# Claude Code v2.1.162: system prompt

> 1 of 25 tool descriptions changed. Compared against v2.1.161.

Web version: https://changelogs.core-directive.com/prompts/2.1.162?arm=cli

## What this version holds
- model strings captured: 27
- tool descriptions: 25
- compared against: v2.1.161
- system prompt edits: 0
- widest system prompt edit: +0/-0 lines
- tool descriptions changed: 1

## What moved

### Tool: NotebookEdit (+7/-1 lines)

This edit reached all 27 arms.

```diff
@@ from line 1 @@
-Completely replaces the contents of a specific cell in a Jupyter notebook (.ipynb file) with new source. Jupyter notebooks are interactive documents that combine code, text, and visualizations, commonly used for data analysis and scientific computing. The notebook_path parameter must be an absolute path, not a relative path. The cell_number is 0-indexed. Use edit_mode=insert to add a new cell at the index specified by cell_number. Use edit_mode=delete to delete the cell at the index specified by cell_number.
+Replaces, inserts, or deletes a single cell in a Jupyter notebook (.ipynb file).
+
+Usage:
+- You must use the Read tool on the notebook in this conversation before editing — this tool will fail otherwise.
+- `notebook_path` must be an absolute path.
+- `cell_id` is the `id` attribute shown in the Read tool's `<cell id="...">` output. It is required for `replace` and `delete`.
+- `edit_mode` defaults to `replace`. Use `insert` to add a new cell after the cell with the given `cell_id` (or at the beginning of the notebook if `cell_id` is omitted) — `cell_type` is required when inserting. Use `delete` to remove the cell.
```

## Tool descriptions
- Agent: https://changelogs.core-directive.com/prompts/2.1.162/tools/Agent.txt?arm=cli
- AskUserQuestion: https://changelogs.core-directive.com/prompts/2.1.162/tools/AskUserQuestion.txt?arm=cli
- Bash: https://changelogs.core-directive.com/prompts/2.1.162/tools/Bash.txt?arm=cli
- CronCreate: https://changelogs.core-directive.com/prompts/2.1.162/tools/CronCreate.txt?arm=cli
- CronDelete: https://changelogs.core-directive.com/prompts/2.1.162/tools/CronDelete.txt?arm=cli
- CronList: https://changelogs.core-directive.com/prompts/2.1.162/tools/CronList.txt?arm=cli
- Edit: https://changelogs.core-directive.com/prompts/2.1.162/tools/Edit.txt?arm=cli
- EnterPlanMode: https://changelogs.core-directive.com/prompts/2.1.162/tools/EnterPlanMode.txt?arm=cli
- EnterWorktree: https://changelogs.core-directive.com/prompts/2.1.162/tools/EnterWorktree.txt?arm=cli
- ExitPlanMode: https://changelogs.core-directive.com/prompts/2.1.162/tools/ExitPlanMode.txt?arm=cli
- ExitWorktree: https://changelogs.core-directive.com/prompts/2.1.162/tools/ExitWorktree.txt?arm=cli
- NotebookEdit (changed in this version): https://changelogs.core-directive.com/prompts/2.1.162/tools/NotebookEdit.txt?arm=cli
- Read: https://changelogs.core-directive.com/prompts/2.1.162/tools/Read.txt?arm=cli
- ScheduleWakeup: https://changelogs.core-directive.com/prompts/2.1.162/tools/ScheduleWakeup.txt?arm=cli
- Skill: https://changelogs.core-directive.com/prompts/2.1.162/tools/Skill.txt?arm=cli
- TaskCreate: https://changelogs.core-directive.com/prompts/2.1.162/tools/TaskCreate.txt?arm=cli
- TaskGet: https://changelogs.core-directive.com/prompts/2.1.162/tools/TaskGet.txt?arm=cli
- TaskList: https://changelogs.core-directive.com/prompts/2.1.162/tools/TaskList.txt?arm=cli
- TaskOutput: https://changelogs.core-directive.com/prompts/2.1.162/tools/TaskOutput.txt?arm=cli
- TaskStop: https://changelogs.core-directive.com/prompts/2.1.162/tools/TaskStop.txt?arm=cli
- TaskUpdate: https://changelogs.core-directive.com/prompts/2.1.162/tools/TaskUpdate.txt?arm=cli
- WebFetch: https://changelogs.core-directive.com/prompts/2.1.162/tools/WebFetch.txt?arm=cli
- WebSearch: https://changelogs.core-directive.com/prompts/2.1.162/tools/WebSearch.txt?arm=cli
- Workflow: https://changelogs.core-directive.com/prompts/2.1.162/tools/Workflow.txt?arm=cli
- Write: https://changelogs.core-directive.com/prompts/2.1.162/tools/Write.txt?arm=cli

## Full text
- system prompt: https://changelogs.core-directive.com/prompts/2.1.162/system.txt?arm=cli