> For the complete documentation index, see [llms.txt](https://docs.contextual.io/documentation-and-resources/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.contextual.io/documentation-and-resources/tenants/tenant-logs/contextual-log-query-language-clql/keyword-searches.md).

# Keyword Searches

## CLQL Keyword Searches

Use **keyword searches** to filter log messages by specific metadata fields rather than searching all field values. Keyword fields are prefixed with `_`.

> **Tip:** Start typing `_` in the search box for autocomplete suggestions of available metadata fields.

Below are some supported keyword fields with examples:

### `_createdAt`

Filter by message timestamp.

```graphql
_createdAt >= 2024-12-13T14:00:21.185Z
_createdAt > 2024-12-13T14:00 _createdAt < 2024-12-13T15:00
```

### `_logId`

Filter by log ID.

```graphql
_logId = oVn9Pa9DzJuWtAA71sSz3y
```

### `_name`

Filter by name.

```graphql
_name = started
_name != finished
_name = get*details
_name = "Get User Details"
```

### `_logType`

Filter by log type.

```graphql
_logType = log-tap
```

### `_message`

Filter by message content.

```graphql
_message = foo@bar.baz
_message = https://*
_message = 2024-12-16T14:*
_message = 10.224.0.*
```

### `_level`

Filter by level.

```graphql
_level != info
_level in (warn, error)
_level in ["warn", "error"]
_level = error
```

### `_type`

Filter by message type.

```graphql
_type = json
```

### `_source`

Filter by source.

```graphql
_source = agent
```

### `_sessionId`

Filter by session ID.

```graphql
_sessionId = uoqtfXVzCAAgLLjw9gswnx
```

### `_correlationId`

Filter by correlation ID.

```graphql
_correlationId = qSq2ZW49Hq3RQFbuvWDzvS
```

### `_kind`

Filter by kind.

```graphql
_kind = execution
```

### `_subKind`

Filter by sub kind.

```graphql
_subKind = admin-api-agent*
```

### `_typeId`

Filter by type ID.

```graphql
_typeId = flow
```

### `_instance`

Filter by instance.

```graphql
_instance = http-api*
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

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

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.contextual.io/documentation-and-resources/tenants/tenant-logs/contextual-log-query-language-clql/keyword-searches.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

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.