diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ddb5e79b982..5de2e3bd0c8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,96 +13,96 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-    - name: Install Go
-      uses: actions/setup-go@v2.1.4
-      with:
-        go-version: ${{ env.DEFAULT_GO_VERSION }}
-    - name: Checkout Repo
-      uses: actions/checkout@v2
-    - name: Setup Environment
-      run: |
-        echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
-        echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
-    - name: Module cache
-      uses: actions/cache@v2.1.6
-      env:
-        cache-name: go-mod-cache
-      with:
-        path: ~/go/pkg/mod
-        key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('**/go.sum') }}
-    - name: Tools cache
-      uses: actions/cache@v2.1.6
-      env:
-        cache-name: go-tools-cache
-      with:
-        path: ~/.tools
-        key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('./internal/tools/**') }}
-    - name: Run linters
-      run: make dependabot-check license-check lint
-    - name: Build
-      run: make examples build
-    - name: Check clean repository
-      run: make check-clean-work-tree
+      - name: Install Go
+        uses: actions/setup-go@v2.1.4
+        with:
+          go-version: ${{ env.DEFAULT_GO_VERSION }}
+      - name: Checkout Repo
+        uses: actions/checkout@v2
+      - name: Setup Environment
+        run: |
+          echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
+          echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
+      - name: Module cache
+        uses: actions/cache@v2.1.6
+        env:
+          cache-name: go-mod-cache
+        with:
+          path: ~/go/pkg/mod
+          key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('**/go.sum') }}
+      - name: Tools cache
+        uses: actions/cache@v2.1.6
+        env:
+          cache-name: go-tools-cache
+        with:
+          path: ~/.tools
+          key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('./internal/tools/**') }}
+      - name: Run linters
+        run: make dependabot-check license-check lint vanity-import-check
+      - name: Build
+        run: make examples build
+      - name: Check clean repository
+        run: make check-clean-work-tree
 
   test-race:
     runs-on: ubuntu-latest
     steps:
-    - name: Install Go
-      uses: actions/setup-go@v2.1.4
-      with:
-        go-version: ${{ env.DEFAULT_GO_VERSION }}
-    - name: Checkout Repo
-      uses: actions/checkout@v2
-    - name: Setup Environment
-      run: |
-        echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
-        echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
-    - name: Module cache
-      uses: actions/cache@v2.1.6
-      env:
-        cache-name: go-mod-cache
-      with:
-        path: ~/go/pkg/mod
-        key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('**/go.sum') }}
-    - name: Run tests with race detector
-      run: make test-race
+      - name: Install Go
+        uses: actions/setup-go@v2.1.4
+        with:
+          go-version: ${{ env.DEFAULT_GO_VERSION }}
+      - name: Checkout Repo
+        uses: actions/checkout@v2
+      - name: Setup Environment
+        run: |
+          echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
+          echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
+      - name: Module cache
+        uses: actions/cache@v2.1.6
+        env:
+          cache-name: go-mod-cache
+        with:
+          path: ~/go/pkg/mod
+          key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('**/go.sum') }}
+      - name: Run tests with race detector
+        run: make test-race
 
   test-coverage:
     runs-on: ubuntu-latest
     steps:
-    - name: Install Go
-      uses: actions/setup-go@v2.1.4
-      with:
-        go-version: ${{ env.DEFAULT_GO_VERSION }}
-    - name: Checkout Repo
-      uses: actions/checkout@v2
-    - name: Setup Environment
-      run: |
-        echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
-        echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
-    - name: Module cache
-      uses: actions/cache@v2.1.6
-      env:
-        cache-name: go-mod-cache
-      with:
-        path: ~/go/pkg/mod
-        key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('**/go.sum') }}
-    - name: Run coverage tests
-      run: |
-        make test-coverage
-        mkdir $TEST_RESULTS
-        cp coverage.out $TEST_RESULTS
-        cp coverage.txt $TEST_RESULTS
-        cp coverage.html $TEST_RESULTS
-    - name: Upload coverage report
-      uses: codecov/codecov-action@v2.0.3
-      with:
-        file: ./coverage.txt
-        fail_ci_if_error: true
-        verbose: true
-    - name: Store coverage test output
-      uses: actions/upload-artifact@v2
-      with:
+      - name: Install Go
+        uses: actions/setup-go@v2.1.4
+        with:
+          go-version: ${{ env.DEFAULT_GO_VERSION }}
+      - name: Checkout Repo
+        uses: actions/checkout@v2
+      - name: Setup Environment
+        run: |
+          echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
+          echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
+      - name: Module cache
+        uses: actions/cache@v2.1.6
+        env:
+          cache-name: go-mod-cache
+        with:
+          path: ~/go/pkg/mod
+          key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('**/go.sum') }}
+      - name: Run coverage tests
+        run: |
+          make test-coverage
+          mkdir $TEST_RESULTS
+          cp coverage.out $TEST_RESULTS
+          cp coverage.txt $TEST_RESULTS
+          cp coverage.html $TEST_RESULTS
+      - name: Upload coverage report
+        uses: codecov/codecov-action@v2.0.3
+        with:
+          file: ./coverage.txt
+          fail_ci_if_error: true
+          verbose: true
+      - name: Store coverage test output
+        uses: actions/upload-artifact@v2
+        with:
           name: opentelemetry-go-test-output
           path: ${{ env.TEST_RESULTS }}
 
