Monghoul 1.4.18

Tree View

• Persistent column width — The key/value column split in Tree View now persists across query re-runs and app restarts. The width is saved per tab and included when saving or syncing favorite queries.

Sidebar

• Customizable snippets — Collection context menu snippets and the default query opened on double-click are now fully configurable. Open the settings modal via Snippets > Customize in the context menu to add, remove, drag-to-reorder, and edit snippets with a Monaco editor. Changes auto-save and code is auto-formatted with Prettier. Star a snippet to make it the default query. Restore Defaults brings back the built-in set with a confirmation prompt.

Editor

• $lookup field resolution — After a $lookup stage, autocomplete suggests nested field paths from the foreign collection's schema (e.g. customer.name, customer.address.city). Pipeline-form $lookup narrows suggestions to the sub-pipeline output. Foreign collections are auto-analyzed in the background when detected.
• $replaceRoot / $replaceWith awareness — Subsequent stages see the correct fields after a $replaceRoot with a field reference or object literal, including through $lookup + $unwind + $replaceRoot chains.
• $facet sub-pipeline tracking — Each $facet branch's output fields are tracked and nested under the branch name (e.g. byCategory._id, byCategory.count).
• $group._id sub-fields — Object _id expressions like { year: { $year: "$date" }, month: ... } expose _id.year and _id.month in subsequent stages.
• $unionWith schema merging — Fields from the other collection appear in autocomplete after $unionWith, with optional pipeline narrowing.
• $sortByCount reshaping — Correctly recognized as producing _id and count fields instead of passing through the original document shape.
• Stage-aware auto schema analysis — Collections referenced in $lookup.from, $graphLookup.from, $unionWith, $merge.into, and $out are auto-analyzed for schema, including in the visual aggregation builder.

Query

• Explain result preserved in fullscreen — Clicking the fullscreen button in the result viewer no longer resets an explain result back to the previous query output.

Under the Hood

• AST-based autocomplete engine — Replaced hand-written character-by-character parsers with an acorn-loose AST module. Single parse per keystroke instead of multiple redundant scans. More maintainable and easier to extend.