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<!--- Hugo front matter used to generate the website version of this page:
linkTitle: CICD metrics
--->
# Semantic Conventions for CICD Metrics
**Status**: [Experimental][DocumentStatus]
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<!-- toc -->
- [CICD Metrics](#cicd-metrics)
- [Metric: `cicd.pipeline.run.duration`](#metric-cicdpipelinerunduration)
- [Metric: `cicd.pipeline.run.active`](#metric-cicdpipelinerunactive)
- [Metric: `cicd.worker.count`](#metric-cicdworkercount)
- [Metric: `cicd.pipeline.run.errors`](#metric-cicdpipelinerunerrors)
- [Metric: `cicd.system.errors`](#metric-cicdsystemerrors)
- [VCS Metrics](#vcs-metrics)
- [Metric: `vcs.change.count`](#metric-vcschangecount)
- [Metric: `vcs.change.duration`](#metric-vcschangeduration)
- [Metric: `vcs.change.time_to_approval`](#metric-vcschangetime_to_approval)
- [Metric: `vcs.repository.count`](#metric-vcsrepositorycount)
- [Metric: `vcs.ref.count`](#metric-vcsrefcount)
- [Metric: `vcs.ref.lines_delta`](#metric-vcsreflines_delta)
- [Metric: `vcs.ref.revisions_delta`](#metric-vcsrefrevisions_delta)
- [Metric: `vcs.ref.time`](#metric-vcsreftime)
- [Metric: `vcs.contributor.count`](#metric-vcscontributorcount)
<!-- tocstop -->
## CICD Metrics
The conventions described in this section are specific to Continuous Integration / Continuous Deployment (CICD) systems.
**Disclaimer:** These are initial CICD metrics and attributes
but more may be added in the future.
### Metric: `cicd.pipeline.run.duration`
This metric is [recommended][MetricRecommended].
<!-- semconv metric.cicd.pipeline.run.duration -->
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| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `cicd.pipeline.run.duration` | Histogram | `s` | Duration of a pipeline run grouped by pipeline, state and result. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`cicd.pipeline.name`](/docs/attributes-registry/cicd.md) | string | The human readable name of the pipeline within a CI/CD system. | `Build and Test`; `Lint`; `Deploy Go Project`; `deploy_to_environment` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`cicd.pipeline.run.state`](/docs/attributes-registry/cicd.md) | string | The pipeline run goes through these states during its lifecycle. | `pending`; `executing`; `finalizing` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`cicd.pipeline.result`](/docs/attributes-registry/cicd.md) | string | The result of a pipeline run. | `success`; `failure`; `timeout`; `skipped` | `Conditionally Required` [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`error.type`](/docs/attributes-registry/error.md) | string | Describes a class of error the operation ended with. [2] | `timeout`; `java.net.UnknownHostException`; `server_certificate_invalid`; `500` | `Conditionally Required` If and only if the pipeline run failed. | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
**[1] `cicd.pipeline.result`:** If and only if the pipeline run result has been set during that state.
**[2] `error.type`:** The `error.type` SHOULD be predictable, and SHOULD have low cardinality.
When `error.type` is set to a type (e.g., an exception type), its
canonical class name identifying the type within the artifact SHOULD be used.
Instrumentations SHOULD document the list of errors they report.
The cardinality of `error.type` within one instrumentation library SHOULD be low.
Telemetry consumers that aggregate data from multiple instrumentation libraries and applications
should be prepared for `error.type` to have high cardinality at query time when no
additional filters are applied.
If the operation has completed successfully, instrumentations SHOULD NOT set `error.type`.
If a specific domain defines its own set of error identifiers (such as HTTP or gRPC status codes),
it's RECOMMENDED to:
- Use a domain-specific attribute
- Set `error.type` to capture all errors, regardless of whether they are defined within the domain-specific set or not.
