diff --git a/.github/pr-agent-context-template.md b/.github/pr-agent-context-template.md
new file mode 100644
index 0000000..89a796c
--- /dev/null
+++ b/.github/pr-agent-context-template.md
@@ -0,0 +1,11 @@
+{{ prompt_preamble }}
+
+{{ opening_instructions }}
+
+{{ copilot_comments_section }}
+
+{{ review_comments_section }}
+
+{{ failing_checks_section }}
+
+{{ patch_coverage_section }}
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ead1484..b387d1a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,6 +15,9 @@ jobs:
       matrix:
         python-version: ["3.11", "3.12"]
 
+    env:
+      COVERAGE_FILE: .coverage.py${{ matrix.python-version }}
+
     steps:
       - uses: actions/checkout@v4
 
@@ -30,13 +33,22 @@ jobs:
           uv pip install \
             pydantic pyyaml jinja2 soundfile numpy scipy \
             click rich jsonlines \
-            pytest pytest-asyncio
+            pytest pytest-asyncio pytest-cov
 
       - name: Install package
         run: uv pip install --no-deps -e .
 
       - name: Run tests
-        run: .venv/bin/pytest tests/ -v --tb=short
+        run: .venv/bin/pytest tests/ -v --tb=short --cov avdp --cov-branch --cov-report=
+
+      - name: Upload raw coverage artifact
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: pr-agent-context-coverage-py${{ matrix.python-version }}
+          path: .coverage*
+          include-hidden-files: true
+          if-no-files-found: ignore
 
   lint:
     name: "Lint & type-check"
@@ -66,3 +78,63 @@ jobs:
 
       - name: mypy
         run: .venv/bin/mypy avdp/ --ignore-missing-imports
+
+  coverage:
+    name: "Combine coverage & generate XML"
+    runs-on: ubuntu-latest
+    needs: [test]
+    if: always()
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+        with:
+          version: "latest"
+          enable-cache: true
+          python-version: "3.11"
+
+      - name: Install coverage
+        run: uv pip install coverage[toml]
+
+      - name: Download raw coverage artifacts
+        uses: actions/download-artifact@v4
+        with:
+          pattern: pr-agent-context-coverage-*
+          path: coverage-data
+          merge-multiple: true
+
+      - name: Combine coverage and generate XML
+        run: |
+          .venv/bin/coverage combine coverage-data/
+          .venv/bin/coverage report
+          .venv/bin/coverage xml
+
+      - name: Upload combined coverage XML
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-xml
+          path: coverage.xml
+          if-no-files-found: warn
+
+  pr-agent-context:
+    name: "PR agent context"
+    if: ${{ always() && github.event_name == 'pull_request' }}
+    needs: [lint, test, coverage]
+    permissions:
+      contents: read
+      actions: read
+      pull-requests: write
+    uses: shaypal5/pr-agent-context/.github/workflows/pr-agent-context.yml@v4
+    with:
+      tool_ref: v4
+      target_patch_coverage: "100"
+      include_review_comments: true
+      include_failing_checks: true
+      include_patch_coverage: true
+      patch_coverage_source_mode: coverage_xml_artifact
+      coverage_report_artifact_name: coverage-xml
+      coverage_report_filename: coverage.xml
+      prompt_template_file: .github/pr-agent-context-template.md
+      debug_artifacts: true
diff --git a/.github/workflows/pr-agent-context-refresh.yml b/.github/workflows/pr-agent-context-refresh.yml
new file mode 100644
index 0000000..7d9a76b
--- /dev/null
+++ b/.github/workflows/pr-agent-context-refresh.yml
@@ -0,0 +1,55 @@
+name: pr-agent-context-refresh
+
+on:
+  pull_request_review:
+    types: [submitted, edited, dismissed]
+  pull_request_review_comment:
+    types: [created, edited, deleted]
+  check_run:
+    types: [completed]
+  status:
+
+concurrency:
+  group: >-
+    ${{ github.workflow }}-${{
+      github.event.pull_request.number ||
+      github.event.pull_request_review.pull_request.number ||
+      github.event.pull_request_review_comment.pull_request.number ||
+      github.event.check_run.head_sha ||
+      github.event.sha ||
+      github.sha
+    }}
+  cancel-in-progress: true
+
+jobs:
+  pr-agent-context-refresh:
+    name: "PR agent context refresh"
+    if: >-
+      github.event_name == 'pull_request_review' ||
+      github.event_name == 'pull_request_review_comment' ||
+      (github.event_name == 'check_run' &&
+       github.event.action == 'completed' &&
+       toJson(github.event.check_run.pull_requests) != '[]') ||
+      (github.event_name == 'status' && github.event.state != 'pending')
+    permissions:
+      contents: read
+      actions: read
+      pull-requests: write
+    uses: shaypal5/pr-agent-context/.github/workflows/pr-agent-context.yml@v4
+    with:
+      tool_ref: v4
+      execution_mode: refresh
+      publish_mode: append
+      publish_all_clear_comments_in_refresh: false
+      wait_for_reviews_to_settle: true
+      target_patch_coverage: "100"
+      include_review_comments: true
+      include_failing_checks: true
+      include_patch_coverage: true
+      patch_coverage_source_mode: coverage_xml_artifact
+      coverage_report_artifact_name: coverage-xml
+      coverage_report_filename: coverage.xml
+      enable_cross_run_coverage_lookup: true
+      coverage_source_workflows: CI
+      prompt_template_file: .github/pr-agent-context-template.md
+      debug_artifacts: true
diff --git a/pyproject.toml b/pyproject.toml
index 5bcfe0a..0f898f2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -84,3 +84,20 @@ ignore_missing_imports = true
 [tool.pytest.ini_options]
 testpaths = ["tests"]
 asyncio_mode = "auto"
+
+[tool.coverage.run]
+source = ["avdp"]
+branch = true
+relative_files = true
+
+[tool.coverage.paths]
+source = [
+    "avdp",
+    "/home/runner/work/*/*/avdp",
+]
+
+[tool.coverage.report]
+show_missing = true
+
+[tool.coverage.xml]
+output = "coverage.xml"