Bump io.modelcontextprotocol:kotlin-sdk from 0.11.1 to 0.12.0 in the app-dependencies group

[dependabot]

Bumps the app-dependencies group with 1 update: io.modelcontextprotocol:kotlin-sdk.

Updates io.modelcontextprotocol:kotlin-sdk from 0.11.1 to 0.12.0

Release notes

Sourced from io.modelcontextprotocol:kotlin-sdk's releases.

0.12.0

Description

Adds sampling-with-tools per SEP-1577, JSON Schema dialect declaration on tool schemas, server-side tool name validation, and capability extensions; fixes SSE reconnect on the same session and stops swallowing CancellationException.

Breaking Changes

Sampling messages can carry tool calls and results (SEP-1577) by @​devcrocod in #718

SamplingMessage.content is now typed as a new SamplingMessageContent supertype, with MediaContent (text/image/audio), ToolUseContent, and ToolResultContent as variants. MediaContent still exists and now extends SamplingMessageContent, so most source code that constructs sampling messages compiles unchanged — but the binary signatures of SamplingMessage, CreateMessageResult, and related types have changed. ClientCapabilities.sampling is also now a typed Sampling object instead of a raw JsonObject. Recompilation is required; consumers reading sampling as JsonObject must migrate to the typed accessors.

watchosX64 and tvosX64 Kotlin/Native targets removed by @​devcrocod in #727

These targets have been deprecated upstream. Migrate to the corresponding ARM/simulator targets (watchosArm64, watchosSimulatorArm64, tvosArm64, tvosSimulatorArm64).

Features

• Add $schema field to ToolSchema, declaring JSON Schema 2020-12 as the default dialect (SEP-1613) by @​devcrocod in #696
• Validate tool names at registration time on the server, following the MCP tool naming standard (SEP-986) by @​devcrocod in #695
• Add extensions field to ClientCapabilities and ServerCapabilities for advertising supported MCP extensions during the initialize handshake by @​eritscher in #678

Fixed

• Validate the mcp-protocol-version HTTP header on initialization requests and correct DEFAULT_NEGOTIATED_PROTOCOL_VERSION to match the spec by @​devcrocod in #697
• Propagate CancellationException instead of logging it as an error by @​devcrocod in #706
• Evict stale GET SSE stream mapping on reconnect so a new GET on the same session is no longer silently rejected by the leftover entry from the previous stream by @​amr in #716

Maintenance

• Add kotlinlang MCP server sample with search and get_page tools by @​devcrocod in #713
• Migrate detekt to a buildSrc convention plugin with a fully explicit, version-locked YAML config by @​devcrocod in #729
• Add Streamable HTTP integration tests for pagination, bad-request handling, and logging by @​jskjw157 in #613
• Remove unused OpenAPI Generator plugin and configuration by @​devcrocod in #683
• Remove Codecov configuration in favor of kover by @​devcrocod in #691
• Remove redundant JUnit XML report configuration by @​devcrocod in #728
• Remove IDEA files tied to the incompatible detekt IDE plugin by @​devcrocod in #714
• Add Node.js setup to the release workflow so TypeScript integration tests run on macOS runners by @​devcrocod in #684

Dependencies

• Kotlin to v2.3.21 in #704, #723
• kotlinx.serialization-json to v1.11.0 in #687

New Contributors

• @​eritscher made their first contribution in #678
• @​amr made their first contribution in #716

Full Changelog: modelcontextprotocol/kotlin-sdk@0.11.1...0.12.0

Commits

• c339d8c release: bump version to 0.12.0 (#731)
• 64804a0 refactor: explicit locked detekt config (#729)
• a238fc0 fix(server): evict stale GET SSE stream mapping on reconnect (#716)
• 66d9efb test(streamable-http): add missing integration tests for pagination, bad requ...
• f434fca feat!: SEP-1577 sampling with tools (#718)
• 7474a33 chore: drop deprecated watchosX64 and tvosX64 targets (#727)
• 12ace76 chore: remove redundant JUnit XML report configuration (#728)
• ec606db chore(deps): bump kotlin from 2.2.21 to 2.3.21 in /samples/weather-stdio-serv...
• 1d93042 chore(deps): bump kotlin from 2.2.21 to 2.3.21 in /samples/kotlin-mcp-server ...
• 9817b17 chore(deps): bump org.jetbrains.kotlin.jvm from 2.2.21 to 2.3.21 in /samples/...
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