---
`cicd.pipeline.result` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `cancellation` | The pipeline run was cancelled, eg. by a user manually cancelling the pipeline run. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `error` | The pipeline run failed due to an error in the CICD system, eg. due to the worker being killed. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `failure` | The pipeline run did not finish successfully, eg. due to a compile error or a failing test. Such failures are usually detected by non-zero exit codes of the tools executed in the pipeline run. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `skip` | The pipeline run was skipped, eg. due to a precondition not being met. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `success` | The pipeline run finished successfully. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `timeout` | A timeout caused the pipeline run to be interrupted. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
---
`cicd.pipeline.run.state` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `executing` | The executing state spans the execution of any run tasks (eg. build, test). | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `finalizing` | The finalizing state spans from when the run has finished executing (eg. cleanup of run resources). | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `pending` | The run pending state spans from the event triggering the pipeline run until the execution of the run starts (eg. time spent in a queue, provisioning agents, creating run resources). | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
---
`error.type` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `_OTHER` | A fallback error value to be used when the instrumentation doesn't define a custom value. | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
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### Metric: `cicd.pipeline.run.active`
This metric is [recommended][MetricRecommended].
<!-- semconv metric.cicd.pipeline.run.active -->
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| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `cicd.pipeline.run.active` | UpDownCounter | `{run}` | The number of pipeline runs currently active in the system by state. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`cicd.pipeline.name`](/docs/attributes-registry/cicd.md) | string | The human readable name of the pipeline within a CI/CD system. | `Build and Test`; `Lint`; `Deploy Go Project`; `deploy_to_environment` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`cicd.pipeline.run.state`](/docs/attributes-registry/cicd.md) | string | The pipeline run goes through these states during its lifecycle. | `pending`; `executing`; `finalizing` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
---
`cicd.pipeline.run.state` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `executing` | The executing state spans the execution of any run tasks (eg. build, test). | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `finalizing` | The finalizing state spans from when the run has finished executing (eg. cleanup of run resources). | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `pending` | The run pending state spans from the event triggering the pipeline run until the execution of the run starts (eg. time spent in a queue, provisioning agents, creating run resources). | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
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<!-- endsemconv -->
### Metric: `cicd.worker.count`
This metric is [recommended][MetricRecommended].
<!-- semconv metric.cicd.worker.count -->
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| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `cicd.worker.count` | UpDownCounter | `{count}` | The number of workers on the CICD system by state. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`cicd.worker.state`](/docs/attributes-registry/cicd.md) | string | The state of a CICD worker / agent. | `idle`; `busy`; `down` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
---
`cicd.worker.state` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `available` | The worker is not performing work for the CICD system. It is available to the CICD system to perform work on (online / idle). [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `busy` | The worker is performing work for the CICD system. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `offline` | The worker is not available to the CICD system (disconnected / down). | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1]:** Pipelines might have conditions on which workers they are able to run so not every worker might be available to every pipeline.
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### Metric: `cicd.pipeline.run.errors`
This metric is [recommended][MetricRecommended].
<!-- semconv metric.cicd.pipeline.run.errors -->
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| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `cicd.pipeline.run.errors` | Counter | `{error}` | The number of errors encountered in pipeline runs (eg. compile, test failures). [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1]:** There might be errors in a pipeline run that are non fatal (eg. they are suppressed) or in a parallel stage multiple stages could have a fatal error.
This means that this error count might not be the same as the count of metric `cicd.pipeline.run.duration` with run result `failure`.
| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`cicd.pipeline.name`](/docs/attributes-registry/cicd.md) | string | The human readable name of the pipeline within a CI/CD system. | `Build and Test`; `Lint`; `Deploy Go Project`; `deploy_to_environment` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`error.type`](/docs/attributes-registry/error.md) | string | Describes a class of error the operation ended with. [1] | `timeout`; `java.net.UnknownHostException`; `server_certificate_invalid`; `500` | `Required` | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
**[1] `error.type`:** The `error.type` SHOULD be predictable, and SHOULD have low cardinality.
When `error.type` is set to a type (e.g., an exception type), its
canonical class name identifying the type within the artifact SHOULD be used.
Instrumentations SHOULD document the list of errors they report.
The cardinality of `error.type` within one instrumentation library SHOULD be low.
Telemetry consumers that aggregate data from multiple instrumentation libraries and applications
should be prepared for `error.type` to have high cardinality at query time when no
additional filters are applied.
