echarles · Oct 17, 2026 · Oct 17, 2026
diff --git a/.licenserc.yaml b/.licenserc.yaml
@@ -1,12 +1,11 @@
 header:
   license:
-    spdx-id: Datalayer
+    spdx-id: BSD-3-Clause
     copyright-owner: Datalayer, Inc.
     copyright-year: 2026-Present
     content: |
       Copyright (c) [year] [owner]
-
-      Datalayer License
+      BSD 3-Clause License
 
   paths-ignore:
     - '**/*.ipynb'

diff --git a/LICENSE b/LICENSE
@@ -0,0 +1,29 @@
+BSD 3-Clause License
+
+Copyright (c) 2026, Datalayer, Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/Makefile b/Makefile
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 SHELL := /bin/bash
 

diff --git a/apps/README.md b/apps/README.md
@@ -1,7 +1,7 @@
 <!--
   Copyright (c) 2026-Present Datalayer, Inc.
 
-  Datalayer License
+  BSD 3-Clause License
 -->
 
 [![Datalayer](https://images.datalayer.io/legacy/datalayer-25.svg)](https://datalayer.ai)

diff --git a/apps/mcp-server/LICENSE b/apps/mcp-server/LICENSE
@@ -0,0 +1,29 @@
+BSD 3-Clause License
+
+Copyright (c) 2026, Datalayer, Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/apps/mcp-server/README.md b/apps/mcp-server/README.md
@@ -1,7 +1,7 @@
 <!--
   Copyright (c) 2026-Present Datalayer, Inc.
 
-  Datalayer License
+  BSD 3-Clause License
 -->
 
 [![Datalayer](https://images.datalayer.io/legacy/datalayer-25.svg)](https://datalayer.ai)
@@ -122,4 +122,4 @@ and a server is built once per distinct set of toolsets and shared.
 
 ## License
 
-Datalayer License.
+BSD 3-Clause License.
diff --git a/apps/mcp-server/pyproject.toml b/apps/mcp-server/pyproject.toml
@@ -1,17 +1,17 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"
 
 [project]
 name = "reactor_mcp_server"
-version = "1.3.0"
+version = "1.3.1"
 description = "An extensible MCP server built on Reactor: tools are contributions, and a contribution can be extended"
 readme = "README.md"
-license = { text = "Datalayer License" }
+license = { text = "BSD-3-Clause" }
 requires-python = ">=3.10"
 authors = [{ name = "Datalayer", email = "support@datalayer.io" }]
 keywords = ["mcp", "reactor", "plugins", "tools"]
@@ -24,7 +24,7 @@ classifiers = [
     "Programming Language :: Python :: 3.13",
 ]
 dependencies = [
-    "datalayer_reactor>=1.3.0",
+    "datalayer_reactor>=1.3.1",
     "mcp>=2,<3",
     "starlette",
 ]

diff --git a/apps/mcp-server/reactor_mcp_server/__init__.py b/apps/mcp-server/reactor_mcp_server/__init__.py
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 """An extensible MCP server built on Reactor.
 
@@ -64,7 +64,7 @@
 
     __version__ = _distribution_version("reactor_mcp_server")
 except Exception:  # pragma: no cover - not installed as a distribution
-    __version__ = "1.3.0"
+    __version__ = "1.3.1"
 
 __all__ = [
     "BuiltServer",

diff --git a/apps/mcp-server/reactor_mcp_server/__main__.py b/apps/mcp-server/reactor_mcp_server/__main__.py
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 """Run the installed MCP extensions as a reactor application.
 

diff --git a/apps/mcp-server/reactor_mcp_server/app.py b/apps/mcp-server/reactor_mcp_server/app.py
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 """Serving the host over HTTP, with the URL deciding what is served.
 

diff --git a/apps/mcp-server/reactor_mcp_server/extension.py b/apps/mcp-server/reactor_mcp_server/extension.py
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 """What an MCP extension is.
 

diff --git a/apps/mcp-server/reactor_mcp_server/points.py b/apps/mcp-server/reactor_mcp_server/points.py
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 """The contribution points an MCP server reads, and the events that fill them.
 

diff --git a/apps/mcp-server/reactor_mcp_server/server.py b/apps/mcp-server/reactor_mcp_server/server.py
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 """Building an MCP server out of what extensions offered.
 

diff --git a/apps/mcp-server/reactor_mcp_server/tools.py b/apps/mcp-server/reactor_mcp_server/tools.py
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 """What an extension offers, and what another extension may do to it.
 

diff --git a/apps/mcp-server/reactor_mcp_server/toolsets.py b/apps/mcp-server/reactor_mcp_server/toolsets.py
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 """Toolsets, and which of them a URL asks for.
 

diff --git a/apps/mcp-server/tests/test_activation_by_url.py b/apps/mcp-server/tests/test_activation_by_url.py
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 """What a URL asks for, and what it gets.
 

diff --git a/apps/mcp-server/tests/test_review_follow_ups.py b/apps/mcp-server/tests/test_review_follow_ups.py
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 """What the review of the MCP server plugin found, kept from coming back.
 
