Introduce OSMF EULA

Author: kzu

osmfeula.txt

@@ -0,0 +1,63 @@
+End User License Agreement
+
+This Open Source Maintenance Fee Agreement ("Agreement") is a legal 
+agreement between you ("User") and Devlooped ("Project") for the use of
+Devlooped.WhatsApp ("Software"), an open source software project licensed 
+under the MIT License ("OSI License"), an OSI-approved open source license.
+Project offers a Binary Release of the Software to Users in exchange for a
+maintenance fee ("Fee"). "Binary Release" refers to pre-compiled executable
+versions of the Software provided by Project. By accessing or using the
+Binary Release, User agrees to be bound by the terms of this Agreement.
+
+1. Applicability
+
+Project agrees to provide User with the Binary Release in exchange for the
+Fees outlined in Section 2, subject to the terms of this Agreement. The Fee
+applies only to Users that generate revenue by the Software.
+Non-revenue-generating use of the Software is exempt from this Fee. In
+addition, Users who pay separate support and/or maintenance fees to the
+maintainers of the Software are exempt from the Fee outlined in this
+Agreement. This distinction ensures that duplicate fees are not imposed,
+promoting fairness and consistency while respecting alternative support
+arrangements.
+
+2. Monthly Fee and Payment Terms
+
+Revenue-generating Users required to pay the Fee shall follow the payment
+terms set forth by the Project. Failure to comply with these terms may result
+in suspending access to the Binary Release. However, this does not restrict
+the User from obtaining or redistributing binaries from other sources or
+self-compiling them.
+
+3. Nature of the Fee
+
+The Fee is not a license fee. The Software's source code is licensed to User
+under the OSI License and remains freely distributable under the terms of the
+OSI License and any applicable open-source licenses.
+
+4. Conflicts with OSI License
+
+To the extent any term of this Agreement conflicts with User's rights
+under the OSI License regarding the Software, the OSI License shall govern.
+This Agreement applies only to the Binary Release and does not limit User's
+ability to access, modify, or distribute the Software's source code or
+self-compiled binaries. User may independently compile binaries from the
+Software's source code without this Agreement, subject to OSI License terms.
+User may redistribute the Binary Release received under this Agreement,
+provided such redistribution complies with the OSI License (e.g., including
+copyright and permission notices). This Agreement imposes no additional
+restrictions on such rights.
+
+5. Disclaimer of Warranty and Limitation of Liability
+
+THE SOFTWARE AND BINARY RELEASE ARE PROVIDED BY THE PROJECT "AS IS" AND ANY
+EXPRESSED 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 PROJECT OR ITS 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 THE SOFTWARE AND BINARY RELEASE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.

readme.md

@@ -6,9 +6,23 @@
 [![License](https://img.shields.io/github/license/devlooped/Extensions.AI.svg?color=blue)](https://github.com//devlooped/Extensions.AI/blob/main/license.txt)
 [![Build](https://github.com/devlooped/Extensions.AI/actions/workflows/build.yml/badge.svg?branch=main)](https://github.com/devlooped/Extensions.AI/actions/workflows/build.yml)
 
-<!-- #content -->
+<!-- #description -->
 Extensions for Microsoft.Extensions.AI
+<!-- #description -->
+
+## Open Source Maintenance Fee
+
+To ensure the long-term sustainability of this project, use of this project requires an 
+[Open Source Maintenance Fee](https://opensourcemaintenancefee.org). While the source 
+code is freely available under the terms of the [MIT License](./license.txt), all other aspects of the 
+project --including opening or commenting on issues, participating in discussions and 
+downloading releases-- require [adherence to the Maintenance Fee](./osmfeula.txt).
+
+In short, if you use this project to generate revenue, the [Maintenance Fee is required](./osmfeula.txt).
 
