chore(deps): bump kotlin from 2.4.10 to 2.4.20 in /samples/simple-streamable-server (#996)

Bumps `kotlin` from 2.4.10 to 2.4.20.
Updates `org.jetbrains.kotlin.jvm` from 2.4.10 to 2.4.20
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/JetBrains/kotlin/releases">org.jetbrains.kotlin.jvm's
releases</a>.</em></p>
<blockquote>
<h2>Kotlin 2.4.20</h2>
<h2>Changelog</h2>
<h3>Analysis API</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86546"><code>KT-86546</code></a>
Check suspicious when over ConeKotlinType in
ConeTypeCompatibilityChecker</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85418"><code>KT-85418</code></a>
Implement an API for accessing deserialized file annotations in Analysis
API</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-74448"><code>KT-74448</code></a>
K2. False positive MISSING_DEPENDENCY_SUPERCLASS in LinkedListTest.kt,
kotlinx.coroutines</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85856"><code>KT-85856</code></a>
containingSymbol of constructor property differs for local and non-local
classes</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-65417"><code>KT-65417</code></a>
K2 IDE: KTOR false positive expect-actual matching error on enum class
because of implicit clone() in non-JVM source sets</li>
</ul>
<h3>Analysis API. Code Compilation</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-76457"><code>KT-76457</code></a>
K2 IDE / KMP Debugger: KISEWA “Cannot compile a common source without a
JVM counterpart” on evaluating inline fun from common module inside
jvm</li>
</ul>
<h3>Analysis API. FIR</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-70552"><code>KT-70552</code></a>
No expects for actual</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-69727"><code>KT-69727</code></a>
K2 IDE. Wrong error in the editor on calling <code>clone</code> function
of actual enum instance in non-jvm platform</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-69726"><code>KT-69726</code></a>
FP errors on declaring <code>fun clone()</code> in actual enum in
not-jvm source-set</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86014"><code>KT-86014</code></a>
Types are broken after remove parameter through change signature</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86363"><code>KT-86363</code></a>
KotlinIllegalArgumentExceptionWithAttachments: No dangling modifier
found on companion blocks</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86147"><code>KT-86147</code></a>
Drop <code>kotlin.parallel.resolve.under.global.lock</code> registry
key</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85543"><code>KT-85543</code></a>
Avoid lazy resolve for the contracts phase if no constracts might be
resolved</li>
</ul>
<h3>Analysis API. Infrastructure</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-84914"><code>KT-84914</code></a>
Do not publish analysis-api-test-framework</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86986"><code>KT-86986</code></a>
<code>kotlin-compiler-common-for-ide</code> bundles unrelated Analysis
API modules</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86186"><code>KT-86186</code></a>
Analysis API: Codebase tests run twice in some analysis modules — pick a
single JUnit runner and migrate</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85360"><code>KT-85360</code></a>
Drop kotlin-compiler-testdata-for-ide artifact</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85585"><code>KT-85585</code></a>
Simplify the dependencies graph for the Analysis API modules</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85381"><code>KT-85381</code></a>
Remove tests for the FE10 implementation</li>
</ul>
<h3>Analysis API. Light Classes</h3>
<h4>New Features</h4>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-84645"><code>KT-84645</code></a>
Support resolving to companion block members &amp; extensions from Java
(light classes)</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-80775"><code>KT-80775</code></a>
Support PsiClass#getRecordComponents in light classes</li>
</ul>
<h4>Fixes</h4>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-57537"><code>KT-57537</code></a>
SLC: propagate default parameter value from (<code>@JvmOverloads</code>)
<code>expect</code> declarations to <code>actual</code>
declarations</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85040"><code>KT-85040</code></a>
[Analysis API] Improve Java / Kotlin interop in KMP projects</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-87301"><code>KT-87301</code></a>
SymbolLightAccessorMethod#isValid returns false for delegated
properties</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-87171"><code>KT-87171</code></a>
SLC: non-mapped Kotlin collection supertype is dropped from supertype
list</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-87250"><code>KT-87250</code></a>
JvmExposeBoxed: light classes shouldn't be autogenerated for private
declarations</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-70428"><code>KT-70428</code></a>
AA: good code is red when a Java class extends a Kotlin class
implementing MutableList by delegation</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-63568"><code>KT-63568</code></a>
Symbol Light Classes:
KtAnnotationApplicationWithArgumentsInfo.normalizedArguments() may work
incorrectly when psi is not set</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md">org.jetbrains.kotlin.jvm's
changelog</a>.</em></p>
<blockquote>
<h2>2.4.20</h2>
<h3>Analysis API</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86546"><code>KT-86546</code></a>
Check suspicious when over ConeKotlinType in
ConeTypeCompatibilityChecker</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85418"><code>KT-85418</code></a>
Implement an API for accessing deserialized file annotations in Analysis
API</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-74448"><code>KT-74448</code></a>
K2. False positive MISSING_DEPENDENCY_SUPERCLASS in LinkedListTest.kt,
kotlinx.coroutines</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85856"><code>KT-85856</code></a>
containingSymbol of constructor property differs for local and non-local
classes</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-65417"><code>KT-65417</code></a>
K2 IDE: KTOR false positive expect-actual matching error on enum class
because of implicit clone() in non-JVM source sets</li>
</ul>
<h3>Analysis API. Code Compilation</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-76457"><code>KT-76457</code></a>
K2 IDE / KMP Debugger: KISEWA “Cannot compile a common source without a
JVM counterpart” on evaluating inline fun from common module inside
jvm</li>
</ul>
<h3>Analysis API. FIR</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-70552"><code>KT-70552</code></a>
No expects for actual</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-69727"><code>KT-69727</code></a>
K2 IDE. Wrong error in the editor on calling <code>clone</code> function
of actual enum instance in non-jvm platform</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-69726"><code>KT-69726</code></a>
FP errors on declaring <code>fun clone()</code> in actual enum in
not-jvm source-set</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86014"><code>KT-86014</code></a>
Types are broken after remove parameter through change signature</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86363"><code>KT-86363</code></a>
KotlinIllegalArgumentExceptionWithAttachments: No dangling modifier
found on companion blocks</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86147"><code>KT-86147</code></a>
Drop <code>kotlin.parallel.resolve.under.global.lock</code> registry
key</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85543"><code>KT-85543</code></a>
Avoid lazy resolve for the contracts phase if no constracts might be
resolved</li>
</ul>
<h3>Analysis API. Infrastructure</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-84914"><code>KT-84914</code></a>
Do not publish analysis-api-test-framework</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86986"><code>KT-86986</code></a>
<code>kotlin-compiler-common-for-ide</code> bundles unrelated Analysis
API modules</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86186"><code>KT-86186</code></a>
Analysis API: Codebase tests run twice in some analysis modules — pick a
single JUnit runner and migrate</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85360"><code>KT-85360</code></a>
Drop kotlin-compiler-testdata-for-ide artifact</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85585"><code>KT-85585</code></a>
Simplify the dependencies graph for the Analysis API modules</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85381"><code>KT-85381</code></a>
Remove tests for the FE10 implementation</li>
</ul>
<h3>Analysis API. Light Classes</h3>
<h4>New Features</h4>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-84645"><code>KT-84645</code></a>
Support resolving to companion block members &amp; extensions from Java
(light classes)</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-80775"><code>KT-80775</code></a>
Support PsiClass#getRecordComponents in light classes</li>
</ul>
<h4>Fixes</h4>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-57537"><code>KT-57537</code></a>
SLC: propagate default parameter value from (<code>@JvmOverloads</code>)
<code>expect</code> declarations to <code>actual</code>
declarations</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85040"><code>KT-85040</code></a>
[Analysis API] Improve Java / Kotlin interop in KMP projects</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-87301"><code>KT-87301</code></a>
SymbolLightAccessorMethod#isValid returns false for delegated
properties</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-87171"><code>KT-87171</code></a>
SLC: non-mapped Kotlin collection supertype is dropped from supertype
list</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-87250"><code>KT-87250</code></a>
JvmExposeBoxed: light classes shouldn't be autogenerated for private
declarations</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-70428"><code>KT-70428</code></a>
AA: good code is red when a Java class extends a Kotlin class
implementing MutableList by delegation</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-63568"><code>KT-63568</code></a>
Symbol Light Classes:
KtAnnotationApplicationWithArgumentsInfo.normalizedArguments() may work
incorrectly when psi is not set</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-36740"><code>KT-36740</code></a>
MPP: False-positive incompatible types in .java when using expect-class
returned by non-expect member from common when actual is actual
typealias</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="890ac1d94f"><code>890ac1d</code></a>
Add Changelog for 2.4.20-RC3</li>
<li><a
href="8860aed4ae"><code>8860aed</code></a>
🍒 [FIR] Fix suspend conversion when expected type is nullable (<a
href="https://redirect.github.com/JetBrains/kotlin/issues/7769">#7769</a>)</li>
<li><a
href="ab5bcd9428"><code>ab5bcd9</code></a>
Edit ChangeLog for 2.4.20-RC2</li>
<li><a
href="9464edc097"><code>9464edc</code></a>
Add ChangeLog for 2.4.20-RC2</li>
<li><a
href="0261e43b78"><code>0261e43</code></a>
Cherry-pick &quot;Fix <code>asBodyAndResultVar</code> call in
`visitInlinedLambdaInComposable...</li>
<li><a
href="0763513670"><code>0763513</code></a>
[box-tests] Workaround for klib compatibility tests (<a
href="https://redirect.github.com/JetBrains/kotlin/issues/7626">#7626</a>)</li>
<li><a
href="045aec6647"><code>045aec6</code></a>
[Wasm] Append scripts from webpack.config.d in the end of the file (<a
href="https://redirect.github.com/JetBrains/kotlin/issues/7615">#7615</a>)</li>
<li><a
href="cd7173bf0b"><code>cd7173b</code></a>
🍒 [2.4.20] [K/JS] Keep associated obj annotation only if getInstance
survives...</li>
<li><a
href="d36a2ffbcc"><code>d36a2ff</code></a>
CastsOptimizationPass: break aliases cycles (<a
href="https://redirect.github.com/JetBrains/kotlin/issues/7578">#7578</a>)</li>
<li><a
href="8664983b34"><code>8664983</code></a>
[CLI] Restore custom IC search scope creation</li>
<li>Additional commits viewable in <a
href="https://github.com/JetBrains/kotlin/compare/v2.4.10...v2.4.20">compare
view</a></li>
</ul>
</details>
<br />

