diff --git a/CHANGELOG.md b/CHANGELOG.md
index 380deb68..13bd6c9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,16 @@ All notable changes to this project will be documented in this file.
 **Important:** Changes need to be documented below this block as this is the header section. Each section should be separated by a horizontal rule. Newer changelog entries need to be added on top of prior ones to keep the history chronological with most recent changes first.
 
 
+---
+
+## [0.40.1] - 2026-03-06
+
+### Fixed
+
+- Restored the published `pip install specfact-cli` wheel payload so the core `specfact_cli` package is included again, including `specfact_cli/cli.py`.
+- Restored the standard `specfact` console command for installed users; both `specfact` and `specfact-cli` now resolve to `specfact_cli.cli:cli_main` from the built artifact.
+- Hardened Hatch wheel packaging for the `src/` layout by using explicit source mapping, preventing release artifacts that contain only force-included resources/modules without the actual CLI package code.
+
 ---
 
 ## [0.40.0] - 2026-02-28
diff --git a/openspec/CHANGE_ORDER.md b/openspec/CHANGE_ORDER.md
index 8d4d4b0b..436bd56a 100644
--- a/openspec/CHANGE_ORDER.md
+++ b/openspec/CHANGE_ORDER.md
@@ -118,6 +118,12 @@ These are derived extensions of the same 2026-02-15 plan and are required to ope
 |--------|-------|----------------|----------|------------|
 | — | — | ✅ ci-01 implemented 2026-02-16 (see Implemented above) | — | — |
 
+### Packaging and distribution
+
+| Module | Order | Change folder | GitHub # | Blocked by |
+|--------|-------|---------------|----------|------------|
+| packaging | 01 | packaging-01-wheel-package-inclusion | TBD | module-migration-06 ✅; release artifact regression discovered post-0.40.0 publish |
+
 ### Developer workflow (parallel branch operations)
 
