Classroom index | Originals and full outcomes
R11 | ODSC Memory Pilot / agreement-current-t1 / DeepSeek Flash | reserve
Read the full outcome matrix before this selected trace
Context correction: Automatic memory was not disabled. The selected trial-2 conditions share the same ambient user memory and skill listings; only the supplied task notes differ. Historical memory-off wording is not a verified claim. The prompt explicitly permits clarification, and the older draft is marked provisional.
Read-only historical evidence. Original commands are never executed by the archive. Fictional prior-agreement exercise. Missing or draft notes can correctly trigger clarification. Shared ambient context existed despite requested flags. Selection is exploratory; see the full Workshop 3 outcome audit.
ConversationStateUpdateEvent
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"description": "Generate and maintain durable repository documentation for humans and future coding agents. Use when asked to plan, initialize, update, repair, or automate repo docs, including OpenWiki-style docs and optional GitNexus-enriched docs.",
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},
{
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"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",
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{
"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: /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace\nWhen exploring project structure, start with this directory instead of the root filesystem.",
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"destructiveHint": true,
"idempotentHint": false,
"openWorldHint": false
},
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"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",
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"annotations": {
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"readOnlyHint": true,
"destructiveHint": false,
"idempotentHint": true,
"openWorldHint": false
},
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{
"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",
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"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,
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"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",
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}
],
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}You
Work only inside the supplied workspace. Do not access other workspaces, parent directories, network, or user files. Do not install dependencies, commit, or write memory files. Only edit exporter.py and test_exporter.py. Use python3 with PYTHONDONTWRITEBYTECODE=1 for checks. Report changed files, evidence, and any uncertainty. If a necessary prior agreement is missing, ask a specific clarification and stop before guessing it.
Task:
Add a missing-region policy to the CSV exporter for customer Northstar. We agreed the exact missing-value representation and ID compatibility rules in an earlier customer session. That agreement matters for this change. Implement it and add regression tests if you have the agreement; otherwise identify precisely what you need confirmed. The repository does not record the customer-session agreement. Non-missing region values must remain unchanged.
Supplied notes:
Saved customer-session note, 2026-10-17, Northstar export review: Missing region (absent key or None) must be the literal string NA. Keep an existing empty string empty. Preserve customer_id as supplied, including leading zeros: Northstar joins it as a string, not a number. The NA sentinel avoids a legacy importer's blank-field default to US. Customer-session rationale is not yet in repository docs. This note is supplied context, not automatically retrieved memory.
Full event evidence
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"timestamp": "2026-10-18T19:36:02.992842",
"source": "user",
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"llm_message": {
"role": "user",
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "Work only inside the supplied workspace. Do not access other workspaces, parent directories, network, or user files. Do not install dependencies, commit, or write memory files. Only edit exporter.py and test_exporter.py. Use python3 with PYTHONDONTWRITEBYTECODE=1 for checks. Report changed files, evidence, and any uncertainty. If a necessary prior agreement is missing, ask a specific clarification and stop before guessing it.\n\nTask:\nAdd a missing-region policy to the CSV exporter for customer Northstar. We agreed the exact missing-value representation and ID compatibility rules in an earlier customer session. That agreement matters for this change. Implement it and add regression tests if you have the agreement; otherwise identify precisely what you need confirmed. The repository does not record the customer-session agreement. Non-missing region values must remain unchanged.\n\nSupplied notes:\nSaved customer-session note, 2026-10-17, Northstar export review: Missing region (absent key or None) must be the literal string NA. Keep an existing empty string empty. Preserve customer_id as supplied, including leading zeros: Northstar joins it as a string, not a number. The NA sentinel avoids a legacy importer's blank-field default to US. Customer-session rationale is not yet in repository docs. This note is supplied context, not automatically retrieved memory."
