# Claude Code v2.1.242: system prompt

> 1 of 27 tool descriptions changed. Compared against v2.1.241.

Web version: https://changelogs.core-directive.com/prompts/2.1.242?arm=cli

## What this version holds
- model strings captured: 27
- tool descriptions: 27
- compared against: v2.1.241
- system prompt edits: 0
- widest system prompt edit: +0/-0 lines
- tool descriptions changed: 1

## What moved

### Tool: ScheduleWakeup (+2/-0 lines)

This edit reached all 27 arms.

```diff
@@ from line 4 @@
 
 Pass the same /loop prompt back via `prompt` each turn so the next firing repeats the task. For an autonomous /loop (no user prompt), pass the literal sentinel `<<autonomous-loop-dynamic>>` as `prompt` instead — the runtime resolves it back to the autonomous-loop instructions at fire time. (There is a similar `<<autonomous-loop>>` sentinel for CronCreate-based autonomous loops; do not confuse the two — ScheduleWakeup always uses the `-dynamic` variant.) To end the loop, call this tool with `stop: true` (omit every other field) — the loop ends immediately and no further wakeups fire.
 
+Set `noop: true` if nothing changed — you checked and there's nothing to report ("no change", "still waiting", "quiet hold"). Set `noop: false` if something happened worth keeping — you edited a file, posted a message, advanced state, or surfaced a finding. Consecutive `noop: true` ticks are collapsed in the user's terminal view and tracked as a streak, so long quiet holds stay legible to the user without scrolling. Omit `noop` when stopping (`stop: true`).
+
 ## Picking delaySeconds
 
 This session's requests use the default 5-minute Anthropic prompt-cache TTL. Sleeping past 300 seconds means the next wake-up reads your full conversation context uncached — slower and more expensive. So the natural breakpoints:
```

## Tool descriptions
- Agent: https://changelogs.core-directive.com/prompts/2.1.242/tools/Agent.txt?arm=cli
- AskUserQuestion: https://changelogs.core-directive.com/prompts/2.1.242/tools/AskUserQuestion.txt?arm=cli
- Bash: https://changelogs.core-directive.com/prompts/2.1.242/tools/Bash.txt?arm=cli
- CronCreate: https://changelogs.core-directive.com/prompts/2.1.242/tools/CronCreate.txt?arm=cli
- CronDelete: https://changelogs.core-directive.com/prompts/2.1.242/tools/CronDelete.txt?arm=cli
- CronList: https://changelogs.core-directive.com/prompts/2.1.242/tools/CronList.txt?arm=cli
- Edit: https://changelogs.core-directive.com/prompts/2.1.242/tools/Edit.txt?arm=cli
- EnterPlanMode: https://changelogs.core-directive.com/prompts/2.1.242/tools/EnterPlanMode.txt?arm=cli
- EnterWorktree: https://changelogs.core-directive.com/prompts/2.1.242/tools/EnterWorktree.txt?arm=cli
- ExitPlanMode: https://changelogs.core-directive.com/prompts/2.1.242/tools/ExitPlanMode.txt?arm=cli
- ExitWorktree: https://changelogs.core-directive.com/prompts/2.1.242/tools/ExitWorktree.txt?arm=cli
- NotebookEdit: https://changelogs.core-directive.com/prompts/2.1.242/tools/NotebookEdit.txt?arm=cli
- Read: https://changelogs.core-directive.com/prompts/2.1.242/tools/Read.txt?arm=cli
- ReportFindings: https://changelogs.core-directive.com/prompts/2.1.242/tools/ReportFindings.txt?arm=cli
- ScheduleWakeup (changed in this version): https://changelogs.core-directive.com/prompts/2.1.242/tools/ScheduleWakeup.txt?arm=cli
- SendMessage: https://changelogs.core-directive.com/prompts/2.1.242/tools/SendMessage.txt?arm=cli
- Skill: https://changelogs.core-directive.com/prompts/2.1.242/tools/Skill.txt?arm=cli
- TaskCreate: https://changelogs.core-directive.com/prompts/2.1.242/tools/TaskCreate.txt?arm=cli
- TaskGet: https://changelogs.core-directive.com/prompts/2.1.242/tools/TaskGet.txt?arm=cli
- TaskList: https://changelogs.core-directive.com/prompts/2.1.242/tools/TaskList.txt?arm=cli
- TaskOutput: https://changelogs.core-directive.com/prompts/2.1.242/tools/TaskOutput.txt?arm=cli
- TaskStop: https://changelogs.core-directive.com/prompts/2.1.242/tools/TaskStop.txt?arm=cli
- TaskUpdate: https://changelogs.core-directive.com/prompts/2.1.242/tools/TaskUpdate.txt?arm=cli
- WebFetch: https://changelogs.core-directive.com/prompts/2.1.242/tools/WebFetch.txt?arm=cli
- WebSearch: https://changelogs.core-directive.com/prompts/2.1.242/tools/WebSearch.txt?arm=cli
- Workflow: https://changelogs.core-directive.com/prompts/2.1.242/tools/Workflow.txt?arm=cli
- Write: https://changelogs.core-directive.com/prompts/2.1.242/tools/Write.txt?arm=cli

## Full text
- system prompt: https://changelogs.core-directive.com/prompts/2.1.242/system.txt?arm=cli