Open-sourced Claude Code prompts reverse-engineered using Claude
A developer has open-sourced a collection of 26 prompts reverse-engineered from Claude Code's source code using Claude itself. The TypeScript source was briefly available as a public npm package before being taken down, during which time the developer studied every prompt in the codebase and used Claude to help rewrite them from scratch.
Prompt categories and structure
The collection contains:
- 1 system prompt covering identity, safety, code style, tool routing, and output rules
- 11 tool prompts for shell, file read/edit/write, grep, glob, web search/fetch, agent launcher, ask user, and plan mode
- 5 agent prompts: general purpose, code explorer, solution architect, verification specialist, and documentation guide
- 4 memory prompts for conversation summarization, session notes, memory extraction, and consolidation
- 1 coordinator prompt for multi-agent orchestration
- 4 utility prompts for session titles, tool summaries, away recaps, and next action suggestions
Notable implementation details
Several specific patterns emerged from the analysis:
- A dedicated verification agent whose entire job is to try to break implementations before reporting them as done
- 6 specific "rationalization patterns" the system watches for in itself, such as "the code looks correct based on my reading" which triggers the response "reading is not verification, run it"
- The memory system compresses conversations into 9 structured sections while preserving every user message
- The coordinator prompt includes the instruction "never delegate understanding" — requiring agents to prove they understood before handing off work
Legal and technical considerations
Every prompt was independently authored in the developer's own words, with automated originality checks confirming no verbatim matches with the original source. The repository includes a full disclaimer covering nominative fair use, non-affiliation with Anthropic, and a DMCA response policy. Legal consultation was obtained before publishing.
The repository is available at https://github.com/swati510/claude-code-prompts and is MIT licensed. The project is not affiliated with Anthropic.
📖 Read the full source: r/ClaudeAI
👀 See Also
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Vektori's Memory Architecture: Principles from Claude's Leaked System
Vektori implements a three-layer hierarchical sentence graph for AI memory, inspired by leaked principles from Claude's architecture. The system uses strict quality filters, skeptical retrieval with a 0.3 minimum score, and maintains correction history across sessions.
Fehu: CLI Double-Entry Bookkeeping with Claude AI MCP Integration
Fehu is a lightweight CLI personal accounting tool that connects to Claude AI via MCP, allowing natural language transaction recording with a SQLite-backed double-entry system. It features hierarchical accounts, auto-tagging with hashtags, a powerful calc engine, and multi-currency support.
Open Source System Captures Claude Code Patterns into Evolving Documentation
Developer Lee Fuhr has released three open source repositories that systematically capture and codify learnings from working with Claude Code. The system includes a methodology document with 14 principles and 19 patterns, an architecture classification framework, and a memory system with 149 features.