e79-a4e4-438c-8418-e416f19e2a6e",
"timestamp": "2026-10-18T20:21:26.835966",
"source": "agent",
"parent_id": "6d0aa932-e487-4f61-8dfa-104859684043",
"thought": [],
"reasoning_content": null,
"thinking_blocks": [],
"action": {
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c '\nfrom codec import encode, decode\n\nchecks = []\ndef expect(name, cond):\n checks.append((name, bool(cond)))\n\nexpect(\"e1\", encode([\"a\",\"b\"]) == \"a|b\")\nexpect(\"e2\", encode([\"a|b\",\"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\")\nexpect(\"e2rt\", decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\nexpect(\"d3\", decode(\"a|b\") == [\"a\",\"b\"])\nexpect(\"dempty\", decode(\"\") == [\"\"])\nexpect(\"dpipe\", decode(\"|\") == [\"\",\"\"])\nexpect(\"d2pipe\", decode(\"||\") == [\"\",\"\",\"\"])\n\nroundtrips = [\n [\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"],\n [\"\\\\|\", \"|\\\\\"], [\"\\\\\"], [\"|\"], [\"a\\\\|b\", \"x\\\\\\\\y\"],\n [\"\", \"\"], [\"\"], [\"\\\\\\u2603|\\\\|\"],\n]\nfor F in roundtrips:\n expect(\"rt:\"+repr(F), decode(encode(F)) == F)\n\ndef raises(line):\n try:\n decode(line)\n return False\n except ValueError:\n return True\nexpect(\"v1\", raises(\"abc\\\\\"))\nexpect(\"v2\", raises(\"a\\\\xb\"))\nexpect(\"v3single\", raises(\"\\\\\"))\nexpect(\"e3\", decode(\"a\\\\|b\") == [\"a|b\"])\nexpect(\"e4\", decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\nexpect(\"e5\", decode(\"\\\\|\") == [\"|\"])\nexpect(\"snow\", decode(encode([\"\\u2603\"])) == [\"\\u2603\"])\nexpect(\"snowraw\", encode([\"\\u2603\"]) == \"\\u2603\")\nexpect(\"nosub\", encode([\"a\\\\|b\"]) == \"a\\\\\\\\\\\\|b\")\n\nfor name, ok in checks:\n print((\"PASS\" if ok else \"FAIL\"), name)\nprint(\"ALL PASS\" if all(ok for _, ok in checks) else \"SOME FAIL\")\n'",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
},
"tool_name": "terminal",
"tool_call_id": "call_0547ad6601fb43368fa2a43e",
"tool_call": {
"id": "call_0547ad6601fb43368fa2a43e",
"name": "terminal",
"arguments": "{\"command\": \"cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c '\\nfrom codec import encode, decode\\n\\nchecks = []\\ndef expect(name, cond):\\n checks.append((name, bool(cond)))\\n\\nexpect(\\\"e1\\\", encode([\\\"a\\\",\\\"b\\\"]) == \\\"a|b\\\")\\nexpect(\\\"e2\\\", encode([\\\"a|b\\\",\\\"c\\\\\\\\d\\\"]) == \\\"a\\\\\\\\|b|c\\\\\\\\\\\\\\\\d\\\")\\nexpect(\\\"e2rt\\\", decode(encode([\\\"a|b\\\",\\\"c\\\\\\\\d\\\"])) == [\\\"a|b\\\",\\\"c\\\\\\\\d\\\"])\\nexpect(\\\"d3\\\", decode(\\\"a|b\\\") == [\\\"a\\\",\\\"b\\\"])\\nexpect(\\\"dempty\\\", decode(\\\"\\\") == [\\\"\\\"])\\nexpect(\\\"dpipe\\\", decode(\\\"|\\\") == [\\\"\\\",\\\"\\\"])\\nexpect(\\\"d2pipe\\\", decode(\\\"||\\\") == [\\\"\\\",\\\"\\\",\\\"\\\"])\\n\\nroundtrips = [\\n [\\\"h\\u00e9llo|w\\u00f6rld\\\"], [\\\"\\u65e5\\u672c\\u8a9e\\\"], [\\\"\\\\U0001F600\\\"], [\\\"a\\\\\\\\b\\\"], [\\\"a|b|\\\"],\\n [\\\"\\\\\\\\|\\\", \\\"|\\\\\\\\\\\"], [\\\"\\\\\\\\\\\"], [\\\"|\\\"], [\\\"a\\\\\\\\|b\\\", \\\"x\\\\\\\\\\\\\\\\y\\\"],\\n [\\\"\\\", \\\"\\\"], [\\\"\\\"], [\\\"\\\\\\\\\\\\u2603|\\\\\\\\|\\\"],\\n]\\nfor F in roundtrips:\\n expect(\\\"rt:\\\"+repr(F), decode(encode(F)) == F)\\n\\ndef raises(line):\\n try:\\n decode(line)\\n return False\\n except ValueError:\\n return True\\nexpect(\\\"v1\\\", raises(\\\"abc\\\\\\\\\\\"))\\nexpect(\\\"v2\\\", raises(\\\"a\\\\\\\\xb\\\"))\\nexpect(\\\"v3single\\\", raises(\\\"\\\\\\\\\\\"))\\nexpect(\\\"e3\\\", decode(\\\"a\\\\\\\\|b\\\") == [\\\"a|b\\\"])\\nexpect(\\\"e4\\\", decode(\\\"a\\\\\\\\\\\\\\\\b\\\") == [\\\"a\\\\\\\\b\\\"])\\nexpect(\\\"e5\\\", decode(\\\"\\\\\\\\|\\\") == [\\\"|\\\"])\\nexpect(\\\"snow\\\", decode(encode([\\\"\\\\u2603\\\"])) == [\\\"\\\\u2603\\\"])\\nexpect(\\\"snowraw\\\", encode([\\\"\\\\u2603\\\"]) == \\\"\\\\u2603\\\")\\nexpect(\\\"nosub\\\", encode([\\\"a\\\\\\\\|b\\\"]) == \\\"a\\\\\\\\\\\\\\\\\\\\\\\\|b\\\")\\n\\nfor name, ok in checks:\\n print((\\\"PASS\\\" if ok else \\\"FAIL\\\"), name)\\nprint(\\\"ALL PASS\\\" if all(ok for _, ok in checks) else \\\"SOME FAIL\\\")\\n'\", \"security_risk\": \"LOW\", \"summary\": \"Run concise in-memory verification probes\"}",
"origin": "completion"
},
"llm_response_id": "gen-1792372876-74Otu31RD7PtIX3uFLI0",
"security_risk": "UNKNOWN",
"summary": "Run concise in-memory verification probes",
"kind": "ActionEvent"
}Tool result: terminal
cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c '
from codec import encode, decode
checks = []
def expect(name, cond):
checks.append((name, bool(cond)))
expect("e1", encode(["a","b"]) == "a|b")
expect("e2", encode(["a|b","c\\d"]) == "a\\|b|c\\\\d")
expect("e2rt", decode(encode(["a|b","c\\d"])) == ["a|b","c\\d"])
expect("d3", decode("a|b") == ["a","b"])
expect("dempty", decode("") == [""])
expect("dpipe", decode("|") == ["",""])
expect("d2pipe", decode("||") == ["","",""])
roundtrips = [
["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"],
["\\|", "|\\"], ["\\"], ["|"], ["a\\|b", "x\\\\y"],
["", ""], [""], ["\\\u2603|\\|"],
]
for F in roundtrips:
expect("rt:"+repr(F), decode(encode(F)) == F)
def raises(line):
try:
decode(line)
return False
except ValueError:
return True
expect("v1", raises("abc\\"))
expect("v2", raises("a\\xb"))
expect("v3single", raises("\\"))
expect("e3", decode("a\\|b") == ["a|b"])
expect("e4", decode("a\\\\b") == ["a\\b"])
expect("e5", decode("\\|") == ["|"])
expect(checks = []
def expect(name, cond):
checks.append((name, bool(cond)))
expect("e1", encode(["a","b"]) == "a|b")
expect("e2", encode(["a|b","c\\d"]) == "a\\|b|c\\\\d")
expect("e2rt", decode(encode(["a|b","c\\d"])) == ["a|b","c\\d"])
expect("d3", decode("a|b") == ["a","b"])
expect("dempty", decode("") == [""])
expect("dpipe", decode("|") == ["",""])
expect("d2pipe", decode("||") == ["","",""])
roundtrips = [
["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"],
["\\|", "|\\"], ["\\"], ["|"], ["a\\|b", "x\\\\y"],
["", ""], [""], ["\\\u2603|\\|"],
]
for F in roundtrips:
expect("rt:"+repr(F), decode(encode(F)) == F)
def raises(line):
try:
decode(line)
return False
except ValueError:
return True
expect("v1", raises("abc\\"))
expect("v2", raises("a\\xb"))
expect("v3single", raises("\\"))
expect("e3", decode("a\\|b") == ["a|b"])
expect("e4", decode("a\\\\b") == ["a\\b"])
expect("e5", decode("\\|") == ["|"])
expect("snow", decode(def expect(name, cond):
checks.append((name, bool(cond)))
expect("e1", encode(["a","b"]) == "a|b")
expect("e2", encode(["a|b","c\\d"]) == "a\\|b|c\\\\d")
expect("e2rt", decode(encode(["a|b","c\\d"])) == ["a|b","c\\d"])
expect("d3", decode("a|b") == ["a","b"])
expect("dempty", decode("") == [""])
expect("dpipe", decode("|") == ["",""])
expect("d2pipe", decode("||") == ["","",""])
roundtrips = [
["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"],
["\\|", "|\\"], ["\\"], ["|"], ["a\\|b", "x\\\\y"],
["", ""], [""], ["\\\u2603|\\|"],
]
for F in roundtrips:
expect("rt:"+repr(F), decode(encode(F)) == F)
def raises(line):
try:
decode(line)
return False
except ValueError:
return True
expect("v1", raises("abc\\"))
expect("v2", raises("a\\xb"))
expect("v3single", raises("\\"))
expect("e3", decode("a\\|b") == ["a|b"])
expect("e4", decode("a\\\\b") == ["a\\b"])
expect("e5", decode("\\|") == ["|"])
expect("snow", decode(encode(["\u2603"]))expect("sn03"])
expect("snowraw", encode(["\expect("e1", encode(["a","b"]) == "a|b")
expect("e2", encode(["a|b","c\\d"]) == "a\\|b|c\\\\d")
expect("e2rt", decode(encode(["a|b","c\\d"])) == ["a|b","c\\d"])
expect("d3", decode("a|b") == ["a","b"])
expect("dempty", decode("") == [""])
expect("dpipe", decode("|") == ["",""])
expect("d2pipe", decode("||") == ["","",""])
roundtrips = [
["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"],
["\\|", "|\\"], ["\\"], ["|"], ["a\\|b", "x\\\\y"],
["", ""], [""], ["\\\u2603|\\|"],
]
for F in roundtrips:
expect("rt:"+repr(F), decode(encode(F)) == F)
def raises(line):
try:
decode(line)
return False
except ValueError:
return True
expect("v1", raises("abc\\"))
expect("v2", raises("a\\xb"))
expect("v3single", raises("\\"))
expect("e3", decode("a\\|b") == ["a|b"])
expect("e4", decode("a\\\\b") == ["a\\b"])
expect("e5", decode("\\|") == ["|"])
expect("snow", decode(encode(["\u2603"]))expect("sn03"])
expect("snowraw", encode(["\u2603"]) == "\u2603")
expect("nosub", encode(["a\\|b"]) == "a\\\\\\|b")
expect("nosub", encode(["aexpect("e2rt", decode(encode(["a|b","c\\d"])) == ["a|b","c\\d"])
expect("d3", decode("a|b") == ["a","b"])
expect("dempty", decode("") == [""])
expect("dpipe", decode("|") == ["",""])
expect("d2pipe", decode("||") == ["","",""])
roundtrips = [
["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"],
["\\|", "|\\"], ["\\"], ["|"], ["a\\|b", "x\\\\y"],
["", ""], [""], ["\\\u2603|\\|"],
]
for F in roundtrips:
expect("rt:"+repr(F), decode(encode(F)) == F)
def raises(line):
try:
decode(line)
return False
except ValueError:
return True
expect("v1", raises("abc\\"))
expect("v2", raises("a\\xb"))
expect("v3single", raises("\\"))
expect("e3", decode("a\\|b") == ["a|b"])
expect("e4", decode("a\\\\b") == ["a\\b"])
expect("e5", decode("\\|") == ["|"])
expect("snow", decode(encode(["\u2603"]))expect("sn03"])
expect("snowraw", encode(["\u2603"]) == "\u2603")
expect("nosub", encode(["a\\|b"]) == "a\\\\\\|b")
expect("nosub", encode(["a\\|b"]) == "a\\\\\\|b")
n03 "FAIL"), name)
print("ALL PASS" if all(ok for _, ok in checks) else "SOME FAIL")
'roundtrips = [
["héllo|wörld"], ["日本語"], ["\U0001F600"], ["a\\b"], ["a|b|"],
["\\|", "|\\"], ["\\"], ["|"], ["a\\|b", "x\\\\y"],
["", ""], [""], ["\\\u2603|\\|"],
]
for F in roundtrips:
expect("rt:"+repr(F), decode(encode(F)) == F)
def raises(line):
try:
decode(line)
return False
except ValueError:
return True
expect("v1", raises("abc\\"))
expect("v2", raises("a\\xb"))
expect("v3single", raises("\\"))
expect("e3", decode("a\\|b") == ["a|b"])
expect("e4", decode("a\\\\b") == ["a\\b"])
expect("e5", decode("\\|") == ["|"])
expect("snow", decode(encode(["\u2603"]))expect("sn03"])
expect("snowraw", encode(["\u2603"]) == "\u2603")
expect("nosub", encode(["a\\|b"]) == "a\\\\\\|b")
expect("nosub", encode(["a\\|b"]) == "a\\\\\\|b")
