Content & Layout

The islands that aren't charts of your data: a note for prose, a source doc for a file or link, a content editor for a whole workspace of markdown files, a form entry for adding rows by hand, and a layout row to control how a page wraps. See the islands overview for the full registry.

note.card

What it is. A static Markdown card with no data binding. When to use it: commentary, a caption, instructions, or a link, dropped right between data islands. It renders markdown: headings, lists, inline code, bold/italic, and links all render. Set a tone to turn it into a callout that stands out from the prose around it.

{
  "type": "note.card",
  "title": "How to read this page",
  "markdown": "The top row tracks **net worth**..."
}

Key options.

• markdown: the only required field; no dataset. Use \n\n between blocks and \n for a soft break inside one.
• tone: "info" | "success" | "warning" | "danger" (optional): renders the note as a callout — a tinted panel with a colored left accent and a matching icon. Omit it for plain prose.

Tones. Reach for a tone when the note is an aside the reader shouldn't miss — a caveat next to a metric, a heads-up about stale data, a confirmation. Without one, the note reads as quiet commentary.

{
  "type": "note.card",
  "title": "Heads up",
  "tone": "warning",
  "markdown": "Balances settle overnight, so **today's row updates after midnight UTC**."
}

source.doc

What it is. A document card that surfaces a source right next to the data it backs: a PDF statement, a Markdown brief, an image, or a plain link out. When to use it: when a reader will want the underlying file. Every card shows a type icon, a readable name, and an Open button that opens the source in a new tab. Set kind to choose how it renders, and give it either a file (a path inside the project) or an href (an external URL).

{
  "type": "source.doc",
  "title": "Methodology",
  "kind": "link",
  "label": "OpenIslands on GitHub",
  "description": "Source, issues, and the manifest schema",
  "href": "https://github.com/lukaisailovic/openislands"
}

Key options.

• kind: "pdf" | "markdown" | "image" | "link" (default link): how the source renders. pdf embeds the file in a viewer below the card header, markdown renders it inline, image shows a preview that opens full size, link is an external link out.
• file: a path relative to the project root; it resolves through the runtime's confined file route. href is an external URL used as-is.
• label: the name shown on the card. Without it, the card falls back to the file's name or the link's host — never the raw file URL.
• description: a short line under the name explaining what the document is.

content.editor

What it is. A full-page, Obsidian-style content workspace. When to use it: when the page is a body of documents — a knowledge base, a set of runbooks, a notebook — rather than a chart of your data. It's the one island that binds no dataset and runs no SQL: it reads and writes markdown files on disk directly. It renders full-bleed (no card header or title bar) and wants a full-width span of 12; its minimum is 6.

Point it at either a single file or a whole dir — exactly one, never both:

{
  "type": "content.editor",
  "title": "Runbook",
  "span": 12,
  "file": "data/docs/oncall.md"
}

{
  "type": "content.editor",
  "title": "Docs",
  "span": 12,
  "dir": "data",
  "csv": true,
  "groups": [
    { "id": "specs", "label": "Specs", "icon": "files", "match": ["specs/**", "architecture.md"] },
    { "id": "runbooks", "label": "Runbooks", "icon": "list-bullets", "match": ["runbooks/**", "incident-*.md"] },
    { "id": "notes", "label": "Notes", "icon": "folder", "match": ["notes/**", "roadmap.md"] }
  ]
}

Key options.

• file / dir: the source, and exactly one is required — file is one document under data/ or docs/, dir is a directory (recursed). Both, or neither, is a named validation error.
• include (dir only): globs of files to surface; defaults to markdown (**/*.md, **/*.markdown).
• csv (dir only, default false): also surface .csv files alongside the markdown. CSVs open as an editable table — edit cells, add and delete rows, and Save writes valid CSV back to the file. They're read-only only when readOnly is set. (Adding or removing columns is out of scope; edit the header in your own editor.)
• groups (dir only): virtual folders, each { id, label?, icon?, match }. See below.
• readOnly (default false): make the whole workspace a viewer — no editing, no saving.

Setting include, csv, or groups together with file (rather than dir) is a named validation error.

Editing and version history. Unless readOnly is set, edits autosave about a second after you stop typing — no Save click needed, though Save and ⌘S still force one. The header shows a Saving… / Saved hint as it goes. The file on disk stays the source of truth — change it in your own editor and the open workspace refreshes within a second or two (unsaved edits in the browser are never clobbered). Every save also records a restorable snapshot in a per-app SQLite store at .openislands/editor.sqlite; the workspace surfaces that history and lets you roll a file back to any earlier version, so edits are never lossy.

Virtual folders (groups). A dir is browsed as its real tree by default. groups overlay virtual folders that gather scattered files into tidy sidebar buckets regardless of where they live on disk: each group's match is an array of globs relative to dir, label names it (it defaults to the id), and icon is a Phosphor name (e.g. files, folder) that falls back to a folder icon. Files matching no group collect in an Ungrouped bucket, so nothing is hidden. The New-note dialog picks the folder a note starts in, and you can move a note between folders later — drag it onto a group or use its move menu — which renames it on disk into that folder and carries its version history along.

form.entry

What it is. A data-entry form card bound to a manifest action. When to use it: when a human, not just an agent, should add rows — log an incident, record a meal, file an expense — right next to the data it feeds. It's the human-facing mirror of the agent's run_action: you don't re-declare fields, you point it at an action and it derives one typed input per field from that action's resolved row schema. So it binds no dataset of its own — the action already names the target.

The card renders a text, number, or date input per field, a dropdown for an enum field, and a checkbox for a boolean, with a submit button in the bottom-right. A field is required unless the action gives it a default. On submit it inserts a row through the same path as the MCP run_action — the row is validated, snapshotted to history for rollback, then inserted — and the bound dataset's islands refresh live.

{
  "type": "form.entry",
  "title": "Report incident",
  "action": "log_incident",
  "submitLabel": "Report"
}

Key options.

• action: the only required field; the name of a manifest actions entry this form writes to. Its inputs — types, enum dropdowns, min/max, defaults, and field descriptions — all come from that action's resolved row schema, so the form stays in step with the data.
• fields (optional): the action's columns to render, in this order. Omit it to render every insertable column; each name must be a real column of the action's dataset, checked at compile.
• submitLabel (optional, default "Add"): the text on the submit button.

layout.row

What it is. A structural full-width row that holds other islands. When to use it: when you want a group of islands to sit on their own grid row rather than flowing into the page's column packing. It carries no span, no title, no dataset, and can't be nested; it exists purely to arrange its children.

Its children render on their own fresh 12-column grid row, each sized by its own span. The row itself is transparent to island indexing: a validation error names the child island, not the row.

{
  "type": "layout.row",
  "islands": [
    {
      "type": "metric.kpi",
      "title": "Net worth",
      "dataset": "net_worth",
      "value": "net_worth_eur",
      "format": "eur",
      "span": 6
    },
    {
      "type": "metric.kpi",
      "title": "Cash",
      "dataset": "net_worth",
      "value": "cash_eur",
      "format": "eur",
      "span": 6
    }
  ]
}

Key points.

• islands: the only field; one or more child islands, each a normal built-in island with its own span.
• No span, title, or data binding on the row itself.
• No nesting: a layout.row can't contain another layout.row.