[taz-mon]

I noticed two bullets under Notebooks (breakpoint() and Inspect) were about 1,000 words in two paragraphs. They looked out of place and either formatted wrong or dumped in by an AI agent unconcerned with formatting. This PR moves the content with specific context into their own section, Debug a notebook cell, with shorter, human-readable sections:

• Pause
• Look at what the cell has
• Change a value
• Run code at the pause
• Commands that start with %
• Persisted Objects
• Save a paused stack
• Inspect an object

The rest of Notebooks section stays as it was. A new line in the Reference list (Debug a notebook cell) links to the section. The wording is written for someone new to the debugger: each term is explained where it first appears, and menu names say where to click.

Checked on a VM

Ubuntu 26.04 with a fresh install of GemDB Code 1.9.0. Corrections the test made to the old text:

• Functions sit under function variables, and imported modules under module variables. The old text said classes and functions were "folded into their own rows".
• Locals appears only when the pause is inside a function. A top-level cell shows only Globals.
• Set Value leaves the cell paused, and Continue uses the new value.
• The Persisted Objects view needs Refresh after a Revert to Committed Value.

Added because the README did not say it:

• persisted lists the persisted names.
• %pending also counts a few records that Grail keeps outside gemdb.root.
• Remove from Persisted Objects.
• Abort discards all of a notebook's uncommitted changes.
• Revert asks you to confirm.
• Restore a Saved Stack… and Open Saved Stack in the Debugger.
• Dive Here, and the three Evaluate buttons (Display It, Execute It, Inspect It).

Tested in a VM

I ran the steps in the new section on an Ubuntu VM with GemDB Code 1.9.0: pausing and looking at values, Set Value, the Debug Console and the % commands, Persisted Objects (including Revert, Go to Item and ranges), saving and reopening a stack, and the Inspector (opening it from Variables, Watch, Persisted Objects and %inspect; the Attributes, Items, Repr, Class and Evaluate tabs, including paging past 100 items, the jump box and the MRO, Docstring and Methods sub-tabs; Edit Value, Dive Here, back and forward, and the busy-notebook message; and Evaluate on a committed entry). A committed entry and a saved stack both reopen after VS Code is closed and reopened.

I did not run this:

• The macOS form of the Evaluate shortcuts (Cmd+K D, E and I). It comes from docs/inspector.md.

Questions for Eric:

• Should Revert to Committed Value refresh the Persisted Objects view by itself? It showed the reverted change until ↻ was clicked.
• The Pending changes group says “Nothing of yours changes on commit.” when the only pending items are Grail’s own records or values written back unchanged (src/savedObjects.ts). The message is meant to reassure, but the wording is odd and might sound like it was written by an AI. It would be great if a future commit improved that phrase.
• The debug toolbar shows step buttons while the README says stepping is not supported. Should it?

🤖 Generated with Claude Code

[ericwinger]

I actually read this like a real human and found some nitty stuff with one possible thing that could be rewritten. But it's pretty good as is.