feat: v11.1.2 — Scala Tier 1 extractor + MCP registry setup

- Scala promoted to Tier 1 with dedicated ScalaExtractor: classes, traits,
  objects, case classes, sealed hierarchies, val/var, type aliases, imports,
  inheritance (extends/with), and Scaladoc extraction
- server.json for official MCP Registry submission
- 36 new Scala extraction tests
- Version bump to 11.1.2

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: CosmoHac

CHANGELOG.md

@@ -7,10 +7,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
+## [11.1.2] - 2026-02-27
+
+### Added
+- **Scala promoted to Tier 1** with dedicated `ScalaExtractor` — full support for classes, traits, objects, case classes, sealed hierarchies, val/var properties, type aliases, imports, and inheritance
+- `server.json` for official MCP Registry submission (`registry.modelcontextprotocol.io`)
+- MCP registry submission guide prepared for 9 directories
+
 ### Fixed
 - CI: lazy `import yaml` in `extractor_schema.py` (PyYAML is optional)
 - CI: `TYPE_CHECKING` guard for networkx import in `cmd_visualize.py`
 - CI: skip language corpus tests when yaml/QueryCursor unavailable
+- Registry docstring no longer mentions Scala as Tier 2
 
 ## [11.1.1] - 2026-02-27
 

CONTRIBUTING.md

@@ -82,7 +82,7 @@ Add the following to your project's `.pre-commit-config.yaml`:
 ```yaml
 repos:
   - repo: https://github.com/Cranot/roam-code
-    rev: v11.1.1          # pin to a release tag
+    rev: v11.1.2          # pin to a release tag
     hooks:
       - id: roam-secrets        # secret scanning -- no index required
       - id: roam-syntax-check   # tree-sitter syntax validation -- no index required

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "roam-code"
-version = "11.1.1"
+version = "11.1.2"
 description = "Instant codebase comprehension for AI coding agents"
 readme = "README.md"
 requires-python = ">=3.9"

server.json

@@ -0,0 +1,39 @@
+{
+  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
+  "name": "io.github.cranot/roam-code",
+  "description": "Instant codebase comprehension for AI coding agents. Pre-indexes symbols, call graphs, dependencies, architecture layers, and git history into a local SQLite DB. 101 MCP tools, 10 resources, 5 prompts. 26 languages. 100% local, zero API keys.",
+  "version": "11.1.2",
+  "packages": [
+    {
+      "registry_name": "pypi",
+      "name": "roam-code",
+      "version": "11.1.2",
+      "runtime": "python",
+      "runtime_arguments": [],
+      "environment_variables": [
+        {
+          "name": "ROAM_MCP_PRESET",
+          "description": "Tool preset: core (23 tools, default), full (101 tools), review, refactor, debug, architecture",
+          "required": false,
+          "default": "core"
+        }
+      ]
+    }
+  ],
+  "tools": {
+    "count": 101
+  },
+  "resources": {
+    "count": 10
+  },
+  "prompts": {
+    "count": 5
+  },
+  "remotes": [],
+  "repository": {
+    "url": "https://github.com/Cranot/roam-code",
+    "source": "github"
+  },
+  "websiteUrl": "https://cranot.github.io/roam-code/",
+  "license": "MIT"
+}

src/roam/languages/generic_lang.py

@@ -153,7 +153,7 @@ class GenericExtractor(LanguageExtractor):
 
     Looks for common node types and extracts symbols by finding the
     first identifier child as the name. Does not do import resolution.
-    Used for Ruby, PHP, C#, Kotlin, Swift, Scala, etc.
+    Used for tier-2 languages without dedicated extractors.
     """
 
     def __init__(self, language: str = "unknown"):

src/roam/languages/registry.py

@@ -33,6 +33,7 @@
         "ruby",
         "kotlin",
         "swift",
+        "scala",
     }
 )
 
@@ -203,6 +204,10 @@ def _create_extractor(language: str) -> "LanguageExtractor":
         from .swift_lang import SwiftExtractor
 
         return SwiftExtractor()
+    elif language == "scala":
+        from .scala_lang import ScalaExtractor
+
+        return ScalaExtractor()
     # Salesforce extractors
     elif language == "apex":
         from .apex_lang import ApexExtractor
@@ -250,7 +255,7 @@ def get_extractor(language: str) -> "LanguageExtractor":
     """Get an extractor instance for a language.
 
     Returns a dedicated extractor for tier-1 languages, or a GenericExtractor
-    for tier-2 languages (e.g. Scala).
+    for tier-2 languages.
 
     Args:
         language: Language name string.