Noggin

A working-memory tree for in-flight work — your second brain for the stuff you can't fit in your head.

Push when you side-quest. Add when you want to remember something without diving in. Pop when you're done. The active spine is always in front of you.

See it in action: live CLI demo — every verb side-by-side, human vs JSON output.

[1📍] ship v1 of noggin
  [1✅] build a demo script
  [2✅] create a documentation file
  [3] perform final testing
  [4] create a PR
  [5] complete the PR

What you get

• Sidebar tree — every item with its full dotted path (e.g. 1.2.3.), the active item highlighted, a click-to-toggle done icon per row, and drag-and-drop reordering that supports dropping on a parent (becomes child) or between siblings (with a labeled insertion line so you can see exactly where the drop will land).
• Details pane — focused item with state-toggle icon, full dotted path, inline-editable title, notes (Markdown-rendered) with a quick-add affordance, and view-title icons for Add Child / Move Up / Move Down / Delete.
• Status bar item — left side, showing the active item's title and the open file's friendly label. Hover for the full path. Click to reveal the active item in the tree.
• Commands — full set under Noggin: … in the Command Palette (Push…, Add…, Show Active, Go To, Mark Done, Pop, Add Note…, Retitle…, Open YAML, Refresh, …).
• Copilot Chat skill — loaded automatically. The agent knows when to push / add / note / etc. without configuration. The agent can drive noggin in-process via the #nogginPush, #nogginAdd, #nogginShow … language model tools, so it never has to spawn a CLI.

Getting started

1. Install the extension from the Marketplace.
2. Open the Noggin activity-bar container in the sidebar.
3. Run Noggin: New… to create a noggin file, or Noggin: Open Workspace Noggin to use a .noggin.yaml at your workspace root.
4. Push an item: click Push… in the tree's view-title, or run the command from the palette.

The noggin file is a small human-readable YAML file. Open it anytime via Noggin: Open YAML to inspect or edit by hand.

Settings

The noggin file path is tracked per-workspace (in workspace state), set via Noggin: New…, Noggin: Open File…, or Noggin: Open Workspace Noggin.

Learn more

• Full user reference — mental model, path syntax, command reference, file schema.
• What the agent sees — the skill behavioural protocol.
• Repo on GitHub — source, issues, contributions.

License

MIT.