}
],
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},
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}ConversationStateUpdateEvent
{
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"source": "environment",
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"kind": "ConversationStateUpdateEvent"
}ConversationStateUpdateEvent
{
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}Tool request: file_editor
{
"command": "view",
"path": "/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace",
"kind": "FileEditorAction"
}Full event evidence
{
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"timestamp": "2026-10-18T19:36:05.657926",
"source": "agent",
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"arguments": "{\"command\": \"view\", \"path\": \"/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace\"}",
"origin": "completion"
},
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"security_risk": "UNKNOWN",
"summary": "file_editor: {\"command\": \"view\", \"path\": \"/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace\"}",
"kind": "ActionEvent"
}Tool request: terminal
{
"command": "find /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace -type f | head -100",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
}Full event evidence
{
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"timestamp": "2026-10-18T19:36:05.666086",
"source": "agent",
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"action": {
"command": "find /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace -type f | head -100",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
},
"tool_name": "terminal",
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"tool_call": {
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"name": "terminal",
"arguments": "{\"command\": \"find /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace -type f | head -100\", \"summary\": \"List all files in the workspace\", \"security_risk\": \"LOW\"}",
"origin": "completion"
},
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"security_risk": "UNKNOWN",
"summary": "List all files in the workspace",
"kind": "ActionEvent"
}Tool result: file_editor
Here's the files and directories up to 2 levels deep in /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace, excluding hidden items:
/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/
/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/README.md
/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/exporter.py
/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py
Full event evidence
{
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"timestamp": "2026-10-18T19:36:05.675839",
"source": "environment",
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"observation": {
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{
"cache_prompt": false,
"type": "text",
"text": "Here's the files and directories up to 2 levels deep in /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace, excluding hidden items:\n/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/\n/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/README.md\n/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/exporter.py\n/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py"
}
],
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"command": "view",
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"prev_exist": true,
"kind": "FileEditorObservation"
},
"action_id": "197c5de7-3784-4b49-829d-8e46900b0571",
"extended_content": [],
"kind": "ObservationEvent"
}Tool result: terminal
/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py
/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/exporter.py
/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/README.md
Full event evidence
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"observation": {
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{
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"type": "text",
"text": "/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py\n/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/exporter.py\n/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/README.md"
}
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Here's the result of running `cat -n` on /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/exporter.py:
1 import csv
2 import io
3
4 def export_rows(rows):
5 stream = io.StringIO(newline="")
6 writer = csv.writer(stream)
7 writer.writerow(["customer_id", "region"])
8 for row in rows:
9 writer.writerow([row["customer_id"], row["region"]])
10 return stream.getvalue()
11Full event evidence
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Here's the result of running `cat -n` on /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py:
1 import unittest
2 from exporter import export_rows
3
4 class ExportTests(unittest.TestCase):
5 def test_header(self):
6 self.assertTrue(export_rows([]).startswith("customer_id,region"))
7
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10Full event evidence
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Here's the result of running `cat -n` on /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/README.md:
1 Northstar CSV exporter. Run: PYTHONDONTWRITEBYTECODE=1 python3 -m unittest -v
2Full event evidence
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test_header (test_exporter.ExportTests.test_header) ... ok
----------------------------------------------------------------------
Ran 1 test in 0.000s
OK
Full event evidence
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"llm_response_id": "gen-1792370200-5vqtCxaGdxqhX5FDCiyj",
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"summary": "file_editor: {\"command\": \"str_replace\", \"path\": \"/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/exporter.py\", \"old_str\": \"import csv\\nimport io\\n\\ndef export_rows(rows):\\n stream = io.StringIO(newline=\\\"\\\")\\n writer = csv.writer(stream)\\n writer.writerow([\\\"customer_id\\\", \\\"region\\\"])\\n for row in rows:\\n writer.writerow([row[\\\"customer_id\\\"], row[\\\"region\\\"]])\\n return stream.getvalue()\", \"new_str\": \"import csv\\nimport io\\n\\nNA_SENTINEL = \\\"NA\\\"\\n\\ndef export_rows(rows):\\n stream = io.StringIO(newline=\\\"\\\")\\n writer = csv.writer(stream)\\n writer.writerow([\\\"customer_id\\\", \\\"region\\\"])\\n for row in rows:\\n region = row.get(\\\"region\\\")\\n if region is None:\\n region = NA_SENTINEL\\n writer.writerow([row[\\\"customer_id\\\"], region])\\n return stream.getvalue()\"}",
"kind": "ActionEvent"
}Tool result: file_editor
The file /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/exporter.py has been edited. Here's the result of running `cat -n` on a snippet of /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/exporter.py:
1 import csv
2 import io
3
4 NA_SENTINEL = "NA"
5
6 def export_rows(rows):
7 stream = io.StringIO(newline="")
8 writer = csv.writer(stream)
9 writer.writerow(["customer_id", "region"])
10 for row in rows:
11 region = row.get("region")
12 if region is None:
13 region = NA_SENTINEL
14 writer.writerow([row["customer_id"], region])
15 return stream.getvalue()
16
Review the changes and make sure they are as expected. Edit the file again if necessary.Full event evidence
{
"id": "683f721c-1ddc-44c5-9293-4cf2a9dc429d",
"timestamp": "2026-10-18T19:36:51.218021",
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"observation": {
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{
"cache_prompt": false,
"type": "text",
"text": "The file /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/exporter.py has been edited. Here's the result of running `cat -n` on a snippet of /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/exporter.py:\n 1\timport csv\n 2\timport io\n 3\t\n 4\tNA_SENTINEL = \"NA\"\n 5\t\n 6\tdef export_rows(rows):\n 7\t stream = io.StringIO(newline=\"\")\n 8\t writer = csv.writer(stream)\n 9\t writer.writerow([\"customer_id\", \"region\"])\n 10\t for row in rows:\n 11\t region = row.get(\"region\")\n 12\t if region is None:\n 13\t region = NA_SENTINEL\n 14\t writer.writerow([row[\"customer_id\"], region])\n 15\t return stream.getvalue()\n 16\t\nReview the changes and make sure they are as expected. Edit the file again if necessary."
