Can I check for updates from a specific time period?

Yes, you can specify a lookback period such as 'last 7 days' or 'updates from the last two weeks' to see a chronological history.

Will I see the same updates every time I run the command?

No, the skill advances a watermark after each successful summary, ensuring you only see new changes since the last time you checked.

How does CC Changelog determine relevance?

The skill scores updates by comparing changelog entries against your installed skills, commands, plugins, and historical usage patterns, filtering out low-impact noise.

What is included in the system prompt diff summary?

It summarizes meaningful changes to Claude's internal instructions, such as new context blocks, tool schema updates, model version bumps, and behavioral flag changes.

Does this skill require any external authentication?

Yes, it requires the GitHub CLI (gh) to be authenticated on your machine to fetch release data and changelog information from the repository.

CC Changelog

Name: CC Changelog
Author: lttr

bylttr

•

Productivity & Workflow

Tracks and summarizes personalized Claude Code updates and system prompt changes based on your unique development setup.

CC Changelog is a specialized utility designed to keep developers informed about the rapidly evolving Claude Code ecosystem without the noise of irrelevant updates. It intelligently analyzes official changelogs and scores individual updates based on your installed skills, active plugins, and specific usage patterns. By grouping changes into logical themes and providing a concise TL;DR, it ensures you spend less time reading release notes and more time leveraging new capabilities. Notably, it includes a deep-dive analysis of system prompt diffs, allowing you to understand subtle shifts in AI behavior, tool schemas, and model instructions as they happen.

Key Features

01Personalized relevance scoring based on your specific skills and hooks.

02Smart watermarking that remembers what you've already seen to prevent repetitive updates.

032 GitHub stars

04Automated system prompt diff summarization to track changes in AI logic and instructions.

05Support for date-based lookbacks for specific timeframes like 'last week' or 'last 14 days'.

06Thematic grouping of updates into categories like Performance, Plugins, and Agent Teams.

Use Cases

01Discovering newly supported bash commands or tool schema updates relevant to your workflow.

02Debugging unexpected changes in AI behavior by reviewing recent system prompt modifications.

03Staying informed about new Claude Code features after being away from the terminal.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add lttr/claude-marketplace changelog

For use in Claude.ai and ChatGPT

Download Skill