diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..d04ce5d
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,29 @@
+name: Release
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version to release (e.g., v1.2.3)'
+        required: true
+        type: string
+
+jobs:
+  release:
+    name: Create Release
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup mise
+        uses: jdx/mise-action@v2
+
+      - name: Create release
+        run: mise run release -- ${{ inputs.version }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 274d6f5..ec0190b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,7 +8,7 @@ on:
   workflow_dispatch:
 
 env:
-  VALID_CDEVENT: '{"context":{"version":"0.3.0","id":"test-${{ github.run_id }}","source":"github-action-test","type":"dev.cdevents.build.started.0.1.1","timestamp":"2024-01-01T00:00:00Z"},"subject":{"id":"test-subject","source":"https://github.com/test/repo"}}'
+  VALID_CDEVENT: '{"context":{"version":"0.4.1","source":"github-action-test","type":"dev.cdevents.taskrun.started.0.2.0"},"subject":{"id":"test-task-${{ github.run_id }}","source":"github-action-test","type":"taskRun","content":{"taskName":"ci-test","url":"${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"}}}'
   INVALID_CDEVENT: '{"invalid": "missing required fields"}'
 
 jobs:
diff --git a/.mise.toml b/.mise.toml
index 126ca18..067694f 100644
--- a/.mise.toml
+++ b/.mise.toml
@@ -1,6 +1,7 @@
 [tools]
 dprint = "latest"
 bun = "latest"
+github-cli = "latest"
 
 [tasks.format]
 description = "Format code using dprint"
@@ -18,4 +19,87 @@ run = [
 