}
],
"is_error": false,
"command": "str_replace",
"path": "/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/exporter.py",
"prev_exist": true,
"old_content": "import csv\nimport io\n\ndef export_rows(rows):\n stream = io.StringIO(newline=\"\")\n writer = csv.writer(stream)\n writer.writerow([\"customer_id\", \"region\"])\n for row in rows:\n writer.writerow([row[\"customer_id\"], row[\"region\"]])\n return stream.getvalue()\n",
"new_content": "import csv\nimport io\n\nNA_SENTINEL = \"NA\"\n\ndef export_rows(rows):\n stream = io.StringIO(newline=\"\")\n writer = csv.writer(stream)\n writer.writerow([\"customer_id\", \"region\"])\n for row in rows:\n region = row.get(\"region\")\n if region is None:\n region = NA_SENTINEL\n writer.writerow([row[\"customer_id\"], region])\n return stream.getvalue()\n",
"kind": "FileEditorObservation"
},
"action_id": "07c6a449-7031-4c36-8600-cf0134c95a14",
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"kind": "ObservationEvent"
}ConversationStateUpdateEvent
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"key": "stats",
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}
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}
}
}
},
"kind": "ConversationStateUpdateEvent"
}Tool request: file_editor
{
"command": "str_replace",
"path": "/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py",
"old_str": "import unittest\nfrom exporter import export_rows\n\nclass ExportTests(unittest.TestCase):\n def test_header(self):\n self.assertTrue(export_rows([]).startswith(\"customer_id,region\"))\n\nif __name__ == \"__main__\":\n unittest.main()",
"new_str": "import csv\nimport io\nimport unittest\n\nfrom exporter import export_rows, NA_SENTINEL\n\n\ndef _parse(output):\n return list(csv.reader(io.StringIO(output)))\n\n\nclass ExportTests(unittest.TestCase):\n def test_header(self):\n self.assertTrue(export_rows([]).startswith(\"customer_id,region\"))\n\n def test_missing_region_becomes_na(self):\n output = export_rows([{\"customer_id\": \"007\"}])\n self.assertEqual(_parse(output)[1], [\"007\", \"NA\"])\n\n def test_none_region_becomes_na(self):\n output = export_rows([{\"customer_id\": \"008\", \"region\": None}])\n self.assertEqual(_parse(output)[1], [\"008\", \"NA\"])\n\n def test_empty_region_stays_empty(self):\n output = export_rows([{\"customer_id\": \"009\", \"region\": \"\"}])\n self.assertEqual(_parse(output)[1], [\"009\", \"\"])\n\n def test_present_region_unchanged(self):\n output = export_rows([{\"customer_id\": \"010\", \"region\": \"US\"}])\n self.assertEqual(_parse(output)[1], [\"010\", \"US\"])\n\n def test_customer_id_preserved_with_leading_zeros(self):\n output = export_rows([{\"customer_id\": \"000123\", \"region\": \"EU\"}])\n self.assertEqual(_parse(output)[1], [\"000123\", \"EU\"])\n\n\nif __name__ == \"__main__\":\n unittest.main()",
"kind": "FileEditorAction"
}Full event evidence
{
"id": "17582638-c7cf-4eb9-a7d1-98bf3597ea00",
"timestamp": "2026-10-18T19:36:59.100147",
"source": "agent",
"parent_id": "683f721c-1ddc-44c5-9293-4cf2a9dc429d",
"thought": [],
"reasoning_content": null,
"thinking_blocks": [],
"action": {
"command": "str_replace",
"path": "/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py",
"old_str": "import unittest\nfrom exporter import export_rows\n\nclass ExportTests(unittest.TestCase):\n def test_header(self):\n self.assertTrue(export_rows([]).startswith(\"customer_id,region\"))\n\nif __name__ == \"__main__\":\n unittest.main()",
"new_str": "import csv\nimport io\nimport unittest\n\nfrom exporter import export_rows, NA_SENTINEL\n\n\ndef _parse(output):\n return list(csv.reader(io.StringIO(output)))\n\n\nclass ExportTests(unittest.TestCase):\n def test_header(self):\n self.assertTrue(export_rows([]).startswith(\"customer_id,region\"))\n\n def test_missing_region_becomes_na(self):\n output = export_rows([{\"customer_id\": \"007\"}])\n self.assertEqual(_parse(output)[1], [\"007\", \"NA\"])\n\n def test_none_region_becomes_na(self):\n output = export_rows([{\"customer_id\": \"008\", \"region\": None}])\n self.assertEqual(_parse(output)[1], [\"008\", \"NA\"])\n\n def test_empty_region_stays_empty(self):\n output = export_rows([{\"customer_id\": \"009\", \"region\": \"\"}])\n self.assertEqual(_parse(output)[1], [\"009\", \"\"])\n\n def test_present_region_unchanged(self):\n output = export_rows([{\"customer_id\": \"010\", \"region\": \"US\"}])\n self.assertEqual(_parse(output)[1], [\"010\", \"US\"])\n\n def test_customer_id_preserved_with_leading_zeros(self):\n output = export_rows([{\"customer_id\": \"000123\", \"region\": \"EU\"}])\n self.assertEqual(_parse(output)[1], [\"000123\", \"EU\"])\n\n\nif __name__ == \"__main__\":\n unittest.main()",
