marckrenn/claude-code-changelog

Tracking prompts, feature flags and metadata of Claude Code releases. Subscribe to ↓

What it solves

It provides a community-maintained archive that tracks the evolution of prompts and feature flags for Claude Code, allowing users to see exactly how the tool's internal instructions and capabilities change across different releases.

How it works

The project extracts prompt artifacts and feature flags from Claude Code releases and stores them in a structured repository. It organizes these into legacy compatibility files, categorized system prompts, and derived metadata (such as token counts and CLI surface details). This data is then used to automatically detect new releases and publish diff summaries via the @ClaudeCodeLog X account.

Who it’s for

Developers and researchers who want to analyze the internal prompt engineering of Claude Code, track feature evolution, or use a coding agent to perform deep historical research on the tool's prompts.

Highlights

  • Prompt Tracking: Maintains a detailed history of system-prompts grouped by category.
  • Feature Flag Monitoring: Tracks cc-flags.md to monitor enabled/disabled capabilities.
  • Automated Updates: Automatically detects new releases and generates structured diff summaries.
  • Analytical Metadata: Provides estimated token totals, line counts, and lifecycle hints (Init/Last edit) for prompt artifacts.

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