If the operation has completed successfully, instrumentations SHOULD NOT set `error.type`.
If a specific domain defines its own set of error identifiers (such as HTTP or gRPC status codes),
it's RECOMMENDED to:
- Use a domain-specific attribute
- Set `error.type` to capture all errors, regardless of whether they are defined within the domain-specific set or not.
---
`error.type` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `_OTHER` | A fallback error value to be used when the instrumentation doesn't define a custom value. | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
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<!-- endsemconv -->
### Metric: `cicd.system.errors`
This metric is [recommended][MetricRecommended].
<!-- semconv metric.cicd.system.errors -->
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| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `cicd.system.errors` | Counter | `{error}` | The number of errors in a component of the CICD system (eg. controller, scheduler, agent). [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1]:** Errors in pipeline run execution are explicitly excluded. Ie a test failure is not counted in this metric.
| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`cicd.system.component`](/docs/attributes-registry/cicd.md) | string | The name of a component of the CICD system. | `controller`; `scheduler`; `agent` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`error.type`](/docs/attributes-registry/error.md) | string | Describes a class of error the operation ended with. [1] | `timeout`; `java.net.UnknownHostException`; `server_certificate_invalid`; `500` | `Required` | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
**[1] `error.type`:** The `error.type` SHOULD be predictable, and SHOULD have low cardinality.
When `error.type` is set to a type (e.g., an exception type), its
canonical class name identifying the type within the artifact SHOULD be used.
Instrumentations SHOULD document the list of errors they report.
The cardinality of `error.type` within one instrumentation library SHOULD be low.
Telemetry consumers that aggregate data from multiple instrumentation libraries and applications
should be prepared for `error.type` to have high cardinality at query time when no
additional filters are applied.
If the operation has completed successfully, instrumentations SHOULD NOT set `error.type`.
If a specific domain defines its own set of error identifiers (such as HTTP or gRPC status codes),
it's RECOMMENDED to:
- Use a domain-specific attribute
- Set `error.type` to capture all errors, regardless of whether they are defined within the domain-specific set or not.
---
`error.type` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `_OTHER` | A fallback error value to be used when the instrumentation doesn't define a custom value. | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
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<!-- endsemconv -->
## VCS Metrics
The conventions described in this section are specific to Version Control Systems.
**Disclaimer:** These are initial VCS metrics and attributes
but more may be added in the future.
### Metric: `vcs.change.count`
This metric is [recommended][MetricRecommended].
<!-- semconv metric.vcs.change.count -->
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| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `vcs.change.count` | UpDownCounter | `{change}` | The number of changes (pull requests/merge requests/changelists) in a repository, categorized by their state (e.g. open or merged) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`vcs.change.state`](/docs/attributes-registry/vcs.md) | string | The state of the change (pull request/merge request/changelist). | `open`; `closed`; `merged` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.url.full`](/docs/attributes-registry/vcs.md) | string | The [canonical URL](https://support.google.com/webmasters/answer/10347851?hl=en#:~:text=A%20canonical%20URL%20is%20the,Google%20chooses%20one%20as%20canonical.) of the repository providing the complete HTTP(S) address in order to locate and identify the repository through a browser. [1] | `https://github.com/opentelemetry/open-telemetry-collector-contrib`; `https://gitlab.com/my-org/my-project/my-projects-project/repo` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.name`](/docs/attributes-registry/vcs.md) | string | The human readable name of the repository. It SHOULD NOT include any additional identifier like Group/SubGroup in GitLab or organization in GitHub. [2] | `semantic-conventions`; `my-cool-repo` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1] `vcs.repository.url.full`:** In Git Version Control Systems, the canonical URL SHOULD NOT include
the `.git` extension.
**[2] `vcs.repository.name`:** Due to it only being the name, it can clash with forks of the same
repository if collecting telemetry across multiple orgs or groups in
the same backends.