Updates `org.jetbrains.kotlin.plugin.serialization` from 2.4.10 to
2.4.20
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/JetBrains/kotlin/releases">org.jetbrains.kotlin.plugin.serialization's
releases</a>.</em></p>
<blockquote>
<h2>Kotlin 2.4.20</h2>
<h2>Changelog</h2>
<h3>Analysis API</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86546"><code>KT-86546</code></a>
Check suspicious when over ConeKotlinType in
ConeTypeCompatibilityChecker</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85418"><code>KT-85418</code></a>
Implement an API for accessing deserialized file annotations in Analysis
API</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-74448"><code>KT-74448</code></a>
K2. False positive MISSING_DEPENDENCY_SUPERCLASS in LinkedListTest.kt,
kotlinx.coroutines</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85856"><code>KT-85856</code></a>
containingSymbol of constructor property differs for local and non-local
classes</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-65417"><code>KT-65417</code></a>
K2 IDE: KTOR false positive expect-actual matching error on enum class
because of implicit clone() in non-JVM source sets</li>
</ul>
<h3>Analysis API. Code Compilation</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-76457"><code>KT-76457</code></a>
K2 IDE / KMP Debugger: KISEWA “Cannot compile a common source without a
JVM counterpart” on evaluating inline fun from common module inside
jvm</li>
</ul>
<h3>Analysis API. FIR</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-70552"><code>KT-70552</code></a>
No expects for actual</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-69727"><code>KT-69727</code></a>
K2 IDE. Wrong error in the editor on calling <code>clone</code> function
of actual enum instance in non-jvm platform</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-69726"><code>KT-69726</code></a>
FP errors on declaring <code>fun clone()</code> in actual enum in
not-jvm source-set</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86014"><code>KT-86014</code></a>
Types are broken after remove parameter through change signature</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86363"><code>KT-86363</code></a>
KotlinIllegalArgumentExceptionWithAttachments: No dangling modifier
found on companion blocks</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86147"><code>KT-86147</code></a>
Drop <code>kotlin.parallel.resolve.under.global.lock</code> registry
key</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85543"><code>KT-85543</code></a>
Avoid lazy resolve for the contracts phase if no constracts might be
resolved</li>
</ul>
<h3>Analysis API. Infrastructure</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-84914"><code>KT-84914</code></a>
Do not publish analysis-api-test-framework</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86986"><code>KT-86986</code></a>
<code>kotlin-compiler-common-for-ide</code> bundles unrelated Analysis
API modules</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86186"><code>KT-86186</code></a>
Analysis API: Codebase tests run twice in some analysis modules — pick a
single JUnit runner and migrate</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85360"><code>KT-85360</code></a>
Drop kotlin-compiler-testdata-for-ide artifact</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85585"><code>KT-85585</code></a>
Simplify the dependencies graph for the Analysis API modules</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85381"><code>KT-85381</code></a>
Remove tests for the FE10 implementation</li>
</ul>
<h3>Analysis API. Light Classes</h3>
<h4>New Features</h4>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-84645"><code>KT-84645</code></a>
Support resolving to companion block members &amp; extensions from Java
(light classes)</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-80775"><code>KT-80775</code></a>
Support PsiClass#getRecordComponents in light classes</li>
</ul>
<h4>Fixes</h4>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-57537"><code>KT-57537</code></a>
SLC: propagate default parameter value from (<code>@JvmOverloads</code>)
<code>expect</code> declarations to <code>actual</code>
declarations</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85040"><code>KT-85040</code></a>
[Analysis API] Improve Java / Kotlin interop in KMP projects</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-87301"><code>KT-87301</code></a>
SymbolLightAccessorMethod#isValid returns false for delegated
properties</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-87171"><code>KT-87171</code></a>
SLC: non-mapped Kotlin collection supertype is dropped from supertype
list</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-87250"><code>KT-87250</code></a>
JvmExposeBoxed: light classes shouldn't be autogenerated for private
declarations</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-70428"><code>KT-70428</code></a>
AA: good code is red when a Java class extends a Kotlin class
implementing MutableList by delegation</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-63568"><code>KT-63568</code></a>
Symbol Light Classes:
KtAnnotationApplicationWithArgumentsInfo.normalizedArguments() may work
incorrectly when psi is not set</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md">org.jetbrains.kotlin.plugin.serialization's
changelog</a>.</em></p>
<blockquote>
<h2>2.4.20</h2>
<h3>Analysis API</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86546"><code>KT-86546</code></a>
Check suspicious when over ConeKotlinType in
ConeTypeCompatibilityChecker</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85418"><code>KT-85418</code></a>
Implement an API for accessing deserialized file annotations in Analysis
API</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-74448"><code>KT-74448</code></a>
K2. False positive MISSING_DEPENDENCY_SUPERCLASS in LinkedListTest.kt,
kotlinx.coroutines</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85856"><code>KT-85856</code></a>
containingSymbol of constructor property differs for local and non-local
classes</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-65417"><code>KT-65417</code></a>
K2 IDE: KTOR false positive expect-actual matching error on enum class
because of implicit clone() in non-JVM source sets</li>
</ul>
<h3>Analysis API. Code Compilation</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-76457"><code>KT-76457</code></a>
K2 IDE / KMP Debugger: KISEWA “Cannot compile a common source without a
JVM counterpart” on evaluating inline fun from common module inside
jvm</li>
</ul>
<h3>Analysis API. FIR</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-70552"><code>KT-70552</code></a>
No expects for actual</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-69727"><code>KT-69727</code></a>
K2 IDE. Wrong error in the editor on calling <code>clone</code> function
of actual enum instance in non-jvm platform</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-69726"><code>KT-69726</code></a>
FP errors on declaring <code>fun clone()</code> in actual enum in
not-jvm source-set</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86014"><code>KT-86014</code></a>
Types are broken after remove parameter through change signature</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86363"><code>KT-86363</code></a>
KotlinIllegalArgumentExceptionWithAttachments: No dangling modifier
found on companion blocks</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86147"><code>KT-86147</code></a>
Drop <code>kotlin.parallel.resolve.under.global.lock</code> registry
key</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85543"><code>KT-85543</code></a>
Avoid lazy resolve for the contracts phase if no constracts might be
resolved</li>
</ul>
<h3>Analysis API. Infrastructure</h3>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-84914"><code>KT-84914</code></a>
Do not publish analysis-api-test-framework</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86986"><code>KT-86986</code></a>
<code>kotlin-compiler-common-for-ide</code> bundles unrelated Analysis
API modules</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-86186"><code>KT-86186</code></a>
Analysis API: Codebase tests run twice in some analysis modules — pick a
single JUnit runner and migrate</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85360"><code>KT-85360</code></a>
Drop kotlin-compiler-testdata-for-ide artifact</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85585"><code>KT-85585</code></a>
Simplify the dependencies graph for the Analysis API modules</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85381"><code>KT-85381</code></a>
Remove tests for the FE10 implementation</li>
</ul>
<h3>Analysis API. Light Classes</h3>
<h4>New Features</h4>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-84645"><code>KT-84645</code></a>
Support resolving to companion block members &amp; extensions from Java
(light classes)</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-80775"><code>KT-80775</code></a>
Support PsiClass#getRecordComponents in light classes</li>
</ul>
<h4>Fixes</h4>
<ul>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-57537"><code>KT-57537</code></a>
SLC: propagate default parameter value from (<code>@JvmOverloads</code>)
<code>expect</code> declarations to <code>actual</code>
declarations</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-85040"><code>KT-85040</code></a>
[Analysis API] Improve Java / Kotlin interop in KMP projects</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-87301"><code>KT-87301</code></a>
SymbolLightAccessorMethod#isValid returns false for delegated
properties</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-87171"><code>KT-87171</code></a>
SLC: non-mapped Kotlin collection supertype is dropped from supertype
list</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-87250"><code>KT-87250</code></a>
JvmExposeBoxed: light classes shouldn't be autogenerated for private
declarations</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-70428"><code>KT-70428</code></a>
AA: good code is red when a Java class extends a Kotlin class
implementing MutableList by delegation</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-63568"><code>KT-63568</code></a>
Symbol Light Classes:
KtAnnotationApplicationWithArgumentsInfo.normalizedArguments() may work
incorrectly when psi is not set</li>
<li><a
href="https://youtrack.jetbrains.com/issue/KT-36740"><code>KT-36740</code></a>
MPP: False-positive incompatible types in .java when using expect-class
returned by non-expect member from common when actual is actual
typealias</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="890ac1d94f"><code>890ac1d</code></a>
Add Changelog for 2.4.20-RC3</li>
<li><a
href="8860aed4ae"><code>8860aed</code></a>
🍒 [FIR] Fix suspend conversion when expected type is nullable (<a
href="https://redirect.github.com/JetBrains/kotlin/issues/7769">#7769</a>)</li>
<li><a
href="ab5bcd9428"><code>ab5bcd9</code></a>
Edit ChangeLog for 2.4.20-RC2</li>
<li><a
href="9464edc097"><code>9464edc</code></a>
Add ChangeLog for 2.4.20-RC2</li>
<li><a
href="0261e43b78"><code>0261e43</code></a>
Cherry-pick &quot;Fix <code>asBodyAndResultVar</code> call in
`visitInlinedLambdaInComposable...</li>
<li><a
href="0763513670"><code>0763513</code></a>
[box-tests] Workaround for klib compatibility tests (<a
href="https://redirect.github.com/JetBrains/kotlin/issues/7626">#7626</a>)</li>
<li><a
href="045aec6647"><code>045aec6</code></a>
[Wasm] Append scripts from webpack.config.d in the end of the file (<a
href="https://redirect.github.com/JetBrains/kotlin/issues/7615">#7615</a>)</li>
<li><a
href="cd7173bf0b"><code>cd7173b</code></a>
🍒 [2.4.20] [K/JS] Keep associated obj annotation only if getInstance
survives...</li>
<li><a
href="d36a2ffbcc"><code>d36a2ff</code></a>
CastsOptimizationPass: break aliases cycles (<a
href="https://redirect.github.com/JetBrains/kotlin/issues/7578">#7578</a>)</li>
<li><a
href="8664983b34"><code>8664983</code></a>
[CLI] Restore custom IC search scope creation</li>
<li>Additional commits viewable in <a
href="https://github.com/JetBrains/kotlin/compare/v2.4.10...v2.4.20">compare
view</a></li>
</ul>
</details>
<br />