 Each test here is one finding: a lifecycle hook the platform never called, a

diff --git a/apps/mcp-server/tests/test_served_over_http.py b/apps/mcp-server/tests/test_served_over_http.py
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 """A real MCP client, over HTTP, against the served host.
 

diff --git a/apps/mcp-server/tests/test_tools_are_contributions.py b/apps/mcp-server/tests/test_tools_are_contributions.py
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 """Tools are offered, not registered — and an offer can be extended.
 

diff --git a/apps/mcp-server/tests/test_toolsets_first_class.py b/apps/mcp-server/tests/test_toolsets_first_class.py
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 """What a host does with toolsets beyond picking them from a URL.
 

diff --git a/decks/about-reactor.yaml b/decks/about-reactor.yaml
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 deck:
   title: About Reactor

diff --git a/dev/bump_version.py b/dev/bump_version.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 # Copyright (c) 2024- Datalayer, Inc.
 #

diff --git a/docs/LICENSE b/docs/LICENSE
@@ -1,21 +1,29 @@
-Copyright (c) 2021-2023 Datalayer, Inc.
+BSD 3-Clause License
 
-MIT License
+Copyright (c) 2026, Datalayer, Inc.
+All rights reserved.
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
 
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
 
-THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/docs/Makefile b/docs/Makefile
@@ -1,6 +1,6 @@
 # Copyright (c) 2026-Present Datalayer, Inc.
 #
-# Datalayer License
+# BSD 3-Clause License
 
 # Copyright (c) 2025-2026 Datalayer, Inc.
 # Distributed under the terms of the Modified BSD License.

diff --git a/docs/babel.config.js b/docs/babel.config.js
@@ -1,7 +1,7 @@
 /*
  * Copyright (c) 2026-Present Datalayer, Inc.
  *
- * Datalayer License
+ * BSD 3-Clause License
  */
 
 /*

diff --git a/docs/docusaurus.config.js b/docs/docusaurus.config.js
@@ -1,7 +1,7 @@
 /*
  * Copyright (c) 2026-Present Datalayer, Inc.
  *
- * Datalayer License
+ * BSD 3-Clause License
  */
 
 /*

diff --git a/docs/package.json b/docs/package.json
@@ -63,5 +63,6 @@
       "last 1 firefox version",
       "last 1 safari version"
     ]
-  }
+  },
+  "license": "BSD-3-Clause"
 }
diff --git a/docs/sidebars.js b/docs/sidebars.js
@@ -1,7 +1,7 @@
 /*
  * Copyright (c) 2026-Present Datalayer, Inc.
  *
- * Datalayer License
+ * BSD 3-Clause License
  */
 
 /*

diff --git a/docs/src/components/CmsDemo/CmsApp.tsx b/docs/src/components/CmsDemo/CmsApp.tsx
@@ -1,7 +1,7 @@
 /*
  * Copyright (c) 2026-Present Datalayer, Inc.
  *
- * Datalayer License
+ * BSD 3-Clause License
  */
 
 /**

diff --git a/docs/src/components/CmsDemo/backend.ts b/docs/src/components/CmsDemo/backend.ts
@@ -1,7 +1,7 @@
 /*
  * Copyright (c) 2026-Present Datalayer, Inc.
  *
- * Datalayer License
+ * BSD 3-Clause License
  */
 
 /**

diff --git a/docs/src/components/CmsDemo/cms-theme.css b/docs/src/components/CmsDemo/cms-theme.css
@@ -1,7 +1,7 @@
 /*
  * Copyright (c) 2026-Present Datalayer, Inc.
  *
- * Datalayer License
+ * BSD 3-Clause License
  */
 
 /*

diff --git a/docs/src/components/CmsDemo/index.tsx b/docs/src/components/CmsDemo/index.tsx
@@ -1,7 +1,7 @@
 /*
  * Copyright (c) 2026-Present Datalayer, Inc.
  *
- * Datalayer License
+ * BSD 3-Clause License
  */
 
 /**