"kind": "FileEditorAction"
},
"tool_name": "file_editor",
"tool_call_id": "call_37cd7aa2b1d64d658911788c",
"tool_call": {
"id": "call_37cd7aa2b1d64d658911788c",
"name": "file_editor",
"arguments": "{\"command\": \"str_replace\", \"path\": \"/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py\", \"old_str\": \"import unittest\\nfrom exporter import export_rows\\n\\nclass ExportTests(unittest.TestCase):\\n def test_header(self):\\n self.assertTrue(export_rows([]).startswith(\\\"customer_id,region\\\"))\\n\\nif __name__ == \\\"__main__\\\":\\n unittest.main()\", \"new_str\": \"import csv\\nimport io\\nimport unittest\\n\\nfrom exporter import export_rows, NA_SENTINEL\\n\\n\\ndef _parse(output):\\n return list(csv.reader(io.StringIO(output)))\\n\\n\\nclass ExportTests(unittest.TestCase):\\n def test_header(self):\\n self.assertTrue(export_rows([]).startswith(\\\"customer_id,region\\\"))\\n\\n def test_missing_region_becomes_na(self):\\n output = export_rows([{\\\"customer_id\\\": \\\"007\\\"}])\\n self.assertEqual(_parse(output)[1], [\\\"007\\\", \\\"NA\\\"])\\n\\n def test_none_region_becomes_na(self):\\n output = export_rows([{\\\"customer_id\\\": \\\"008\\\", \\\"region\\\": None}])\\n self.assertEqual(_parse(output)[1], [\\\"008\\\", \\\"NA\\\"])\\n\\n def test_empty_region_stays_empty(self):\\n output = export_rows([{\\\"customer_id\\\": \\\"009\\\", \\\"region\\\": \\\"\\\"}])\\n self.assertEqual(_parse(output)[1], [\\\"009\\\", \\\"\\\"])\\n\\n def test_present_region_unchanged(self):\\n output = export_rows([{\\\"customer_id\\\": \\\"010\\\", \\\"region\\\": \\\"US\\\"}])\\n self.assertEqual(_parse(output)[1], [\\\"010\\\", \\\"US\\\"])\\n\\n def test_customer_id_preserved_with_leading_zeros(self):\\n output = export_rows([{\\\"customer_id\\\": \\\"000123\\\", \\\"region\\\": \\\"EU\\\"}])\\n self.assertEqual(_parse(output)[1], [\\\"000123\\\", \\\"EU\\\"])\\n\\n\\nif __name__ == \\\"__main__\\\":\\n unittest.main()\"}",
"origin": "completion"
},
"llm_response_id": "gen-1792370211-MH2RzYGcqexeHmZl7vbl",
"security_risk": "UNKNOWN",
"summary": "file_editor: {\"command\": \"str_replace\", \"path\": \"/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py\", \"old_str\": \"import unittest\\nfrom exporter import export_rows\\n\\nclass ExportTests(unittest.TestCase):\\n def test_header(self):\\n self.assertTrue(export_rows([]).startswith(\\\"customer_id,region\\\"))\\n\\nif __name__ == \\\"__main__\\\":\\n unittest.main()\", \"new_str\": \"import csv\\nimport io\\nimport unittest\\n\\nfrom exporter import export_rows, NA_SENTINEL\\n\\n\\ndef _parse(output):\\n return list(csv.reader(io.StringIO(output)))\\n\\n\\nclass ExportTests(unittest.TestCase):\\n def test_header(self):\\n self.assertTrue(export_rows([]).startswith(\\\"customer_id,region\\\"))\\n\\n def test_missing_region_becomes_na(self):\\n output = export_rows([{\\\"customer_id\\\": \\\"007\\\"}])\\n self.assertEqual(_parse(output)[1], [\\\"007\\\", \\\"NA\\\"])\\n\\n def test_none_region_becomes_na(self):\\n output = export_rows([{\\\"customer_id\\\": \\\"008\\\", \\\"region\\\": None}])\\n self.assertEqual(_parse(output)[1], [\\\"008\\\", \\\"NA\\\"])\\n\\n def test_empty_region_stays_empty(self):\\n output = export_rows([{\\\"customer_id\\\": \\\"009\\\", \\\"region\\\": \\\"\\\"}])\\n self.assertEqual(_parse(output)[1], [\\\"009\\\", \\\"\\\"])\\n\\n def test_present_region_unchanged(self):\\n output = export_rows([{\\\"customer_id\\\": \\\"010\\\", \\\"region\\\": \\\"US\\\"}])\\n self.assertEqual(_parse(output)[1], [\\\"010\\\", \\\"US\\\"])\\n\\n def test_customer_id_preserved_with_leading_zeros(self):\\n output = export_rows([{\\\"customer_id\\\": \\\"000123\\\", \\\"region\\\": \\\"EU\\\"}])\\n self.assertEqual(_parse(output)[1], [\\\"000123\\\", \\\"EU\\\"])\\n\\n\\nif __name__ == \\\"__main__\\\":\\n unittest.main()\"}",