@@ -117,30 +117,30 @@ jobs:
         # https://docs.github.com/en/actions/hosting-your-own-runners/using-self-hosted-runners-in-a-workflow
         arch: ["386", amd64]
         exclude:
-        # Not a supported Go OS/architecture.
-        - os: macos-latest
-          arch: "386"
+          # Not a supported Go OS/architecture.
+          - os: macos-latest
+            arch: "386"
     runs-on: ${{ matrix.os }}
     steps:
-    - name: Install Go
-      uses: actions/setup-go@v2.1.4
-      with:
-        go-version: ${{ matrix.go-version }}
-    - name: Checkout code
-      uses: actions/checkout@v2
-    - name: Setup Environment
-      run: |
-        echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
-        echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
-      shell: bash
-    - name: Module cache
-      uses: actions/cache@v2.1.6
-      env:
-        cache-name: go-mod-cache
-      with:
-        path: ~/go/pkg/mod
-        key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('**/go.sum') }}
-    - name: Run tests
-      env:
-        GOARCH: ${{ matrix.arch }}
-      run: make test-short
+      - name: Install Go
+        uses: actions/setup-go@v2.1.4
+        with:
+          go-version: ${{ matrix.go-version }}
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Setup Environment
+        run: |
+          echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
+          echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
+        shell: bash
+      - name: Module cache
+        uses: actions/cache@v2.1.6
+        env:
+          cache-name: go-mod-cache
+        with:
+          path: ~/go/pkg/mod
+          key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('**/go.sum') }}
+      - name: Run tests
+        env:
+          GOARCH: ${{ matrix.arch }}
+        run: make test-short
diff --git a/Makefile b/Makefile
index d5f52c638a0..6b68c844489 100644
--- a/Makefile
+++ b/Makefile
@@ -50,19 +50,21 @@ GOLANGCI_LINT = $(TOOLS)/golangci-lint
 $(TOOLS)/golangci-lint: PACKAGE=github.com/golangci/golangci-lint/cmd/golangci-lint
 
 MISSPELL = $(TOOLS)/misspell
-$(TOOLS)/misspell: PACKAGE= github.com/client9/misspell/cmd/misspell
+$(TOOLS)/misspell: PACKAGE=github.com/client9/misspell/cmd/misspell
 
 GOCOVMERGE = $(TOOLS)/gocovmerge
-$(TOOLS)/gocovmerge: PACKAGE= github.com/wadey/gocovmerge
+$(TOOLS)/gocovmerge: PACKAGE=github.com/wadey/gocovmerge
 
 STRINGER = $(TOOLS)/stringer
 $(TOOLS)/stringer: PACKAGE=golang.org/x/tools/cmd/stringer
 
+PORTO = $(TOOLS)/porto
+$(TOOLS)/porto: PACKAGE=github.com/jcchavezs/porto/cmd/porto
+
 $(TOOLS)/gojq: PACKAGE=github.com/itchyny/gojq/cmd/gojq
 
 .PHONY: tools
-tools: $(CROSSLINK) $(GOLANGCI_LINT) $(MISSPELL) $(GOCOVMERGE) $(STRINGER) $(TOOLS)/gojq $(SEMCONVGEN)
-
+tools: $(CROSSLINK) $(GOLANGCI_LINT) $(MISSPELL) $(GOCOVMERGE) $(STRINGER) $(PORTO) $(TOOLS)/gojq $(SEMCONVGEN)
 