 [tasks.ci]
 description = "Run all CI checks locally"
-alias = "check"
\ No newline at end of file
+alias = "check"
+
+[tasks.release]
+description = "Create a new release with version tag (usage: mise run release -- v1.2.3)"
+depends = ["check"]
+run = '''
+  if [ -z "$1" ]; then 
+    echo 'Error: Please provide version (e.g., mise run release -- v1.2.3)'
+    exit 1
+  fi
+  
+  VERSION="$1"
+  MAJOR_VERSION=$(echo $VERSION | cut -d. -f1)
+  
+  echo "=== Creating GitHub Action release ==="
+  echo "Version: $VERSION (major: $MAJOR_VERSION)"
+  
+  # Ensure we're on main branch and up to date
+  git checkout main
+  git pull origin main
+  
+  # Create and push version tag
+  echo "Creating tag: $VERSION"
+  git tag -a "$VERSION" -m "Release $VERSION"
+  git push origin "$VERSION"
+  
+  # Create GitHub release using gh CLI
+  echo "Creating GitHub release"
+  gh release create "$VERSION" \
+    --title "Release $VERSION" \
+    --notes "## Changes
+
+See [CHANGELOG.md](https://github.com/cdviz-dev/send-cdevents/blob/main/CHANGELOG.md) for details.
+
+## Usage
+
+\`\`\`yaml
+- name: Send CDEvent
+  uses: cdviz-dev/send-cdevents@$VERSION
+  with:
+    data: |
+      {
+        \"context\": {
+          \"version\": \"0.4.1\",
+          \"source\": \"github-actions\",
+          \"type\": \"dev.cdevents.taskrun.started.0.2.0\"
+        },
+        \"subject\": {
+          \"id\": \"\${{ github.run_id }}\",
+          \"type\": \"taskRun\",
+          \"content\": {
+            \"taskName\": \"ci-build\"
+          }
+        }
+      }
+    url: \"https://your-webhook-endpoint.com/cdevents\"
+\`\`\`"
+  
+  # Update major version tag (e.g., v1)  
+  echo "Updating major version tag: $MAJOR_VERSION"
+  git tag -f -a "$MAJOR_VERSION" -m "Release $MAJOR_VERSION (latest: $VERSION)"
+  git push origin "$MAJOR_VERSION" --force
+  
+  echo "=== Release completed! ==="
+  echo "✅ Created version tag: $VERSION"
+  echo "✅ Created GitHub release: $VERSION"
+  echo "✅ Updated major tag: $MAJOR_VERSION" 
+  echo "📦 GitHub Marketplace will auto-update from the major version tag"
+'''
+
+[tasks.release-check]
+description = "Check current release status and tags"
+depends = ["check"]
+run = '''
+  echo "=== Current Release Status ==="
+  echo "Latest tags:"
+  git tag --sort=-version:refname | head -5
+  
+  echo "Current branch:"
+  git branch --show-current
+  
+  echo "Uncommitted changes:"
+  git status --porcelain || echo "Working tree clean"
+'''
\ No newline at end of file
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..9306c81
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,184 @@
+# Contributing to send-cdevents
+
+Thank you for your interest in contributing to the send-cdevents GitHub Action!
+
+## Development Setup
+
+This project uses [mise](https://mise.jdx.dev/) for tool management and task automation.
+
+### Prerequisites
+
+1. Install [mise](https://mise.jdx.dev/getting-started.html)
+2. Clone the repository
+3. Install tools and dependencies:
+
+```bash
+mise install
+```
+
+This will automatically install:
+- `dprint` - for code formatting
+- `bun` - for JavaScript tooling
+- `github-cli` - for GitHub operations
+
+## Development Workflow
+
+### Code Quality Checks
+
+Before submitting any changes, ensure your code passes all quality checks:
+
+```bash
+# Format code
+mise run format
+
+# Run all checks (formatting, validation, linting)
+mise run check
+```
+
+The `check` task runs:
+- `dprint check` - validates code formatting
+- `bunx @action-validator/core action.yml` - validates GitHub Action schema
+
+### Testing Changes
+
+Test your changes using the test workflow:
+
+```bash
+# Push changes to trigger test workflow
+git push origin feature-branch
+
+# Or run tests manually via GitHub UI:
+# Actions → Test Send CDEvents Action → Run workflow
+```
+
+The test workflow validates:
+- Basic CDEvent sending
+- HTTP endpoint integration
+- Custom headers
+- Configuration files
+- Environment variables
+- File input
+- Error handling
+- Config cleanup
+
+## Making Changes
+
+### Code Style
+
+- Use consistent formatting (enforced by dprint)
+- Follow existing patterns in the codebase
+- Use proper CDEvents format (see conformance examples)
+- Use multiline YAML strings (`|`) for JSON data in examples
+
+### Documentation
+
+- Update README.md if you change functionality
+- Use proper CDEvent examples from the conformance spec
+- Include GitHub-flavored markdown callouts where helpful
+- Update this CONTRIBUTING.md if you change the development process
+
+### Commit Messages
+
+Use conventional commit format:
+```
+type: description
+
+Examples:
+feat: add support for custom timeout configuration
+fix: resolve config file permission issues
+docs: update README with new environment variables
+ci: improve test workflow performance
+```
+
+## Release Process
+
+### Preferred: GitHub Workflow (Recommended)
+
+1. Ensure all changes are merged to `main`
+2. Go to **Actions** → **Release** → **Run workflow**
+3. Enter the version (e.g., `v1.2.3`) following [semantic versioning](https://semver.org/)
+4. Click **Run workflow**
+
+The workflow will:
+- Run all quality checks
+- Create and push version tag
+- Create GitHub release with usage examples
+- Update major version tag (e.g., `v1`) for GitHub Marketplace
+
+### Alternative: Local Release
+
+If you have the necessary permissions and tools set up locally:
+
+```bash
+# Check release status first
+mise run release-check
+
+# Create release
+mise run release -- v1.2.3
+```
+
+> **⚠️ Note**: Local releases require:
+> - Write access to the repository
+> - GitHub CLI authenticated (`gh auth login`)
+> - Clean working directory on `main` branch
+
