# Text Manipulation Filters

### Truncate

For the description excerpt for each piece of content you can also add filters to truncate the text to a specific character count while also preserving the words or full sentences.

```
// Truncate to 200 characters of text(200), preserve words(true), add ellipses("...")
[[post.post_excerpt_text | truncate(200,true,"...")]]

//Truncate to 450 characters of text but preserve sentences
[[post.post_excerpt_text | truncate_sentence(450)]]
```


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.feedotter.com/set-up-your-own-template/advanced-template-information/filters/text-manipulation-filters.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.