Tier 1 · Claude Code internals Claude Code internals · fetched 2026-07-02

claude-code-architecture-analysis-ppt

A React/TypeScript/Vite slide-deck application presenting the Claude Code architecture analysis: the leak event timeline, architecture design, and safety mechanisms. The presentation format makes it ideal for quick summary-level orientation before diving into the deeper analyses.

View source on GitHub

Key takeaways

01
Fast orientation layer over the deeper source analyses
02
Covers event history, architecture, and safety mechanisms in slide form
03
Good template for communicating harness architecture to a team

From the archive

Verbatim excerpts mined from our local archive of this repository — the prompts, schemas, and patterns worth stealing.

Insight

Static/dynamic prompt boundary for cache efficiency

Multi-layer prompt system:
- Static prompts: rules and constraints shared by all users
- Dynamic prompts: generated per-user for personalization
- SYSTEM_PROMPT_DYNAMIC_BOUNDARY design: marks the split between the static part and the dynamic part, improving cache hit rates while supporting personalization

Permission modes: Ask Mode, Auto Mode, Bypass Mode; trust model built from user allowlists, domain allowlists, and behavior analysis.

Skill system: a lightweight skill-loading alternative to MCP that reduces context consumption.

[translated] The single most reusable idea: draw an explicit boundary in your system prompt so the static prefix stays byte-identical and prompt caching keeps hitting.

README.md