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.claude/skills/kdoc/SKILL.md

@@ -0,0 +1,81 @@
+---
+name: kdoc
+description: "Add KDoc documentation to Kotlin public API. Use whenever the user asks to document Kotlin code, add KDoc, generate API docs, mentions undocumented public declarations, or wants to improve existing documentation. Also trigger when the user says 'add docs', 'document this class/file/module', 'write KDoc', or asks about missing documentation in Kotlin code."
+---
+
+# KDoc Generator
+
+Add KDoc to all public Kotlin declarations (classes, interfaces, objects, functions, properties, enums, type aliases, annotations — including `@Deprecated`). Read the implementation, not just the signature, to write accurate descriptions.
+
+## Tag placement
+
+| Where the declaration lives | Tag |
+|---|---|
+| Primary-ctor `val` / `var` (public, internal, or protected) | `@property` in class KDoc |
+| Primary-ctor `name: Type` (no `val`/`var`) | `@param` in class KDoc |
+| Primary-ctor `private val` / `private var` | `@param` in class KDoc |
+| Body of class/object/interface/sealed interface | inline `/** */` above the declaration |
+| Function parameter | `@param` |
+| Non-Unit return type | `@return` |
+
+## Style
+
+- Summary: one concise sentence, third-person verb ("Creates", "Returns", "Represents"). Expand to 2-3 sentences only when genuinely complex.
+- **Example block**: mandatory for DSL builders (show full receiver-scope usage); add for complex functions or non-obvious extension functions; skip for one-liners and simple getters.
+- KDoc links (`[ClassName]`, `[methodName]`) only where they add navigational value.
+- Don't write `@throws` or "suspend" notes.
+- Rewrite existing KDoc if incomplete or low quality.
+
+## Examples
+
+**Class with mixed primary-constructor parameters:**
+
+````kotlin
+/**
+ * Manages active client sessions and their lifecycle.
+ *
+ * @property maxSessions upper limit on concurrent sessions
+ * @param scope coroutine scope for session lifecycle tasks
+ * @param secret used internally for session token signing
+ */
+public class SessionManager(
+    public val maxSessions: Int,         // public val  → @property
+    scope: CoroutineScope,                // no val/var → @param
+    private val secret: ByteArray,        // private val → @param
+)
+````
+
+**Body and interface properties (inline `/** */`):**
+
+````kotlin
+/** Represents an entity that includes additional metadata. */
+public interface WithMeta {
+    /** Optional metadata attached to this entity. */
+    public val meta: JsonObject?
+}
+
+public class Connection(public val id: String) {
+    /** Capabilities negotiated during the handshake, or `null` before initialize completes. */
+    public val capabilities: ServerCapabilities? get() = ...
+}
+````
+
+**Function with Example block:**
+
+````kotlin
+/**
+ * Registers a new tool with the given handler.
+ *
+ * Example:
+ * ```kotlin
+ * server.addTool(name = "echo", description = "Echoes input back") { request ->
+ *     CallToolResult(content = listOf(TextContent("Echo: ${request.arguments}")))
+ * }
+ * ```
+ *
+ * @param name unique tool identifier
+ * @param description human-readable tool description
+ * @param handler suspend function invoked when the tool is called
+ * @return the registered tool definition
+ */
+````

