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Plugin

Claude Never Forgets

Persistent memory across sessions. Learns preferences, conventions, and corrections automatically.

Type
Plugin
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

  1. Add the repository as a plugin marketplace: claude plugin marketplace add jeremylongshore/tons-of-skills-marketplace
  2. Install the plugin: claude plugin install claude-never-forgets@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json.
  3. Restart the session if the new skills or commands don't appear straight away.

Claude Cowork

  1. Open Customize → Plugins and choose Add marketplace.
  2. Enter jeremylongshore/tons-of-skills-marketplace (the owner/repo shorthand works for GitHub).
  3. 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-forgets

How 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 memories

Example

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 preference

Storage

Each project has its own memory file:

your-project/
└── .claude/
    └── memories/
        └── project_memory.json

You 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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Listing data comes from the public GitHub repository and was last checked in September 2026. Excerpts are © their authors and shared under MIT. This directory is independent and not affiliated with Anthropic or the resource's authors.