diff --git a/.codecov.yml b/.codecov.yml
index 54f8a414e..6c772a419 100644
--- a/.codecov.yml
+++ b/.codecov.yml
@@ -7,7 +7,7 @@ coverage:
   # https://docs.codecov.io/docs/commit-status
   status:
     # TODO: re-enable patch in the future
-    patch: off
+    patch: false
     project:
       default:
         # minimum coverage ratio that the commit must meet to be considered a success
diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index b3a2df32d..358f0f101 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -1,14 +1,15 @@
+# yamllint disable rule:line-length
 name: docker
-on:
+on: # yamllint disable-line rule:truthy
   push:
     branches:
-    - master
-    - dev
-    - 'experimental/**'
+      - master
+      - dev
+      - 'experimental/**'
     tags:
-    - v*
+      - v*
   schedule:
-  - cron: '0 4 * * *'  # nightlies at 4am UTC
+    - cron: '0 4 * * *'  # nightlies at 4am UTC
 env:
   TEST_TAG: hathor-core:test
 jobs:
@@ -20,114 +21,114 @@ jobs:
       fail-fast: false
       matrix:
         python-impl:
-        - python
-        - pypy
+          - python
+          - pypy
         python-version:
-        - '3.8'
-        - '3.9'
-        - '3.10'
-        - '3.11'
+          - '3.8'
+          - '3.9'
+          - '3.10'
+          - '3.11'
         exclude:
-        # XXX: neither pypy-3.10 nor pypy-3.11 exist yet, maybe pypy-3.10 will be out on PyPy v7.3.10
-        - python-impl: pypy
-          python-version: '3.10'
-        - python-impl: pypy
-          python-version: '3.11'
+          # XXX: neither pypy-3.10 nor pypy-3.11 exist yet, maybe pypy-3.10 will be out on PyPy v7.3.10
+          - python-impl: pypy
+            python-version: '3.10'
+          - python-impl: pypy
+            python-version: '3.11'
     steps:
-    - name: Checkout
-      uses: actions/checkout@v3
-    - name: Prepare base version
-      id: prep
-      run: |
-        export GITHUB_REF='${{ github.ref }}'
-        export GITHUB_EVENT_NAME='${{ github.event_name }}'
-        export GITHUB_SHA='${{ github.sha }}'
-        export GITHUB_EVENT_DEFAULT_BRANCH='${{ github.event.repository.default_branch }}'
-        export GITHUB_EVENT_NUMBER='${{ github.event.number }}'
-        export MATRIX_PYTHON_IMPL='${{ matrix.python-impl }}'
-        export MATRIX_PYTHON_VERSION='${{ matrix.python-version }}'
-        export SECRETS_DOCKERHUB_IMAGE='${{ secrets.DOCKERHUB_IMAGE }}'
-        export SECRETS_GHCR_IMAGE='${{ secrets.GHCR_IMAGE }}'
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Prepare base version
+        id: prep
+        run: |
+          export GITHUB_REF='${{ github.ref }}'
+          export GITHUB_EVENT_NAME='${{ github.event_name }}'
+          export GITHUB_SHA='${{ github.sha }}'
+          export GITHUB_EVENT_DEFAULT_BRANCH='${{ github.event.repository.default_branch }}'
+          export GITHUB_EVENT_NUMBER='${{ github.event.number }}'
+          export MATRIX_PYTHON_IMPL='${{ matrix.python-impl }}'
+          export MATRIX_PYTHON_VERSION='${{ matrix.python-version }}'
+          export SECRETS_DOCKERHUB_IMAGE='${{ secrets.DOCKERHUB_IMAGE }}'
+          export SECRETS_GHCR_IMAGE='${{ secrets.GHCR_IMAGE }}'
 
-        python extras/github/docker.py
-    - name: Check version
-      if: steps.prep.outputs.check-version
-      run: |
-        make check-version VERSION='${{ steps.prep.outputs.check-version }}'
-    - name: Set up QEMU  # arm64 is not available natively
-      uses: docker/setup-qemu-action@v2
-    - name: Set up Docker Buildx
-      uses: docker/setup-buildx-action@v2
-      with:
-        version: latest
-        install: true
-        driver-opts: network=host
