Update changelog for v2.1.20

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Mike 2026-01-26 19:35:33 -07:00
parent 18fd5f9fc5
commit a8026dbfc4

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### Claude Code System Prompts Changelog ### Claude Code System Prompts Changelog
# [2.1.20](https://github.com/Piebald-AI/claude-code-system-prompts/commit/18fd5f9)
_-1,928 tokens_
- **NEW:** System Prompt: Doing tasks - Instructions for performing software engineering tasks
- **NEW:** System Prompt: Task management - Instructions for using task management tools
- **NEW:** System Prompt: Tone and style - Guidelines for communication tone and response style
- **NEW:** System Prompt: Tool usage policy - Policies and guidelines for tool usage
- **NEW:** Tool Description: SendMessageTool - Tool for sending messages to teammates and handling protocol requests/responses in a swarm
- **NEW:** Tool Description: EnterPlanMode (ambiguous tasks) - Tool for entering plan mode when task has ambiguity
- **REMOVED:** Agent Prompt: Conversation summarization with additional instructions - Extended summarization prompt with support for custom additional instructions
- **REMOVED:** Agent Prompt: Prompt Hook execution - Prompt given to Claude when evaluating whether to pass or fail a prompt hook
- **REMOVED:** System Prompt: Censoring assistance with malicious activities - Guidelines for assisting with authorized security testing
- **REMOVED:** System Reminder: Queued command (prompt) - Queued user message to address (prompt variant)
- **REMOVED:** System Reminder: Queued command - Queued user message to address
- **REMOVED:** System Reminder: Session memory - Past session summaries that may be relevant
- System Prompt: Main system prompt - Massively reduced from 2896 to 269 tokens; most content extracted into separate, focused system prompts (Doing tasks, Task management, Tone and style, Tool usage policy)
- Agent Prompt: Session title and branch generation - Changed output format from XML-style tags to JSON object with "title" and "branch" fields
- Agent Prompt: Bash command prefix detection - Changed from smart quotes to standard quotes
- Tool Description: TeammateTool - Removed protocol operations (approvePlan, rejectPlan, requestShutdown, approveShutdown, rejectShutdown, write, broadcast) and simplified to core team management operations
- Tool Description: TeammateTool operation parameter - Renamed from "TeammateTool's operation parameter" and condensed from 173 to 72 tokens
- Tool Description: Edit - Simplified by removing explicit read tool requirement from usage notes
- Tool Description: Write - Simplified by removing explicit read tool requirement from usage notes
- Tool Description: Bash (Git commit and PR creation instructions) - Added guidance to keep PR titles short (under 70 characters) and use description/body for details
- System Prompt: Tool execution denied - Streamlined wording
# [2.1.19](https://github.com/Piebald-AI/claude-code-system-prompts/commit/fcf3f24) # [2.1.19](https://github.com/Piebald-AI/claude-code-system-prompts/commit/fcf3f24)
_+182 tokens_ _+182 tokens_