 # Build
 
@@ -78,7 +80,8 @@ generate: $(STRINGER)
 	set -e; for dir in $(ALL_GO_MOD_DIRS); do \
 	  echo "$(GO) generate $${dir}/..."; \
 	  (cd "$${dir}" && \
-	    PATH="$(TOOLS):$${PATH}" $(GO) generate ./...); \
+	    PATH="$(TOOLS):$${PATH}" $(GO) generate ./... && \
+		$(PORTO) -w .); \
 	done
 
 build: generate
@@ -136,6 +139,10 @@ lint: misspell lint-modules | $(GOLANGCI_LINT)
 	    $(GOLANGCI_LINT) run); \
 	done
 
+.PHONY: vanity-import-check
+vanity-import-check: | $(PORTO)
+	$(PORTO) -l .
+
 .PHONY: misspell
 misspell: | $(MISSPELL)
 	$(MISSPELL) -w $(ALL_DOCS)
diff --git a/attribute/type_string.go b/attribute/type_string.go
index e584b24776b..642e269516b 100644
--- a/attribute/type_string.go
+++ b/attribute/type_string.go
@@ -1,6 +1,6 @@
 // Code generated by "stringer -type=Type"; DO NOT EDIT.
 
-package attribute
+package attribute // import "go.opentelemetry.io/otel/attribute"
 
 import "strconv"
 
diff --git a/baggage/baggage.go b/baggage/baggage.go
index 8de2bc9df12..3427c51b477 100644
--- a/baggage/baggage.go
+++ b/baggage/baggage.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package baggage
+package baggage // import "go.opentelemetry.io/otel/baggage"
 
 import (
 	"errors"
diff --git a/bridge/opencensus/aggregation.go b/bridge/opencensus/aggregation.go
index a93f36065e6..44015d96cd9 100644
--- a/bridge/opencensus/aggregation.go
+++ b/bridge/opencensus/aggregation.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package opencensus
+package opencensus // import "go.opentelemetry.io/otel/bridge/opencensus"
 
 import (
 	"errors"
diff --git a/bridge/opencensus/bridge.go b/bridge/opencensus/bridge.go
index b30dab57ae9..7e6f31202d6 100644
--- a/bridge/opencensus/bridge.go
+++ b/bridge/opencensus/bridge.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package opencensus
+package opencensus // import "go.opentelemetry.io/otel/bridge/opencensus"
 
 import (
 	octrace "go.opencensus.io/trace"
diff --git a/bridge/opencensus/exporter.go b/bridge/opencensus/exporter.go
index d96e793211c..50f1242f266 100644
--- a/bridge/opencensus/exporter.go
+++ b/bridge/opencensus/exporter.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package opencensus
+package opencensus // import "go.opentelemetry.io/otel/bridge/opencensus"
 
 import (
 	"context"
diff --git a/example/passthrough/handler/handler.go b/example/passthrough/handler/handler.go
index 4b8f7a53306..10664baec6f 100644
--- a/example/passthrough/handler/handler.go
+++ b/example/passthrough/handler/handler.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package handler
+package handler // import "go.opentelemetry.io/otel/example/passthrough/handler"
 
 import (
 	"context"
diff --git a/exporters/otlp/otlpmetric/exporter.go b/exporters/otlp/otlpmetric/exporter.go
index 241715f3041..25930273aaf 100644
--- a/exporters/otlp/otlpmetric/exporter.go
+++ b/exporters/otlp/otlpmetric/exporter.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package otlpmetric
+package otlpmetric // import "go.opentelemetry.io/otel/exporters/otlp/otlpmetric"
 
 import (
 	"context"
diff --git a/exporters/otlp/otlpmetric/options.go b/exporters/otlp/otlpmetric/options.go
index 500e7f22368..54ce1d0df79 100644
--- a/exporters/otlp/otlpmetric/options.go
+++ b/exporters/otlp/otlpmetric/options.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package otlpmetric
+package otlpmetric // import "go.opentelemetry.io/otel/exporters/otlp/otlpmetric"
 
 import metricsdk "go.opentelemetry.io/otel/sdk/export/metric"
 
diff --git a/exporters/otlp/otlpmetric/otlpmetricgrpc/options.go b/exporters/otlp/otlpmetric/otlpmetricgrpc/options.go
index 57b1a2ec08b..9a551217308 100644
--- a/exporters/otlp/otlpmetric/otlpmetricgrpc/options.go
+++ b/exporters/otlp/otlpmetric/otlpmetricgrpc/options.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package otlpmetricgrpc
+package otlpmetricgrpc // import "go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc"
 