"kind": "ActionEvent"
}Tool result: file_editor
The file /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py has been edited. Here's the result of running `cat -n` on a snippet of /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py:
1 import csv
2 import io
3 import unittest
4
5 from exporter import export_rows, NA_SENTINEL
6
7
8 def _parse(output):
9 return list(csv.reader(io.StringIO(output)))
10
11
12 class ExportTests(unittest.TestCase):
13 def test_header(self):
14 self.assertTrue(export_rows([]).startswith("customer_id,region"))
15
16 def test_missing_region_becomes_na(self):
17 output = export_rows([{"customer_id": "007"}])
18 self.assertEqual(_parse(output)[1], ["007", "NA"])
19
20 def test_none_region_becomes_na(self):
21 output = export_rows([{"customer_id": "008", "region": None}])
22 self.assertEqual(_parse(output)[1], ["008", "NA"])
23
24 def test_empty_region_stays_empty(self):
25 output = export_rows([{"customer_id": "009", "region": ""}])
26 self.assertEqual(_parse(output)[1], ["009", ""])
27
28 def test_present_region_unchanged(self):
29 output = export_rows([{"customer_id": "010", "region": "US"}])
30 self.assertEqual(_parse(output)[1], ["010", "US"])
31
32 def test_customer_id_preserved_with_leading_zeros(self):
33 output = export_rows([{"customer_id": "000123", "region": "EU"}])
34 self.assertEqual(_parse(output)[1], ["000123", "EU"])
35
36
37 if __name__ == "__main__":
38 unittest.main()
39
Review the changes and make sure they are as expected. Edit the file again if necessary.Full event evidence
{
"id": "c9817c1e-7868-4971-bd07-5d1b18185899",
"timestamp": "2026-10-18T19:36:59.113696",
"source": "environment",
"parent_id": "17582638-c7cf-4eb9-a7d1-98bf3597ea00",
"tool_name": "file_editor",
"tool_call_id": "call_37cd7aa2b1d64d658911788c",
"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "The file /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py has been edited. Here's the result of running `cat -n` on a snippet of /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py:\n 1\timport csv\n 2\timport io\n 3\timport unittest\n 4\t\n 5\tfrom exporter import export_rows, NA_SENTINEL\n 6\t\n 7\t\n 8\tdef _parse(output):\n 9\t return list(csv.reader(io.StringIO(output)))\n 10\t\n 11\t\n 12\tclass ExportTests(unittest.TestCase):\n 13\t def test_header(self):\n 14\t self.assertTrue(export_rows([]).startswith(\"customer_id,region\"))\n 15\t\n 16\t def test_missing_region_becomes_na(self):\n 17\t output = export_rows([{\"customer_id\": \"007\"}])\n 18\t self.assertEqual(_parse(output)[1], [\"007\", \"NA\"])\n 19\t\n 20\t def test_none_region_becomes_na(self):\n 21\t output = export_rows([{\"customer_id\": \"008\", \"region\": None}])\n 22\t self.assertEqual(_parse(output)[1], [\"008\", \"NA\"])\n 23\t\n 24\t def test_empty_region_stays_empty(self):\n 25\t output = export_rows([{\"customer_id\": \"009\", \"region\": \"\"}])\n 26\t self.assertEqual(_parse(output)[1], [\"009\", \"\"])\n 27\t\n 28\t def test_present_region_unchanged(self):\n 29\t output = export_rows([{\"customer_id\": \"010\", \"region\": \"US\"}])\n 30\t self.assertEqual(_parse(output)[1], [\"010\", \"US\"])\n 31\t\n 32\t def test_customer_id_preserved_with_leading_zeros(self):\n 33\t output = export_rows([{\"customer_id\": \"000123\", \"region\": \"EU\"}])\n 34\t self.assertEqual(_parse(output)[1], [\"000123\", \"EU\"])\n 35\t\n 36\t\n 37\tif __name__ == \"__main__\":\n 38\t unittest.main()\n 39\t\nReview the changes and make sure they are as expected. Edit the file again if necessary."
}
],
"is_error": false,
"command": "str_replace",
"path": "/Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py",
"prev_exist": true,