---
`vcs.change.state` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `closed` | Closed means the merge request has been closed without merging. This can happen for various reasons, such as the changes being deemed unnecessary, the issue being resolved in another way, or the author deciding to withdraw the request. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `merged` | Merged indicates that the change has been successfully integrated into the target codebase. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `open` | Open means the change is currently active and under review. It hasn't been merged into the target branch yet, and it's still possible to make changes or add comments. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `wip` | WIP (work-in-progress, draft) means the change is still in progress and not yet ready for a full review. It might still undergo significant changes. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
<!-- markdownlint-restore -->
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<!-- endsemconv -->
### Metric: `vcs.change.duration`
This metric is [recommended][MetricRecommended].
<!-- semconv metric.vcs.change.duration -->
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| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `vcs.change.duration` | Gauge | `s` | The time duration a change (pull request/merge request/changelist) has been in a given state. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`vcs.change.state`](/docs/attributes-registry/vcs.md) | string | The state of the change (pull request/merge request/changelist). | `open`; `closed`; `merged` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.ref.head.name`](/docs/attributes-registry/vcs.md) | string | The name of the [reference](https://git-scm.com/docs/gitglossary#def_ref) such as **branch** or **tag** in the repository. | `my-feature-branch`; `tag-1-test` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.url.full`](/docs/attributes-registry/vcs.md) | string | The [canonical URL](https://support.google.com/webmasters/answer/10347851?hl=en#:~:text=A%20canonical%20URL%20is%20the,Google%20chooses%20one%20as%20canonical.) of the repository providing the complete HTTP(S) address in order to locate and identify the repository through a browser. [1] | `https://github.com/opentelemetry/open-telemetry-collector-contrib`; `https://gitlab.com/my-org/my-project/my-projects-project/repo` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.name`](/docs/attributes-registry/vcs.md) | string | The human readable name of the repository. It SHOULD NOT include any additional identifier like Group/SubGroup in GitLab or organization in GitHub. [2] | `semantic-conventions`; `my-cool-repo` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1] `vcs.repository.url.full`:** In Git Version Control Systems, the canonical URL SHOULD NOT include
the `.git` extension.
**[2] `vcs.repository.name`:** Due to it only being the name, it can clash with forks of the same
repository if collecting telemetry across multiple orgs or groups in
the same backends.
---
`vcs.change.state` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `closed` | Closed means the merge request has been closed without merging. This can happen for various reasons, such as the changes being deemed unnecessary, the issue being resolved in another way, or the author deciding to withdraw the request. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `merged` | Merged indicates that the change has been successfully integrated into the target codebase. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `open` | Open means the change is currently active and under review. It hasn't been merged into the target branch yet, and it's still possible to make changes or add comments. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `wip` | WIP (work-in-progress, draft) means the change is still in progress and not yet ready for a full review. It might still undergo significant changes. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
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<!-- endsemconv -->
### Metric: `vcs.change.time_to_approval`
This metric is [recommended][MetricRecommended].
<!-- semconv metric.vcs.change.time_to_approval -->
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| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `vcs.change.time_to_approval` | Gauge | `s` | The amount of time since its creation it took a change (pull request/merge request/changelist) to get the first approval | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`vcs.ref.head.name`](/docs/attributes-registry/vcs.md) | string | The name of the [reference](https://git-scm.com/docs/gitglossary#def_ref) such as **branch** or **tag** in the repository. | `my-feature-branch`; `tag-1-test` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.url.full`](/docs/attributes-registry/vcs.md) | string | The [canonical URL](https://support.google.com/webmasters/answer/10347851?hl=en#:~:text=A%20canonical%20URL%20is%20the,Google%20chooses%20one%20as%20canonical.) of the repository providing the complete HTTP(S) address in order to locate and identify the repository through a browser. [1] | `https://github.com/opentelemetry/open-telemetry-collector-contrib`; `https://gitlab.com/my-org/my-project/my-projects-project/repo` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.name`](/docs/attributes-registry/vcs.md) | string | The human readable name of the repository. It SHOULD NOT include any additional identifier like Group/SubGroup in GitLab or organization in GitHub. [2] | `semantic-conventions`; `my-cool-repo` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1] `vcs.repository.url.full`:** In Git Version Control Systems, the canonical URL SHOULD NOT include
the `.git` extension.