-    - name: Login to DockerHub
-      uses: docker/login-action@v2
-      if: steps.prep.outputs.login-dockerhub == 'true'
-      with:
-        username: ${{ secrets.DOCKERHUB_USERNAME }}
-        password: ${{ secrets.DOCKERHUB_TOKEN }}
-    - name: Login to GitHub Container Registry
-      uses: docker/login-action@v2
-      if: steps.prep.outputs.login-ghcr == 'true'
-      with:
-        registry: ghcr.io
-        username: ${{ github.actor }}
-        password: ${{ secrets.GITHUB_TOKEN }}
-    - name: Cache Docker layers
-      uses: actions/cache@v3
-      if: steps.prep_base_version.outputs.is-nightly == 'false'
-      with:
-        path: /tmp/.buildx-cache
-        # this key is setup such that every branch has its cache and new branches can reuse master's cache, but not the other way around
-        key: ${{ runner.os }}-buildx-${{ matrix.python-impl }}${{ matrix.python-version }}-${{ github.head_ref || github.ref }}-${{ github.sha }}
-        restore-keys: |
-          ${{ runner.os }}-buildx-${{ matrix.python-impl }}${{ matrix.python-version }}-refs/heads/master-
-    - name: Build and export to Docker
-      uses: docker/build-push-action@v3
-      with:
-        context: .
-        file: ${{ steps.prep.outputs.dockerfile }}
-        build-args: PYTHON=${{ matrix.python-version }}
-        pull: true
-        load: true
-        tags: ${{ env.TEST_TAG }}
-        cache-from: type=local,src=/tmp/.buildx-cache
-        cache-to: type=local,dest=/tmp/.buildx-cache
-    - name: Test image
-      run: docker run --rm ${{ env.TEST_TAG }} quick_test --data / --testnet
-    - name: Build and push
-      uses: docker/build-push-action@v3
-      continue-on-error: ${{ matrix.python-impl == 'pypy' }}  # PyPy is not first-class and has been causing some build failures
-      if: ${{ !env.ACT }}  # Skip this step when testing locally with https://github.com/nektos/act
-      with:
-        context: .
-        file: ${{ steps.prep.outputs.dockerfile }}
-        build-args: PYTHON=${{ matrix.python-version }}
-        platforms: linux/amd64,linux/arm64
-        pull: true
-        push: ${{ github.event_name != 'pull_request' && steps.prep.outputs.push }}
-        tags: ${{ steps.prep.outputs.tags }}
-        # see: https://github.com/opencontainers/image-spec/blob/master/annotations.md
-        labels: |
-          org.opencontainers.image.title=${{ github.event.repository.name }}
-          org.opencontainers.image.description=${{ github.event.repository.description }}
-          org.opencontainers.image.url=${{ github.event.repository.html_url }}
-          org.opencontainers.image.source=${{ github.event.repository.clone_url }}
-          org.opencontainers.image.version=${{ steps.prep.outputs.version }}
-          org.opencontainers.image.created=${{ steps.prep.outputs.created }}
-          org.opencontainers.image.revision=${{ github.sha }}
-          org.opencontainers.image.licenses=${{ github.event.repository.license.spdx_id }}
-        cache-from: type=local,src=/tmp/.buildx-cache
-        cache-to: type=local,dest=/tmp/.buildx-cache
-    - name: Slack Notification
-      if: ${{ steps.prep.outputs.slack-notification-version && steps.prep_base_version.outputs.disable-slack-notification == 'false' && job.status == 'success' }}
-      uses: rtCamp/action-slack-notify@28e8b353eabda5998a2e1203aed33c5999944779
-      env:
-        SLACK_COLOR: ${{ job.status }} # It can turn the job status into a color. Success will be green.
-        SLACK_MESSAGE: 'We will be deploying this new image soon. Get in touch with the hathor-core team if you want to talk about this deployment.'
