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
- Version:
0.1.0-preview10148(pinned inDirectory.Packages.props) - License: MIT (SPDX:
MIT) — Copyright (c) .NET Foundation. All rights reserved. - Source: https://github.com/dotnet/smartcomponents (canonical location; the package's
projectUrlhttps://github.com/dotnet-smartcomponents/smartcomponents points to the original experimental repository, now archived, whose README redirects to the new one) - License text: https://github.com/dotnet/smartcomponents/blob/main/LICENSE
- Authors: Microsoft (per the package's
<authors>field inSmartComponents.LocalEmbeddings.nuspec) - Role: ONNX inference wrapper that ships an embedded BGE-micro-v2 model and exposes
the
LocalEmbeddertype consumed byLocalEmbeddingProvider.
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
LICENSEfile; the model card YAML frontmatter also declareslicense: 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
- Version:
10.9.0(pinned inDirectory.Packages.props) - License: MIT
- Source: https://github.com/dotnet/extensions
- NuGet: https://www.nuget.org/packages/Microsoft.Extensions.AI.Abstractions
- Role: Standard .NET AI abstractions (
IEmbeddingGenerator<,>,EmbeddingGeneratorMetadata) consumed byLocalEmbeddingGenerator(the optional bridge insrc/tools/Orkeon.Tools.Embeddings.Local/LocalEmbeddingGenerator.cs).
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 inDirectory.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 inAngleSharp.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 viaQuerySelectorAll. Introduced by remediation chantier R1.4 as the MIT-licensed replacement for the LGPL-3.0 pairFizzler/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 inDirectory.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
repositoryURL still points to https://github.com/apache/arrow, but the pinned commit79e3844aca811abb3f9c463c0c27d407723e13belives in theapache/arrow-dotnetrepository, 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 LanceDBinsert/merge_insert/createendpoints requireapplication/vnd.apache.arrow.streampayloads and thequeryendpoint 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:
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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This product includes code from FlatBuffers:
* src/Apache.Arrow/Flatbuf/FlatBuffers/
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Per Apache-2.0 §4(d), the upstream NOTICE.txt is propagated verbatim
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retrieved 2026-06-11):
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6. Jint
- Version:
4.16.1(pinned inDirectory.Packages.props) - License: BSD 2-Clause "Simplified" License (SPDX:
BSD-2-Clause) - Copyright: Copyright (c) 2013, Sebastien Ros — All rights reserved.
- Source: https://github.com/sebastienros/jint
- NuGet: https://www.nuget.org/packages/Jint
- License text: https://github.com/sebastienros/jint/blob/v4.16.1/LICENSE.txt
- Role: Embedded ECMAScript interpreter that executes the TypeScript-syntax
scripting DSL (
.ork.ts):src/scripting/Orkeon.Scriptingtranspiles scripts via esbuild and runs them on the Jint engine (e.g.Adapters/JsCrewConfigurationAdapter.cs,Bindings/AgentBuilderBinding.cs).
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"
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
7. ms-marco-MiniLM-L-6-v2 (ONNX model, embedded)
- Version: int8-quantized ONNX export embedded in
Orkeon.Rag.Onnx.Model(src/rag/Orkeon.Rag.Onnx.Model/assets/msmarco-minilm-l6-v2.quant.onnx+ matchingvocab.txt) — the only model weights redistributed by this repository. - License: Apache License 2.0 (SPDX:
Apache-2.0) - Source: https://huggingface.co/cross-encoder/ms-marco-MiniLM-L-6-v2 (sentence-transformers, UKP Lab, Technische Universität Darmstadt); embedded artifact exported by https://huggingface.co/Xenova/ms-marco-MiniLM-L-6-v2 (same Apache-2.0 license).
- License text: https://www.apache.org/licenses/LICENSE-2.0
- Role: cross-encoder reranker for the opt-in RAG reranking stage
(
AddOrkeonOnnxReranker(),Orkeon.Rag.Onnx).
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).