.claude/skills/mcp-docs/SKILL.md

@@ -0,0 +1,76 @@
+---
+name: mcp-docs
+description: >
+  Fetch live MCP specification and docs from modelcontextprotocol.io. Training data may be
+  outdated — default to using this skill when the query touches MCP protocol in any way.
+  Trigger for: implementing or debugging MCP features (sampling, elicitation, completion, tools,
+  resources, prompts, transports); SEPs or spec requirements; MCP transport behavior (SSE,
+  Streamable HTTP, reconnection, retry); authorization/OAuth; conformance test failures;
+  capability negotiation; message schemas. Skip only for pure Kotlin, build system, or
+  refactoring tasks with zero MCP protocol dependency. When in doubt, trigger.
+user_invocable: true
+---
+
+# MCP Documentation Skill
+
+Provides access to the official MCP specification and docs from modelcontextprotocol.io. The spec evolves faster than training data — always consult live documentation for protocol specifics like message schemas, required fields, capability negotiation, error handling, and transport requirements.
+
+## When to use
+
+**Proactively** (without being asked):
+- Implementing a feature defined in the MCP spec
+- Reviewing code that implements MCP protocol behavior
+- Fixing conformance test failures
+
+**On demand** (user asks or invokes `/mcp-docs`):
+- Questions about how a specific MCP feature works
+- Clarifying spec ambiguities
+- Looking up SEPs (Specification Enhancement Proposals)
+
+## How to fetch documentation
+
+### Strategy: MCP tool first, llms.txt fallback
+
+**Step 1 — Try the MCP search tool.** If `search_model_context_protocol` is available, use it:
+
+```
+search_model_context_protocol(query: "<your search query>")
+```
+
+One call, semantically ranked results. Fastest path.
+
+**Step 2 — Fallback to llms.txt + WebFetch.** If the MCP tool is not available:
+
+1. Fetch the documentation index:
+   ```
+   WebFetch("https://modelcontextprotocol.io/llms.txt", "Return the full content as-is")
+   ```
+
+2. Identify the relevant page URL(s) from the index. Key sections:
+   - **Specification**: `specification/...` — protocol details, message formats, transports, lifecycle
+   - **SEPs**: `seps/...` — specification enhancement proposals
+   - **Learning**: `docs/learn/...` — architecture, concepts
+   - **Development**: `docs/develop/...` — building clients/servers
+
+3. Fetch the specific page:
+   ```
+   WebFetch("<page-url>", "Return the full content of this documentation page")
+   ```
+
+### Version handling
+
+Always use the latest spec version by default. Only use a specific version or draft when the user explicitly requests it (e.g., "check the 2025-03-26 spec" or "what does the draft say").
+
+### Search guidance
+
+- Protocol message formats, required fields, capability negotiation → **Specification** section
+- Feature motivation, design rationale → relevant **SEP**
+- High-level concepts and architecture → **Learning** resources
+- Use your judgment on query count. A field-level question may need one page; implementing a feature may need 2-3.
+
+## Presenting information
+
+- **Always cite sources.** Include links to spec pages used: `(source: <url>)`
+- **Spec over training data** for specific protocol details (schemas, fields, error codes, capabilities). Training data is fine for general MCP concepts.
+- **Preserve RFC 2119 language.** The spec uses MUST/SHOULD/MAY — keep this distinction when explaining requirements.
+- **Be concise.** Focus on the details relevant to the user's task. Avoid dumping entire spec pages — extract what matters for the specific question or implementation at hand.

.editorconfig

@@ -30,6 +30,7 @@ ktlint_class_signature_rule_force_multiline_when_parameter_count_greater_or_equa
 ktlint_function_signature_rule_force_multiline_when_parameter_count_greater_or_equal_than = 4
 ktlint_standard_chain-method-continuation = disabled
 ktlint_ignore_back_ticked_identifier = true
+ktlint_standard_backing-property-naming = disabled
 ktlint_standard_multiline-expression-wrapping = disabled
 ktlint_standard_when-entry-bracing = disabled
 

.github/dependabot.yml

@@ -1,20 +1,109 @@
-# Configuration options:
-# https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file#about-the-dependabotyml-file
+# yaml-language-server: $schema=https://json.schemastore.org/dependabot-2.0.json
+# Configuration: https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
 
 version: 2
+
 updates:
+  # Root Gradle project (includes buildSrc)
   - package-ecosystem: "gradle"
     directory: "/"
     schedule:
       interval: "weekly"
+      day: "monday"
+    commit-message:
+      prefix: "chore(deps):"
     labels:
       - "dependencies"
       - "kotlin"
+    open-pull-requests-limit: 10
+    groups:
+      ktor:
+        patterns:
+          - "io.ktor:*"
+      kotlinx:
+        patterns:
+          - "org.jetbrains.kotlinx:*"
+      kotlin:
+        patterns:
+          - "org.jetbrains.kotlin:*"
+      kotest:
+        patterns:
+          - "io.kotest:*"
+      testing:
+        patterns:
+          - "io.mockk:*"
+          - "dev.mokksy:*"
+          - "org.awaitility:*"
+          - "org.junit.jupiter:*"
+      infrastructure:
+        patterns:
+          - "io.netty:*"
+          - "io.github.oshai:*"
+          - "org.slf4j:*"
+      gradle-plugins:
+        patterns:
+          - "dev.detekt"
+          - "org.jetbrains.kotlinx.kover"
+          - "org.jlleitschuh.gradle.ktlint"
+          - "org.jetbrains.kotlinx.knit"
+          - "org.jetbrains.kotlinx.binary-compatibility-validator"
+          - "org.openapi.generator"
+          - "org.jetbrains.dokka:*"
+          - "com.vanniktech:*"
 
+  # Samples (independent Gradle builds)
+  - package-ecosystem: "gradle"
+    directories:
+      - "/samples/*"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+    commit-message:
+      prefix: "chore(deps):"
+    labels:
+      - "dependencies"
+      - "kotlin"
+      - "samples"
+    open-pull-requests-limit: 10
+    groups:
+      other-dependencies:
+        patterns:
+          - "*"
+        exclude-patterns:
+          - "io.ktor*"
+          - "org.jetbrains.kotlin*"
+          - "io.modelcontextprotocol*"
+
+  # npm (integration tests)
+  - package-ecosystem: "npm"
+    directory: "/integration-test/src/jvmTest/typescript"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+    commit-message:
+      prefix: "chore(deps):"
+    labels:
+      - "dependencies"
+      - "javascript"
+    open-pull-requests-limit: 10
+    groups:
+      all-dependencies:
+        patterns:
+          - "*"
+
+  # GitHub Actions
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
       interval: "weekly"
+      day: "monday"
+    commit-message:
+      prefix: "chore(deps):"
     labels:
       - "dependencies"
       - "github-actions"
+    open-pull-requests-limit: 10
+    groups:
+      all-actions:
+        patterns:
+          - "*"

.github/workflows/apidocs.yaml

@@ -0,0 +1,50 @@
+name: Publish API Docs
+
+on:
+  release:
+    types:
+      - published
+  # Allow running this workflow manually from the Actions tab
+  workflow_dispatch:
+
+env:
+  JAVA_VERSION: 21
+  JAVA_DISTRIBUTION: temurin
+
+jobs:
+  deploy:
+
+    permissions:
+      pages: write      # to deploy to Pages
+      id-token: write   # to verify the deployment originates from an appropriate source
+
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
+        uses: actions/setup-java@v6
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+          distribution: ${{ env.JAVA_DISTRIBUTION }}
+          cache: gradle
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v6.3.0
+
+      - name: Generate Dokka Site
+        run: |-
+          ./gradlew knit docs:classes docs:knitCheck dokkaGenerate
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v5
+        with:
+          path: build/dokka/html
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v5