+### Version Guidelines
+
+Follow [semantic versioning](https://semver.org/):
+
+- **Patch** (`v1.0.1`): Bug fixes, documentation updates
+- **Minor** (`v1.1.0`): New features, backward-compatible changes  
+- **Major** (`v2.0.0`): Breaking changes, incompatible API changes
+
+### Release Checklist
+
+- [ ] All tests pass
+- [ ] Documentation is updated
+- [ ] CHANGELOG.md is updated (if exists)
+- [ ] Version follows semantic versioning
+- [ ] Release notes are meaningful
+
+## Project Structure
+
+```
+.
+├── action.yml              # GitHub Action definition
+├── README.md              # User documentation
+├── CONTRIBUTING.md        # This file
+├── .mise.toml            # Tool management and tasks
+├── dprint.json           # Code formatting configuration
+├── .github/
+│   ├── workflows/
+│   │   ├── ci.yml        # Code quality checks
+│   │   ├── test.yml      # Action functionality tests
+│   │   └── release.yml   # Release automation
+│   ├── dependabot.yml   # Dependency updates
+│   └── markdownlint.json # Markdown linting config
+└── test-data/           # Sample CDEvent files
+```
+
+## Available Tasks
+
+```bash
+# Show all available tasks
+mise tasks
+
+# Key tasks:
+mise run format          # Format all code
+mise run check          # Run all quality checks  
+mise run release-check  # Check current release status
+mise run release -- v1.2.3  # Create new release
+```
+
+## Getting Help
+
+- Check existing [Issues](https://github.com/cdviz-dev/send-cdevents/issues)
+- Review the [cdviz-collector documentation](https://github.com/cdviz-dev/cdviz-collector)
+- Look at [CDEvents specification](https://cdevents.dev/)
+- Open a new issue for bugs or feature requests
+
+## Code of Conduct
+
+This project follows the [Contributor Covenant Code of Conduct](https://www.contributor-covenant.org/version/2/1/code_of_conduct/). By participating, you agree to uphold this code.
+
+Thank you for contributing! 🎉
\ No newline at end of file
diff --git a/README.md b/README.md
index 62a888a..a197da7 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,21 @@ jobs:
       - name: Send CDEvent
         uses: cdviz-dev/send-cdevents@v1
         with:
-          data: '{"type": "dev.cdevents.build.started.0.1.1", "source": "github-action"}'
+          data: |
+            {
+              "context": {
+                "version": "0.4.1",
+                "source": "github-actions",
+                "type": "dev.cdevents.taskrun.started.0.2.0"
+              },
+              "subject": {
+                "id": "${{ github.run_id }}",
+                "type": "taskRun",
+                "content": {
+                  "taskName": "ci-build"
+                }
+              }
+            }
           url: "https://your-webhook-endpoint.com/cdevents"
 ```
 
@@ -38,7 +52,23 @@ jobs:
       - name: Send CDEvent
         uses: cdviz-dev/send-cdevents@v1
         with:
-          data: '{"type": "dev.cdevents.build.started.0.1.1", "source": "github-action"}'
+          data: |
+            {
+              "context": {
+                "version": "0.4.1",
+                "source": "github-actions",
+                "type": "dev.cdevents.service.deployed.0.2.0"
+              },
+              "subject": {
+                "id": "${{ github.repository }}",
+                "type": "service",
+                "content": {
+                  "environment": {
+                    "id": "production"
+                  }
+                }
+              }
+            }
           url: "https://your-webhook-endpoint.com/cdevents"
           headers: |
             Authorization: Bearer ${{ secrets.API_TOKEN }}
@@ -60,7 +90,24 @@ jobs:
       - name: Send CDEvent with HMAC signature
         uses: cdviz-dev/send-cdevents@v1
         with:
-          data: '{"type": "dev.cdevents.build.started.0.1.1", "source": "github-action"}'
+          data: |
+            {
+              "context": {
+                "version": "0.4.1",
+                "source": "github-actions",
+                "type": "dev.cdevents.testcaserun.started.0.2.0"
+              },
+              "subject": {
+                "id": "${{ github.run_id }}-test",
+                "type": "testCaseRun",
+                "content": {
+                  "testCase": {
+                    "name": "Integration Tests",
+                    "type": "integration"
+                  }
+                }
+              }
+            }
           url: "https://your-webhook-endpoint.com/cdevents"
           config: |
             [sinks.http.headers.x-signature-256]
@@ -150,9 +197,45 @@ Examples:
 
 ```yaml
 with:
-  data: '{"type": "dev.cdevents.build.started.0.1.1", "source": "github-action"}'
+  data: |
+    {
+      "context": {
+        "version": "0.4.1",
+        "source": "github-actions",
+        "type": "dev.cdevents.taskrun.started.0.2.0"
+      },
+      "subject": {
+        "id": "${{ github.run_id }}",
+        "type": "taskRun",
+        "content": {
+          "taskName": "ci-build"
+        }
+      }
+    }
 ```
 
+> [!TIP]
+> The `context.id` and `context.timestamp` fields can be automatically generated by cdviz-collector if missing from your CDEvent. You can provide minimal CDEvents and let the collector handle the required metadata:
+>
+> ```yaml
+> with:
+>   data: |
+>     {
+>       "context": {
+>         "version": "0.4.1",
+>         "source": "github-actions",
+>         "type": "dev.cdevents.taskrun.started.0.2.0"
+>       },
+>       "subject": {
+>         "id": "${{ github.run_id }}",
+>         "type": "taskRun",
+>         "content": {
+>           "taskName": "ci-build"
+>         }
+>       }
+>     }
+> ```
+
 ### From File
 
 ```yaml