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---
stage: Create
group: Code Review
info: "To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/product/ux/technical-writing/#assignments"
type: reference
---
# Code Intelligence **(FREE ALL)**
> [Introduced](https://gitlab.com/groups/gitlab-org/-/epics/1576) in GitLab 13.1.
Code Intelligence adds code navigation features common to interactive
development environments (IDE), including:
- Type signatures and symbol documentation.
- Go-to definition.
Code Intelligence is built into GitLab and powered by [LSIF](https://lsif.dev/)
(Language Server Index Format), a file format for precomputed code
intelligence data. GitLab processes one LSIF file per project, and
Code Intelligence does not support different LSIF files per branch.
Follow epic [#4212, Code intelligence enhancements](https://gitlab.com/groups/gitlab-org/-/epics/4212)
for progress on upcoming enhancements.
NOTE:
You can automate this feature in your applications by using [Auto DevOps](../../topics/autodevops/index.md).
## Configuration
Enable code intelligence for a project by adding a GitLab CI/CD job to the project's
`.gitlab-ci.yml` which generates the LSIF artifact:
```yaml
code_navigation:
image: sourcegraph/lsif-go:v1
allow_failure: true # recommended
script:
- lsif-go
artifacts:
reports:
lsif: dump.lsif
```
The generated LSIF file size may be limited by
the [artifact application limits (`ci_max_artifact_size_lsif`)](../../administration/instance_limits.md#maximum-file-size-per-type-of-artifact),
default to 100 MB (configurable by an instance administrator).
After the job succeeds, code intelligence data can be viewed while browsing the code:
![Code intelligence](img/code_intelligence_v13_4.png)
## Find references
> - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/217392) in GitLab 13.2 [with a flag](../../administration/feature_flags.md) named `code_navigation_references`. Disabled by default.
> - [Enabled on GitLab.com and self-managed](https://gitlab.com/gitlab-org/gitlab/-/issues/225621) in GitLab 13.3. Feature flag `code_navigation_references` removed.
To find where a particular object is being used, you can see links to specific lines of code
under the **References** tab:
![Find references](img/code_intelligence_find_references_v13_3.png)
## Language support
Generating an LSIF file requires a language server indexer implementation for the
relevant language. View a complete list of [available LSIF indexers](https://lsif.dev/#implementations-server) on their website and
refer to their documentation to see how to generate an LSIF file for your specific language.
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