**[2] `vcs.repository.name`:** Due to it only being the name, it can clash with forks of the same
repository if collecting telemetry across multiple orgs or groups in
the same backends.
<!-- markdownlint-restore -->
<!-- prettier-ignore-end -->
<!-- END AUTOGENERATED TEXT -->
<!-- endsemconv -->
### Metric: `vcs.repository.count`
This metric is [recommended][MetricRecommended].
<!-- semconv metric.vcs.repository.count -->
<!-- NOTE: THIS TEXT IS AUTOGENERATED. DO NOT EDIT BY HAND. -->
<!-- see templates/registry/markdown/snippet.md.j2 -->
<!-- prettier-ignore-start -->
<!-- markdownlint-capture -->
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| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `vcs.repository.count` | UpDownCounter | `{repository}` | The number of repositories in an organization | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
<!-- markdownlint-restore -->
<!-- prettier-ignore-end -->
<!-- END AUTOGENERATED TEXT -->
<!-- endsemconv -->
### Metric: `vcs.ref.count`
This metric is [recommended][MetricRecommended].
<!-- semconv metric.vcs.ref.count -->
<!-- NOTE: THIS TEXT IS AUTOGENERATED. DO NOT EDIT BY HAND. -->
<!-- see templates/registry/markdown/snippet.md.j2 -->
<!-- prettier-ignore-start -->
<!-- markdownlint-capture -->
<!-- markdownlint-disable -->
| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `vcs.ref.count` | UpDownCounter | `{ref}` | The number of refs of type branch or tag in a repository | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`vcs.ref.type`](/docs/attributes-registry/vcs.md) | string | The type of the [reference](https://git-scm.com/docs/gitglossary#def_ref) in the repository. | `branch`; `tag` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.url.full`](/docs/attributes-registry/vcs.md) | string | The [canonical URL](https://support.google.com/webmasters/answer/10347851?hl=en#:~:text=A%20canonical%20URL%20is%20the,Google%20chooses%20one%20as%20canonical.) of the repository providing the complete HTTP(S) address in order to locate and identify the repository through a browser. [1] | `https://github.com/opentelemetry/open-telemetry-collector-contrib`; `https://gitlab.com/my-org/my-project/my-projects-project/repo` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.name`](/docs/attributes-registry/vcs.md) | string | The human readable name of the repository. It SHOULD NOT include any additional identifier like Group/SubGroup in GitLab or organization in GitHub. [2] | `semantic-conventions`; `my-cool-repo` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1] `vcs.repository.url.full`:** In Git Version Control Systems, the canonical URL SHOULD NOT include
the `.git` extension.
**[2] `vcs.repository.name`:** Due to it only being the name, it can clash with forks of the same
repository if collecting telemetry across multiple orgs or groups in
the same backends.
---
`vcs.ref.type` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `branch` | [branch](https://git-scm.com/docs/gitglossary#Documentation/gitglossary.txt-aiddefbranchabranch) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `tag` | [tag](https://git-scm.com/docs/gitglossary#Documentation/gitglossary.txt-aiddeftagatag) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
<!-- markdownlint-restore -->
<!-- prettier-ignore-end -->
<!-- END AUTOGENERATED TEXT -->
<!-- endsemconv -->
### Metric: `vcs.ref.lines_delta`
This metric is [recommended][MetricRecommended].
<!-- semconv metric.vcs.ref.lines_delta -->
<!-- NOTE: THIS TEXT IS AUTOGENERATED. DO NOT EDIT BY HAND. -->
<!-- see templates/registry/markdown/snippet.md.j2 -->
<!-- prettier-ignore-start -->
<!-- markdownlint-capture -->
<!-- markdownlint-disable -->
| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `vcs.ref.lines_delta` | Gauge | `{line}` | The number of lines added/removed in a ref (branch) relative to the ref from the `vcs.ref.base.name` attribute [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1]:** This metric should be reported for each `vcs.line_change.type` value. For example if a ref added 3 lines and removed 2 lines,
instrumentation SHOULD report two measurements: 3 and 2 (both positive numbers).