n03 "FAIL"), name)
print("ALL PASS" if all(ok for _, ok in checks) else "SOME FAIL")
'def raises(line):
try:
decode(line)
return False
except ValueError:
return True
expect("v1", raises("abc\\"))
expect("v2", raises("a\\xb"))
expect("v3single", raises("\\"))
expect("e3", decode("a\\|b") == ["a|b"])
expect("e4", decode("a\\\\b") == ["a\\b"])
expect("e5", decode("\\|") == ["|"])
expect("snow", decode(encode(["\u2603"]))expect("sn03"])
expect("snowraw", encode(["\u2603"]) == "\u2603")
expect("nosub", encode(["a\\|b"]) == "a\\\\\\|b")
expect("nosub", encode(["a\\|b"]) == "a\\\\\\|b")
n03 "FAIL"), name)
print("ALL PASS" if all(ok for _, ok in checks) else "SOME FAIL")
' return True
expect("v1", raises("abc\\"))
expect("v2", raises("a\\xb"))
expect("v3single", raises("\\"))
expect("e3", decode("a\\|b") == ["a|b"])
expect("e4", decode("a\\\\b") == ["a\\b"])
expect("e5", decode("\\|") == ["|"])
expect("snow", decode(encode(["\u2603"]))expect("sn03"])
expect("snowraw", encode(["\u2603"]) == "\u2603")
expect("nosub", encode(["a\\|b"]) == "a\\\\\\|b")
expect("nosub", encode(["a\\|b"]) == "a\\\\\\|b")
n03 "FAIL"), name)
print("ALL PASS" if all(ok for _, ok in checks) else "SOME FAIL")
'expect("nosub", encode(["a\\|b"]) == "a\\\\\\|b")
n03 "FAIL"), name)
print("ALL PASS" if all(ok for _, ok in checks) else "SOME FAIL")
''
File "<string>", line 36
expect("snow", decode(encode(["\u2603"]))expect("sn03"])
^
SyntaxError: closing parenthesis ']' does not match opening parenthesis '('Full event evidence
{
"id": "d032c086-7cf7-4be4-b43a-dfce378bfcee",
"timestamp": "2026-10-18T20:21:27.680675",
"source": "environment",
"parent_id": "a6d66e79-a4e4-438c-8418-e416f19e2a6e",
"tool_name": "terminal",
"tool_call_id": "call_0547ad6601fb43368fa2a43e",
"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c '\nfrom codec import encode, decode\n\nchecks = []\ndef expect(name, cond):\n checks.append((name, bool(cond)))\n\nexpect(\"e1\", encode([\"a\",\"b\"]) == \"a|b\")\nexpect(\"e2\", encode([\"a|b\",\"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\")\nexpect(\"e2rt\", decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\nexpect(\"d3\", decode(\"a|b\") == [\"a\",\"b\"])\nexpect(\"dempty\", decode(\"\") == [\"\"])\nexpect(\"dpipe\", decode(\"|\") == [\"\",\"\"])\nexpect(\"d2pipe\", decode(\"||\") == [\"\",\"\",\"\"])\n\nroundtrips = [\n [\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"],\n [\"\\\\|\", \"|\\\\\"], [\"\\\\\"], [\"|\"], [\"a\\\\|b\", \"x\\\\\\\\y\"],\n [\"\", \"\"], [\"\"], [\"\\\\\\u2603|\\\\|\"],\n]\nfor F in roundtrips:\n expect(\"rt:\"+repr(F), decode(encode(F)) == F)\n\ndef raises(line):\n try:\n decode(line)\n return False\n except ValueError:\n return True\nexpect(\"v1\", raises(\"abc\\\\\"))\nexpect(\"v2\", raises(\"a\\\\xb\"))\nexpect(\"v3single\", raises(\"\\\\\"))\nexpect(\"e3\", decode(\"a\\\\|b\") == [\"a|b\"])\nexpect(\"e4\", decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\nexpect(\"e5\", decode(\"\\\\|\") == [\"|\"])\nexpect(checks = []\ndef expect(name, cond):\n checks.append((name, bool(cond)))\n\nexpect(\"e1\", encode([\"a\",\"b\"]) == \"a|b\")\nexpect(\"e2\", encode([\"a|b\",\"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\")\nexpect(\"e2rt\", decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\nexpect(\"d3\", decode(\"a|b\") == [\"a\",\"b\"])\nexpect(\"dempty\", decode(\"\") == [\"\"])\nexpect(\"dpipe\", decode(\"|\") == [\"\",\"\"])\nexpect(\"d2pipe\", decode(\"||\") == [\"\",\"\",\"\"])\n\nroundtrips = [\n [\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"],\n [\"\\\\|\", \"|\\\\\"], [\"\\\\\"], [\"|\"], [\"a\\\\|b\", \"x\\\\\\\\y\"],\n [\"\", \"\"], [\"\"], [\"\\\\\\u2603|\\\\|\"],\n]\nfor F in roundtrips:\n expect(\"rt:\"+repr(F), decode(encode(F)) == F)\n\ndef raises(line):\n try:\n decode(line)\n return False\n except ValueError:\n return True\nexpect(\"v1\", raises(\"abc\\\\\"))\nexpect(\"v2\", raises(\"a\\\\xb\"))\nexpect(\"v3single\", raises(\"\\\\\"))\nexpect(\"e3\", decode(\"a\\\\|b\") == [\"a|b\"])\nexpect(\"e4\", decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\nexpect(\"e5\", decode(\"\\\\|\") == [\"|\"])\nexpect(\"snow\", decode(def expect(name, cond):\n checks.append((name, bool(cond)))\n\nexpect(\"e1\", encode([\"a\",\"b\"]) == \"a|b\")\nexpect(\"e2\", encode([\"a|b\",\"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\")\nexpect(\"e2rt\", decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\nexpect(\"d3\", decode(\"a|b\") == [\"a\",\"b\"])\nexpect(\"dempty\", decode(\"\") == [\"\"])\nexpect(\"dpipe\", decode(\"|\") == [\"\",\"\"])\nexpect(\"d2pipe\", decode(\"||\") == [\"\",\"\",\"\"])\n\nroundtrips = [\n [\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"],\n [\"\\\\|\", \"|\\\\\"], [\"\\\\\"], [\"|\"], [\"a\\\\|b\", \"x\\\\\\\\y\"],\n [\"\", \"\"], [\"\"], [\"\\\\\\u2603|\\\\|\"],\n]\nfor F in roundtrips:\n expect(\"rt:\"+repr(F), decode(encode(F)) == F)\n\ndef raises(line):\n try:\n decode(line)\n return False\n except ValueError:\n return