.github/workflows/automations.yml

@@ -0,0 +1,103 @@
+name: Automations
+
+on:
+  schedule:
+  # Runs every day at 2:00 AM UTC
+  - cron: '0 2 * * *'
+  workflow_dispatch:
+    inputs:
+      DRY_RUN:
+        type: boolean
+        description: 'Run in dry run mode'
+        default: true
+
+permissions:
+  actions: write
+  # contents: write # only for delete-branch option
+  issues: write
+  pull-requests: write
+
+env:
+  DRY_RUN: true
+  MOVE_TO_STALE_DAYS: 30
+  CLOSE_AFTER_STALE_DAYS: 15
+
+jobs:
+  mark-stale:
+    name: Mark/unmark stale PRs and issues
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/stale@v11
+      with:
+        debug-only: ${{ env.DRY_RUN }}
+        exempt-draft-pr: true
+        exempt-issue-labels: 'awaiting-approval,work-in-progress'
+        stale-issue-label: 'stale'
+        stale-pr-label: 'stale'
+
+        # --- Timing ---
+        # Job 1 marks/unmarks, but never closes.
+        days-before-issue-stale: ${{ env.MOVE_TO_STALE_DAYS }}
+        days-before-issue-close: -1
+        days-before-pr-stale: ${{ env.MOVE_TO_STALE_DAYS }}
+        days-before-pr-close: -1
+
+        remove-stale-when-updated: true
+        remove-pr-stale-when-updated: true
+
+        # --- Messages ---
+        stale-issue-message: >
+          👋 **This issue has been marked as Stale.**
+
+          This issue has had no activity for **${{ env.MOVE_TO_STALE_DAYS }} days**.
+
+          — 🤖 Stale Bot
+        stale-pr-message: >
+          👋 **This PR has been marked as Stale.**
+
+          This PR has had no activity for **${{ env.MOVE_TO_STALE_DAYS }} days**.
+
+          — 🤖 Stale Bot
+
+        operations-per-run: 100
+        ascending: true
+
+  close-stale:
+    name: Close stale PRs and issues
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/stale@v11
+      with:
+        debug-only: ${{ env.DRY_RUN }}
+        only-labels: 'stale'
+        stale-issue-label: 'stale'
+        stale-pr-label: 'stale'
+
+        # --- Timing ---
+        # Job 2 only closes already marked items.
+        days-before-issue-stale: -1
+        days-before-pr-stale: -1
+        days-before-issue-close: ${{ env.CLOSE_AFTER_STALE_DAYS }}
+        days-before-pr-close: ${{ env.CLOSE_AFTER_STALE_DAYS }}
+
+        # --- Messages ---
+        close-issue-message: >
+          👋 **This issue has been automatically closed.**
+
+          This issue was labeled with `stale` and has had no activity
+          for **${{ env.CLOSE_AFTER_STALE_DAYS }} days** since that.
+
+          — 🤖 Stale Bot
+        close-pr-message:  >
+          👋 **This PR has been automatically closed.**
+
+          This PR was labeled with `stale` and has had no activity
+          for **${{ env.CLOSE_AFTER_STALE_DAYS }} days** since that.
+
+          If this is still relevant, please feel free to reopen it
+          or create a new PR.
+
+          — 🤖 Stale Bot
+
+        operations-per-run: 100
+        ascending: true

.github/workflows/build.yml

@@ -10,44 +10,202 @@ on:
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   # Cancel only when the run is NOT on `main` branch
-  cancel-in-progress: ${{ github.ref != 'refs/heads/main'  }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
+permissions:
+  contents: read
+
+env:
+  JAVA_VERSION: 21
+  JAVA_DISTRIBUTION: temurin
+  GRADLE_OPTS: "-Dorg.gradle.daemon=false"
 
 jobs:
-  validate-pr:
-    runs-on: macos-latest-xlarge
-    name: Validate PR
-    steps:
-      - uses: actions/checkout@v5
+  build:
+    runs-on: ${{ matrix.os }}
+    name: Build (${{ matrix.job-name }})
+    timeout-minutes: 30
+    permissions:
+      contents: read
 
-      - name: Set up JDK 21
-        uses: actions/setup-java@v5
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-latest
+            job-name: "Linux Tests"
+            gradle-tasks: "build"
+            max-workers: 3
+
+          - os: macos-latest
+            job-name: "iOS Simulator tests"
+            gradle-tasks: "iosSimulatorArm64Test"
+            max-workers: 2
+
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
+        uses: actions/setup-java@v6
         with:
-          java-version: '21'
-          distribution: 'temurin'
+          java-version: ${{ env.JAVA_VERSION }}
+          distribution: ${{ env.JAVA_DISTRIBUTION }}
+
+      - name: Set up Node.js
+        if: matrix.os == 'ubuntu-latest'
+        uses: actions/setup-node@v7
+        with:
+          node-version: '22' # increase only after https://github.com/nodejs/node/issues/56645 will be fixed
+
+      - name: Set up Node Packages
+        if: matrix.os == 'ubuntu-latest'
+        working-directory: integration-test/src/jvmTest/typescript
+        run: npm ci
 
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v4
+        uses: gradle/actions/setup-gradle@v6.3.0
+        with:
+          validate-wrappers: true
+          add-job-summary: 'always'
+          cache-read-only: ${{ github.ref != 'refs/heads/main' }}
+          gradle-home-cache-includes: |
+            caches
+            notifications
+            ../.konan/**
+
+      - name: ${{ matrix.job-name }}
+        run: |-
+          ./gradlew ${{ matrix.gradle-tasks }} --max-workers ${{ matrix.max-workers }} --continue --rerun-tasks
+
+      - name: Coverage Report
+        if: ${{ success() && matrix.os == 'ubuntu-latest' }}
+        run: ./gradlew koverLog koverHtmlReport koverXmlReport
+
+      - name: Publish to Maven Local
+        if: ${{ success() && matrix.os == 'ubuntu-latest' }}
+        run: ./gradlew publishToMavenLocal -Pversion=1-SNAPSHOT
+
+      - name: Upload Reports
+        if: failure()
+        uses: actions/upload-artifact@v7
+        with:
+          name: reports-build-${{ matrix.os }}
+          path: |
+            **/build/reports/
+
+      - name: Publish Test Report
+        uses: mikepenz/action-junit-report@v6
+        if: always()
+        with:
+          annotate_only: true
+          detailed_summary: true
+          group_suite: true
+          include_empty_in_summary: false
+          report_paths: '**/test-results/**/TEST-*.xml'
+          truncate_stack_traces: false
+
+
+      - name: Archive Maven Local Repository
+        if: ${{ success() && matrix.os == 'ubuntu-latest' }}
+        run: |
+          cd ~/.m2/repository/io/modelcontextprotocol && zip -r $GITHUB_WORKSPACE/local-maven-repository.zip .
+
+      - name: Upload Maven Local Repository
+        if: ${{ success() && matrix.os == 'ubuntu-latest' }}
+        uses: actions/upload-artifact@v7
+        with:
+          name: local-maven-repository
+          path: local-maven-repository.zip
+          retention-days: 1
+
+  knit:
+    runs-on: ubuntu-latest
+    name: Knit
+    timeout-minutes: 10
+    permissions:
+      contents: read
+
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
+        uses: actions/setup-java@v6
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+          distribution: ${{ env.JAVA_DISTRIBUTION }}
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v6.3.0
+        with:
+          validate-wrappers: true
+          add-job-summary: 'always'
+          cache-read-only: ${{ github.ref != 'refs/heads/main' }}
+          gradle-home-cache-includes: |
+            caches
+            notifications
+            sdks
+            ../.konan/**
+
+      - name: Run Knit
+        run: |-
+          ./gradlew knit docs:classes docs:knitCheck --max-workers 3 --continue --rerun-tasks
+
+
+  samples:
+    needs: [ build ]
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    strategy:
+      fail-fast: false
+      matrix:
+        sample:
+          - kotlin-mcp-client
+          - kotlin-mcp-server
+          - simple-streamable-server
+          - weather-stdio-server
+
+    name: "Build Sample: ${{ matrix.sample }}"
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
+        uses: actions/setup-java@v6
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+          distribution: ${{ env.JAVA_DISTRIBUTION }}
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v6.3.0
         with:
           add-job-summary: 'always'
           cache-read-only: true
+          gradle-home-cache-includes: |
+            caches
+            notifications
+            sdks
+            ../.konan/**
 
-      - name: Build with Gradle
-        run: ./gradlew clean ktlintCheck build koverLog koverHtmlReport
-        env:
-          JAVA_OPTS: "-Xmx8g -Dfile.encoding=UTF-8 -Djava.awt.headless=true -Dkotlin.daemon.jvm.options=-Xmx6g"
+      - name: Download Maven Local Repository
+        uses: actions/download-artifact@v8
+        with:
+          name: local-maven-repository
+          path: .
+
+      - name: Extract Maven Local Repository
+        run: |
+          mkdir -p ~/.m2/repository/io/modelcontextprotocol
+          unzip -o local-maven-repository.zip -d ~/.m2/repository/io/modelcontextprotocol
+
+      - name: "Build Sample: ${{ matrix.sample }}"
+        working-directory: ./samples/${{ matrix.sample }}
+        run: ./gradlew build -Pmcp.kotlin.overrideVersion=1-SNAPSHOT --rerun-tasks
 
       - name: Upload Reports
-        if: always()
-        uses: actions/upload-artifact@v4
+        if: ${{ !cancelled() }}
+        uses: actions/upload-artifact@v7
         with:
-          name: junit-results
+          name: reports-samples-snapshot-${{ matrix.sample }}
           path: |
-            **/build/test-results/test/*.xml
-            build/reports
-
-      - name: Disable Auto-Merge on Fail
-        if: failure() && github.event_name == 'pull_request'
-        run: gh pr merge --disable-auto "$PR_URL"
-        env:
-          PR_URL: ${{github.event.pull_request.html_url}}
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+            **/build/reports/

