# Claude Code v2.1.263: system prompt

> 1 prompt changed. 1 prompt disappeared. 1 of 28 tool descriptions changed.

Web version: https://changelogs.core-directive.com/prompts/2.1.263?arm=cli

## What this version holds
- model strings captured: 17
- tool descriptions: 28
- compared against: v2.1.261
- system prompt edits: 0
- widest system prompt edit: +0/-0 lines
- tool descriptions changed: 0

- model strings gone since v2.1.261: (unset), claude-fable-5, claude-haiku-4-5, claude-mythos-5, claude-opus-4-7, claude-opus-4-8, claude-opus-5, claude-opus-5[1m], claude-sonnet-5, claude-sonnet-5[1m]

## Tool descriptions
- Agent: https://changelogs.core-directive.com/prompts/2.1.263/tools/Agent.txt?arm=cli
- AskUserQuestion: https://changelogs.core-directive.com/prompts/2.1.263/tools/AskUserQuestion.txt?arm=cli
- Bash: https://changelogs.core-directive.com/prompts/2.1.263/tools/Bash.txt?arm=cli
- CronCreate: https://changelogs.core-directive.com/prompts/2.1.263/tools/CronCreate.txt?arm=cli
- CronDelete: https://changelogs.core-directive.com/prompts/2.1.263/tools/CronDelete.txt?arm=cli
- CronList: https://changelogs.core-directive.com/prompts/2.1.263/tools/CronList.txt?arm=cli
- Edit: https://changelogs.core-directive.com/prompts/2.1.263/tools/Edit.txt?arm=cli
- EnterPlanMode: https://changelogs.core-directive.com/prompts/2.1.263/tools/EnterPlanMode.txt?arm=cli
- EnterWorktree: https://changelogs.core-directive.com/prompts/2.1.263/tools/EnterWorktree.txt?arm=cli
- ExitPlanMode: https://changelogs.core-directive.com/prompts/2.1.263/tools/ExitPlanMode.txt?arm=cli
- ExitWorktree: https://changelogs.core-directive.com/prompts/2.1.263/tools/ExitWorktree.txt?arm=cli
- ListAgents: https://changelogs.core-directive.com/prompts/2.1.263/tools/ListAgents.txt?arm=cli
- NotebookEdit: https://changelogs.core-directive.com/prompts/2.1.263/tools/NotebookEdit.txt?arm=cli
- Read: https://changelogs.core-directive.com/prompts/2.1.263/tools/Read.txt?arm=cli
- ReportFindings: https://changelogs.core-directive.com/prompts/2.1.263/tools/ReportFindings.txt?arm=cli
- ScheduleWakeup: https://changelogs.core-directive.com/prompts/2.1.263/tools/ScheduleWakeup.txt?arm=cli
- SendMessage: https://changelogs.core-directive.com/prompts/2.1.263/tools/SendMessage.txt?arm=cli
- Skill: https://changelogs.core-directive.com/prompts/2.1.263/tools/Skill.txt?arm=cli
- TaskCreate: https://changelogs.core-directive.com/prompts/2.1.263/tools/TaskCreate.txt?arm=cli
- TaskGet: https://changelogs.core-directive.com/prompts/2.1.263/tools/TaskGet.txt?arm=cli
- TaskList: https://changelogs.core-directive.com/prompts/2.1.263/tools/TaskList.txt?arm=cli
- TaskOutput: https://changelogs.core-directive.com/prompts/2.1.263/tools/TaskOutput.txt?arm=cli
- TaskStop: https://changelogs.core-directive.com/prompts/2.1.263/tools/TaskStop.txt?arm=cli
- TaskUpdate: https://changelogs.core-directive.com/prompts/2.1.263/tools/TaskUpdate.txt?arm=cli
- WebFetch: https://changelogs.core-directive.com/prompts/2.1.263/tools/WebFetch.txt?arm=cli
- WebSearch: https://changelogs.core-directive.com/prompts/2.1.263/tools/WebSearch.txt?arm=cli
- Workflow: https://changelogs.core-directive.com/prompts/2.1.263/tools/Workflow.txt?arm=cli
- Write: https://changelogs.core-directive.com/prompts/2.1.263/tools/Write.txt?arm=cli

## Full text
- system prompt: https://changelogs.core-directive.com/prompts/2.1.263/system.txt?arm=cli