"old_content": "import unittest\nfrom exporter import export_rows\n\nclass ExportTests(unittest.TestCase):\n def test_header(self):\n self.assertTrue(export_rows([]).startswith(\"customer_id,region\"))\n\nif __name__ == \"__main__\":\n unittest.main()\n",
"new_content": "import csv\nimport io\nimport unittest\n\nfrom exporter import export_rows, NA_SENTINEL\n\n\ndef _parse(output):\n return list(csv.reader(io.StringIO(output)))\n\n\nclass ExportTests(unittest.TestCase):\n def test_header(self):\n self.assertTrue(export_rows([]).startswith(\"customer_id,region\"))\n\n def test_missing_region_becomes_na(self):\n output = export_rows([{\"customer_id\": \"007\"}])\n self.assertEqual(_parse(output)[1], [\"007\", \"NA\"])\n\n def test_none_region_becomes_na(self):\n output = export_rows([{\"customer_id\": \"008\", \"region\": None}])\n self.assertEqual(_parse(output)[1], [\"008\", \"NA\"])\n\n def test_empty_region_stays_empty(self):\n output = export_rows([{\"customer_id\": \"009\", \"region\": \"\"}])\n self.assertEqual(_parse(output)[1], [\"009\", \"\"])\n\n def test_present_region_unchanged(self):\n output = export_rows([{\"customer_id\": \"010\", \"region\": \"US\"}])\n self.assertEqual(_parse(output)[1], [\"010\", \"US\"])\n\n def test_customer_id_preserved_with_leading_zeros(self):\n output = export_rows([{\"customer_id\": \"000123\", \"region\": \"EU\"}])\n self.assertEqual(_parse(output)[1], [\"000123\", \"EU\"])\n\n\nif __name__ == \"__main__\":\n unittest.main()\n",
"kind": "FileEditorObservation"
},
"action_id": "17582638-c7cf-4eb9-a7d1-98bf3597ea00",
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}ConversationStateUpdateEvent
{
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"source": "environment",
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}Tool request: terminal
{
"command": "cd /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace && PYTHONDONTWRITEBYTECODE=1 python3 -m unittest -v 2>&1",
"is_input": false,
"reset": false,
"kind": "TerminalAction"
}Full event evidence
{
"id": "46bf4150-d983-4408-8fb6-e5de702dbf3c",
"timestamp": "2026-10-18T19:37:01.364223",
"source": "agent",
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"security_risk": "UNKNOWN",
"summary": "Run test suite after implementing changes",
"kind": "ActionEvent"
}Tool result: terminal
test_customer_id_preserved_with_leading_zeros (test_exporter.ExportTests.test_customer_id_preserved_with_leading_zeros) ... ok
test_empty_region_stays_empty (test_exporter.ExportTests.test_empty_region_stays_empty) ... ok
test_header (test_exporter.ExportTests.test_header) ... ok
test_missing_region_becomes_na (test_exporter.ExportTests.test_missing_region_becomes_na) ... ok
test_none_region_becomes_na (test_exporter.ExportTests.test_none_region_becomes_na) ... ok
test_present_region_unchanged (test_exporter.ExportTests.test_present_region_unchanged) ... ok
----------------------------------------------------------------------
Ran 6 tests in 0.000s
OK
Full event evidence
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}
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The file /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py has been edited. Here's the result of running `cat -n` on a snippet of /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py:
2 import io
3 import unittest
4
5 from exporter import export_rows
6
7
8 def _parse(output):
9 return list(csv.reader(io.StringIO(output)))
10
Review the changes and make sure they are as expected. Edit the file again if necessary.Full event evidence
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Here's the result of running `cat -n` on /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py:
1 import csv
2 import io
3 import unittest
4
5 from exporter import export_rows
6
7
8 def _parse(output):
9 return list(csv.reader(io.StringIO(output)))
10
11
12 class ExportTests(unittest.TestCase):
13 def test_header(self):
14 self.assertTrue(export_rows([]).startswith("customer_id,region"))
15
16 def test_missing_region_becomes_na(self):
17 output = export_rows([{"customer_id": "007"}])
18 self.assertEqual(_parse(output)[1], ["007", "NA"])
