# Claude Code v2.1.239: system prompt

> 1 of 27 tool descriptions changed. Compared against v2.1.238.

Web version: https://changelogs.core-directive.com/prompts/2.1.239?arm=sdk-cli&config=flags-anon

## What this version holds
- model strings captured: 27
- tool descriptions: 27
- compared against: v2.1.238
- system prompt edits: 0
- widest system prompt edit: +0/-0 lines
- tool descriptions changed: 1

## What moved

### Tool: ListAgents (+1/-1 lines)

This edit reached all 27 arms.

```diff
@@ from line 1 @@
-Lists agents you can SendMessage to — in-process subagents you spawned, other local Claude sessions on this machine, your Claude sessions running in the cloud (when this session has cloud access; a cloud session receives your message but cannot message any session back yet — do not ask it to reply, read its answer in its own transcript), and (when Remote Control is connected here) your account's other sessions — Remote Control sessions on other machines and cloud sessions, each row labeled by kind. Names are the address: send with `SendMessage({to: "<name>", message: "..."})`, copying the name exactly as a row prints it. Append a row's ` [ref]` only when the bare name is not enough — two rows share it, or an error asks you to disambiguate.
+Lists agents you can SendMessage to — in-process subagents you spawned, the teammates on your team, other local Claude sessions on this machine, your Claude sessions running in the cloud (when this session has cloud access; a cloud session receives your message but cannot message any session back yet — do not ask it to reply, read its answer in its own transcript), and (when Remote Control is connected here) your account's other sessions — Remote Control sessions on other machines and cloud sessions, each row labeled by kind. Names are the address: send with `SendMessage({to: "<name>", message: "..."})`, copying the name exactly as a row prints it. Append a row's ` [ref]` only when the bare name is not enough — two rows share it, or an error asks you to disambiguate.
```

## Tool descriptions
- Agent: https://changelogs.core-directive.com/prompts/2.1.239/tools/Agent.txt?arm=sdk-cli&config=flags-anon
- Bash: https://changelogs.core-directive.com/prompts/2.1.239/tools/Bash.txt?arm=sdk-cli&config=flags-anon
- CronCreate: https://changelogs.core-directive.com/prompts/2.1.239/tools/CronCreate.txt?arm=sdk-cli&config=flags-anon
- CronDelete: https://changelogs.core-directive.com/prompts/2.1.239/tools/CronDelete.txt?arm=sdk-cli&config=flags-anon
- CronList: https://changelogs.core-directive.com/prompts/2.1.239/tools/CronList.txt?arm=sdk-cli&config=flags-anon
- Edit: https://changelogs.core-directive.com/prompts/2.1.239/tools/Edit.txt?arm=sdk-cli&config=flags-anon
- EnterWorktree: https://changelogs.core-directive.com/prompts/2.1.239/tools/EnterWorktree.txt?arm=sdk-cli&config=flags-anon
- ExitWorktree: https://changelogs.core-directive.com/prompts/2.1.239/tools/ExitWorktree.txt?arm=sdk-cli&config=flags-anon
- ListAgents (changed in this version): https://changelogs.core-directive.com/prompts/2.1.239/tools/ListAgents.txt?arm=sdk-cli&config=flags-anon
- Monitor: https://changelogs.core-directive.com/prompts/2.1.239/tools/Monitor.txt?arm=sdk-cli&config=flags-anon
- NotebookEdit: https://changelogs.core-directive.com/prompts/2.1.239/tools/NotebookEdit.txt?arm=sdk-cli&config=flags-anon
- PushNotification: https://changelogs.core-directive.com/prompts/2.1.239/tools/PushNotification.txt?arm=sdk-cli&config=flags-anon
- Read: https://changelogs.core-directive.com/prompts/2.1.239/tools/Read.txt?arm=sdk-cli&config=flags-anon
- ReportFindings: https://changelogs.core-directive.com/prompts/2.1.239/tools/ReportFindings.txt?arm=sdk-cli&config=flags-anon
- ScheduleWakeup: https://changelogs.core-directive.com/prompts/2.1.239/tools/ScheduleWakeup.txt?arm=sdk-cli&config=flags-anon
- SendMessage: https://changelogs.core-directive.com/prompts/2.1.239/tools/SendMessage.txt?arm=sdk-cli&config=flags-anon
- Skill: https://changelogs.core-directive.com/prompts/2.1.239/tools/Skill.txt?arm=sdk-cli&config=flags-anon
- TaskCreate: https://changelogs.core-directive.com/prompts/2.1.239/tools/TaskCreate.txt?arm=sdk-cli&config=flags-anon
- TaskGet: https://changelogs.core-directive.com/prompts/2.1.239/tools/TaskGet.txt?arm=sdk-cli&config=flags-anon
- TaskList: https://changelogs.core-directive.com/prompts/2.1.239/tools/TaskList.txt?arm=sdk-cli&config=flags-anon
- TaskOutput: https://changelogs.core-directive.com/prompts/2.1.239/tools/TaskOutput.txt?arm=sdk-cli&config=flags-anon
- TaskStop: https://changelogs.core-directive.com/prompts/2.1.239/tools/TaskStop.txt?arm=sdk-cli&config=flags-anon
- TaskUpdate: https://changelogs.core-directive.com/prompts/2.1.239/tools/TaskUpdate.txt?arm=sdk-cli&config=flags-anon
- WebFetch: https://changelogs.core-directive.com/prompts/2.1.239/tools/WebFetch.txt?arm=sdk-cli&config=flags-anon
- WebSearch: https://changelogs.core-directive.com/prompts/2.1.239/tools/WebSearch.txt?arm=sdk-cli&config=flags-anon
- Workflow: https://changelogs.core-directive.com/prompts/2.1.239/tools/Workflow.txt?arm=sdk-cli&config=flags-anon
- Write: https://changelogs.core-directive.com/prompts/2.1.239/tools/Write.txt?arm=sdk-cli&config=flags-anon

## Full text
- system prompt: https://changelogs.core-directive.com/prompts/2.1.239/system.txt?arm=sdk-cli&config=flags-anon