.github/workflows/codeql.yml

@@ -1,69 +1,57 @@
 name: "CodeQL Advanced"
 
 on:
-  push:
-    branches: [ "main" ]
   pull_request:
     branches: [ "main" ]
   schedule:
-    - cron: '0 4 * * 0'
+    - cron: '0 7 * * 1' # Monday 8:00 CET (7:00 UTC)
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+env:
+  JAVA_VERSION: 21
+  JAVA_DISTRIBUTION: temurin
 
 jobs:
   analyze:
-    name: Analyze (${{ matrix.language }})
+    name: Analyze
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     permissions:
-      # required for all workflows
       security-events: write
-
-      # required to fetch internal or private CodeQL packs
-      packages: read
-
-      # only required for workflows in private repositories
-      actions: read
       contents: read
 
-    strategy:
-      matrix:
-        language: [ java-kotlin ]
-
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
-        with:
-          fetch-depth: 0
+        uses: actions/checkout@v7
 
-      - uses: actions/setup-java@v5
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
+        uses: actions/setup-java@v6
         with:
-          distribution: temurin
-          java-version: '21'
+          distribution: ${{ env.JAVA_DISTRIBUTION }}
+          java-version: ${{ env.JAVA_VERSION }}
 
-      # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
+        uses: github/codeql-action/init@v4.38.0
         with:
-          languages: ${{ matrix.language }}
+          languages: java-kotlin
           build-mode: manual
 
-      - uses: actions/cache@v4
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v6.3.0
         with:
-          path: |
-            ~/.gradle/caches
-            ~/.gradle/wrapper
-          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          validate-wrappers: true
+          cache-read-only: true
 
       - name: Build Kotlin sources
         run: |
-            ./gradlew \
-            :kotlin-sdk-core:compileKotlinJvm \
-            :kotlin-sdk-client:compileKotlinJvm \
-            :kotlin-sdk-server:compileKotlinJvm \
-            :kotlin-sdk:compileKotlinJvm \
-            :kotlin-sdk-test:compileKotlinJvm \
+          ./gradlew compileKotlinJvm :conformance-test:compileKotlin \
             -Pkotlin.incremental=false \
-            --no-daemon --stacktrace --rerun-tasks
+            --no-daemon --rerun-tasks --stacktrace
 
       - name: Analyze
-        uses: github/codeql-action/analyze@v3
+        uses: github/codeql-action/analyze@v4.38.0
         with:
-          category: '/language:${{ matrix.language }}'
+          category: '/language:java-kotlin'

.github/workflows/conformance.yml

@@ -0,0 +1,172 @@
+name: Conformance Tests
+
+on:
+  workflow_dispatch:
+  pull_request:
+    branches: [ main ]
+  push:
+    branches: [ main ]
+
+env:
+  JAVA_VERSION: '21'
+  JAVA_DISTRIBUTION: temurin
+  NODE_VERSION: '22'
+
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  # Cancel only when the run is NOT on `main` branch
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main'  }}
+
+jobs:
+  server:
+    runs-on: ubuntu-latest
+    name: Conformance Server Tests
+    timeout-minutes: 20
+
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Set up JDK
+        uses: actions/setup-java@v6
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+          distribution: ${{ env.JAVA_DISTRIBUTION }}
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v6.3.0
+        with:
+          cache-read-only: ${{ github.ref != 'refs/heads/main' }}
+
+      - name: Build
+        run: ./gradlew :conformance-test:installDist
+
+      - name: Start server
+        run: |
+          MCP_PORT=3001 conformance-test/build/install/conformance-test/bin/conformance-test &
+          for i in $(seq 1 30); do
+            if curl -s -o /dev/null http://localhost:3001/mcp; then
+              echo "Server is ready"
+              break
+            fi
+            sleep 1
+          done
+
+      - name: Run conformance tests
+        uses: modelcontextprotocol/conformance@v0.1.16
+        with:
+          mode: server
+          url: http://localhost:3001/mcp
+          suite: active
+          node-version: ${{ env.NODE_VERSION }}
+          expected-failures: ./conformance-test/conformance-baseline.yml
+
+  client:
+    runs-on: ubuntu-latest
+    name: "Conformance Client Tests: ${{ matrix.scenario }}"
+    timeout-minutes: 20
+
+    strategy:
+      fail-fast: false
+      matrix:
+        scenario:
+          - initialize
+          - tools_call
+          - elicitation-sep1034-client-defaults
+          - sse-retry
+
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Set up JDK
+        uses: actions/setup-java@v6
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+          distribution: ${{ env.JAVA_DISTRIBUTION }}
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v6.3.0
+        with:
+          cache-read-only: ${{ github.ref != 'refs/heads/main' }}
+
+      - name: Build
+        run: ./gradlew :conformance-test:installDist
+
+      - name: Run conformance tests
+        uses: modelcontextprotocol/conformance@v0.1.16
+        with:
+          mode: client
+          command: conformance-test/build/install/conformance-test/bin/conformance-client
+          scenario: ${{ matrix.scenario }}
+          node-version: ${{ env.NODE_VERSION }}
+          expected-failures: ./conformance-test/conformance-baseline.yml
+
+  auth:
+    runs-on: ubuntu-latest
+    name: Conformance Auth Tests
+    timeout-minutes: 20
+
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Set up JDK
+        uses: actions/setup-java@v6
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+          distribution: ${{ env.JAVA_DISTRIBUTION }}
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v6.3.0
+        with:
+          cache-read-only: ${{ github.ref != 'refs/heads/main' }}
+
+      - name: Build
+        run: ./gradlew :conformance-test:installDist
+
+      - name: Run conformance tests
+        uses: modelcontextprotocol/conformance@v0.1.16
+        with:
+          mode: client
+          command: conformance-test/build/install/conformance-test/bin/conformance-client
+          suite: auth
+          node-version: ${{ env.NODE_VERSION }}
+          expected-failures: ./conformance-test/conformance-baseline.yml
+
+  auth-scenarios:
+    runs-on: ubuntu-latest
+    name: "Conformance Auth Scenario: ${{ matrix.scenario }}"
+    timeout-minutes: 20
+
+    strategy:
+      fail-fast: false
+      matrix:
+        scenario:
+          - auth/client-credentials-jwt
+          - auth/client-credentials-basic
+          - auth/cross-app-access-complete-flow
+
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Set up JDK
+        uses: actions/setup-java@v6
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+          distribution: ${{ env.JAVA_DISTRIBUTION }}
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v6.3.0
+        with:
+          cache-read-only: ${{ github.ref != 'refs/heads/main' }}
+
+      - name: Build
+        run: ./gradlew :conformance-test:installDist
+
+      - name: Run conformance tests
+        uses: modelcontextprotocol/conformance@v0.1.16
+        with:
+          mode: client
+          command: conformance-test/build/install/conformance-test/bin/conformance-client
+          scenario: ${{ matrix.scenario }}
+          node-version: ${{ env.NODE_VERSION }}
+          expected-failures: ./conformance-test/conformance-baseline.yml

.github/workflows/dependabot-auto-merge.yml

@@ -0,0 +1,23 @@
+name: Auto-merge Dependabot
+
+on: pull_request
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  auto-merge:
+    if: github.actor == 'dependabot[bot]'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: dependabot/fetch-metadata@v3
+        id: metadata
+
+      - if: >-
+          steps.metadata.outputs.package-ecosystem == 'github_actions' ||
+          steps.metadata.outputs.package-ecosystem == 'npm_and_yarn'
+        run: gh pr merge --auto --squash "$PR_URL"
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/gradle-publish.yml

@@ -1,133 +1,47 @@
-# This workflow uses actions that are not certified by GitHub.
-# They are provided by a third-party and are governed by
-# separate terms of service, privacy policy, and support
-# documentation.
-# This workflow will build a package using Gradle and then publish it to GitHub packages when a release is created
-# For more information see: https://github.com/actions/setup-java/blob/main/docs/advanced-usage.md#Publishing-using-gradle
-
 name: Release
 
 on:
   release:
-    types: [ created ]
+    types: [ published ]
+  workflow_dispatch:
 
 jobs:
   build:
     runs-on: macos-latest
     environment: release
+    env:
+      GRADLE_OPTS: "-Dorg.gradle.daemon=false"
 
     permissions:
       contents: write
       packages: write
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - name: Set up JDK 21
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@v6
         with:
           java-version: '21'
           distribution: 'temurin'
 