-        SLACK_TITLE: 'Hathor Core - new ${{ steps.prep.outputs.slack-notification-version }} Docker image pushed :rocket:'
-        SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
-        SLACK_FOOTER: ''
-        MSG_MINIMAL: actions url
+          python extras/github/docker.py
+      - name: Check version
+        if: steps.prep.outputs.check-version
+        run: |
+          make check-version VERSION='${{ steps.prep.outputs.check-version }}'
+      - name: Set up QEMU  # arm64 is not available natively
+        uses: docker/setup-qemu-action@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+        with:
+          version: latest
+          install: true
+          driver-opts: network=host
+      - name: Login to DockerHub
+        uses: docker/login-action@v2
+        if: steps.prep.outputs.login-dockerhub == 'true'
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        if: steps.prep.outputs.login-ghcr == 'true'
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Cache Docker layers
+        uses: actions/cache@v3
+        if: steps.prep_base_version.outputs.is-nightly == 'false'
+        with:
+          path: /tmp/.buildx-cache
+          # this key is setup such that every branch has its cache and new branches can reuse master's cache, but not the other way around
+          key: ${{ runner.os }}-buildx-${{ matrix.python-impl }}${{ matrix.python-version }}-${{ github.head_ref || github.ref }}-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-${{ matrix.python-impl }}${{ matrix.python-version }}-refs/heads/master-
+      - name: Build and export to Docker
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: ${{ steps.prep.outputs.dockerfile }}
+          build-args: PYTHON=${{ matrix.python-version }}
+          pull: true
+          load: true
+          tags: ${{ env.TEST_TAG }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache
+      - name: Test image
+        run: docker run --rm ${{ env.TEST_TAG }} quick_test --data / --testnet
+      - name: Build and push
+        uses: docker/build-push-action@v3
+        continue-on-error: ${{ matrix.python-impl == 'pypy' }}  # PyPy is not first-class and has been causing some build failures
+        if: ${{ !env.ACT }}  # Skip this step when testing locally with https://github.com/nektos/act
+        with:
+          context: .
+          file: ${{ steps.prep.outputs.dockerfile }}
+          build-args: PYTHON=${{ matrix.python-version }}
+          platforms: linux/amd64,linux/arm64
+          pull: true
+          push: ${{ github.event_name != 'pull_request' && steps.prep.outputs.push }}
+          tags: ${{ steps.prep.outputs.tags }}
+          # see: https://github.com/opencontainers/image-spec/blob/master/annotations.md
+          labels: |
+            org.opencontainers.image.title=${{ github.event.repository.name }}
+            org.opencontainers.image.description=${{ github.event.repository.description }}
+            org.opencontainers.image.url=${{ github.event.repository.html_url }}
+            org.opencontainers.image.source=${{ github.event.repository.clone_url }}
+            org.opencontainers.image.version=${{ steps.prep.outputs.version }}
+            org.opencontainers.image.created=${{ steps.prep.outputs.created }}
+            org.opencontainers.image.revision=${{ github.sha }}
+            org.opencontainers.image.licenses=${{ github.event.repository.license.spdx_id }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache
+      - name: Slack Notification
+        if: ${{ steps.prep.outputs.slack-notification-version && steps.prep_base_version.outputs.disable-slack-notification == 'false' && job.status == 'success' }}
+        uses: rtCamp/action-slack-notify@28e8b353eabda5998a2e1203aed33c5999944779
+        env:
+          SLACK_COLOR: ${{ job.status }} # It can turn the job status into a color. Success will be green.
+          SLACK_MESSAGE: 'We will be deploying this new image soon. Get in touch with the hathor-core team if you want to talk about this deployment.'