 import (
 	"fmt"
diff --git a/exporters/otlp/otlpmetric/otlpmetrichttp/client.go b/exporters/otlp/otlpmetric/otlpmetrichttp/client.go
index ce933c5651e..b335e4ba2fc 100644
--- a/exporters/otlp/otlpmetric/otlpmetrichttp/client.go
+++ b/exporters/otlp/otlpmetric/otlpmetrichttp/client.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package otlpmetrichttp
+package otlpmetrichttp // import "go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp"
 
 import (
 	"bytes"
diff --git a/exporters/otlp/otlpmetric/otlpmetrichttp/options.go b/exporters/otlp/otlpmetric/otlpmetrichttp/options.go
index 645e9166760..ccb59415a3c 100644
--- a/exporters/otlp/otlpmetric/otlpmetrichttp/options.go
+++ b/exporters/otlp/otlpmetric/otlpmetrichttp/options.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package otlpmetrichttp
+package otlpmetrichttp // import "go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp"
 
 import (
 	"crypto/tls"
diff --git a/exporters/otlp/otlptrace/otlptracehttp/client.go b/exporters/otlp/otlptrace/otlptracehttp/client.go
index 4aa8782b38a..c3aa3c9ab39 100644
--- a/exporters/otlp/otlptrace/otlptracehttp/client.go
+++ b/exporters/otlp/otlptrace/otlptracehttp/client.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package otlptracehttp
+package otlptracehttp // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
 
 import (
 	"bytes"
diff --git a/exporters/otlp/otlptrace/otlptracehttp/options.go b/exporters/otlp/otlptrace/otlptracehttp/options.go
index 46cc6a5e41d..7cb45010e1a 100644
--- a/exporters/otlp/otlptrace/otlptracehttp/options.go
+++ b/exporters/otlp/otlptrace/otlptracehttp/options.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package otlptracehttp
+package otlptracehttp // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
 
 import (
 	"crypto/tls"
diff --git a/internal/tools/go.mod b/internal/tools/go.mod
index cd7f8f662e4..57bc409f55b 100644
--- a/internal/tools/go.mod
+++ b/internal/tools/go.mod
@@ -7,8 +7,10 @@ require (
 	github.com/gogo/protobuf v1.3.2
 	github.com/golangci/golangci-lint v1.42.1
 	github.com/itchyny/gojq v0.12.5
+	github.com/jcchavezs/porto v0.2.1
 	github.com/wadey/gocovmerge v0.0.0-20160331181800-b5bfa59ec0ad
 	go.opentelemetry.io/build-tools/semconvgen v0.0.0-20210730171444-520d53fe242d
+	golang.org/x/mod v0.5.1 // indirect
 	golang.org/x/tools v0.1.5
 )
 
diff --git a/internal/tools/go.sum b/internal/tools/go.sum
index 7a916472b28..4f8db79be26 100644
--- a/internal/tools/go.sum
+++ b/internal/tools/go.sum
@@ -378,6 +378,8 @@ github.com/itchyny/gojq v0.12.5 h1:6SJ1BQ1VAwJAlIvLSIZmqHP/RUEq3qfVWvsRxrqhsD0=
 github.com/itchyny/gojq v0.12.5/go.mod h1:3e1hZXv+Kwvdp6V9HXpVrvddiHVApi5EDZwS+zLFeiE=
 github.com/itchyny/timefmt-go v0.1.3 h1:7M3LGVDsqcd0VZH2U+x393obrzZisp7C0uEe921iRkU=
 github.com/itchyny/timefmt-go v0.1.3/go.mod h1:0osSSCQSASBJMsIZnhAaF1C2fCBTJZXrnj37mG8/c+A=
+github.com/jcchavezs/porto v0.2.1 h1:Ox0DkFvM3itXUVRQNV9DJnwdSzWe11NbyBqQhp4n37s=
+github.com/jcchavezs/porto v0.2.1/go.mod h1:fESH0gzDHiutHRdX2hv27ojnOVFco37hg1W6E9EZF4A=
 github.com/jgautheron/goconst v1.5.1 h1:HxVbL1MhydKs8R8n/HE5NPvzfaYmQJA3o879lE4+WcM=
 github.com/jgautheron/goconst v1.5.1/go.mod h1:aAosetZ5zaeC/2EfMeRswtxUFBpe2Hr7HzkgX4fanO4=
 github.com/jhump/protoreflect v1.6.1/go.mod h1:RZQ/lnuN+zqeRVpQigTwO6o0AJUkxbnSnpuG7toUTG4=
@@ -790,8 +792,9 @@ golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.4.2 h1:Gz96sIWK3OalVv/I/qNygP42zyoKp3xptRVCWRFEBvo=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.5.1 h1:OJxoQ/rynoF0dcCdI7cLPktw/hR2cueqYfjm43oqK38=
+golang.org/x/mod v0.5.1/go.mod h1:5OXOZSfqPIIbmVBIIKWRFfZjPR0E5r58TLhUjH0a2Ro=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
diff --git a/internal/tools/tools.go b/internal/tools/tools.go
index 7e34a6be860..05095dcf66f 100644
--- a/internal/tools/tools.go
+++ b/internal/tools/tools.go
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build tools
 // +build tools
 