+      - name: Set up Node.js
+        uses: actions/setup-node@v7
+        with:
+          node-version: '22' # increase only after https://github.com/nodejs/node/issues/56645 will be fixed
+
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v4
+        uses: gradle/actions/setup-gradle@v6.3.0
 
-      - name: Verify publication configuration
-        run: ./gradlew jreleaserConfig
-        env:
-          JRELEASER_MAVENCENTRAL_USERNAME: ${{ secrets.OSSRH_USERNAME }}
-          JRELEASER_MAVENCENTRAL_PASSWORD: ${{ secrets.OSSRH_TOKEN }}
-          JRELEASER_GPG_PUBLIC_KEY: ${{ secrets.GPG_PUBLIC_KEY }}
-          JRELEASER_GPG_SECRET_KEY: ${{ secrets.GPG_SECRET_KEY }}
-          JRELEASER_GPG_PASSPHRASE: ${{ secrets.SIGNING_PASSPHRASE }}
-          JRELEASER_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Clean Build with Gradle
-        run: ./gradlew clean build
-        env:
-          JRELEASER_MAVENCENTRAL_USERNAME: ${{ secrets.OSSRH_USERNAME }}
-          JRELEASER_MAVENCENTRAL_PASSWORD: ${{ secrets.OSSRH_TOKEN }}
-          JRELEASER_GPG_PUBLIC_KEY: ${{ secrets.GPG_PUBLIC_KEY }}
-          JRELEASER_GPG_SECRET_KEY: ${{ secrets.GPG_SECRET_KEY }}
-          JRELEASER_GPG_PASSPHRASE: ${{ secrets.SIGNING_PASSPHRASE }}
-          GPG_SECRET_KEY: ${{ secrets.GPG_SECRET_KEY }}
-          SIGNING_PASSPHRASE: ${{ secrets.SIGNING_PASSPHRASE }}
+      - name: Check
+        run: ./gradlew check --no-configuration-cache
 
       - name: Publish to Maven Central Portal
         id: publish
-        run: ./gradlew publish jreleaserFullRelease --info --stacktrace -Djreleaser.verbose=true
+        run: ./gradlew publishToMavenCentral --no-configuration-cache
         env:
-          JRELEASER_MAVENCENTRAL_USERNAME: ${{ secrets.OSSRH_USERNAME }}
-          JRELEASER_MAVENCENTRAL_PASSWORD: ${{ secrets.OSSRH_TOKEN }}
-          JRELEASER_GPG_PUBLIC_KEY: ${{ secrets.GPG_PUBLIC_KEY }}
-          JRELEASER_GPG_SECRET_KEY: ${{ secrets.GPG_SECRET_KEY }}
-          JRELEASER_GPG_PASSPHRASE: ${{ secrets.SIGNING_PASSPHRASE }}
-          JRELEASER_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ORG_GRADLE_PROJECT_mavenCentralUsername: ${{ secrets.OSSRH_USERNAME }}
+          ORG_GRADLE_PROJECT_mavenCentralPassword: ${{ secrets.OSSRH_TOKEN }}
+          ORG_GRADLE_PROJECT_signingInMemoryKey: ${{ secrets.GPG_SECRET_KEY }}
+          ORG_GRADLE_PROJECT_signingInMemoryKeyPassword: ${{ secrets.SIGNING_PASSPHRASE }}
           GPG_SECRET_KEY: ${{ secrets.GPG_SECRET_KEY }}
           SIGNING_PASSPHRASE: ${{ secrets.SIGNING_PASSPHRASE }}
-
-      - name: Query Central Portal for validation errors
-        if: failure()
-        shell: bash
-        env:
-          OSSRH_USERNAME: ${{ secrets.OSSRH_USERNAME }}
-          OSSRH_TOKEN: ${{ secrets.OSSRH_TOKEN }}
-        run: |
-          set -euo pipefail
-          
-          OUTPUT_PROPS="build/jreleaser/output.properties"
-          
-          if [[ ! -f "$OUTPUT_PROPS" ]]; then
-            echo "::error title=File Missing::The file '$OUTPUT_PROPS' does not exist."
-            exit 1
-          fi
-          
-          DEPLOY_ID=$(grep '^deploymentId=' "$OUTPUT_PROPS" | cut -d= -f2 || true)
-          if [[ -z "$DEPLOY_ID" ]]; then
-            echo "::error title=Missing Deployment ID::The 'deploymentId' key was not found in '$OUTPUT_PROPS'."
-            exit 1
-          fi
-          
-          echo "Portal deploymentId: $DEPLOY_ID"
-          
-          if [ -z "$OSSRH_USERNAME" ]; then
-            echo "::error title='OSSRH_USERNAME' is not set."
-            exit 1
-          fi
-  
-          if [ -z "$OSSRH_TOKEN" ]; then
-            echo "::error title='OSSRH_TOKEN' is not set."
-            exit 1
-          fi
-          
-          AUTH=$(printf "%s:%s" "$OSSRH_USERNAME" "$OSSRH_TOKEN" | base64)
-          echo "::add-mask::$AUTH"
-          
-          STATUS_JSON=$(curl -sS \
-            -H "Authorization: Bearer $AUTH" \
-            -H "Content-Type: application/json" \
-            -X POST \
-            "https://central.sonatype.com/api/v1/publisher/status?id=$DEPLOY_ID")
-          
-          echo "$STATUS_JSON" | jq .
-          
-          echo "$STATUS_JSON" | jq -r '.errors[]?.message' |
-            while read -r MSG; do
-              echo "::error title=Sonatype validation::$MSG"
-            done
-          
-          {
-            echo "### Sonatype Central Portal validation result"
-            echo
-            echo '```json'
-            echo "$STATUS_JSON"
-            echo '```'
-          } >> "$GITHUB_STEP_SUMMARY"
-
-      - name: Upload JReleaser artefacts
-        if: always()
-        uses: actions/upload-artifact@v4
-        with:
-          name: jreleaser-logs
-          path: |
-            build/jreleaser/trace.log
-            build/jreleaser/output.properties

.github/workflows/samples.yml

@@ -0,0 +1,64 @@
+name: Build Samples
+
+on:
+  workflow_dispatch:
+  pull_request:
+    branches: [ main ]
+    paths:
+      - 'samples/**'
+  push:
+    branches: [ main ]
+    paths:
+      - 'samples/**'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  # Cancel only when the run is NOT on `main` branch
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
+env:
+  JAVA_VERSION: 21
+  JAVA_DISTRIBUTION: temurin
+  GRADLE_OPTS: "-Dorg.gradle.daemon=false"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        sample:
+          - kotlin-mcp-client
+          - kotlin-mcp-server
+          - simple-streamable-server
+          - weather-stdio-server
+
+    name: Build Sample (${{ matrix.sample }})
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
+        uses: actions/setup-java@v6
+        with:
+          java-version: ${{ env.JAVA_VERSION }}
+          distribution: ${{ env.JAVA_DISTRIBUTION }}
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v6.3.0
+        with:
+          validate-wrappers: true
+          add-job-summary: 'always'
+          cache-read-only: ${{ github.ref != 'refs/heads/main' }}
+
+      - name: "Build Sample: ${{ matrix.sample }}"
+        working-directory: ./samples/${{ matrix.sample }}
+        run: ./gradlew build
+
+      - name: Upload Reports
+        if: failure()
+        uses: actions/upload-artifact@v7
+        with:
+          name: reports-samples-${{ matrix.sample }}
+          path: |
+            **/build/reports/

.gitignore

@@ -17,9 +17,13 @@ build/
 out/
 !**/src/main/**/out/
 !**/src/test/**/out/
+!.idea/icon.png
+!.idea/detekt.xml
+!.idea/externalDependencies.xml
 
 ### Kotlin ###
 .kotlin
+kotlin-js-store
 yarn.lock
 
 ### Eclipse ###
@@ -54,3 +58,6 @@ dist
 ### SWE agents ###
 .claude/
 .junie/
+
+### Conformance test results ###
+conformance-test/results/

