Third-Party Notices

This file lists third-party dependencies that require an explicit license notice.

Inclusion criterion — an entry exists here for a dependency that meets at least one of: (a) its bits are redistributed by this repository's packages or release artifacts (embedded model weights, assemblies bundled into the installers), so its license's notice obligations attach to us; (b) its package metadata is missing or misleading and the license provenance had to be established by hand (SmartComponents, bge-micro-v2); or (c) it records an explicit licensing decision (AngleSharp replacing the LGPL-3.0 Fizzler pair). Ordinary NuGet dependencies that are merely referenced in Directory.Packages.props and carry their own accurate upstream license metadata get no entry. Note the deliberate asymmetry for Apache-2.0 dependencies: the ones this repository redistributes (Apache.Arrow, section 5; the ms-marco model, section 7) get the full license text and — per Apache-2.0 §4(d) — their upstream NOTICE propagated here, while Apache-2.0 packages that are only referenced (e.g. OpenTelemetry, Gremlin.Net) intentionally get no entry, because §4(d)'s obligations attach to redistribution.

Sections 1-3 cover the local-embeddings feature (src/tools/Orkeon.Tools.Embeddings.Local/ + src/analysis/Orkeon.Analysis.Abstractions/DependencyInjection/LocalEmbeddingOptions.cs), all distributed under the MIT License. Section 4 covers the HTML/CSS engine of src/tools/Orkeon.Tools.Web/, distributed under the MIT License. Section 5 covers the LanceDB remote integration (src/core/Orkeon.Infrastructure/Memory/LanceDb/), distributed under the Apache License 2.0. Section 6 covers the embedded ECMAScript interpreter of the scripting DSL (src/scripting/Orkeon.Scripting/), distributed under the BSD 2-Clause License. Section 7 covers the cross-encoder reranker model embedded in src/rag/Orkeon.Rag.Onnx.Model/, distributed under the Apache License 2.0.

Which shipped artefacts actually embed model weights. Two sets of weights leave this repository, and it is worth being explicit about where. (1) The BGE-micro-v2 weights of section 2 (model.onnx, ~17 MB, MIT) ride inside the orkeon and orkeon-repl dotnet tool packages (tools/net10.0/any/LocalEmbeddingsModel/default/) and inside the platform installers built from the CLI (libexec/orkeon/LocalEmbeddingsModel/), because Orkeon.Hosting references Orkeon.Tools.Embeddings.Local and SmartComponents' content files follow into the publish output. The Orkeon.Tools.Embeddings.Local library package deliberately ships without them — not as a licensing stance, but because a consumer already gets them transitively from the SmartComponents.LocalEmbeddings dependency, so a second copy would double the download (see the OrkeonStripUpstreamContentFromPackage target in src/packaging/Orkeon.Tools.Embeddings.Local/). (2) The ms-marco-MiniLM-L-6-v2 weights of section 7 (~22 MB, Apache-2.0) are embedded resources of the Orkeon.Rag.Onnx.Model assembly, so they travel with every artefact that contains it: the Orkeon.Rag.Onnx.Model package itself, the orkeon tool and its installers. They are not in orkeon-repl, which does not reference that package. Both licences permit this redistribution; the notices below are what discharge their attribution obligations.


1. SmartComponents.LocalEmbeddings

License text reproduced verbatim — including the upstream file's indentation and the absence of a trailing period on its last line — from https://raw.githubusercontent.com/dotnet/smartcomponents/main/LICENSE (file last changed by upstream commit b7ed1a3c01e4e3b519b730964a6017c4d49720ac, 2024-03-06; retrieved 2026-06-11; GitHub license detection reports SPDX MIT):

    MIT License

    Copyright (c) .NET Foundation. 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:

    The above copyright notice and this permission notice shall be included in all
    copies or substantial portions of the Software.

    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

Provenance note: the NuGet package metadata (SmartComponents.LocalEmbeddings.nuspec) declares no <license>/<licenseUrl> element and its projectUrl points to dotnet-smartcomponents/smartcomponents, which is archived and ships no LICENSE file. That repository's README states: "The contents of this repository have now moved to https://github.com/dotnet/smartcomponents", where the code was open-sourced under the MIT LICENSE reproduced above. The transitive sibling package SmartComponents.Inference 0.1.0-preview10148 (same repository, same <authors> field, same missing <license> element) is covered by the same license text.


2. bge-micro-v2 (ONNX model)

  • Version: bundled inside SmartComponents.LocalEmbeddings 0.1.0-preview10148
  • License: MIT — Copyright (c) 2023 Benjamin Anderson (per the repository's LICENSE file; the model card YAML frontmatter also declares license: mit)
  • Source: https://huggingface.co/TaylorAI/bge-micro-v2
  • License text: https://huggingface.co/TaylorAI/bge-micro-v2/blob/main/LICENSE
  • Author: TaylorAI (HuggingFace quantization) — derived from BAAI's BGE family (Beijing Academy of Artificial Intelligence)
  • Role: 384-dimensional sentence embedding model. Produces the vectors returned by LocalEmbeddingProvider.EmbedBatchAsync(...).

License text reproduced verbatim from https://huggingface.co/TaylorAI/bge-micro-v2/raw/main/LICENSE (repository revision 3edf6d7de0faa426b09780416fe61009f26ae589, last modified 2024-06-06; retrieved 2026-06-11):

MIT License

Copyright (c) 2023 Benjamin Anderson

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:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

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.