+          SLACK_TITLE: 'Hathor Core - new ${{ steps.prep.outputs.slack-notification-version }} Docker image pushed :rocket:'
+          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
+          SLACK_FOOTER: ''
+          MSG_MINIMAL: actions url
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 99c9b2bb6..304734f4b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,11 +1,12 @@
+# yamllint disable rule:line-length
 name: tests
-on:
+on: # yamllint disable-line rule:truthy
   push:
     branches:
-    - master
-    - dev
+      - master
+      - dev
     tags:
-    - v*
+      - v*
   pull_request:
 jobs:
   matrix:
@@ -13,45 +14,45 @@ jobs:
     outputs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
-    - id: set-matrix
-      shell: python
-      run: |
-        import os
-        import json
-        full_matrix = {
-          'python': ['3.8', '3.9', '3.10', '3.11'],
-          # available OS's: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idruns-on
-          'os': ['ubuntu-22.04', 'macos-12', 'windows-2022'],
-          'include': [
-            # XXX: tests fail on these, not sure why, when running them individually each on passes, but not on `make tests`
-            # {'os': 'ubuntu-22.04', 'python': 'pypy-3.8'},
-            # {'os': 'ubuntu-22.04', 'python': 'pypy-3.9'},
-          ],
-        }
-        # this is the fastest one:
-        reduced_matrix = {
-          'python': ['3.9'],
-          'os': ['ubuntu-22.04'],
-        }
-        github_repository = os.environ['GITHUB_REPOSITORY']
-        if github_repository.lower() == 'hathornetwork/hathor-core':
-            matrix = full_matrix
-        else:
-            matrix = reduced_matrix
-        print('::set-output name=matrix::' + json.dumps(matrix))
+      - id: set-matrix
+        shell: python
+        run: |
+          import os
+          import json
+          full_matrix = {
+            'python': ['3.8', '3.9', '3.10', '3.11'],
+            # available OS's: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idruns-on
+            'os': ['ubuntu-22.04', 'macos-12', 'windows-2022'],
+            'include': [
+              # XXX: tests fail on these, not sure why, when running them individually each on passes, but not on `make tests`
+              # {'os': 'ubuntu-22.04', 'python': 'pypy-3.8'},
+              # {'os': 'ubuntu-22.04', 'python': 'pypy-3.9'},
+            ],
+          }
+          # this is the fastest one:
+          reduced_matrix = {
+            'python': ['3.9'],
+            'os': ['ubuntu-22.04'],
+          }
+          github_repository = os.environ['GITHUB_REPOSITORY']
+          if github_repository.lower() == 'hathornetwork/hathor-core':
+              matrix = full_matrix
+          else:
+              matrix = reduced_matrix
+          print('::set-output name=matrix::' + json.dumps(matrix))
   check-matrix:
     runs-on: ubuntu-latest
     needs: matrix
     steps:
-    - name: Install json2yaml
-      run: |
-        sudo npm install -g json2yaml
-    - name: Check matrix definition
-      run: |
-        matrix='${{ needs.matrix.outputs.matrix }}'
-        echo $matrix
-        echo $matrix | jq .
-        echo $matrix | json2yaml
+      - name: Install json2yaml
+        run: |
+          sudo npm install -g json2yaml
+      - name: Check matrix definition
+        run: |
+          matrix='${{ needs.matrix.outputs.matrix }}'
+          echo $matrix
+          echo $matrix | jq .
+          echo $matrix | json2yaml
   test:
     name: python-${{ matrix.python }} (${{ matrix.os }})
     runs-on: ${{ matrix.os }}
@@ -61,41 +62,41 @@ jobs:
       fail-fast: false
       matrix: ${{fromJson(needs.matrix.outputs.matrix)}}
     steps:
-    - name: Checkout
-      uses: actions/checkout@v3
-    - name: Install Poetry
-      run: pipx install poetry
-    - name: Set up Python ${{ matrix.python }}
-      uses: actions/setup-python@v4
-      with:
-        python-version: ${{ matrix.python }}
-        cache: 'poetry'
-    - name: Install Ubuntu dependencies
-      if: startsWith(matrix.os, 'ubuntu')
-      run: |
-        sudo apt-get -qy update
-        sudo apt-get -qy install graphviz librocksdb-dev libsnappy-dev liblz4-dev
-    - name: Install macOS dependencies
-      if: startsWith(matrix.os, 'macos')
-      run: |
