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ScalaSemantic
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ScalaSemantic

Active·★ 21·MIT·Updated 2026-10-19

ScalaSemantic is an MCP server that provides AI coding agents with compiler-resolved Scala facts like symbols, types, and usages via SemanticDB. It allows agents to query precise compiler knowledge rather than relying on less accurate source text grepping, significantly reducing token usage.

#Scala#SemanticDB#AI Code Assistant#Compiler APIs#Code Analysis#Dev Tooling#Language Server
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Guides
$ Install
$ sbt mcpClientConfig && sbt compile
↗ Visit site★ GitHub
01

Features

01Resolve names to SemanticDB symbols
02Find exact references and usages of a symbol
03Analyze class hierarchy (parents and known subtypes)
04Get full method signatures with type/implicit parameters
05Resolve implicit definitions for a given type
02

Compatibility

Scala
Language
Verified via docs
sbt
Build Tool
Verified via docs
Mill
Build Tool
Verified via docs
Gradle
Build Tool
Verified via docs
MCP-compatible agents
Integrations
Verified via docs
03

Quick start

1
$ sbt mcpClientConfig
2
$ sbt compile
04

Use cases

↳Enhancing AI agents with compiler-level insights for accurate answers to code questions.
↳AI code generation and completion requiring deep Scala code understanding.
↳Automated code refactoring based on precise symbol and type information.
↳Debugging and tracing implicit dependencies in Scala projects.
↳Identifying exact callers of methods or all subtypes of a trait for automated analysis.
05

Alternatives

⚡Top VS:
VSCALM★17→VScodanna★756→VSkivgraph★23→VS

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MercurieVV /
ScalaSemantic
↗

MCP server for deep semantic analysis of Scala via SemanticDB — exact find-usages, class hierarchies, implicit resolution & call paths for AI coding agents like Claude Code. Beyond grep and standard LSP.

21MIT
Last commit4d ago
StatusActive
CategoryCode Assistant
Links
Documentation↗Discussion↗Issues↗Releases↗
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