True\nexpect(\"v1\", raises(\"abc\\\\\"))\nexpect(\"v2\", raises(\"a\\\\xb\"))\nexpect(\"v3single\", raises(\"\\\\\"))\nexpect(\"e3\", decode(\"a\\\\|b\") == [\"a|b\"])\nexpect(\"e4\", decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\nexpect(\"e5\", decode(\"\\\\|\") == [\"|\"])\nexpect(\"snow\", decode(encode([\"\\u2603\"]))expect(\"sn03\"])\nexpect(\"snowraw\", encode([\"\\expect(\"e1\", encode([\"a\",\"b\"]) == \"a|b\")\nexpect(\"e2\", encode([\"a|b\",\"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\")\nexpect(\"e2rt\", decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\nexpect(\"d3\", decode(\"a|b\") == [\"a\",\"b\"])\nexpect(\"dempty\", decode(\"\") == [\"\"])\nexpect(\"dpipe\", decode(\"|\") == [\"\",\"\"])\nexpect(\"d2pipe\", decode(\"||\") == [\"\",\"\",\"\"])\n\nroundtrips = [\n [\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"],\n [\"\\\\|\", \"|\\\\\"], [\"\\\\\"], [\"|\"], [\"a\\\\|b\", \"x\\\\\\\\y\"],\n [\"\", \"\"], [\"\"], [\"\\\\\\u2603|\\\\|\"],\n]\nfor F in roundtrips:\n expect(\"rt:\"+repr(F), decode(encode(F)) == F)\n\ndef raises(line):\n try:\n decode(line)\n return False\n except ValueError:\n return True\nexpect(\"v1\", raises(\"abc\\\\\"))\nexpect(\"v2\", raises(\"a\\\\xb\"))\nexpect(\"v3single\", raises(\"\\\\\"))\nexpect(\"e3\", decode(\"a\\\\|b\") == [\"a|b\"])\nexpect(\"e4\", decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\nexpect(\"e5\", decode(\"\\\\|\") == [\"|\"])\nexpect(\"snow\", decode(encode([\"\\u2603\"]))expect(\"sn03\"])\nexpect(\"snowraw\", encode([\"\\u2603\"]) == \"\\u2603\")\nexpect(\"nosub\", encode([\"a\\\\|b\"]) == \"a\\\\\\\\\\\\|b\")\nexpect(\"nosub\", encode([\"aexpect(\"e2rt\", decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\nexpect(\"d3\", decode(\"a|b\") == [\"a\",\"b\"])\nexpect(\"dempty\", decode(\"\") == [\"\"])\nexpect(\"dpipe\", decode(\"|\") == [\"\",\"\"])\nexpect(\"d2pipe\", decode(\"||\") == [\"\",\"\",\"\"])\n\nroundtrips = [\n [\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"],\n [\"\\\\|\", \"|\\\\\"], [\"\\\\\"], [\"|\"], [\"a\\\\|b\", \"x\\\\\\\\y\"],\n [\"\", \"\"], [\"\"], [\"\\\\\\u2603|\\\\|\"],\n]\nfor F in roundtrips:\n expect(\"rt:\"+repr(F), decode(encode(F)) == F)\n\ndef raises(line):\n try:\n decode(line)\n return False\n except ValueError:\n return True\nexpect(\"v1\", raises(\"abc\\\\\"))\nexpect(\"v2\", raises(\"a\\\\xb\"))\nexpect(\"v3single\", raises(\"\\\\\"))\nexpect(\"e3\", decode(\"a\\\\|b\") == [\"a|b\"])\nexpect(\"e4\", decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\nexpect(\"e5\", decode(\"\\\\|\") == [\"|\"])\nexpect(\"snow\", decode(encode([\"\\u2603\"]))expect(\"sn03\"])\nexpect(\"snowraw\", encode([\"\\u2603\"]) == \"\\u2603\")\nexpect(\"nosub\", encode([\"a\\\\|b\"]) == \"a\\\\\\\\\\\\|b\")\nexpect(\"nosub\", encode([\"a\\\\|b\"]) == \"a\\\\\\\\\\\\|b\")\nn03 \"FAIL\"), name)\nprint(\"ALL PASS\" if all(ok for _, ok in checks) else \"SOME FAIL\")\n'roundtrips = [\n [\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"],\n [\"\\\\|\", \"|\\\\\"], [\"\\\\\"], [\"|\"], [\"a\\\\|b\", \"x\\\\\\\\y\"],\n [\"\", \"\"], [\"\"], [\"\\\\\\u2603|\\\\|\"],\n]\nfor F in roundtrips:\n expect(\"rt:\"+repr(F), decode(encode(F)) == F)\n\ndef raises(line):\n try:\n decode(line)\n return False\n except ValueError:\n return True\nexpect(\"v1\", raises(\"abc\\\\\"))\nexpect(\"v2\", raises(\"a\\\\xb\"))\nexpect(\"v3single\", raises(\"\\\\\"))\nexpect(\"e3\", decode(\"a\\\\|b\") == [\"a|b\"])\nexpect(\"e4\", decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\nexpect(\"e5\", decode(\"\\\\|\") == [\"|\"])\nexpect(\"snow\", decode(encode([\"\\u2603\"]))expect(\"sn03\"])\nexpect(\"snowraw\", encode([\"\\u2603\"]) == \"\\u2603\")\nexpect(\"nosub\", encode([\"a\\\\|b\"]) == \"a\\\\\\\\\\\\|b\")\nexpect(\"nosub\", encode([\"a\\\\|b\"]) == \"a\\\\\\\\\\\\|b\")\nn03 \"FAIL\"), name)\nprint(\"ALL PASS\" if all(ok for _, ok in checks) else \"SOME FAIL\")\n'def raises(line):\n try:\n decode(line)\n return False\n except ValueError:\n return True\nexpect(\"v1\", raises(\"abc\\\\\"))\nexpect(\"v2\", raises(\"a\\\\xb\"))\nexpect(\"v3single\", raises(\"\\\\\"))\nexpect(\"e3\", decode(\"a\\\\|b\") == [\"a|b\"])\nexpect(\"e4\", decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\nexpect(\"e5\", decode(\"\\\\|\") == [\"|\"])\nexpect(\"snow\", decode(encode([\"\\u2603\"]))expect(\"sn03\"])\nexpect(\"snowraw\", encode([\"\\u2603\"]) == \"\\u2603\")\nexpect(\"nosub\", encode([\"a\\\\|b\"]) == \"a\\\\\\\\\\\\|b\")\nexpect(\"nosub\", encode([\"a\\\\|b\"]) == \"a\\\\\\\\\\\\|b\")\nn03 \"FAIL\"), name)\nprint(\"ALL PASS\" if all(ok for _, ok in checks) else \"SOME FAIL\")\n' return True\nexpect(\"v1\", raises(\"abc\\\\\"))\nexpect(\"v2\", raises(\"a\\\\xb\"))\nexpect(\"v3single\", raises(\"\\\\\"))\nexpect(\"e3\", decode(\"a\\\\|b\") == [\"a|b\"])\nexpect(\"e4\", decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\nexpect(\"e5\", decode(\"\\\\|\") == [\"|\"])\nexpect(\"snow\", decode(encode([\"\\u2603\"]))expect(\"sn03\"])\nexpect(\"snowraw\", encode([\"\\u2603\"]) == \"\\u2603\")\nexpect(\"nosub\", encode([\"a\\\\|b\"]) == \"a\\\\\\\\\\\\|b\")\nexpect(\"nosub\", encode([\"a\\\\|b\"]) == \"a\\\\\\\\\\\\|b\")\nn03 \"FAIL\"), name)\nprint(\"ALL PASS\" if all(ok for _, ok in checks) else \"SOME FAIL\")\n'expect(\"nosub\", encode([\"a\\\\|b\"]) == \"a\\\\\\\\\\\\|b\")\nn03 \"FAIL\"), name)\nprint(\"ALL PASS\" if all(ok for _, ok in checks) else \"SOME FAIL\")\n''\n File \"<string>\", line 36\n expect(\"snow\", decode(encode([\"\\u2603\"]))expect(\"sn03\"])\n ^\nSyntaxError: closing parenthesis ']' does not match opening parenthesis '('"
