version: "1.0.0" name: base description: Create, edit, inspect, verify, open, screenshot, import, and export remote Workspace Base Units, tables, fields, records, and views.

Workspace Base

Load core first and use one explicit draft Worktree and Base Unit ID throughout the task.

Model

A Base is one Univer Unit:

FUniver
└── FBase
    └── FBaseTable
        ├── FBaseTableField   schema and value contract
        ├── FBaseTableRecord  stored business data
        └── FBaseTableView    projection of the same table records

• Resolve FBase by stable Unit ID. Tables own fields, records, and views; views add filter, sort,

group, visibility, and type-specific presentation over the same records.

• The primary field is the record's visible identity for links, cards, and details. Define it with

insertTable(..., { primaryFieldName }) instead of adding a duplicate label field.

• Use stable Unit/Table/Field/Record/View IDs in Facade relationships and user-facing names for

display. Record values and view config normally refer to Field IDs.

• table.getFormulaName() is the structured-reference name used in formulas; it may differ from the

table's display name.

Workspace entry

Create an empty Base or stage an existing Base Resource in the task Worktree:

uvw unit create \
  --worktree <worktree-id> --space <space-id> \
  --type base --name <name> --json
uvw unit list --worktree <worktree-id> --json
uvw inspect base \
  --worktree <worktree-id> --unit <base-id> --json

Creation returns server-owned unitId, resourceId, and nodeId. Use the returned unitId for every Base content command. For original-file preservation without an editable Base Unit, read the Blob Skill. Blob Resources have no unitId and cannot use this Skill's commands.

Base authoring uses the shared execute transaction. Workspace execution injects the selected FBase as base, together with univerAPI and alias api; do not redeclare them:

uvw execute \
  --worktree <worktree-id> --unit <base-id> \
  -e 'return base.getId();' \
  --json

Do not call createBase() after unit create merely to obtain a handle. A new Base already contains Table 1 with a primary Name field and Grid; insertTable() also creates a Grid. Run inspect base first, then deliberately reuse, rename, or delete defaults.

Exact API

uvw api show FUniver.getBase FBase FBaseTable FBaseTableField FBaseTableRecord FBaseTableView
uvw api show FEnum.BaseFieldType FBase.insertTable FBaseTable.addField FBaseTable.addRecords FBaseTable.createView
uvw api show IGridViewConfig ICalendarViewConfig IGalleryViewConfig IGanttViewConfig IKanbanViewConfig ICardLayoutConfig

Use focused discovery such as uvw api find recordLink --unit base. Follow every referenced child type: if a result says card?: ICardLayoutConfig, run api show ICardLayoutConfig instead of guessing its shape.

Core contracts

• Add fields one at a time with FBaseTable.addField(...); there is no addFields method.
• Single/MultiSelect options use { id, name, color? }; records store option IDs, not labels.
• Progress values follow the configured range: with { start: 0, end: 100 }, 75% is 75, not

0.75.

• Money uses BaseFieldType.Currency and numeric values; Number is not a semantic substitute.
• RecordLink config targets a Table ID and stores target Record IDs. Prefer its dedicated Facade

methods when editing links.

• View config uses Field IDs. Kanban/Gallery card title and fields follow ICardLayoutConfig;

fieldSettings does not replace the card contract.

Verification

After the last write, check:

1. uvw inspect base --worktree <worktree-id> --unit <base-id> --json for tables,

primary fields, field types and config, record counts, and view types. It is read-only and accepts no selector.

1. In a fresh read-only execute, explicitly return record values plus view.getConfig() and

view.getProjection() for stored IDs and view bindings.

1. Review the required rendered views for blank labels, exposed IDs, implausible dates or

percentages, missing card fields, and empty defaults.

uvw screenshot \
  --worktree <worktree-id> --unit <base-id> --out <directory> --json
uvw browse <n> -R <repo> --unit <base-id>

Base screenshots accept only common screenshot options; do not pass Sheet ranges or Slide page selectors.

Formula fields

Run uvw skills get base --full and follow references/formulas.md. Formula fields use exact Excel structured references. Await calculation and read back computed record values; stored formula text alone is not correctness evidence.

Image attachments

Create an Attachment field, add or select a record, and use record.setAttachments(). For a local image, put its data URI in source and declare sourceType: api.Enum.ImageSourceType.BASE64:

const table = base.insertTable("Assets");
const field = table.addField("Image", api.Enum.BaseFieldType.Attachment);
const record = table.addRecord({});
const ok = record.setAttachments(field.getId(), [
  {
    id: "local-image",
    name: "photo.jpg",
    mimeType: "image/jpeg",
    sourceType: api.Enum.ImageSourceType.BASE64,
    source: imageDataUri,
  },
]);
if (!ok) throw new Error("Attachment write failed");

Read back record.getValues()[field.getId()] in a later execution.

Base participates in the existing Workspace Office import/export matrix. Complete calculation, structured inspection, readback, and visual verification before export. Keep merge and discard user-authorized as described by core.