+To pay the Maintenance Fee, [become a Sponsor](https://github.com/sponsors/devlooped).
+
+<!-- #content -->
 ## Grok
 
 Full support for Grok [Live Search](https://docs.x.ai/docs/guides/live-search) 
@@ -137,17 +151,21 @@ var messages = new Chat()
     { "user", "What is 101*3?" },
 };
 
-IChatClient chat = new OpenAIChatClient(Env.Get("OPENAI_API_KEY")!, "o3-mini");
+IChatClient chat = new OpenAIChatClient(Env.Get("OPENAI_API_KEY")!, "gpt-5");
 
 var options = new ChatOptions
 {
-    ModelId = "o4-mini",                    // 👈 can override the model on the client
-    ReasoningEffort = ReasoningEffort.High, // 👈 or Medium/Low, extension property
+    ModelId = "gpt-5-mini",                 // 👈 can override the model on the client
+    ReasoningEffort = ReasoningEffort.High, // 👈 or Medium/Low/Minimal, extension property
 };
 
 var response = await chat.GetResponseAsync(messages, options);
 ```
 
+> [!TIP]
+> We provide support for the newest `Minimal` reasoning effort in the just-released
+> GPT-5 model family.
+
 ### Web Search
 
 Similar to the Grok client, we provide the `WebSearchTool` to enable search customization 
@@ -159,7 +177,7 @@ var options = new ChatOptions
     //                          👇 search in Argentina, Bariloche region
     Tools = [new WebSearchTool("AR")
     {
-        Region = "Bariloche",   // 👈 Bariloche region
+        Region = "Bariloche",                        // 👈 Bariloche region
         TimeZone = "America/Argentina/Buenos_Aires", // 👈 IANA timezone
         ContextSize = WebSearchContextSize.High      // 👈 high search context size
     }]
@@ -235,6 +253,7 @@ var options = new ChatOptions
 };
 
 var response = await client.GetResponseAsync(chat, options);
+// 👇 finds the expected result of the tool call
 var result = response.FindCalls<MyResult>(tool).FirstOrDefault();
 
 if (result != null)

src/AI/AI.csproj

@@ -6,6 +6,9 @@
     <PackageId>Devlooped.Extensions.AI</PackageId>
     <Description>Extensions for Microsoft.Extensions.AI</Description>
     <NoWarn>$(NoWarn);OPENAI001</NoWarn>
+    <PackageLicenseExpression></PackageLicenseExpression>
+    <PackageLicenseFile>OSMFEULA.txt</PackageLicenseFile>
+    <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
   </PropertyGroup>
 
   <ItemGroup>
@@ -25,6 +28,7 @@
   <ItemGroup>
     <None Update="Devlooped.Extensions.AI.targets" PackFolder="build" />
     <None Update="Devlooped.Extensions.AI.props" PackFolder="build" />
+    <None Include="..\..\osmfeula.txt" Link="osmfeula.txt" PackagePath="OSMFEULA.txt" />
   </ItemGroup>
 
 </Project>

src/AI/readme.md

@@ -1,4 +1,17 @@
-<!-- #content -->
+<!-- include ../../readme.md#description -->
+## Open Source Maintenance Fee
+
+To ensure the long-term sustainability of this project, use of `Devlooped.Extensions.AI` requires an 
+[Open Source Maintenance Fee](https://opensourcemaintenancefee.org). While the source 
+code is freely available under the terms of the 
+[MIT License](https://github.com/devlooped/Extensions.AI/blob/main/license.txt), 
+this package and other aspects of the project require 
+[adherence to the Maintenance Fee](https://github.com/devlooped/Extensions.AI/blob/main/osmfeula.txt).
+
+In short, if you use this project to generate revenue, the [Maintenance Fee is required](https://github.com/devlooped/Extensions.AI/blob/main/osmfeula.txt).
+
+To pay the Maintenance Fee, [become a Sponsor](https://github.com/sponsors/devlooped).
+
 <!-- include ../../readme.md#content -->
 <!-- include https://github.com/devlooped/sponsors/raw/main/footer.md -->
 <!-- exclude -->