> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nika.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# max_len

> Contract, placement, related fields and source examples for this Nika YAML field.

[Language reference](/reference/language/overview) / `max_len`

## Meaning and placement

### typeExpr · oneOf · 2 → string

The schema declares this field at the location below.

| Property        | Declaration                                                    |
| --------------- | -------------------------------------------------------------- |
| Requirement     | Optional in this object                                        |
| Schema location | `/$defs/typeExpr/oneOf/2/properties/string/properties/max_len` |
| type            | "integer"                                                      |
| minimum         | 0                                                              |

**In the same object:** [min\_len](/reference/language/words/min_len) · [pattern](/reference/language/words/pattern)

[Schema source (use the pointer above)](https://github.com/supernovae-st/nika-spec/blob/c5ebbb7b862b68bc6cf7235efba61173b844afc6/schemas/workflow.schema.json)

## Examples

No matching source-template occurrence is recorded in this projection. [Write a workflow](/guides/templates) or consult the schema declaration above.

## Contract and implementation

This page projects the named specification revision. Check [released engine status](/reference/status) and [the validation workflow](/guides/agent-authoring) before running a file. An optional field is not evidence that every engine supports every value.

Canonical identity: `language:word:max_len`. Spec revision: [`c5ebbb7b862b`](https://github.com/supernovae-st/nika-spec/tree/c5ebbb7b862b68bc6cf7235efba61173b844afc6).

[How documentation stays connected](/reference/knowledge-system).