19
20 def test_none_region_becomes_na(self):
21 output = export_rows([{"customer_id": "008", "region": None}])
22 self.assertEqual(_parse(output)[1], ["008", "NA"])
23
24 def test_empty_region_stays_empty(self):
25 output = export_rows([{"customer_id": "009", "region": ""}])
26 self.assertEqual(_parse(output)[1], ["009", ""])
27
28 def test_present_region_unchanged(self):
29 output = export_rows([{"customer_id": "010", "region": "US"}])
30 self.assertEqual(_parse(output)[1], ["010", "US"])
31
32 def test_customer_id_preserved_with_leading_zeros(self):
33 output = export_rows([{"customer_id": "000123", "region": "EU"}])
34 self.assertEqual(_parse(output)[1], ["000123", "EU"])
35
36
37 if __name__ == "__main__":
38 unittest.main()
39Full event evidence
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{
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"text": "Here's the result of running `cat -n` on /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/test_exporter.py:\n 1\timport csv\n 2\timport io\n 3\timport unittest\n 4\t\n 5\tfrom exporter import export_rows\n 6\t\n 7\t\n 8\tdef _parse(output):\n 9\t return list(csv.reader(io.StringIO(output)))\n 10\t\n 11\t\n 12\tclass ExportTests(unittest.TestCase):\n 13\t def test_header(self):\n 14\t self.assertTrue(export_rows([]).startswith(\"customer_id,region\"))\n 15\t\n 16\t def test_missing_region_becomes_na(self):\n 17\t output = export_rows([{\"customer_id\": \"007\"}])\n 18\t self.assertEqual(_parse(output)[1], [\"007\", \"NA\"])\n 19\t\n 20\t def test_none_region_becomes_na(self):\n 21\t output = export_rows([{\"customer_id\": \"008\", \"region\": None}])\n 22\t self.assertEqual(_parse(output)[1], [\"008\", \"NA\"])\n 23\t\n 24\t def test_empty_region_stays_empty(self):\n 25\t output = export_rows([{\"customer_id\": \"009\", \"region\": \"\"}])\n 26\t self.assertEqual(_parse(output)[1], [\"009\", \"\"])\n 27\t\n 28\t def test_present_region_unchanged(self):\n 29\t output = export_rows([{\"customer_id\": \"010\", \"region\": \"US\"}])\n 30\t self.assertEqual(_parse(output)[1], [\"010\", \"US\"])\n 31\t\n 32\t def test_customer_id_preserved_with_leading_zeros(self):\n 33\t output = export_rows([{\"customer_id\": \"000123\", \"region\": \"EU\"}])\n 34\t self.assertEqual(_parse(output)[1], [\"000123\", \"EU\"])\n 35\t\n 36\t\n 37\tif __name__ == \"__main__\":\n 38\t unittest.main()\n 39\t\n"
}
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Here's the result of running `cat -n` on /Users/instructor/Code/harness-engineering/outputs/odsc-memory-redesign-20261018/runs/agreement-current-t1/workspace/exporter.py:
1 import csv
2 import io
3
4 NA_SENTINEL = "NA"
5
6 def export_rows(rows):
7 stream = io.StringIO(newline="")
8 writer = csv.writer(stream)
9 writer.writerow(["customer_id", "region"])
10 for row in rows:
11 region = row.get("region")
12 if region is None:
13 region = NA_SENTINEL
14 writer.writerow([row["customer_id"], region])
15 return stream.getvalue()
16Full event evidence
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test_customer_id_preserved_with_leading_zeros (test_exporter.ExportTests.test_customer_id_preserved_with_leading_zeros) ... ok
test_empty_region_stays_empty (test_exporter.ExportTests.test_empty_region_stays_empty) ... ok
test_header (test_exporter.ExportTests.test_header) ... ok
test_missing_region_becomes_na (test_exporter.ExportTests.test_missing_region_becomes_na) ... ok
test_none_region_becomes_na (test_exporter.ExportTests.test_none_region_becomes_na) ... ok
test_present_region_unchanged (test_exporter.ExportTests.test_present_region_unchanged) ... ok
----------------------------------------------------------------------
Ran 6 tests in 0.000s
OK
--- direct check ---
customer_id,region
000001,NA
000002,NA
000003,
000004,US
Full event evidence
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}
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Done. The prior agreement was included in the task's supplied notes (customer-session note dated 2026-10-17), so I implemented against it rather than guessing.
