What is pre and post text in Nodaro?

Two optional texts that Nodaro adds before and after the prompt of an AI node every time the node runs. You set them in the settings panel, and they never appear on the node itself.

Can the people who use my app see the pre and post text?

No. Pre and post text is a setting, not part of the app's form. People who run your app type only the prompt, and your text wraps it at run time.

Does pre and post text change the negative prompt?

No. Only the positive prompt is wrapped. The negative prompt is used exactly as you wrote it.

What happens when the prompt is empty?

The pre and post text alone become the prompt. This is how a preset can carry its whole prompt in the pre text, and it replaces any built-in default the node would otherwise use for an empty prompt.

Does applying a preset replace my pre and post text?

A preset that ships prompt content, a prompt or pre and post text, replaces the node's pre and post text. A preset that only changes settings leaves your pre and post text as it is.

Prompt pre and post text — fixed text around every prompt, hidden from app users

Pre and post text is fixed text that Nodaro adds before and after a node's prompt at run time. It stays hidden from app users and travels with presets.

Pre and post text is fixed text that Nodaro adds before and after a node's prompt every time the node runs. You set it in the settings panel, it never appears on the node, and people who use your workflow as an app never see it. Use it for a house style or a standing instruction, so that the prompt field stays free for the subject.

How it works

Field	Where the text goes
Before the prompt	Before the prompt
After the prompt	After the prompt

With Before the prompt set to Cinematic 35mm still of and After the prompt set to , golden hour, the prompt a woman in Tokyo runs as:

Prompt

Cinematic 35mm still of a woman in Tokyo, golden hour

The person who typed the prompt wrote only "a woman in Tokyo". The style comes from the settings of the node.

Set it

Open the settings panel

Double-click the node, such as Generate Image, to open its settings panel.

Open Pre & post text

Click the Pre & post text section. It is collapsed by default.

Write the text

Type in Before the prompt, After the prompt, or both. These fields work like the prompt: they accept @ references, { variables and / snippets. When a field has text, the section shows a badge, such as 2 set, so the text is never hidden from you.

Run the node

The text is added to the prompt at run time. To check the result, switch the prompt area of the node to Final.

The settings panel of Generate Image with the Pre & post text section open, text in Before the prompt and After the prompt, and the 2 set badge.

When to use it

Apps. Your MiniApp shows a prompt field, and the pre and post text add your house style around whatever people type. They never see or change it.
Presets. A preset that keeps its instruction in pre and post text leaves the prompt free: apply the preset, type your subject, and the preset's text still wraps it. A preset that puts its text in the prompt is overwritten as soon as you type.
A standing instruction. Rules that every run needs, such as "no text in the image", belong in the pre text instead of in every prompt.

What gets wrapped

Whatever prompt the run uses. The text typed in the node, a prompt connected from another node, or each item of a list.
Before Nodaro adds its own parts. Nodaro adds picker wording, character references and the Style and "Avoid:" lines after the wrap. Pre and post text therefore behaves exactly like text you typed into the prompt.
Only the positive prompt. The negative prompt is not changed.
Variables and mentions work. A {Label} variable in the pre or post text is resolved at run time, and a snippet is inserted as plain text.
Generate Script is the exception. On Generate Script, the text wraps the topic that arrives on its prompt input, not the Style Guide field.

How the pieces are joined

Nodaro drops the parts that are empty and puts a single space between the others. It adds no space when there is already one on either side, or when the next part starts with a comma, a period, a semicolon, a colon, an exclamation mark, a question mark or a closing parenthesis. Nodaro never trims your text, so you control the formatting.

Before the prompt	Prompt	After the prompt	Result
`Cinematic 35mm still of`	`a woman in Tokyo`	`, golden hour`	`Cinematic 35mm still of a woman in Tokyo, golden hour`
`RULES: no text`, then two line breaks	`a red shoe`	Empty	The rules, an empty line, then `a red shoe`
Empty	`a red shoe`	`Avoid clutter.`	`a red shoe Avoid clutter.`
`Portrait of {Character}`	Empty	Empty	`Portrait of Mira`, when the node labeled Character holds "Mira"

An empty prompt. When the prompt is empty, the pre and post text alone are the prompt. A preset can therefore carry its whole prompt in Before the prompt. This also replaces a node's built-in default for an empty prompt, such as the default question of Describe Image.

See the final prompt

Switch the prompt area of the node from Edit to Final, or click Show final prompt in the settings panel. The final view shows the whole prompt as it will run, and colours the pre and post text teal, with Pre/post text in the legend.

Pre and post text in presets

Presets save it. A preset stores the pre and post text with every other setting of the node.
Prompt presets replace it. Applying a preset that ships prompt content, a prompt or pre and post text, replaces the node's pre and post text. No leftover text from an earlier preset wraps the new prompt.
Settings presets keep it. A preset that only changes settings, such as the model and the aspect ratio, leaves your prompt and your pre and post text alone.

Many factory presets keep their instruction in pre and post text, so that your prompt stays yours:

Generate Image and Modify Image: the Reference Sheet boards, the Character Reference Grid, Label Elements and Apply Named Edit, the Face Privacy edits, the Portrait Transformations, the Stylized Subject presets and the Edits folder.
Relight & Switch: every operation preset.
Video to Video: the Restyle Looks.
Generate Video: Edit Video, which puts edit {video:1} as follows: before your sentence and a "keep everything else unchanged" instruction after it.

Which nodes have it

Every AI node that has a prompt: the image, video, audio, music, speech, text, script, vision, analysis and Suno nodes. The plain Text node has no pre and post text, because its whole content is already text you type.

From the API

Pre and post text are ordinary node data, so every surface that reads or writes a workflow carries them.

In workflow JSON, set data.promptPrefix and data.promptSuffix on the node. This works with the REST API, the SDK, the CLI and the MCP tools.
Per run of an app, without showing it to users, send inputOverrides with the node's id, for example { "<nodeId>": { "promptPrefix": "Cinematic 35mm still of" } }, to POST /v1/app/:slug/run. The SDK's client.apps.run, the MCP run_app tool and the CLI's --override flag accept the same overrides.
Discovery. GET /v1/nodes lists promptPrefix and promptSuffix for every node that supports them.
Single generation calls, such as POST /v1/generate-image, take one prompt. Join your text to it yourself, or pass a presetId to an MCP generation tool to wrap your prompt with the preset's pre and post text.

Prompt pre and post text