If number of lines added/removed should be calculated from the start of time, then `vcs.ref.base.name` SHOULD be set to an empty string.
| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`vcs.line_change.type`](/docs/attributes-registry/vcs.md) | string | The type of line change being measured on a branch or change. | `added`; `removed` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.ref.base.name`](/docs/attributes-registry/vcs.md) | string | The name of the [reference](https://git-scm.com/docs/gitglossary#def_ref) such as **branch** or **tag** in the repository. | `my-feature-branch`; `tag-1-test` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.ref.base.type`](/docs/attributes-registry/vcs.md) | string | The type of the [reference](https://git-scm.com/docs/gitglossary#def_ref) in the repository. | `branch`; `tag` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.ref.head.name`](/docs/attributes-registry/vcs.md) | string | The name of the [reference](https://git-scm.com/docs/gitglossary#def_ref) such as **branch** or **tag** in the repository. | `my-feature-branch`; `tag-1-test` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.ref.head.type`](/docs/attributes-registry/vcs.md) | string | The type of the [reference](https://git-scm.com/docs/gitglossary#def_ref) in the repository. | `branch`; `tag` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.url.full`](/docs/attributes-registry/vcs.md) | string | The [canonical URL](https://support.google.com/webmasters/answer/10347851?hl=en#:~:text=A%20canonical%20URL%20is%20the,Google%20chooses%20one%20as%20canonical.) of the repository providing the complete HTTP(S) address in order to locate and identify the repository through a browser. [1] | `https://github.com/opentelemetry/open-telemetry-collector-contrib`; `https://gitlab.com/my-org/my-project/my-projects-project/repo` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.change.id`](/docs/attributes-registry/vcs.md) | string | The ID of the change (pull request/merge request/changelist) if applicable. This is usually a unique (within repository) identifier generated by the VCS system. | `123` | `Conditionally Required` if a change is associate with the ref. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.name`](/docs/attributes-registry/vcs.md) | string | The human readable name of the repository. It SHOULD NOT include any additional identifier like Group/SubGroup in GitLab or organization in GitHub. [2] | `semantic-conventions`; `my-cool-repo` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1] `vcs.repository.url.full`:** In Git Version Control Systems, the canonical URL SHOULD NOT include
the `.git` extension.
**[2] `vcs.repository.name`:** Due to it only being the name, it can clash with forks of the same
repository if collecting telemetry across multiple orgs or groups in
the same backends.
---
`vcs.line_change.type` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `added` | How many lines were added. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `removed` | How many lines were removed. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
---
`vcs.ref.base.type` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `branch` | [branch](https://git-scm.com/docs/gitglossary#Documentation/gitglossary.txt-aiddefbranchabranch) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `tag` | [tag](https://git-scm.com/docs/gitglossary#Documentation/gitglossary.txt-aiddeftagatag) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
---
`vcs.ref.head.type` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `branch` | [branch](https://git-scm.com/docs/gitglossary#Documentation/gitglossary.txt-aiddefbranchabranch) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `tag` | [tag](https://git-scm.com/docs/gitglossary#Documentation/gitglossary.txt-aiddeftagatag) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
<!-- markdownlint-restore -->
<!-- prettier-ignore-end -->
<!-- END AUTOGENERATED TEXT -->
<!-- endsemconv -->
### Metric: `vcs.ref.revisions_delta`
This metric is [recommended][MetricRecommended].
<!-- semconv metric.vcs.ref.revisions_delta -->
<!-- NOTE: THIS TEXT IS AUTOGENERATED. DO NOT EDIT BY HAND. -->
<!-- see templates/registry/markdown/snippet.md.j2 -->
<!-- prettier-ignore-start -->
<!-- markdownlint-capture -->
<!-- markdownlint-disable -->
| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `vcs.ref.revisions_delta` | Gauge | `{revision}` | The number of revisions (commits) a ref (branch) is ahead/behind the branch from the `vcs.ref.base.name` attribute [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1]:** This metric should be reported for each `vcs.revision_delta.direction` value. For example if branch `a` is 3 commits behind and 2 commits ahead of `trunk`,
instrumentation SHOULD report two measurements: 3 and 2 (both positive numbers) and `vcs.ref.base.name` is set to `trunk`.
| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`vcs.ref.base.name`](/docs/attributes-registry/vcs.md) | string | The name of the [reference](https://git-scm.com/docs/gitglossary#def_ref) such as **branch** or **tag** in the repository. | `my-feature-branch`; `tag-1-test` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.ref.base.type`](/docs/attributes-registry/vcs.md) | string | The type of the [reference](https://git-scm.com/docs/gitglossary#def_ref) in the repository. | `branch`; `tag` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.ref.head.name`](/docs/attributes-registry/vcs.md) | string | The name of the [reference](https://git-scm.com/docs/gitglossary#def_ref) such as **branch** or **tag** in the repository. | `my-feature-branch`; `tag-1-test` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.ref.head.type`](/docs/attributes-registry/vcs.md) | string | The type of the [reference](https://git-scm.com/docs/gitglossary#def_ref) in the repository. | `branch`; `tag` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.url.full`](/docs/attributes-registry/vcs.md) | string | The [canonical URL](https://support.google.com/webmasters/answer/10347851?hl=en#:~:text=A%20canonical%20URL%20is%20the,Google%20chooses%20one%20as%20canonical.) of the repository providing the complete HTTP(S) address in order to locate and identify the repository through a browser. [1] | `https://github.com/opentelemetry/open-telemetry-collector-contrib`; `https://gitlab.com/my-org/my-project/my-projects-project/repo` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.revision_delta.direction`](/docs/attributes-registry/vcs.md) | string | The type of revision comparison. | `ahead`; `behind` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.change.id`](/docs/attributes-registry/vcs.md) | string | The ID of the change (pull request/merge request/changelist) if applicable. This is usually a unique (within repository) identifier generated by the VCS system. | `123` | `Conditionally Required` if a change is associate with the ref. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.name`](/docs/attributes-registry/vcs.md) | string | The human readable name of the repository. It SHOULD NOT include any additional identifier like Group/SubGroup in GitLab or organization in GitHub. [2] | `semantic-conventions`; `my-cool-repo` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1] `vcs.repository.url.full`:** In Git Version Control Systems, the canonical URL SHOULD NOT include
the `.git` extension.
**[2] `vcs.repository.name`:** Due to it only being the name, it can clash with forks of the same
repository if collecting telemetry across multiple orgs or groups in
the same backends.
---
`vcs.ref.base.type` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `branch` | [branch](https://git-scm.com/docs/gitglossary#Documentation/gitglossary.txt-aiddefbranchabranch) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `tag` | [tag](https://git-scm.com/docs/gitglossary#Documentation/gitglossary.txt-aiddeftagatag) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
---
`vcs.ref.head.type` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `branch` | [branch](https://git-scm.com/docs/gitglossary#Documentation/gitglossary.txt-aiddefbranchabranch) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `tag` | [tag](https://git-scm.com/docs/gitglossary#Documentation/gitglossary.txt-aiddeftagatag) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
---
`vcs.revision_delta.direction` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `ahead` | How many revisions the change is ahead of the target ref. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `behind` | How many revisions the change is behind the target ref. | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
<!-- markdownlint-restore -->
<!-- prettier-ignore-end -->
<!-- END AUTOGENERATED TEXT -->
<!-- endsemconv -->
### Metric: `vcs.ref.time`
This metric is [recommended][MetricRecommended].
