diff --git a/.github/workflows/linter.yaml b/.github/workflows/linter.yaml
index 584d68bd1..7ae013f35 100644
--- a/.github/workflows/linter.yaml
+++ b/.github/workflows/linter.yaml
@@ -45,9 +45,7 @@ jobs:
       - name: Run Pyright (Pylance equivalent)
         id: pyright
         continue-on-error: true
-        uses: jakebailey/pyright-action@v2
-        with:
-          pylance-version: latest-release
+        run: uv run pyright src
 
       - name: Run JSCPD for copy-paste detection
         id: jscpd
diff --git a/pyproject.toml b/pyproject.toml
index 0814a70e5..129586f97 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -127,6 +127,7 @@ dev = [
   "trio",
   "uvicorn>=0.35.0",
   "pytest-timeout>=2.4.0",
+  "pyright",
   "a2a-sdk[all]",
 ]
 
diff --git a/scripts/lint.sh b/scripts/lint.sh
new file mode 100755
index 000000000..5fd7c2177
--- /dev/null
+++ b/scripts/lint.sh
@@ -0,0 +1,60 @@
+#!/bin/bash
+# Local replica of .github/workflows/linter.yaml (excluding jscpd copy-paste check)
+
+# ANSI color codes for premium output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+BOLD='\033[1m'
+NC='\033[0m' # No Color
+
+FAILED=0
+
+echo -e "${BLUE}${BOLD}=== A2A Python Fixed-and-Lint Suite ===${NC}"
+echo -e "Fixing formatting and linting issues, then verifying types...\n"
+
+# 1. Ruff Linter (with fix)
+echo -e "${YELLOW}${BOLD}--- [1/4] Running Ruff Linter (fix) ---${NC}"
+if uv run ruff check --fix; then
+    echo -e "${GREEN}✓ Ruff Linter passed (and fixed what it could)${NC}"
+else
+    echo -e "${RED}✗ Ruff Linter failed${NC}"
+    FAILED=1
+fi
+
+# 2. Ruff Formatter
+echo -e "\n${YELLOW}${BOLD}--- [2/4] Running Ruff Formatter (apply) ---${NC}"
+if uv run ruff format; then
+    echo -e "${GREEN}✓ Ruff Formatter applied${NC}"
+else
+    echo -e "${RED}✗ Ruff Formatter failed${NC}"
+    FAILED=1
+fi
+
+# 3. MyPy Type Checker
+echo -e "\n${YELLOW}${BOLD}--- [3/4] Running MyPy Type Checker ---${NC}"
+if uv run mypy src; then
+    echo -e "${GREEN}✓ MyPy passed${NC}"
+else
+    echo -e "${RED}✗ MyPy failed${NC}"
+    FAILED=1
+fi
+
+# 4. Pyright Type Checker
+echo -e "\n${YELLOW}${BOLD}--- [4/4] Running Pyright ---${NC}"
+if uv run pyright; then
+    echo -e "${GREEN}✓ Pyright passed${NC}"
+else
+    echo -e "${RED}✗ Pyright failed${NC}"
+    FAILED=1
+fi
+
+echo -e "\n${BLUE}${BOLD}=========================================${NC}"
+if [ $FAILED -eq 0 ]; then
+    echo -e "${GREEN}${BOLD}SUCCESS: All linting and formatting tasks complete!${NC}"
+    exit 0
+else
+    echo -e "${RED}${BOLD}FAILURE: One or more steps failed.${NC}"
+    exit 1
+fi
diff --git a/uv.lock b/uv.lock
index 8c7dfb31c..f42a1c36e 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1,5 +1,5 @@
 version = 1
-revision = 3
+revision = 2
 requires-python = ">=3.10"
 resolution-markers = [
     "python_full_version >= '3.14'",
@@ -21,9 +21,6 @@ dependencies = [
 ]
 
 [package.optional-dependencies]
-db-cli = [
-    { name = "alembic" },
-]
 all = [
     { name = "alembic" },
     { name = "cryptography" },
@@ -38,6 +35,9 @@ all = [
     { name = "sse-starlette" },
     { name = "starlette" },
 ]
+db-cli = [
+    { name = "alembic" },
+]
 encryption = [
     { name = "cryptography" },
 ]
@@ -79,6 +79,7 @@ dev = [
     { name = "no-implicit-optional" },
     { name = "pre-commit" },
     { name = "pyjwt" },
+    { name = "pyright" },
     { name = "pytest" },
     { name = "pytest-asyncio" },
     { name = "pytest-cov" },
@@ -97,8 +98,8 @@ dev = [
 
 [package.metadata]
 requires-dist = [
-    { name = "alembic", marker = "extra == 'db-cli'", specifier = ">=1.14.0" },
     { name = "alembic", marker = "extra == 'all'", specifier = ">=1.14.0" },
+    { name = "alembic", marker = "extra == 'db-cli'", specifier = ">=1.14.0" },
     { name = "cryptography", marker = "extra == 'all'", specifier = ">=43.0.0" },
     { name = "cryptography", marker = "extra == 'encryption'", specifier = ">=43.0.0" },
     { name = "fastapi", marker = "extra == 'all'", specifier = ">=0.115.2" },
@@ -136,7 +137,7 @@ requires-dist = [
     { name = "starlette", marker = "extra == 'all'" },
     { name = "starlette", marker = "extra == 'http-server'" },
 ]
-provides-extras = ["db-cli", "all", "encryption", "grpc", "http-server", "mysql", "postgresql", "signing", "sql", "sqlite", "telemetry"]
+provides-extras = ["all", "db-cli", "encryption", "grpc", "http-server", "mysql", "postgresql", "signing", "sql", "sqlite", "telemetry"]
 
 [package.metadata.requires-dev]
 dev = [
@@ -146,6 +147,7 @@ dev = [
     { name = "no-implicit-optional" },
     { name = "pre-commit" },
     { name = "pyjwt", specifier = ">=2.0.0" },
+    { name = "pyright" },
     { name = "pytest", specifier = ">=8.3.5" },
     { name = "pytest-asyncio", specifier = ">=0.26.0" },
     { name = "pytest-cov", specifier = ">=6.1.1" },
@@ -1801,6 +1803,19 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/7c/4c/ad33b92b9864cbde84f259d5df035a6447f91891f5be77788e2a3892bce3/pymysql-1.1.2-py3-none-any.whl", hash = "sha256:e6b1d89711dd51f8f74b1631fe08f039e7d76cf67a42a323d3178f0f25762ed9", size = 45300, upload-time = "2025-08-24T12:55:53.394Z" },
 ]
 
+[[package]]
+name = "pyright"
+version = "1.1.408"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "nodeenv" },
+    { name = "typing-extensions" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/74/b2/5db700e52554b8f025faa9c3c624c59f1f6c8841ba81ab97641b54322f16/pyright-1.1.408.tar.gz", hash = "sha256:f28f2321f96852fa50b5829ea492f6adb0e6954568d1caa3f3af3a5f555eb684", size = 4400578, upload-time = "2026-01-08T08:07:38.795Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/0c/82/a2c93e32800940d9573fb28c346772a14778b84ba7524e691b324620ab89/pyright-1.1.408-py3-none-any.whl", hash = "sha256:090b32865f4fdb1e0e6cd82bf5618480d48eecd2eb2e70f960982a3d9a4c17c1", size = 6399144, upload-time = "2026-01-08T08:07:37.082Z" },
+]
+
 [[package]]
 name = "pytest"
 version = "9.0.2"