# Claude Code v2.1.285: system prompt

> 1 of 20 tool descriptions changed. 1 of 20 tool schemas changed. The appended system-reminder blocks moved: 3 lines added, 1 line removed. Compared against v2.1.284.

[Web version](https://changelogs.core-directive.com/prompts/2.1.285?surface=command-team-onboarding)

## What this version holds
- model strings captured: 1
- tool descriptions: 20
- compared against: v2.1.284
- system prompt edits: 0
- widest system prompt edit: +0/-0 lines
- tool descriptions changed: 1

## What moved

### Tool: Bash (+2/-3 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.
+- `timeout` is in milliseconds: default 120000, max 600000 for a foreground command.
+- `run_in_background` runs the command detached: it keeps running across turns and re-invokes you when it exits. With it, `timeout` is how long the command may run in the background (default 1800000, max 7200000); at that limit it is stopped and you are re-invoked. No `&` needed.
 
 # Git
 - Interactive flags (`-i`, e.g. `git rebase -i`, `git add -i`) are not supported in this environment.
```

## Tool descriptions
- [Agent](https://changelogs.core-directive.com/prompts/2.1.285/tools/Agent.txt?surface=command-team-onboarding)
- [Bash](https://changelogs.core-directive.com/prompts/2.1.285/tools/Bash.txt?surface=command-team-onboarding) (changed in this version)
- [CronCreate](https://changelogs.core-directive.com/prompts/2.1.285/tools/CronCreate.txt?surface=command-team-onboarding)
- [CronDelete](https://changelogs.core-directive.com/prompts/2.1.285/tools/CronDelete.txt?surface=command-team-onboarding)
- [CronList](https://changelogs.core-directive.com/prompts/2.1.285/tools/CronList.txt?surface=command-team-onboarding)
- [Edit](https://changelogs.core-directive.com/prompts/2.1.285/tools/Edit.txt?surface=command-team-onboarding)
- [EnterWorktree](https://changelogs.core-directive.com/prompts/2.1.285/tools/EnterWorktree.txt?surface=command-team-onboarding)
- [ExitWorktree](https://changelogs.core-directive.com/prompts/2.1.285/tools/ExitWorktree.txt?surface=command-team-onboarding)
- [ListAgents](https://changelogs.core-directive.com/prompts/2.1.285/tools/ListAgents.txt?surface=command-team-onboarding)
- [NotebookEdit](https://changelogs.core-directive.com/prompts/2.1.285/tools/NotebookEdit.txt?surface=command-team-onboarding)
- [Read](https://changelogs.core-directive.com/prompts/2.1.285/tools/Read.txt?surface=command-team-onboarding)
- [ReportFindings](https://changelogs.core-directive.com/prompts/2.1.285/tools/ReportFindings.txt?surface=command-team-onboarding)
- [ScheduleWakeup](https://changelogs.core-directive.com/prompts/2.1.285/tools/ScheduleWakeup.txt?surface=command-team-onboarding)
- [SendMessage](https://changelogs.core-directive.com/prompts/2.1.285/tools/SendMessage.txt?surface=command-team-onboarding)
- [Skill](https://changelogs.core-directive.com/prompts/2.1.285/tools/Skill.txt?surface=command-team-onboarding)
- [TaskStop](https://changelogs.core-directive.com/prompts/2.1.285/tools/TaskStop.txt?surface=command-team-onboarding)
- [WebFetch](https://changelogs.core-directive.com/prompts/2.1.285/tools/WebFetch.txt?surface=command-team-onboarding)
- [WebSearch](https://changelogs.core-directive.com/prompts/2.1.285/tools/WebSearch.txt?surface=command-team-onboarding)
- [Workflow](https://changelogs.core-directive.com/prompts/2.1.285/tools/Workflow.txt?surface=command-team-onboarding)
- [Write](https://changelogs.core-directive.com/prompts/2.1.285/tools/Write.txt?surface=command-team-onboarding)

## Full text
- [system prompt](https://changelogs.core-directive.com/prompts/2.1.285/system.txt?surface=command-team-onboarding)