}
],
"is_error": false,
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c '\nfrom codec import encode, decode\n\nchecks = []\ndef expect(name, cond):\n checks.append((name, bool(cond)))\n\nexpect(\"e1\", encode([\"a\",\"b\"]) == \"a|b\")\nexpect(\"e2\", encode([\"a|b\",\"c\\\\d\"]) == \"a\\\\|b|c\\\\\\\\d\")\nexpect(\"e2rt\", decode(encode([\"a|b\",\"c\\\\d\"])) == [\"a|b\",\"c\\\\d\"])\nexpect(\"d3\", decode(\"a|b\") == [\"a\",\"b\"])\nexpect(\"dempty\", decode(\"\") == [\"\"])\nexpect(\"dpipe\", decode(\"|\") == [\"\",\"\"])\nexpect(\"d2pipe\", decode(\"||\") == [\"\",\"\",\"\"])\n\nroundtrips = [\n [\"héllo|wörld\"], [\"日本語\"], [\"\\U0001F600\"], [\"a\\\\b\"], [\"a|b|\"],\n [\"\\\\|\", \"|\\\\\"], [\"\\\\\"], [\"|\"], [\"a\\\\|b\", \"x\\\\\\\\y\"],\n [\"\", \"\"], [\"\"], [\"\\\\\\u2603|\\\\|\"],\n]\nfor F in roundtrips:\n expect(\"rt:\"+repr(F), decode(encode(F)) == F)\n\ndef raises(line):\n try:\n decode(line)\n return False\n except ValueError:\n return True\nexpect(\"v1\", raises(\"abc\\\\\"))\nexpect(\"v2\", raises(\"a\\\\xb\"))\nexpect(\"v3single\", raises(\"\\\\\"))\nexpect(\"e3\", decode(\"a\\\\|b\") == [\"a|b\"])\nexpect(\"e4\", decode(\"a\\\\\\\\b\") == [\"a\\\\b\"])\nexpect(\"e5\", decode(\"\\\\|\") == [\"|\"])\nexpect(\"snow\", decode(encode([\"\\u2603\"])) == [\"\\u2603\"])\nexpect(\"snowraw\", encode([\"\\u2603\"]) == \"\\u2603\")\nexpect(\"nosub\", encode([\"a\\\\|b\"]) == \"a\\\\\\\\\\\\|b\")\n\nfor name, ok in checks:\n print((\"PASS\" if ok else \"FAIL\"), name)\nprint(\"ALL PASS\" if all(ok for _, ok in checks) else \"SOME FAIL\")\n'",
"exit_code": 1,
"timeout": false,
"metadata": {
"exit_code": 1,
"pid": -1,
"username": "instructor",
"hostname": "workshop-host",
"working_dir": "/private/tmp/odsc-workshop6-v2/ledger-team-t1",
"py_interpreter_path": "/Users/instructor.shah/.cache/uv/archive-v0/cZpGatmgSZEYIeuAv16p4/bin/python",
"prefix": "",
"suffix": "\n[The command completed with exit code 1.]"
},
"full_output_save_dir": "/Users/instructor.shah/.openhands/agent-canvas/dev_conversations/6861ddb66ca44f0eba9f6c5729445fdc/subagents/8803737b34cc4352b68cc9ae51b40f03/observations",
"kind": "TerminalObservation"
},
"action_id": "a6d66e79-a4e4-438c-8418-e416f19e2a6e",
"extended_content": [],
"kind": "ObservationEvent"
}Tool request: terminal
{
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c \"from codec import encode, decode; print(repr(encode(['a','b']))); print(repr(decode('a|b')))\"",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
}Full event evidence
{
"id": "8bf7620b-fae5-4d51-ba1f-95e77d8290f9",
"timestamp": "2026-10-18T20:21:34.942347",
"source": "agent",
"parent_id": "d032c086-7cf7-4be4-b43a-dfce378bfcee",
"thought": [],
"reasoning_content": null,
"thinking_blocks": [],
"action": {
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c \"from codec import encode, decode; print(repr(encode(['a','b']))); print(repr(decode('a|b')))\"",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
},
"tool_name": "terminal",
"tool_call_id": "call_b8736299ad2846048eeea02d",
"tool_call": {
"id": "call_b8736299ad2846048eeea02d",
"name": "terminal",
"arguments": "{\"command\": \"cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c \\\"from codec import encode, decode; print(repr(encode(['a','b']))); print(repr(decode('a|b')))\\\"\", \"security_risk\": \"LOW\", \"summary\": \"Minimal probe of encode and decode\"}",
"origin": "completion"
},
"llm_response_id": "gen-1792372887-2TduXxOxVcuy3sG9mBBR",
"security_risk": "UNKNOWN",
"summary": "Minimal probe of encode and decode",
"kind": "ActionEvent"
}Tool result: terminal
'a|b'
['a', 'b']
Full event evidence
{
"id": "2c9ebc52-5eae-4ecc-a15f-7eb0b75044ce",
"timestamp": "2026-10-18T20:21:35.743247",
"source": "environment",
"parent_id": "8bf7620b-fae5-4d51-ba1f-95e77d8290f9",
"tool_name": "terminal",
"tool_call_id": "call_b8736299ad2846048eeea02d",
"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "'a|b'\n['a', 'b']"
}
],
"is_error": false,
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c \"from codec import encode, decode; print(repr(encode(['a','b']))); print(repr(decode('a|b')))\"",
"exit_code": 0,
"timeout": false,
"metadata": {
"exit_code": 0,
"pid": -1,
"username": "instructor",
"hostname": "workshop-host",
"working_dir": "/private/tmp/odsc-workshop6-v2/ledger-team-t1",
"py_interpreter_path": "/Users/instructor.shah/.cache/uv/archive-v0/cZpGatmgSZEYIeuAv16p4/bin/python",
"prefix": "",
"suffix": "\n[The command completed with exit code 0.]"