-        brew cleanup -q
-        # brew update -q
-        brew install -q graphviz rocksdb pkg-config
-    - name: Install Poetry dependencies
-      run: poetry install -n --no-root
-    - name: Cache mypy
-      uses: actions/cache@v3
-      with:
-        path: .mypy_cache
-        # this key is setup such that every branch has its cache and new branches can reuse dev's cache, but not the other way around
-        key: ${{ runner.os }}-py${{ matrix.python }}-mypy-${{ github.head_ref || github.ref }}
-        restore-keys: |
-          ${{ runner.os }}-py${{ matrix.python }}-mypy-refs/heads/dev-
-          ${{ runner.os }}-py${{ matrix.python }}-mypy-
-    - name: Run linters
-      run: poetry run make check
-    - name: Run tests
-      run: poetry run make tests
-    - name: Upload coverage
-      uses: codecov/codecov-action@v3
-      if: matrix.python == 3.9 && startsWith(matrix.os, 'ubuntu')
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Install Poetry
+        run: pipx install poetry
+      - name: Set up Python ${{ matrix.python }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python }}
+          cache: 'poetry'
+      - name: Install Ubuntu dependencies
+        if: startsWith(matrix.os, 'ubuntu')
+        run: |
+          sudo apt-get -qy update
+          sudo apt-get -qy install graphviz librocksdb-dev libsnappy-dev liblz4-dev
+      - name: Install macOS dependencies
+        if: startsWith(matrix.os, 'macos')
+        run: |
+          brew cleanup -q
+          # brew update -q
+          brew install -q graphviz rocksdb pkg-config
+      - name: Install Poetry dependencies
+        run: poetry install -n --no-root
+      - name: Cache mypy
+        uses: actions/cache@v3
+        with:
+          path: .mypy_cache
+          # this key is setup such that every branch has its cache and new branches can reuse dev's cache, but not the other way around
+          key: ${{ runner.os }}-py${{ matrix.python }}-mypy-${{ github.head_ref || github.ref }}
+          restore-keys: |
+            ${{ runner.os }}-py${{ matrix.python }}-mypy-refs/heads/dev-
+            ${{ runner.os }}-py${{ matrix.python }}-mypy-
+      - name: Run linters
+        run: poetry run make check
+      - name: Run tests
+        run: poetry run make tests
+      - name: Upload coverage
+        uses: codecov/codecov-action@v3
+        if: matrix.python == 3.9 && startsWith(matrix.os, 'ubuntu')
diff --git a/.yamllint.yml b/.yamllint.yml
new file mode 100644
index 000000000..077d1e328
--- /dev/null
+++ b/.yamllint.yml
@@ -0,0 +1,10 @@
+extends: default
+
+rules:
+  document-start: disable
+  line-length:
+    max: 100
+  new-lines:
+    type: platform
+  comments:
+    min-spaces-from-content: 1
diff --git a/Makefile b/Makefile
index d22dbcccc..56a229b4d 100644
--- a/Makefile
+++ b/Makefile
@@ -74,15 +74,19 @@ flake8:
 isort-check:
 	isort --ac --check-only $(py_sources)
 
+.PHONY: yamllint
+yamllint:
+	yamllint .
+
 .PHONY: check-version
 check-version:
 	bash ./extras/check_version.sh $(VERSION)
 
 .PHONY: check
-check: check-version flake8 isort-check mypy
+check: check-version yamllint flake8 isort-check mypy
 
 .PHONY: dcheck
-dcheck: check-version flake8 isort-check dmypy
+dcheck: check-version yamllint flake8 isort-check dmypy
 
 # formatting:
 
diff --git a/changelogs/unreleased/fix-output-negative-value.yml b/changelogs/unreleased/fix-output-negative-value.yml
index b33f66135..3c8784e15 100644
--- a/changelogs/unreleased/fix-output-negative-value.yml
+++ b/changelogs/unreleased/fix-output-negative-value.yml
@@ -2,4 +2,4 @@
 title: Prevent outputs from accepting negative values
 merge_request: 303
 author:
-type: fix
\ No newline at end of file
+type: fix
diff --git a/changelogs/unreleased/fix-ws-notification-broadcast.yml b/changelogs/unreleased/fix-ws-notification-broadcast.yml
index 36a27451a..1361385b2 100644
--- a/changelogs/unreleased/fix-ws-notification-broadcast.yml
+++ b/changelogs/unreleased/fix-ws-notification-broadcast.yml
@@ -2,4 +2,4 @@
 title: Fixing ws message being sent to wrong user
 merge_request: 302
 author:
-type: fix
\ No newline at end of file
+type: fix
diff --git a/poetry.lock b/poetry.lock
index 72e4cd6ee..46758372e 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 1.4.0 and should not be changed by hand.