Provenance note: per its model card, bge-micro-v2 was "distilled in a 2-step training process (bge-micro was step 1) from BAAI/bge-small-en-v1.5". The parent model (https://huggingface.co/BAAI/bge-small-en-v1.5, by the Beijing Academy of Artificial Intelligence) is itself published under MIT per its Hugging Face metadata (license: mit tag); the BAAI repository ships no separate LICENSE file.


3. Microsoft.Extensions.AI.Abstractions

The MIT License (MIT)

Copyright (c) .NET Foundation. 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:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

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.

4. AngleSharp

  • Version: 1.7.2 (pinned in Directory.Packages.props)
  • License: MIT (SPDX: MIT, per the package's <license type="expression"> element and GitHub's license detection) — Copyright (c) 2013 - 2026 AngleSharp
  • Source: https://github.com/AngleSharp/AngleSharp
  • NuGet: https://www.nuget.org/packages/AngleSharp
  • License text: https://github.com/AngleSharp/AngleSharp/blob/devel/LICENSE
  • Authors: AngleSharp (per the package's <authors> field in AngleSharp.nuspec; owner: Florian Rappl)
  • Role: W3C-compliant HTML5 parser with a native CSS selector engine, used by ScrapeElementTool (src/tools/Orkeon.Tools.Web/ScrapeElementTool.cs) to match elements via QuerySelectorAll. Introduced by remediation chantier R1.4 as the MIT-licensed replacement for the LGPL-3.0 pair Fizzler / Fizzler.Systems.HtmlAgilityPack, which is no longer referenced.

License text reproduced verbatim from https://raw.githubusercontent.com/AngleSharp/AngleSharp/devel/LICENSE (file last changed by upstream commit 8033a5c690af9c2c443f58e34875343fa4cc1d07, 2026-06-06; retrieved 2026-06-11):

The MIT License (MIT)

Copyright (c) 2013 - 2026 AngleSharp

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:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

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.

Note (dependency footprint): on net10.0 — the repository's target framework — AngleSharp 1.7.2 declares no package dependencies (its System.Text.Encoding.CodePages dependency only applies to the netstandard2.0 / .NET Framework target groups).


5. Apache.Arrow

  • Version: 23.0.0 (pinned in Directory.Packages.props)
  • License: Apache License 2.0 (SPDX: Apache-2.0, per the package's <license type="expression">Apache-2.0</license>)
  • Copyright: Copyright 2016-2025 The Apache Software Foundation (per the package's <copyright> field)
  • Source: https://github.com/apache/arrow-dotnet (the nuspec repository URL still points to https://github.com/apache/arrow, but the pinned commit 79e3844aca811abb3f9c463c0c27d407723e13be lives in the apache/arrow-dotnet repository, where the C# implementation moved)
  • NuGet: https://www.nuget.org/packages/Apache.Arrow (transitive sibling Apache.Arrow.Scalars 23.0.0, same repository and license, is covered by the same text)
  • License text: https://github.com/apache/arrow-dotnet/blob/79e3844aca811abb3f9c463c0c27d407723e13be/LICENSE.txt
  • Role: Arrow IPC encode/decode for the LanceDB Cloud/Enterprise REST protocol (src/core/Orkeon.Infrastructure/Memory/LanceDb/LanceDbArrowCodec.cs): the LanceDB insert/merge_insert/create endpoints require application/vnd.apache.arrow.stream payloads and the query endpoint returns Arrow IPC file binary data.

License text reproduced verbatim from https://raw.githubusercontent.com/apache/arrow-dotnet/79e3844aca811abb3f9c463c0c27d407723e13be/LICENSE.txt (the commit pinned in the 23.0.0 nuspec; retrieved 2026-06-11). The upstream file appends a FlatBuffers provenance note after the Apache-2.0 text; it is kept as-is:


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--------------------------------------------------------------------------------
This product includes code from FlatBuffers:

* src/Apache.Arrow/Flatbuf/FlatBuffers/

Copyright: (C) 2014 Google Inc.
Home page: https://github.com/google/flatbuffers/
Origin: https://github.com/google/flatbuffers/tree/v23.5.9/net/FlatBuffers
License: https://www.apache.org/licenses/LICENSE-2.0

Per Apache-2.0 §4(d), the upstream NOTICE.txt is propagated verbatim (https://raw.githubusercontent.com/apache/arrow-dotnet/79e3844aca811abb3f9c463c0c27d407723e13be/NOTICE.txt, retrieved 2026-06-11):

Apache Arrow .NET
Copyright 2018-2025 The Apache Software Foundation

This product includes software developed at
The Apache Software Foundation (http://www.apache.org/).

6. Jint

License text — canonical SPDX BSD-2-Clause text, with the copyright line from upstream LICENSE.txt (retrieved 2026-06-21):

BSD 2-Clause License

Copyright (c) 2013, Sebastien Ros
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.

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.

7. ms-marco-MiniLM-L-6-v2 (ONNX model, embedded)

Full provenance, retrieval date (2026-07-26) and SHA-256 integrity hashes are recorded in the package-level notice file src/rag/Orkeon.Rag.Onnx.Model/THIRD-PARTY-NOTICES.md, which ships inside the NuGet package. Training data note: the model was trained on the MS MARCO passage-ranking dataset (Microsoft; the dataset itself carries a non-commercial research license, while the trained model is distributed by its authors under Apache-2.0).