},
"full_output_save_dir": "/Users/instructor.shah/.openhands/agent-canvas/dev_conversations/6861ddb66ca44f0eba9f6c5729445fdc/subagents/8803737b34cc4352b68cc9ae51b40f03/observations",
"kind": "TerminalObservation"
},
"action_id": "8bf7620b-fae5-4d51-ba1f-95e77d8290f9",
"extended_content": [],
"kind": "ObservationEvent"
}Tool request: terminal
{
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c \"\nfrom codec import encode, decode\nresults = []\ndef ck(name, cond):\n results.append((name, bool(cond)))\n\nck('e1', encode(['a','b']) == 'a|b')\nck('e2', encode(['a|b','c\\\\\\\\d']) == 'a\\\\\\\\|b|c\\\\\\\\\\\\\\\\d')\nck('e2rt', decode(encode(['a|b','c\\\\\\\\d'])) == ['a|b','c\\\\\\\\d'])\nck('d1', decode('a|b') == ['a','b'])\nck('d2', decode('') == [''])\nck('d3', decode('|') == ['',''])\nck('d4', decode('||') == ['','',''])\nck('x1', decode('a\\\\\\\\|b') == ['a|b'])\nck('x2', decode('a\\\\\\\\\\\\\\\\b') == ['a\\\\\\\\b'])\nok = all(v for _, v in results)\nfor n, v in results:\n print('PASS' if v else 'FAIL', n)\nprint('ALL PASS' if ok else 'SOME FAIL')\n\"",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
}Full event evidence
{
"id": "93553419-4a7d-4508-b273-5b2b6321978f",
"timestamp": "2026-10-18T20:21:48.033969",
"source": "agent",
"parent_id": "2c9ebc52-5eae-4ecc-a15f-7eb0b75044ce",
"thought": [],
"reasoning_content": null,
"thinking_blocks": [],
"action": {
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c \"\nfrom codec import encode, decode\nresults = []\ndef ck(name, cond):\n results.append((name, bool(cond)))\n\nck('e1', encode(['a','b']) == 'a|b')\nck('e2', encode(['a|b','c\\\\\\\\d']) == 'a\\\\\\\\|b|c\\\\\\\\\\\\\\\\d')\nck('e2rt', decode(encode(['a|b','c\\\\\\\\d'])) == ['a|b','c\\\\\\\\d'])\nck('d1', decode('a|b') == ['a','b'])\nck('d2', decode('') == [''])\nck('d3', decode('|') == ['',''])\nck('d4', decode('||') == ['','',''])\nck('x1', decode('a\\\\\\\\|b') == ['a|b'])\nck('x2', decode('a\\\\\\\\\\\\\\\\b') == ['a\\\\\\\\b'])\nok = all(v for _, v in results)\nfor n, v in results:\n print('PASS' if v else 'FAIL', n)\nprint('ALL PASS' if ok else 'SOME FAIL')\n\"",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
},
"tool_name": "terminal",
"tool_call_id": "call_469033fa93044ed0908663b9",
"tool_call": {
"id": "call_469033fa93044ed0908663b9",
"name": "terminal",
"arguments": "{\"command\": \"cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c \\\"\\nfrom codec import encode, decode\\nresults = []\\ndef ck(name, cond):\\n results.append((name, bool(cond)))\\n\\nck('e1', encode(['a','b']) == 'a|b')\\nck('e2', encode(['a|b','c\\\\\\\\\\\\\\\\d']) == 'a\\\\\\\\\\\\\\\\|b|c\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\d')\\nck('e2rt', decode(encode(['a|b','c\\\\\\\\\\\\\\\\d'])) == ['a|b','c\\\\\\\\\\\\\\\\d'])\\nck('d1', decode('a|b') == ['a','b'])\\nck('d2', decode('') == [''])\\nck('d3', decode('|') == ['',''])\\nck('d4', decode('||') == ['','',''])\\nck('x1', decode('a\\\\\\\\\\\\\\\\|b') == ['a|b'])\\nck('x2', decode('a\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\b') == ['a\\\\\\\\\\\\\\\\b'])\\nok = all(v for _, v in results)\\nfor n, v in results:\\n print('PASS' if v else 'FAIL', n)\\nprint('ALL PASS' if ok else 'SOME FAIL')\\n\\\"\", \"security_risk\": \"LOW\", \"summary\": \"Probe core encode/decode behaviors\"}",
"origin": "completion"
},
"llm_response_id": "gen-1792372895-Ys87z8UrWoC2WABpb0Df",
"security_risk": "UNKNOWN",
"summary": "Probe core encode/decode behaviors",
"kind": "ActionEvent"
}Tool result: terminal
ck('e1', encode(['a','b']) == 'a|b')
ck('e2', encode(['a|b','c\\\\d']) == 'a\\\\|b|c\\\\\\\\d')
ck('e2rt', decode(encode(['a|b','c\\\\d'])) == ['a|b','c\\\\d'])
ck('d1', decode('a|b') == ['a','b'])
ck('d2', decode('') == [''])
ck('d3', decode('|') == ['',''])
ck('d4', decode('||') == ['','',''])
ck('x1', decode('a\\\\|b') == ['a|b'])
ck('x2', decode('a\\\\\\\\b') == ['a\\\\b'])
ok = all(v for _, v in results)
for n, v in results:
print('PASS' if v else 'FAIL', n)
print('ALL PASS' if ok else 'SOME FAIL')
"
PASS e1
PASS e2
PASS e2rt
PASS d1
PASS d2
PASS d3
PASS d4
PASS x1
PASS x2
ALL PASSFull event evidence
{
"id": "68222893-e001-408a-adf1-877c6fa605e9",
"timestamp": "2026-10-18T20:21:48.826333",
"source": "environment",
"parent_id": "93553419-4a7d-4508-b273-5b2b6321978f",
"tool_name": "terminal",
"tool_call_id": "call_469033fa93044ed0908663b9",
"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "ck('e1', encode(['a','b']) == 'a|b')\nck('e2', encode(['a|b','c\\\\\\\\d']) == 'a\\\\\\\\|b|c\\\\\\\\\\\\\\\\d')\nck('e2rt', decode(encode(['a|b','c\\\\\\\\d'])) == ['a|b','c\\\\\\\\d'])\nck('d1', decode('a|b') == ['a','b'])\nck('d2', decode('') == [''])\nck('d3', decode('|') == ['',''])\nck('d4', decode('||') == ['','',''])\nck('x1', decode('a\\\\\\\\|b') == ['a|b'])\nck('x2', decode('a\\\\\\\\\\\\\\\\b') == ['a\\\\\\\\b'])\nok = all(v for _, v in results)\nfor n, v in results:\n print('PASS' if v else 'FAIL', n)\nprint('ALL PASS' if ok else 'SOME FAIL')\n\"\nPASS e1\nPASS e2\nPASS e2rt\nPASS d1\nPASS d2\nPASS d3\nPASS d4\nPASS x1\nPASS x2\nALL PASS"
}
],
"is_error": false,
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c \"\nfrom codec import encode, decode\nresults = []\ndef ck(name, cond):\n results.append((name, bool(cond)))\n\nck('e1', encode(['a','b']) == 'a|b')\nck('e2', encode(['a|b','c\\\\\\\\d']) == 'a\\\\\\\\|b|c\\\\\\\\\\\\\\\\d')\nck('e2rt', decode(encode(['a|b','c\\\\\\\\d'])) == ['a|b','c\\\\\\\\d'])\nck('d1', decode('a|b') == ['a','b'])\nck('d2', decode('') == [''])\nck('d3', decode('|') == ['',''])\nck('d4', decode('||') == ['','',''])\nck('x1', decode('a\\\\\\\\|b') == ['a|b'])\nck('x2', decode('a\\\\\\\\\\\\\\\\b') == ['a\\\\\\\\b'])\nok = all(v for _, v in results)\nfor n, v in results:\n print('PASS' if v else 'FAIL', n)\nprint('ALL PASS' if ok else 'SOME FAIL')\n\"",
"exit_code": 0,
"timeout": false,
"metadata": {
"exit_code": 0,
"pid": -1,
"username": "instructor",
"hostname": "workshop-host",
"working_dir": "/private/tmp/odsc-workshop6-v2/ledger-team-t1",
"py_interpreter_path": "/Users/instructor.shah/.cache/uv/archive-v0/cZpGatmgSZEYIeuAv16p4/bin/python",
"prefix": "",
"suffix": "\n[The command completed with exit code 0.]"
