Claude Never Forgets
Persistent memory across sessions. Learns preferences, conventions, and corrections automatically.
- Type
- Plugin
- Repository
- jeremylongshore/tons-of-skills-marketplace
- GitHub stars
- 2.8k
- License
- MIT
- Repo last updated
- Sep 27, 2026
- Version
- 1.21.0
- Author
- yldrmahmet
What Claude Never Forgets is
Claude Never Forgets is a plugin published in the jeremylongshore/tons-of-skills-marketplace repository on GitHub, which has about 2.8k stars. The repository describes itself as: “Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com.”
A plugin is a package that bundles skills, slash commands, subagents, hooks, and MCP connectors so they install together. Plugins are plain files with a manifest at .claude-plugin/plugin.json, and they work in both Claude Code and Claude Cowork.
Installing Claude Never Forgets adds everything it ships in one step. Connectors inside a plugin still need to be connected separately, and hooks and subagents only run in Cowork and Claude Code, not in regular chat.
How to install Claude Never Forgets
Claude Code
- Add the repository as a plugin marketplace: claude plugin marketplace add jeremylongshore/tons-of-skills-marketplace
- Install the plugin: claude plugin install claude-never-forgets@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json.
- Restart the session if the new skills or commands don't appear straight away.
Claude Cowork
- Open Customize → Plugins and choose Add marketplace.
- Enter jeremylongshore/tons-of-skills-marketplace (the owner/repo shorthand works for GitHub).
- Find Claude Never Forgets in the list, click Install, then connect any connectors it needs from its Connectors tab.
New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.
Inside the source file
An excerpt from plugins/community/claude-never-forgets/.claude-plugin/plugin.json, shared under the repository's MIT license. Read the full file on GitHub.
A Claude Code plugin that provides persistent memory across sessions and context windows.
!Claude Never Forgets
Why
Claude Code's context window is limited to 200K tokens. During long coding sessions, earlier parts of your conversation get summarized or dropped. When you start a new session, Claude has no memory of your previous work.
This plugin saves important parts of your conversations to a local file and automatically loads them when you start a new session - so your preferences, decisions, and project context persist.
Install
/plugin install yldrmahmet/claude-never-forgetsHow It Works
Automatic saving:
- Every user message and Claude response is saved
- Tool rejections (when you decline a suggested action) are captured as corrections
- Memories are stored in .claude/memories/project_memory.json
Automatic loading:
- When you start a new session, saved memories are loaded into context
- Claude sees your previous preferences and decisions
Automatic cleanup:
- When memories exceed 10 entries, Claude consolidates them
- Keeps important information (preferences, decisions, corrections)
- Removes noise (greetings, acknowledgments)
- The threshold (10) can be changed in hooks/stop_cleanup.py
Commands
/remember [text] # Manually add something to memory
/forget [text] # Remove a specific memory
/memories # View all stored memoriesExample
Session 1:
You: "Use pnpm instead of npm for this project"
Claude: *uses pnpm*
→ Saved to memory
Session 2 (next day):
🧠 Loaded 3 memories
You: "Install axios"
Claude: *runs pnpm add axios*
→ Remembered your preferenceStorage
Each project has its own memory file:
your-project/
└── .claude/
└── memories/
└── project_memory.jsonYou can:
- Commit it to git to share with your team
- Add it to .gitignore for personal preferences
- Edit it manually if needed
Privacy
All memories are stored locally. Nothing is sent to external servers.
License
MIT
Before you install
- Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
- Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
- Try it in a test project or a copy of your files before pointing it at real work.
- Pin the version you tested, and review changes before updating.
- Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.
FAQ
What is Claude Never Forgets?
Claude Never Forgets is a plugin for Claude Code and Claude Cowork from the jeremylongshore/tons-of-skills-marketplace repository on GitHub. Persistent memory across sessions. Learns preferences, conventions, and corrections automatically.
How do I install Claude Never Forgets in Claude Code?
Add the repository as a plugin marketplace: claude plugin marketplace add jeremylongshore/tons-of-skills-marketplace Install the plugin: claude plugin install claude-never-forgets@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json. Restart the session if the new skills or commands don't appear straight away.
Can I use Claude Never Forgets in Claude Cowork?
Open Customize → Plugins and choose Add marketplace. Enter jeremylongshore/tons-of-skills-marketplace (the owner/repo shorthand works for GitHub). Find Claude Never Forgets in the list, click Install, then connect any connectors it needs from its Connectors tab.
Is Claude Never Forgets safe to install?
It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.
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