# Claude Code v2.1.218: system prompt

> 1 of 27 tool descriptions changed. The appended system-reminder blocks moved: 1 line removed. Compared against v2.1.217.

Web version: https://changelogs.core-directive.com/prompts/2.1.218?arm=cli

## What this version holds
- model strings captured: 27
- tool descriptions: 27
- compared against: v2.1.217
- system prompt edits: 0
- widest system prompt edit: +0/-0 lines
- tool descriptions changed: 1

## What moved

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

This edit reached all 27 arms.

```diff
@@ from line 1 @@
 Invoke a skill.
 
-A skill is a packaged set of instructions the user or project has set up for a particular kind of task (deploy steps, a review checklist, a repo-specific workflow). Available skills appear in a system-reminder listing with one-line descriptions. When the task at hand is one a listed skill covers, call this tool first — the skill's instructions load into the turn for you to follow in place of your default approach; some skills instead run in a subagent and return the finished result. Users may also ask for one by name (`/<name>`, or "slash command"); that's a request to invoke it.
+A skill is a packaged set of instructions the user or project has set up for a particular kind of task (deploy steps, a review checklist, a repo-specific workflow). Available skills appear in a system-reminder listing with one-line descriptions. When the task at hand is one a listed skill covers, call this tool first — the skill's instructions load into the turn for you to follow in place of your default approach; some skills instead run in a subagent and return the finished result. A skill that runs in the background returns only the agent's name — its result arrives later as a task notification, so don't wait on it or invoke it again in the meantime. Users may also ask for one by name (`/<name>`, or "slash command"); that's a request to invoke it.
 
 - `skill`: exact name from the listing, no leading slash. Plugin skills use `plugin:skill`. Directory-scoped skills are listed with a path prefix (`apps/web:deploy`); when both scoped and unscoped variants of a name exist, pick the one whose directory contains the files you're working on (most specific wins; unscoped otherwise).
 - `args`: optional arguments to pass through.
```

## Tool descriptions
- Agent: https://changelogs.core-directive.com/prompts/2.1.218/tools/Agent.txt?arm=cli
- AskUserQuestion: https://changelogs.core-directive.com/prompts/2.1.218/tools/AskUserQuestion.txt?arm=cli
- Bash: https://changelogs.core-directive.com/prompts/2.1.218/tools/Bash.txt?arm=cli
- CronCreate: https://changelogs.core-directive.com/prompts/2.1.218/tools/CronCreate.txt?arm=cli
- CronDelete: https://changelogs.core-directive.com/prompts/2.1.218/tools/CronDelete.txt?arm=cli
- CronList: https://changelogs.core-directive.com/prompts/2.1.218/tools/CronList.txt?arm=cli
- Edit: https://changelogs.core-directive.com/prompts/2.1.218/tools/Edit.txt?arm=cli
- EnterPlanMode: https://changelogs.core-directive.com/prompts/2.1.218/tools/EnterPlanMode.txt?arm=cli
- EnterWorktree: https://changelogs.core-directive.com/prompts/2.1.218/tools/EnterWorktree.txt?arm=cli
- ExitPlanMode: https://changelogs.core-directive.com/prompts/2.1.218/tools/ExitPlanMode.txt?arm=cli
- ExitWorktree: https://changelogs.core-directive.com/prompts/2.1.218/tools/ExitWorktree.txt?arm=cli
- NotebookEdit: https://changelogs.core-directive.com/prompts/2.1.218/tools/NotebookEdit.txt?arm=cli
- Read: https://changelogs.core-directive.com/prompts/2.1.218/tools/Read.txt?arm=cli
- ReportFindings: https://changelogs.core-directive.com/prompts/2.1.218/tools/ReportFindings.txt?arm=cli
- ScheduleWakeup: https://changelogs.core-directive.com/prompts/2.1.218/tools/ScheduleWakeup.txt?arm=cli
- SendMessage: https://changelogs.core-directive.com/prompts/2.1.218/tools/SendMessage.txt?arm=cli
- Skill (changed in this version): https://changelogs.core-directive.com/prompts/2.1.218/tools/Skill.txt?arm=cli
- TaskCreate: https://changelogs.core-directive.com/prompts/2.1.218/tools/TaskCreate.txt?arm=cli
- TaskGet: https://changelogs.core-directive.com/prompts/2.1.218/tools/TaskGet.txt?arm=cli
- TaskList: https://changelogs.core-directive.com/prompts/2.1.218/tools/TaskList.txt?arm=cli
- TaskOutput: https://changelogs.core-directive.com/prompts/2.1.218/tools/TaskOutput.txt?arm=cli
- TaskStop: https://changelogs.core-directive.com/prompts/2.1.218/tools/TaskStop.txt?arm=cli
- TaskUpdate: https://changelogs.core-directive.com/prompts/2.1.218/tools/TaskUpdate.txt?arm=cli
- WebFetch: https://changelogs.core-directive.com/prompts/2.1.218/tools/WebFetch.txt?arm=cli
- WebSearch: https://changelogs.core-directive.com/prompts/2.1.218/tools/WebSearch.txt?arm=cli
- Workflow: https://changelogs.core-directive.com/prompts/2.1.218/tools/Workflow.txt?arm=cli
- Write: https://changelogs.core-directive.com/prompts/2.1.218/tools/Write.txt?arm=cli

## Full text
- system prompt: https://changelogs.core-directive.com/prompts/2.1.218/system.txt?arm=cli