# Claude Code v2.1.283: system prompt

> 1 of 23 tool descriptions changed. The appended system-reminder blocks moved: 2 lines added. Compared against v2.1.282.

[Web version](https://changelogs.core-directive.com/prompts/2.1.283?surface=compaction)

## What this version holds
- model strings captured: 1
- tool descriptions: 23
- compared against: v2.1.282
- system prompt edits: 0
- widest system prompt edit: +0/-0 lines
- tool descriptions changed: 1

## What moved

### Tool: Bash (+0/-1 lines)

This edit reached all 1 arms.

```diff
@@ from line 1 @@
 Executes a bash command and returns its output.
 
 - Working directory persists between calls, but prefer absolute paths — `cd` in a compound command can trigger a permission prompt. Shell state (env vars, functions) does not persist; the shell is initialized from the user's profile.
-- IMPORTANT: Avoid using this tool to run `cat`, `head`, `tail`, `sed`, `awk`, or `echo` commands, unless explicitly instructed or after you have verified that a dedicated tool cannot accomplish your task. Instead, use the appropriate dedicated tool as this will provide a much better experience for the user.
 - Command output is displayed to you, not reliably to the user.
 - `timeout` is in milliseconds: default 120000, max 600000.
 - `run_in_background` runs the command detached: it keeps running across turns and re-invokes you when it exits. No `&` needed.
```

## Tool descriptions
- [Agent](https://changelogs.core-directive.com/prompts/2.1.283/tools/Agent.txt?surface=compaction)
- [AskUserQuestion](https://changelogs.core-directive.com/prompts/2.1.283/tools/AskUserQuestion.txt?surface=compaction)
- [Bash](https://changelogs.core-directive.com/prompts/2.1.283/tools/Bash.txt?surface=compaction) (changed in this version)
- [CronCreate](https://changelogs.core-directive.com/prompts/2.1.283/tools/CronCreate.txt?surface=compaction)
- [CronDelete](https://changelogs.core-directive.com/prompts/2.1.283/tools/CronDelete.txt?surface=compaction)
- [CronList](https://changelogs.core-directive.com/prompts/2.1.283/tools/CronList.txt?surface=compaction)
- [Edit](https://changelogs.core-directive.com/prompts/2.1.283/tools/Edit.txt?surface=compaction)
- [EnterPlanMode](https://changelogs.core-directive.com/prompts/2.1.283/tools/EnterPlanMode.txt?surface=compaction)
- [EnterWorktree](https://changelogs.core-directive.com/prompts/2.1.283/tools/EnterWorktree.txt?surface=compaction)
- [ExitPlanMode](https://changelogs.core-directive.com/prompts/2.1.283/tools/ExitPlanMode.txt?surface=compaction)
- [ExitWorktree](https://changelogs.core-directive.com/prompts/2.1.283/tools/ExitWorktree.txt?surface=compaction)
- [ListAgents](https://changelogs.core-directive.com/prompts/2.1.283/tools/ListAgents.txt?surface=compaction)
- [NotebookEdit](https://changelogs.core-directive.com/prompts/2.1.283/tools/NotebookEdit.txt?surface=compaction)
- [Read](https://changelogs.core-directive.com/prompts/2.1.283/tools/Read.txt?surface=compaction)
- [ReportFindings](https://changelogs.core-directive.com/prompts/2.1.283/tools/ReportFindings.txt?surface=compaction)
- [ScheduleWakeup](https://changelogs.core-directive.com/prompts/2.1.283/tools/ScheduleWakeup.txt?surface=compaction)
- [SendMessage](https://changelogs.core-directive.com/prompts/2.1.283/tools/SendMessage.txt?surface=compaction)
- [Skill](https://changelogs.core-directive.com/prompts/2.1.283/tools/Skill.txt?surface=compaction)
- [TaskStop](https://changelogs.core-directive.com/prompts/2.1.283/tools/TaskStop.txt?surface=compaction)
- [WebFetch](https://changelogs.core-directive.com/prompts/2.1.283/tools/WebFetch.txt?surface=compaction)
- [WebSearch](https://changelogs.core-directive.com/prompts/2.1.283/tools/WebSearch.txt?surface=compaction)
- [Workflow](https://changelogs.core-directive.com/prompts/2.1.283/tools/Workflow.txt?surface=compaction)
- [Write](https://changelogs.core-directive.com/prompts/2.1.283/tools/Write.txt?surface=compaction)

## Full text
- [system prompt](https://changelogs.core-directive.com/prompts/2.1.283/system.txt?surface=compaction)