 | Module | Order | Change folder | GitHub # | Blocked by |
diff --git a/openspec/changes/packaging-01-wheel-package-inclusion/CHANGE_VALIDATION.md b/openspec/changes/packaging-01-wheel-package-inclusion/CHANGE_VALIDATION.md
new file mode 100644
index 00000000..ee2ef9d4
--- /dev/null
+++ b/openspec/changes/packaging-01-wheel-package-inclusion/CHANGE_VALIDATION.md
@@ -0,0 +1,31 @@
+# Change Validation
+
+## Scope check
+
+This change is narrowly scoped to Python package distribution for `pip install specfact-cli`.
+
+## Implemented
+
+- Switched Hatch wheel target from shorthand `packages = ["src/specfact_cli"]` to explicit:
+  - `only-include = ["src/specfact_cli"]`
+  - `sources = ["src"]`
+- Added regression coverage for explicit wheel source mapping and console script entrypoints.
+- Verified built wheel contents include `specfact_cli/__init__.py` and `specfact_cli/cli.py`.
+
+## Validation summary
+
+- packaging regression tests: pass
+- built wheel artifact inspection: pass
+- direct import from built wheel: pass
+
+## Release note
+
+A patch release is required before PyPI users receive this fix, because `0.40.0` is already published with the broken wheel payload.
+
+## Install verification
+
+A clean temp venv install of `dist/specfact_cli-0.40.1-py3-none-any.whl` was verified with both:
+- `specfact -v`
+- `specfact-cli -v`
+
+Both commands returned `SpecFact CLI version 0.40.1`.
diff --git a/openspec/changes/packaging-01-wheel-package-inclusion/TDD_EVIDENCE.md b/openspec/changes/packaging-01-wheel-package-inclusion/TDD_EVIDENCE.md
new file mode 100644
index 00000000..dfe72354
--- /dev/null
+++ b/openspec/changes/packaging-01-wheel-package-inclusion/TDD_EVIDENCE.md
@@ -0,0 +1,91 @@
+# TDD Evidence
+
+## Failing Evidence
+
+### 2026-03-06 installed artifact inspection
+
+Commands:
+
+```bash
+python - <<'PY'
+import site, pathlib
+root = pathlib.Path(site.getusersitepackages()) / 'specfact_cli'
+print('cli.py exists:', (root / 'cli.py').exists())
+print('__init__.py exists:', (root / '__init__.py').exists())
+PY
+```
+
+Observed failure summary:
+- installed `specfact_cli` package contained only `modules/` and `resources/`
+- `specfact_cli/cli.py` missing from installed `0.40.0` wheel payload
+- console script `specfact-cli` failed with `ModuleNotFoundError: No module named 'specfact_cli.cli'`
+
+### 2026-03-06 pre-fix regression test
+
+Command:
+
+```bash
+HATCH_DATA_DIR=/tmp/hatch-data HATCH_CACHE_DIR=/tmp/hatch-cache VIRTUALENV_OVERRIDE_APP_DATA=/tmp/virtualenv-appdata hatch run pytest tests/unit/packaging/test_core_package_includes.py -q
+```
+
+Observed failure summary:
+- `test_pyproject_wheel_explicitly_maps_src_package_root` failed because wheel config lacked explicit `only-include` / `sources` mapping for `src/specfact_cli`
+
+## Passing Evidence
+
+### 2026-03-06 post-fix regression test
+
+Command:
+
+```bash
+HATCH_DATA_DIR=/tmp/hatch-data HATCH_CACHE_DIR=/tmp/hatch-cache VIRTUALENV_OVERRIDE_APP_DATA=/tmp/virtualenv-appdata hatch run pytest tests/unit/packaging/test_core_package_includes.py -q
+```
+
+Result:
+- `6 passed`
+
+### 2026-03-06 built wheel artifact verification
+
+Commands:
+
+```bash
+HATCH_DATA_DIR=/tmp/hatch-data HATCH_CACHE_DIR=/tmp/hatch-cache VIRTUALENV_OVERRIDE_APP_DATA=/tmp/virtualenv-appdata hatch build -t wheel
+python - <<'PY'
+import zipfile
+from pathlib import Path
+wheel = Path('dist/specfact_cli-0.40.1-py3-none-any.whl')
+with zipfile.ZipFile(wheel) as zf:
+    assert 'specfact_cli/__init__.py' in zf.namelist()
+    assert 'specfact_cli/cli.py' in zf.namelist()
+    print(zf.read('specfact_cli-0.40.0.dist-info/entry_points.txt').decode('utf-8'))
+PY
+python - <<'PY'
+import sys
+sys.path.insert(0, 'dist/specfact_cli-0.40.1-py3-none-any.whl')
+import specfact_cli.cli as cli
+print(cli.__file__)
+print(hasattr(cli, 'cli_main'))
+PY
+```
+
+Result summary:
+- built wheel contains `specfact_cli/__init__.py`
+- built wheel contains `specfact_cli/cli.py`
+- entry points include both `specfact` and `specfact-cli` targeting `specfact_cli.cli:cli_main`
+- importing `specfact_cli.cli` from the wheel succeeds
+
+### 2026-03-06 clean install command verification
+
+Commands:
+
+```bash
+python -m venv /tmp/specfact-cli-wheel-verify --system-site-packages
+/tmp/specfact-cli-wheel-verify/bin/pip install --force-reinstall --no-deps dist/specfact_cli-0.40.1-py3-none-any.whl
+/tmp/specfact-cli-wheel-verify/bin/specfact -v
+/tmp/specfact-cli-wheel-verify/bin/specfact-cli -v
+```
+
+Result summary:
+- installed wheel exposes `specfact`
+- installed wheel exposes `specfact-cli`
+- both commands return `SpecFact CLI version 0.40.1`
diff --git a/openspec/changes/packaging-01-wheel-package-inclusion/proposal.md b/openspec/changes/packaging-01-wheel-package-inclusion/proposal.md
new file mode 100644
index 00000000..be7030dd
--- /dev/null
+++ b/openspec/changes/packaging-01-wheel-package-inclusion/proposal.md
@@ -0,0 +1,23 @@
+# packaging-01-wheel-package-inclusion
+
+## Summary
+
+Fix the released `specfact-cli` wheel so a plain `pip install specfact-cli` installs the core `specfact_cli` Python package, including `specfact_cli.cli`, and both declared console scripts can start successfully.
+
+## Problem
+
+The published `0.40.0` artifact installs console script wrappers but the wheel payload omits the actual `specfact_cli` package code. The installed site-packages directory contains only force-included `modules/` and `resources/`, causing:
+
+- `specfact` missing or unusable after install
+- `specfact-cli` wrapper failing with `ModuleNotFoundError: No module named 'specfact_cli.cli'`
+
+## Scope
+
+- Correct wheel packaging configuration for core package inclusion
+- Add regression coverage that inspects the built wheel contents
+- Verify the built wheel contains `specfact_cli/cli.py` and both console scripts resolve to `specfact_cli.cli:cli_main`
+
+## Out of Scope
+
+- Broader release automation changes
+- Marketplace/module bundle behavior changes
diff --git a/openspec/changes/packaging-01-wheel-package-inclusion/specs/package-distribution/spec.md b/openspec/changes/packaging-01-wheel-package-inclusion/specs/package-distribution/spec.md
new file mode 100644
index 00000000..b7be683d
--- /dev/null
+++ b/openspec/changes/packaging-01-wheel-package-inclusion/specs/package-distribution/spec.md
@@ -0,0 +1,19 @@
+# package-distribution
+
+## ADDED Requirements
+
+### Requirement: Released wheel includes core CLI package
+
+The published wheel MUST include the importable `specfact_cli` Python package required by declared console scripts.
+
+#### Scenario: Wheel contains core CLI module
+- **GIVEN** a wheel is built from the repository release configuration
+- **WHEN** its contents are inspected
+- **THEN** it includes `specfact_cli/cli.py`
+- **AND** it includes `specfact_cli/__init__.py`
+
+#### Scenario: Console scripts target importable CLI entrypoint
+- **GIVEN** the built distribution metadata
+- **WHEN** console script entrypoints are inspected
+- **THEN** both `specfact` and `specfact-cli` resolve to `specfact_cli.cli:cli_main`
+- **AND** importing `specfact_cli.cli` from the built artifact succeeds
diff --git a/openspec/changes/packaging-01-wheel-package-inclusion/tasks.md b/openspec/changes/packaging-01-wheel-package-inclusion/tasks.md
new file mode 100644
index 00000000..97c45753
--- /dev/null
+++ b/openspec/changes/packaging-01-wheel-package-inclusion/tasks.md
@@ -0,0 +1,7 @@
+# Tasks
+
+- [x] 1. Record failing evidence for the installed-artifact regression and build-content regression
+- [x] 2. Add/adjust regression tests for wheel contents and console-script entrypoint expectations
+- [x] 3. Fix build configuration so the wheel includes the `specfact_cli` package code
+- [x] 4. Rebuild or inspect artifact locally and rerun targeted regression tests
+- [x] 5. Update TDD_EVIDENCE.md and CHANGE_VALIDATION.md with failing/passing evidence
diff --git a/pyproject.toml b/pyproject.toml
index e6102a3e..74dd1008 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "specfact-cli"
-version = "0.40.0"
+version = "0.40.1"
 description = "The swiss knife CLI for agile DevOps teams. Keep backlog, specs, tests, and code in sync with validation and contract enforcement for new projects and long-lived codebases."
 readme = "README.md"
 requires-python = ">=3.11"
@@ -377,9 +377,10 @@ method = "thread"
 dev-mode-dirs = ["src","tools"]
 