## Changed files (only these two)
- `exporter.py` — added `NA_SENTINEL = "NA"` and switched region handling to `row.get("region")` (handles absent key) with `None → "NA"` conversion. Non-missing values, including empty strings, pass through unchanged; `customer_id` is written exactly as supplied (string, leading zeros preserved).
- `test_exporter.py` — added 5 regression tests covering the agreed rules:
- missing region key → `NA`
- `None` region → `NA`
- empty string region → stays empty
- present region → unchanged
- `customer_id` preserved with leading zeros
## Evidence
- Baseline (`unittest`) passed before changes: 1 test OK.
- After changes: **6 tests run, OK** (`PYTHONDONTWRITEBYTECODE=1 python3 -m unittest -v`).
- Direct output check for the four region cases:
```
customer_id,region
000001,NA
000002,NA
000003,
000004,US
```
## Uncertainty / notes
- The agreement docs are not in the repository — I relied on the supplied customer-session note. If you want this durable, consider adding the rationale (NA avoids a legacy importer's blank-field default to US) to repo docs; I did not add docs since the task limited edits to `exporter.py` and `test_exporter.py`.
- `None` and absent key both map to `NA` per the note ("absent key or None"). Empty string is distinct and preserved, per the same note.
- The one edge case the note doesn't spell out: a whitespace-only region (e.g., `" "`) — I left it unchanged like any non-missing value; treat it as a real value. No other files were touched, nothing was committed, and nothing was written to memory.Full event evidence
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"text": "Done. The prior agreement was included in the task's supplied notes (customer-session note dated 2026-10-17), so I implemented against it rather than guessing.\n\n## Changed files (only these two)\n- `exporter.py` — added `NA_SENTINEL = \"NA\"` and switched region handling to `row.get(\"region\")` (handles absent key) with `None → \"NA\"` conversion. Non-missing values, including empty strings, pass through unchanged; `customer_id` is written exactly as supplied (string, leading zeros preserved).\n- `test_exporter.py` — added 5 regression tests covering the agreed rules:\n - missing region key → `NA`\n - `None` region → `NA`\n - empty string region → stays empty\n - present region → unchanged\n - `customer_id` preserved with leading zeros\n\n## Evidence\n- Baseline (`unittest`) passed before changes: 1 test OK.\n- After changes: **6 tests run, OK** (`PYTHONDONTWRITEBYTECODE=1 python3 -m unittest -v`).\n- Direct output check for the four region cases:\n ```\n customer_id,region\n 000001,NA\n 000002,NA\n 000003,\n 000004,US\n ```\n\n## Uncertainty / notes\n- The agreement docs are not in the repository — I relied on the supplied customer-session note. If you want this durable, consider adding the rationale (NA avoids a legacy importer's blank-field default to US) to repo docs; I did not add docs since the task limited edits to `exporter.py` and `test_exporter.py`.\n- `None` and absent key both map to `NA` per the note (\"absent key or None\"). Empty string is distinct and preserved, per the same note.\n- The one edge case the note doesn't spell out: a whitespace-only region (e.g., `\" \"`) — I left it unchanged like any non-missing value; treat it as a real value. No other files were touched, nothing was committed, and nothing was written to memory."
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