+# This file is automatically @generated by Poetry and should not be changed by hand.
 
 [[package]]
 name = "aiohttp"
@@ -1102,6 +1102,18 @@ files = [
 qa = ["flake8 (==3.8.3)", "mypy (==0.782)"]
 testing = ["docopt", "pytest (<6.0.0)"]
 
+[[package]]
+name = "pathspec"
+version = "0.11.1"
+description = "Utility library for gitignore style pattern matching of file paths."
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "pathspec-0.11.1-py3-none-any.whl", hash = "sha256:d8af70af76652554bd134c22b3e8a1cc46ed7d91edcdd721ef1a0c51a84a5293"},
+    {file = "pathspec-0.11.1.tar.gz", hash = "sha256:2798de800fa92780e33acca925945e9a19a133b715067cf165b8866c15a31687"},
+]
+
 [[package]]
 name = "pexpect"
 version = "4.8.0"
@@ -1451,6 +1463,56 @@ files = [
     {file = "pywin32-305-cp39-cp39-win_amd64.whl", hash = "sha256:50768c6b7c3f0b38b7fb14dd4104da93ebced5f1a50dc0e834594bff6fbe1271"},
 ]
 
+[[package]]
+name = "pyyaml"
+version = "6.0"
+description = "YAML parser and emitter for Python"
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+files = [
+    {file = "PyYAML-6.0-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:d4db7c7aef085872ef65a8fd7d6d09a14ae91f691dec3e87ee5ee0539d516f53"},
+    {file = "PyYAML-6.0-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:9df7ed3b3d2e0ecfe09e14741b857df43adb5a3ddadc919a2d94fbdf78fea53c"},
+    {file = "PyYAML-6.0-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:77f396e6ef4c73fdc33a9157446466f1cff553d979bd00ecb64385760c6babdc"},
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+    {file = "PyYAML-6.0-cp39-cp39-win_amd64.whl", hash = "sha256:b3d267842bf12586ba6c734f89d1f5b871df0273157918b0ccefa29deb05c21c"},
+    {file = "PyYAML-6.0.tar.gz", hash = "sha256:68fb519c14306fec9720a2a5b45bc9f0c8d1b9c72adf45c37baedfcd949c35a2"},
+]
+
 [[package]]
 name = "requests"
 version = "2.28.1"
@@ -1940,6 +2002,25 @@ files = [
     {file = "wcwidth-0.2.5.tar.gz", hash = "sha256:c4d647b99872929fdb7bdcaa4fbe7f01413ed3d98077df798530e5b04f116c83"},
 ]
 
+[[package]]
+name = "yamllint"
+version = "1.31.0"
+description = "A linter for YAML files."
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "yamllint-1.31.0-py3-none-any.whl", hash = "sha256:15f4bdb645e6a4a0a22fe5415bc38b4a934c51419b30104896d2f3f95e329185"},
+    {file = "yamllint-1.31.0.tar.gz", hash = "sha256:2d83f1d12f733e162a87e06b176149d7bb9c5bae4a9e5fce1c771d7f703f7a65"},
+]
+
+[package.dependencies]
+pathspec = ">=0.5.3"
+pyyaml = "*"
+
+[package.extras]
+dev = ["doc8", "flake8", "flake8-import-order", "rstcheck[sphinx]", "sphinx"]
+
 [[package]]
 name = "yarl"
 version = "1.8.2"
@@ -2128,4 +2209,4 @@ sentry = ["sentry-sdk", "structlog-sentry"]
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.8.1,<4"
-content-hash = "d1b70ed0381b8680d8c4ebf91fca2519fdc51ecb71b32833efac6747cc7ce183"
+content-hash = "17520e2c0c85413966ac2feeedde03289e347ef625725a8677550f4e210e1c7e"
diff --git a/pyproject.toml b/pyproject.toml
index ac9e82044..e130cd9d3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,6 +45,7 @@ pytest = "~7.2.0"
 pytest-cov = "~4.0.0"
 flaky = "~3.7.0"
 pytest-xdist = "~3.2.0"
+yamllint = "~1.31.0"
 # stubs:
 types-requests = "=2.28.11.4"
 types-pyopenssl = "=22.1.0.2"