moreminimore-redesign/templates/portfolio/.agents/skills/emdash-cli/EDITING-FLOW.md

Editing Flow

How content editing works through the CLI. Covers Portable Text conversion, _rev tokens, and raw mode.

Portable Text and Markdown

EmDash stores rich text as Portable Text (PT) — a structured JSON format. The CLI automatically converts between PT and markdown so you work with a familiar text format.

Automatic Conversion

• On read: PT arrays in portableText fields are converted to markdown strings
• On write: markdown strings in portableText fields are converted back to PT arrays
• Non-PT fields (string, text, number, etc.) pass through unchanged

The CLI detects which fields need conversion by fetching the collection's field schema.

Supported Markdown Syntax

Standard blocks (lossless round-trip):

Markdown	PT block
# Heading through ######	h1-h6 blocks
Plain paragraph	normal block
> Quote	blockquote
- item / * item	bullet list (nesting via 2-space indent)
1. item	numbered list (nesting via 2-space indent)
``` ```lang```	code block with language
	image block

Inline marks:

Markdown	PT mark
**bold**	strong
_italic_	em
`code`	code
~~strike~~	strikethrough
[text](url)	link annotation

Unknown Blocks (Opaque Fences)

Blocks the converter doesn't recognize (custom blocks, embeds, etc.) are serialized as HTML comments:

<!--ec:block {"_type":"callout","level":"warning","text":"Be careful"} -->

These survive round-trips intact. You can see and move them, but editing the JSON risks corruption. On write, they're deserialized back to the original PT block.

Raw Mode

Skip markdown conversion entirely to work with raw PT JSON:

npx emdash content get posts 01ABC123 --raw

Use raw mode when:

• You need exact control over PT structure
• You're working with custom block types
• You're copying PT between items without transformation

Writing Content

When creating or updating content, each field is checked:

• portableText field + string value → converts markdown to PT before sending
• portableText field + array value → sends as raw PT (no conversion)
• Any other field type → sends as-is

# Markdown string — converted to PT automatically
npx emdash content create posts --data '{"title": "Hello", "body": "# Welcome\n\nThis is **bold**."}'

# Raw PT array — passed through as-is
npx emdash content create posts --data '{"title": "Hello", "body": [{"_type": "block", "children": [{"_type": "span", "text": "Welcome"}]}]}'

Auto-Publishing

The CLI is designed for agents. It auto-publishes on create and update by default so agents get read-after-write consistency without managing the draft/publish lifecycle.

How It Works

• create — creates the item, then publishes it. The returned item is in published status.
• update — updates the item. If the collection uses revisions and the update created a draft revision, it auto-publishes to promote the draft to the content table. The returned item reflects the updated data.
• get — returns the latest state. If a pending draft exists (e.g. someone edited in the admin UI but didn't publish), the draft data is returned instead of the published data. Use --published to see only published data.

Use --draft on create/update to skip auto-publishing.

Why Auto-Publish?

EmDash collections can support draft revisions. When they do, update writes data to a draft revision instead of the content table. Without auto-publish, an agent would update, then get the item, and see stale published data — not the changes it just made. Auto-publish eliminates this confusion.

Read-Before-Write

Updates use _rev tokens for optimistic concurrency — the same principle as a file editing tool that requires you to read a file before you can edit it. You must see what you're overwriting.

The Analogy

Think of it like a filesystem edit tool:

1. You read the file to see its current contents
2. You decide what to change
3. You write with a reference to the version you read

If someone else changed the file between your read and your write, the write fails — you can't overwrite changes you haven't seen. The _rev token is your proof that you've seen the current state.

How It Works

1. content get returns the item with a _rev token in the output
2. You pass that _rev back to content update via --rev
3. The server checks: if the item has changed since your read, it returns 409 Conflict
4. A successful update returns a new _rev for subsequent edits

What Is a _rev Token?

An opaque base64 string. Don't parse it — just pass it back.

CLI Workflow

The CLI requires --rev on updates. The typical workflow:

# 1. Read the item — note the _rev in the output
npx emdash content get posts 01ABC123
# Output includes: _rev: MToyMDI2LTAyLTE0...

# 2. Update with the _rev you received — auto-publishes by default
npx emdash content update posts 01ABC123 \
  --rev MToyMDI2LTAyLTE0... \
  --data '{"title": "New Title"}'
# Output shows updated item with new _rev

If you try to update without --rev, the CLI rejects the command. This ensures you always know what you're overwriting.

Conflict Handling

If someone else updated the item between your read and write:

EmDashApiError: Content has been modified since last read (version conflict)
  status: 409
  code: CONFLICT

Resolution: re-read with get, inspect the new state, then update with the fresh _rev.

Which Operations Need _rev?

Only update. All other operations are either idempotent or non-destructive:

Command	--rev needed?	Why
content create	No	Nothing exists yet
content update	Yes	Overwrites existing data
content delete	No	Soft delete, reversible
content publish	No	Idempotent status change
content unpublish	No	Idempotent status change
content schedule	No	Only changes metadata
content restore	No	Restores from trash