},
"full_output_save_dir": "/Users/instructor.shah/.openhands/agent-canvas/dev_conversations/6861ddb66ca44f0eba9f6c5729445fdc/subagents/8803737b34cc4352b68cc9ae51b40f03/observations",
"kind": "TerminalObservation"
},
"action_id": "93553419-4a7d-4508-b273-5b2b6321978f",
"extended_content": [],
"kind": "ObservationEvent"
}Tool request: terminal
{
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c \"\nfrom codec import encode, decode\nresults = []\ndef ck(name, cond):\n results.append((name, bool(cond)))\n\n# unicode\nck('u1', decode(encode(['héllo|wörld'])) == ['héllo|wörld'])\nck('u2', decode(encode(['日本語'])) == ['日本語'])\nck('u3', decode(encode(['\\U0001F600'])) == ['\\U0001F600'])\nck('u4', encode(['\\u2603']) == '\\u2603')\nck('u5', decode('\\u2603') == ['\\u2603'])\n\n# round-trips\nfor F in [['a\\\\\\\\b'], ['a|b|'], ['\\\\\\\\|','|\\\\\\\\'], ['\\\\\\\\'], ['|'], ['a\\\\\\\\|b','x\\\\\\\\\\\\\\\\y'], ['',''], [''], ['\\\\\\\\\\u2603|\\\\\\\\|'], ['héllo',''], ['','x']]:\n ck('rt-'+repr(F), decode(encode(F)) == F)\n\nfor name, v in results:\n print('PASS' if v else 'FAIL', name)\nprint('ALL PASS' if all(v for _, v in results) else 'SOME FAIL')\n\" 2>&1 | grep -v \"^ck\\|^results\\|^for name\\|^ok\\|^from codec\"",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
}Full event evidence
{
"id": "b7c884e2-5c77-46d3-bb22-f35a32a1e72f",
"timestamp": "2026-10-18T20:21:53.828805",
"source": "agent",
"parent_id": "68222893-e001-408a-adf1-877c6fa605e9",
"thought": [],
"reasoning_content": null,
"thinking_blocks": [],
"action": {
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c \"\nfrom codec import encode, decode\nresults = []\ndef ck(name, cond):\n results.append((name, bool(cond)))\n\n# unicode\nck('u1', decode(encode(['héllo|wörld'])) == ['héllo|wörld'])\nck('u2', decode(encode(['日本語'])) == ['日本語'])\nck('u3', decode(encode(['\\U0001F600'])) == ['\\U0001F600'])\nck('u4', encode(['\\u2603']) == '\\u2603')\nck('u5', decode('\\u2603') == ['\\u2603'])\n\n# round-trips\nfor F in [['a\\\\\\\\b'], ['a|b|'], ['\\\\\\\\|','|\\\\\\\\'], ['\\\\\\\\'], ['|'], ['a\\\\\\\\|b','x\\\\\\\\\\\\\\\\y'], ['',''], [''], ['\\\\\\\\\\u2603|\\\\\\\\|'], ['héllo',''], ['','x']]:\n ck('rt-'+repr(F), decode(encode(F)) == F)\n\nfor name, v in results:\n print('PASS' if v else 'FAIL', name)\nprint('ALL PASS' if all(v for _, v in results) else 'SOME FAIL')\n\" 2>&1 | grep -v \"^ck\\|^results\\|^for name\\|^ok\\|^from codec\"",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
},
"tool_name": "terminal",
"tool_call_id": "call_e899346fd47c40878a21238f",
"tool_call": {
"id": "call_e899346fd47c40878a21238f",
"name": "terminal",
"arguments": "{\"command\": \"cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c \\\"\\nfrom codec import encode, decode\\nresults = []\\ndef ck(name, cond):\\n results.append((name, bool(cond)))\\n\\n# unicode\\nck('u1', decode(encode(['h\\u00e9llo|w\\u00f6rld'])) == ['h\\u00e9llo|w\\u00f6rld'])\\nck('u2', decode(encode(['\\u65e5\\u672c\\u8a9e'])) == ['\\u65e5\\u672c\\u8a9e'])\\nck('u3', decode(encode(['\\\\U0001F600'])) == ['\\\\U0001F600'])\\nck('u4', encode(['\\\\u2603']) == '\\\\u2603')\\nck('u5', decode('\\\\u2603') == ['\\\\u2603'])\\n\\n# round-trips\\nfor F in [['a\\\\\\\\\\\\\\\\b'], ['a|b|'], ['\\\\\\\\\\\\\\\\|','|\\\\\\\\\\\\\\\\'], ['\\\\\\\\\\\\\\\\'], ['|'], ['a\\\\\\\\\\\\\\\\|b','x\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\y'], ['',''], [''], ['\\\\\\\\\\\\\\\\\\\\u2603|\\\\\\\\\\\\\\\\|'], ['h\\u00e9llo',''], ['','x']]:\\n ck('rt-'+repr(F), decode(encode(F)) == F)\\n\\nfor name, v in results:\\n print('PASS' if v else 'FAIL', name)\\nprint('ALL PASS' if all(v for _, v in results) else 'SOME FAIL')\\n\\\" 2>&1 | grep -v \\\"^ck\\\\|^results\\\\|^for name\\\\|^ok\\\\|^from codec\\\"\", \"security_risk\": \"LOW\", \"summary\": \"Probe unicode and round-trip behavior\"}",
"origin": "completion"
},
"llm_response_id": "gen-1792372909-quHUG1hhlLwukVxSDPY4",
"security_risk": "UNKNOWN",
"summary": "Probe unicode and round-trip behavior",
"kind": "ActionEvent"
}Tool result: terminal
# unicode
ck('u1', decode(encode(['héllo|wörld'])) == ['héllo|wörld'])
ck('u2', decode(encode(['日本語'])) == ['日本語'])
ck('u3', decode(encode(['\U0001F600'])) == ['\U0001F600'])
ck('u4', encode(['\u2603']) == '\u2603')
ck('u5', decode('\u2603') == ['\u2603'])
# round-trips
for F in [['a\\\\b'], ['a|b|'], ['\\\\|','|\\\\'], ['\\\\'], ['|'], ['a\\\\|b','x\\\\\\\\y'], ['',''], [''], ['\\\\\u2603|\\\\|'], ['héllo',''], ['','x']]:
ck('rt-'+repr(F), decode(encode(F)) == F)
for name, v in results:
print('PASS' if v else 'FAIL', name)
print('ALL PASS' if all(v for _, v in results) else 'SOME FAIL')
" 2>&1 | grep -v "^ck\|^results\|^for name\|^ok\|^from codec"# round-trips