 package tools
@@ -21,6 +22,7 @@ import (
 	_ "github.com/gogo/protobuf/protoc-gen-gogofast"
 	_ "github.com/golangci/golangci-lint/cmd/golangci-lint"
 	_ "github.com/itchyny/gojq"
+	_ "github.com/jcchavezs/porto/cmd/porto"
 	_ "github.com/wadey/gocovmerge"
 	_ "go.opentelemetry.io/build-tools/semconvgen"
 	_ "golang.org/x/tools/cmd/stringer"
diff --git a/metric/number/kind_string.go b/metric/number/kind_string.go
index 6288c7ea295..13b6a902962 100644
--- a/metric/number/kind_string.go
+++ b/metric/number/kind_string.go
@@ -1,6 +1,6 @@
 // Code generated by "stringer -type=Kind"; DO NOT EDIT.
 
-package number
+package number // import "go.opentelemetry.io/otel/metric/number"
 
 import "strconv"
 
diff --git a/metric/sdkapi/instrumentkind_string.go b/metric/sdkapi/instrumentkind_string.go
index 3a2e79d823e..bffa1584cc9 100644
--- a/metric/sdkapi/instrumentkind_string.go
+++ b/metric/sdkapi/instrumentkind_string.go
@@ -1,6 +1,6 @@
 // Code generated by "stringer -type=InstrumentKind"; DO NOT EDIT.
 
-package sdkapi
+package sdkapi // import "go.opentelemetry.io/otel/metric/sdkapi"
 
 import "strconv"
 
diff --git a/sdk/export/metric/exportkind_string.go b/sdk/export/metric/exportkind_string.go
index a92c1c1f2de..3a04abdd575 100644
--- a/sdk/export/metric/exportkind_string.go
+++ b/sdk/export/metric/exportkind_string.go
@@ -1,6 +1,6 @@
 // Code generated by "stringer -type=ExportKind"; DO NOT EDIT.
 
-package metric
+package metric // import "go.opentelemetry.io/otel/sdk/export/metric"
 
 import "strconv"
 
diff --git a/sdk/trace/event.go b/sdk/trace/event.go
index 4eb556c53be..1e3b426757d 100644
--- a/sdk/trace/event.go
+++ b/sdk/trace/event.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package trace
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
 
 import (
 	"time"
diff --git a/sdk/trace/snapshot.go b/sdk/trace/snapshot.go
index 68670bb0b54..53aac61f5fe 100644
--- a/sdk/trace/snapshot.go
+++ b/sdk/trace/snapshot.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package trace
+package trace // import "go.opentelemetry.io/otel/sdk/trace"
 
 import (
 	"time"
diff --git a/semconv/v1.4.0/exception.go b/semconv/v1.4.0/exception.go
index ee13cfdbdfe..311cbf218fe 100644
--- a/semconv/v1.4.0/exception.go
+++ b/semconv/v1.4.0/exception.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package semconv
+package semconv // import "go.opentelemetry.io/otel/semconv/v1.4.0"
 
 const (
 	// ExceptionEventName is the name of the Span event representing an exception.
diff --git a/semconv/v1.4.0/schema.go b/semconv/v1.4.0/schema.go
index 41079980eca..467a30b9ed7 100644
--- a/semconv/v1.4.0/schema.go
+++ b/semconv/v1.4.0/schema.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package semconv
+package semconv // import "go.opentelemetry.io/otel/semconv/v1.4.0"
 
 // SchemaURL is the schema URL that matches the version of the semantic conventions
 // that this package defines. Semconv packages starting from v1.4.0 must declare
diff --git a/trace/tracestate.go b/trace/tracestate.go
index f457466a2a8..9fad16fd277 100644
--- a/trace/tracestate.go
+++ b/trace/tracestate.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package trace
+package trace // import "go.opentelemetry.io/otel/trace"
 
 import (
 	"encoding/json"