8.0.0 — Claude Code only

BREAKING for anyone running the kit outside Claude Code; nothing changes inside Claude Code. The plugin id
(memory-kit@memory-kit), every skill, agent and hook, and the files the kit owns in your repository are unchanged.

Removed

• Every host other than Claude Code. The Cursor catalog (.cursor-plugin/marketplace.json,
  plugins/memory-kit/.cursor-plugin/plugin.json), the OpenCode shim (.opencode/plugins/memory-kit.js) and the
  root package.json that existed only to install it, and the AGENTS.md protocol block
  (templates/workspace/AGENTS-MEMORY-PROTOCOL.md) for hosts without hooks. Each host enforced a different subset
  and every claim needed its own probe; the kit now makes promises only where it runs.
• /memory-kit:setup no longer offers the AGENTS.md block and no longer carries the "running under another
  host" fallback.
• The per-host specs (docs/specs/{codex,cursor,copilot,opencode,cowork,agents-md}.md), the tier model in
  docs/ARCHITECTURE.md, the "Works with other agents" README section, the OpenCode CI step and the Cursor /
  OpenCode / protocol-marker checks in tools/check-repo.py. All of it stays in git history at tag v7.3.0.

Changed

• The product is called Claude Memory Kit in prose; both READMEs say it is an independent project, not made or
  endorsed by Anthropic. The plugin name, displayName and the GitHub repository stay as they were — the
  directory submission is bound to the repository, and its rules hold a displayName that matches a known brand.
• Three diagrams redrawn without the host list: 01-system-map-claude-code.png, 08-one-operator-claude-code.png,
  og-banner-claude-code.png (prompts kept in tools/asset-prompts/).
• The README comparison is against Claude Code's own auto memory specifically (machine-local, in
  ~/.claude/projects/<project>/memory/ — code.claude.com/docs/en/memory, read 2026-10-22).

Migration

• In Claude Code: nothing. claude plugin marketplace update memory-kit, then claude plugin update memory-kit@memory-kit.
• A repository that appended the protocol block to AGENTS.md: the block is no longer maintained; delete it
  (between the <!-- memory-kit protocol … --> markers) or keep it as a static note.
• OpenCode users: remove memory-kit@git+… from opencode.json; the install would now fail without package.json.