AGENTS.md

@@ -0,0 +1,82 @@
+# AGENTS: Development Guidelines for AI Contributors
+
+This file provides guidance to AI coding agents working with code in this repository.
+
+## Project
+
+Kotlin Multiplatform SDK for the [Model Context Protocol (MCP)](https://modelcontextprotocol.io). Targets JVM, Native (macOS/Linux/Windows), JS, and Wasm. Implements both MCP clients and servers with pluggable transports.
+
+## Build Commands
+
+```bash
+./gradlew ktlintCheck                # Lint check
+./gradlew detekt                     # Static analysis
+./gradlew ktlintFormat               # Auto-fix lint issues
+./gradlew apiCheck                   # Check public API compatibility (run before committing)
+./gradlew apiDump                    # Update API dump after intentional API changes
+./gradlew koverLog                   # Print coverage summary
+./gradlew koverXmlReport            # Generate XML coverage report
+```
+
+Run a single test class:
+```bash
+./gradlew :kotlin-sdk-server:jvmTest --tests "io.modelcontextprotocol.kotlin.sdk.server.StdioServerTransportTest"
+```
+
+Run a single test method:
+```bash
+./gradlew :kotlin-sdk-core:jvmTest --tests "*.ProtocolTest.should preserve existing meta when adding progress token"
+```
+
+Conformance tests (requires Node.js + npx):
+```bash
+./conformance-test/run-conformance.sh all           # All suites sequentially
+./conformance-test/run-conformance.sh server         # Server suite only
+./conformance-test/run-conformance.sh client         # Client core suite (initialize, tools_call, elicitation, sse-retry)
+./conformance-test/run-conformance.sh client-auth    # Client auth suite (20 OAuth scenarios)
+```
+
+## Module Structure
+
+```
+kotlin-sdk-core      Core: protocol types, JSON-RPC, Transport abstraction, Protocol base class
+kotlin-sdk-client    Client: MCP client implementation (tools, prompts, resources, sampling)
+kotlin-sdk-server    Server: MCP server implementation (feature registries, sessions)
+kotlin-sdk-testing   ChannelTransport for in-memory client-server testing
+kotlin-sdk           Umbrella module aggregating client + server
+test-utils           Shared test helpers (mockk, kotest, awaitility)
+conformance-test     MCP specification compliance tests (external runner)
+integration-test     End-to-end tests
+samples/             Runnable examples (servers and clients)
+```
+
+## Architecture
+
+Layered design:
+
+```
+Application (tools, prompts, resources)
+  → Client / Server  (typed MCP operations, capability enforcement)
+    → Protocol        (JSON-RPC framing, request correlation, timeouts)
+      → Transport     (pluggable I/O: stdio, SSE, Streamable HTTP, WebSocket)
+```
+
+## Code Conventions
+
+- **Explicit API mode (Strict)**: all public declarations must have explicit visibility modifiers and return types
+- **DSL builders**: prefer DSL builder style (lambda blocks) over direct constructors
+- **Multi-dollar interpolation**: use `$$"""..."""` for strings containing literal `$` (e.g., JSON with `$ref`, `$defs`)
+- **`McpJson` has `explicitNulls = false`**: null properties must be absent from JSON, not `"field": null`
+- **Logging**: use `io.github.oshai.kotlinlogging.KotlinLogging`
+- **Structured concurrency**: every coroutine must have a bounded scope and lifetime; always re-throw `CancellationException`; never hold `Mutex` across suspension points
+
+## Testing
+
+- **JVM first**: run `jvmTest` instead of `test` — full multiplatform test runs are slow and rarely needed during development
+- **Test naming**: use backtick syntax — `fun \`should return 200 OK\`()`
+- **Frameworks**: JUnit 5 (runner) + Kotest (assertions) + MockK (mocking) + Awaitility (async waits)
+- **In-memory testing**: `ChannelTransport.createLinkedPair()` connects client and server without network
+
+## Skills
+
+- `/mcp-docs` — fetches live MCP specification and docs; use when implementing or debugging MCP protocol features

CLAUDE.md

@@ -0,0 +1 @@
+AGENTS.md

LICENSE

@@ -1,6 +1,193 @@
+The MCP project is undergoing a licensing transition from the MIT License to the Apache License, Version 2.0 ("Apache-2.0"). All new code and specification contributions to the project are licensed under Apache-2.0. Documentation contributions (excluding specifications) are licensed under CC-BY-4.0.
+
+Contributions for which relicensing consent has been obtained are licensed under Apache-2.0. Contributions made by authors who originally licensed their work under the MIT License and who have not yet granted explicit permission to relicense remain licensed under the MIT License.
+
+No rights beyond those granted by the applicable original license are conveyed for such contributions.
+
+---
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
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+
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+      "Contribution" shall mean any work of authorship, including
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+
+   4. Redistribution. You may reproduce and distribute copies of the
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+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
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+
+      (d) If the Work includes a "NOTICE" text file as part of its
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+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
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+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+---
+
 MIT License
 
-Copyright (c) 2024 Anthropic, PBC
+Copyright (c) 2024-2026 Model Context Protocol a Series of LF Projects, LLC.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -18,4 +205,12 @@ 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.
+SOFTWARE.
+
+---
+
+Creative Commons Attribution 4.0 International (CC-BY-4.0)
+
+Documentation in this project (excluding specifications) is licensed under
+CC-BY-4.0. See https://creativecommons.org/licenses/by/4.0/legalcode for
+the full license text.

SECURITY.md

@@ -0,0 +1,21 @@
+# Security Policy
+
+Thank you for helping keep the Model Context Protocol and its ecosystem secure.
+
+## Reporting Security Issues
+
+If you discover a security vulnerability in this repository, please report it through
+the [GitHub Security Advisory process](https://docs.github.com/en/code-security/security-advisories/guidance-on-reporting-and-writing-information-about-vulnerabilities/privately-reporting-a-security-vulnerability)
+for this repository.
+
+Please **do not** report security vulnerabilities through public GitHub issues, discussions,
+or pull requests.
+
+## What to Include
+
+To help us triage and respond quickly, please include:
+
+- A description of the vulnerability
+- Steps to reproduce the issue
+- The potential impact
+- Any suggested fixes (optional)

build.gradle.kts

@@ -1,18 +1,20 @@
 plugins {
+    id("mcp.dokka")
     alias(libs.plugins.ktlint)
     alias(libs.plugins.kover)
 }
 
-allprojects {
-    group = "io.modelcontextprotocol"
-    version = "0.7.0"
-}
-
 dependencies {
+    dokka(project(":kotlin-sdk-core"))
+    dokka(project(":kotlin-sdk-client"))
+    dokka(project(":kotlin-sdk-server"))
+    dokka(project(":kotlin-sdk-testing"))
+
     kover(project(":kotlin-sdk-core"))
     kover(project(":kotlin-sdk-client"))
     kover(project(":kotlin-sdk-server"))
-    kover(project(":kotlin-sdk-test"))
+    kover(project(":kotlin-sdk-testing"))
+    kover(project(":integration-test"))
 }
 
 subprojects {
@@ -20,17 +22,36 @@ subprojects {
     apply(plugin = "org.jetbrains.kotlinx.kover")
 }
 
+dokka {
+    moduleName = "MCP Kotlin SDK"
+
+    dokkaPublications.html {
+        includes.from("docs/moduledoc.md")
+    }
+}
+
+ktlint {
+    filter {
+        exclude("**/generated*/**")
+    }
+}
+
 kover {
     reports {
         filters {
             includes.classes("io.modelcontextprotocol.kotlin.sdk.*")
+            excludes {
+                annotatedBy("kotlin.Deprecated")
+                classes("io.modelcontextprotocol.kotlin.sdk.models.*") // temporary
+                classes("io.modelcontextprotocol.kotlin.sdk.models.infrastructure.*") // generated
+            }
         }
         total {
             log {
             }
             verify {
                 rule {
-                    minBound(65)
+                    minBound(73)
                 }
             }
         }

buildSrc/build.gradle.kts

@@ -8,9 +8,10 @@ repositories {
 }
 
 dependencies {
+    implementation(libs.detekt.gradle)
     implementation(libs.kotlin.gradle)
     implementation(libs.kotlin.serialization)
     implementation(libs.kotlinx.atomicfu.gradle)
     implementation(libs.dokka.gradle)
-    implementation(libs.jreleaser.gradle)
-}
+    implementation(libs.maven.publish)
+}