 [tool.hatch.build.targets.wheel]
-packages = [
+only-include = [
     "src/specfact_cli",
 ]
+sources = ["src"]
 
 [tool.hatch.build.targets.wheel.force-include]
 "resources/prompts" = "specfact_cli/resources/prompts"
diff --git a/setup.py b/setup.py
index 56f04f93..3c305a56 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
 if __name__ == "__main__":
     _setup = setup(
         name="specfact-cli",
-        version="0.40.0",
+        version="0.40.1",
         description=(
             "The swiss knife CLI for agile DevOps teams. Keep backlog, specs, tests, and code in sync with "
             "validation and contract enforcement for new projects and long-lived codebases."
diff --git a/src/__init__.py b/src/__init__.py
index 4992b2ee..3ebce126 100644
--- a/src/__init__.py
+++ b/src/__init__.py
@@ -3,4 +3,4 @@
 """
 
 # Package version: keep in sync with pyproject.toml, setup.py, src/specfact_cli/__init__.py
-__version__ = "0.40.0"
+__version__ = "0.40.1"
diff --git a/src/specfact_cli/__init__.py b/src/specfact_cli/__init__.py
index a701815c..68e2b918 100644
--- a/src/specfact_cli/__init__.py
+++ b/src/specfact_cli/__init__.py
@@ -42,6 +42,6 @@ def _bootstrap_bundle_paths() -> None:
 
 _bootstrap_bundle_paths()
 
-__version__ = "0.40.0"
+__version__ = "0.40.1"
 
 __all__ = ["__version__"]
diff --git a/tests/unit/packaging/test_core_package_includes.py b/tests/unit/packaging/test_core_package_includes.py
index e96b9175..a94bdb53 100644
--- a/tests/unit/packaging/test_core_package_includes.py
+++ b/tests/unit/packaging/test_core_package_includes.py
@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import re
+import tomllib
 from pathlib import Path
 
 import pytest
@@ -43,6 +44,22 @@ def test_pyproject_wheel_packages_exist() -> None:
     assert "specfact_cli" in raw
 
 
+def test_pyproject_wheel_explicitly_maps_src_package_root() -> None:
+    """Wheel build config must explicitly map the src package root for specfact_cli."""
+    data = tomllib.loads(PYPROJECT.read_text(encoding="utf-8"))
+    wheel = data["tool"]["hatch"]["build"]["targets"]["wheel"]
+    assert wheel.get("only-include") == ["src/specfact_cli"]
+    assert wheel.get("sources") == ["src"]
+
+
+def test_project_scripts_target_cli_main() -> None:
+    """Both console scripts must resolve to the importable CLI entrypoint."""
+    data = tomllib.loads(PYPROJECT.read_text(encoding="utf-8"))
+    scripts = data["project"]["scripts"]
+    assert scripts["specfact"] == "specfact_cli.cli:cli_main"
+    assert scripts["specfact-cli"] == "specfact_cli.cli:cli_main"
+
+
 def test_pyproject_force_include_does_not_reference_deleted_modules() -> None:
     """force-include must not reference the 17 deleted module dirs (exact key match)."""
     raw = PYPROJECT.read_text(encoding="utf-8")