<!-- semconv metric.vcs.ref.time -->
<!-- NOTE: THIS TEXT IS AUTOGENERATED. DO NOT EDIT BY HAND. -->
<!-- see templates/registry/markdown/snippet.md.j2 -->
<!-- prettier-ignore-start -->
<!-- markdownlint-capture -->
<!-- markdownlint-disable -->
| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `vcs.ref.time` | Gauge | `s` | Time a ref (branch) created from the default branch (trunk) has existed. The `ref.type` attribute will always be `branch` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`vcs.ref.head.name`](/docs/attributes-registry/vcs.md) | string | The name of the [reference](https://git-scm.com/docs/gitglossary#def_ref) such as **branch** or **tag** in the repository. | `my-feature-branch`; `tag-1-test` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.ref.head.type`](/docs/attributes-registry/vcs.md) | string | The type of the [reference](https://git-scm.com/docs/gitglossary#def_ref) in the repository. | `branch`; `tag` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.url.full`](/docs/attributes-registry/vcs.md) | string | The [canonical URL](https://support.google.com/webmasters/answer/10347851?hl=en#:~:text=A%20canonical%20URL%20is%20the,Google%20chooses%20one%20as%20canonical.) of the repository providing the complete HTTP(S) address in order to locate and identify the repository through a browser. [1] | `https://github.com/opentelemetry/open-telemetry-collector-contrib`; `https://gitlab.com/my-org/my-project/my-projects-project/repo` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.name`](/docs/attributes-registry/vcs.md) | string | The human readable name of the repository. It SHOULD NOT include any additional identifier like Group/SubGroup in GitLab or organization in GitHub. [2] | `semantic-conventions`; `my-cool-repo` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1] `vcs.repository.url.full`:** In Git Version Control Systems, the canonical URL SHOULD NOT include
the `.git` extension.
**[2] `vcs.repository.name`:** Due to it only being the name, it can clash with forks of the same
repository if collecting telemetry across multiple orgs or groups in
the same backends.
---
`vcs.ref.head.type` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
| `branch` | [branch](https://git-scm.com/docs/gitglossary#Documentation/gitglossary.txt-aiddefbranchabranch) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `tag` | [tag](https://git-scm.com/docs/gitglossary#Documentation/gitglossary.txt-aiddeftagatag) | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
<!-- markdownlint-restore -->
<!-- prettier-ignore-end -->
<!-- END AUTOGENERATED TEXT -->
<!-- endsemconv -->
### Metric: `vcs.contributor.count`
This metric is [opt-in][MetricOptIn].
<!-- semconv metric.vcs.contributor.count -->
<!-- NOTE: THIS TEXT IS AUTOGENERATED. DO NOT EDIT BY HAND. -->
<!-- see templates/registry/markdown/snippet.md.j2 -->
<!-- prettier-ignore-start -->
<!-- markdownlint-capture -->
<!-- markdownlint-disable -->
| Name | Instrument Type | Unit (UCUM) | Description | Stability |
| -------- | --------------- | ----------- | -------------- | --------- |
| `vcs.contributor.count` | Gauge | `{contributor}` | The number of unique contributors to a repository | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
|---|---|---|---|---|---|
| [`vcs.repository.url.full`](/docs/attributes-registry/vcs.md) | string | The [canonical URL](https://support.google.com/webmasters/answer/10347851?hl=en#:~:text=A%20canonical%20URL%20is%20the,Google%20chooses%20one%20as%20canonical.) of the repository providing the complete HTTP(S) address in order to locate and identify the repository through a browser. [1] | `https://github.com/opentelemetry/open-telemetry-collector-contrib`; `https://gitlab.com/my-org/my-project/my-projects-project/repo` | `Required` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| [`vcs.repository.name`](/docs/attributes-registry/vcs.md) | string | The human readable name of the repository. It SHOULD NOT include any additional identifier like Group/SubGroup in GitLab or organization in GitHub. [2] | `semantic-conventions`; `my-cool-repo` | `Recommended` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
**[1] `vcs.repository.url.full`:** In Git Version Control Systems, the canonical URL SHOULD NOT include
the `.git` extension.
**[2] `vcs.repository.name`:** Due to it only being the name, it can clash with forks of the same
repository if collecting telemetry across multiple orgs or groups in
the same backends.
<!-- markdownlint-restore -->
<!-- prettier-ignore-end -->
<!-- END AUTOGENERATED TEXT -->
<!-- endsemconv -->
[DocumentStatus]: https://opentelemetry.io/docs/specs/otel/document-status
[MetricOptIn]: /docs/general/metric-requirement-level.md#opt-in
[MetricRecommended]: /docs/general/metric-requirement-level.md#recommended
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