for F in [['a\\\\b'], ['a|b|'], ['\\\\|','|\\\\'], ['\\\\'], ['|'], ['a\\\\|b','x\\\\\\\\y'], ['',''], [''], ['\\\\\u2603|\\\\|'], ['héllo',''], ['','x']]:
ck('rt-'+repr(F), decode(encode(F)) == F)
for name, v in results:
print('PASS' if v else 'FAIL', name)
print('ALL PASS' if all(v for _, v in results) else 'SOME FAIL')
" 2>&1 | grep -v "^ck\|^results\|^for name\|^ok\|^from codec"for name, v in results:
print('PASS' if v else 'FAIL', name)
print('ALL PASS' if all(v for _, v in results) else 'SOME FAIL')
" 2>&1 | grep -v "^ck\|^results\|^for name\|^ok\|^from codec"
PASS u1
PASS u2
PASS u3
PASS u4
PASS u5
PASS rt-['a\\b']
PASS rt-['a|b|']
PASS rt-['\\|', '|\\']
PASS rt-['\\']
PASS rt-['|']
PASS rt-['a\\|b', 'x\\\\y']
PASS rt-['', '']
PASS rt-['']
PASS rt-['\\☃|\\|']
PASS rt-['héllo', '']
PASS rt-['', 'x']
ALL PASSFull event evidence
{
"id": "7097a378-2380-4405-8910-cbb289f139cc",
"timestamp": "2026-10-18T20:21:54.633302",
"source": "environment",
"parent_id": "b7c884e2-5c77-46d3-bb22-f35a32a1e72f",
"tool_name": "terminal",
"tool_call_id": "call_e899346fd47c40878a21238f",
"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "# unicode\nck('u1', decode(encode(['héllo|wörld'])) == ['héllo|wörld'])\nck('u2', decode(encode(['日本語'])) == ['日本語'])\nck('u3', decode(encode(['\\U0001F600'])) == ['\\U0001F600'])\nck('u4', encode(['\\u2603']) == '\\u2603')\nck('u5', decode('\\u2603') == ['\\u2603'])\n\n# round-trips\nfor F in [['a\\\\\\\\b'], ['a|b|'], ['\\\\\\\\|','|\\\\\\\\'], ['\\\\\\\\'], ['|'], ['a\\\\\\\\|b','x\\\\\\\\\\\\\\\\y'], ['',''], [''], ['\\\\\\\\\\u2603|\\\\\\\\|'], ['héllo',''], ['','x']]:\n ck('rt-'+repr(F), decode(encode(F)) == F)\n\nfor name, v in results:\n print('PASS' if v else 'FAIL', name)\nprint('ALL PASS' if all(v for _, v in results) else 'SOME FAIL')\n\" 2>&1 | grep -v \"^ck\\|^results\\|^for name\\|^ok\\|^from codec\"# round-trips\nfor F in [['a\\\\\\\\b'], ['a|b|'], ['\\\\\\\\|','|\\\\\\\\'], ['\\\\\\\\'], ['|'], ['a\\\\\\\\|b','x\\\\\\\\\\\\\\\\y'], ['',''], [''], ['\\\\\\\\\\u2603|\\\\\\\\|'], ['héllo',''], ['','x']]:\n ck('rt-'+repr(F), decode(encode(F)) == F)\n\nfor name, v in results:\n print('PASS' if v else 'FAIL', name)\nprint('ALL PASS' if all(v for _, v in results) else 'SOME FAIL')\n\" 2>&1 | grep -v \"^ck\\|^results\\|^for name\\|^ok\\|^from codec\"for name, v in results:\n print('PASS' if v else 'FAIL', name)\nprint('ALL PASS' if all(v for _, v in results) else 'SOME FAIL')\n\" 2>&1 | grep -v \"^ck\\|^results\\|^for name\\|^ok\\|^from codec\"\nPASS u1\nPASS u2\nPASS u3\nPASS u4\nPASS u5\nPASS rt-['a\\\\b']\nPASS rt-['a|b|']\nPASS rt-['\\\\|', '|\\\\']\nPASS rt-['\\\\']\nPASS rt-['|']\nPASS rt-['a\\\\|b', 'x\\\\\\\\y']\nPASS rt-['', '']\nPASS rt-['']\nPASS rt-['\\\\☃|\\\\|']\nPASS rt-['héllo', '']\nPASS rt-['', 'x']\nALL PASS"
}
],
"is_error": false,
"command": "cd /private/tmp/odsc-workshop6-v2/ledger-team-t1 && PYTHONDONTWRITEBYTECODE=1 python3 -c \"\nfrom codec import encode, decode\nresults = []\ndef ck(name, cond):\n results.append((name, bool(cond)))\n\n# unicode\nck('u1', decode(encode(['héllo|wörld'])) == ['héllo|wörld'])\nck('u2', decode(encode(['日本語'])) == ['日本語'])\nck('u3', decode(encode(['\\U0001F600'])) == ['\\U0001F600'])\nck('u4', encode(['\\u2603']) == '\\u2603')\nck('u5', decode('\\u2603') == ['\\u2603'])\n\n# round-trips\nfor F in [['a\\\\\\\\b'], ['a|b|'], ['\\\\\\\\|','|\\\\\\\\'], ['\\\\\\\\'], ['|'], ['a\\\\\\\\|b','x\\\\\\\\\\\\\\\\y'], ['',''], [''], ['\\\\\\\\\\u2603|\\\\\\\\|'], ['héllo',''], ['','x']]:\n ck('rt-'+repr(F), decode(encode(F)) == F)\n\nfor name, v in results:\n print('PASS' if v else 'FAIL', name)\nprint('ALL PASS' if all(v for _, v in results) else 'SOME FAIL')\n\" 2>&1 | grep -v \"^ck\\|^results\\|^for name\\|^ok\\|^from codec\"",
"exit_code": 0,
"timeout": false,
"metadata": {
"exit_code": 0,
"pid": -1,
"username": "instructor",
"hostname": "workshop-host",
"working_dir": "/private/tmp/odsc-workshop6-v2/ledger-team-t1",
"py_interpreter_path": "/Users/instructor.shah/.cache/uv/archive-v0/cZpGatmgSZEYIeuAv16p4/bin/python",
"prefix": "",
"suffix": "\n[The command completed with exit code 0.]"
},
"full_output_save_dir": "/Users/instructor.shah/.openhands/agent-canvas/dev_conversations/6861ddb66ca44f0eba9f6c5729445fdc/subagents/8803737b34cc4352b68cc9ae51b40f03/observations",
"kind": "TerminalObservation"
},
"action_id": "b7c884e2-5c77-46d3-bb22-f35a32a1e72f",
"extended_content": [],
"kind": "ObservationEvent"
}ConversationErrorEvent
Full event evidence
{
"id": "b751233b-d1dd-4593-9de8-c452657215d0",
"timestamp": "2026-10-18T20:21:54.636775",
"source": "environment",
"parent_id": "7097a378-2380-4405-8910-cbb289f139cc",
"code": "MaxIterationsReached",
"detail": "Agent reached maximum iterations limit (8).",
"classification": {
"kind": "agent_action",
"retryable": false,
"user_action": "none"
},
"kind": "ConversationErrorEvent"
}