Add Crystal language support

Author: buger

.github/workflows/lsp-tests.yml

@@ -66,7 +66,7 @@ jobs:
       - name: Setup PHP for phpactor
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.1'
+          php-version: '8.2'
           tools: composer
 
       - name: Install phpactor (PHP language server)

Cargo.toml

@@ -44,6 +44,7 @@ tree-sitter-html = "0.23.2"
 tree-sitter-md = "0.3.2"
 tree-sitter-yaml = "0.6.1"
 tree-sitter-solidity = "=1.2.10"
+tree-sitter-crystal = { git = "https://github.com/crystal-lang-tools/tree-sitter-crystal", rev = "f71f4ca62ac0" }
 ast-grep-core = "0.36.1"
 ast-grep-language = "0.36.1"
 clap = { version = "4.3", features = ["derive"] }

README.md

@@ -143,7 +143,7 @@ npx -y @probelabs/probe@latest agent "Refactor the login function" --allow-edit
 - **Smart Ranking**: BM25, TF-IDF, and hybrid algorithms with optional BERT reranking
 - **Token-Aware**: `--max-tokens` budget, session-based dedup to avoid repeating context
 - **Built-in Agent**: Multi-provider (Anthropic, OpenAI, Google, Bedrock) with retry, fallback, and context compaction
-- **Multi-Language**: Rust, Python, JavaScript, TypeScript, Go, C/C++, Java, Ruby, PHP, Swift, Solidity, C#, and more
+- **Multi-Language**: Rust, Python, JavaScript, TypeScript, Go, C/C++, Java, Ruby, PHP, Swift, Solidity, Crystal, C#, and more
 
 ---
 
@@ -469,6 +469,7 @@ cargo install --path .
 | PHP | `.php` |
 | Swift | `.swift` |
 | Solidity | `.sol` |
+| Crystal | `.cr` |
 | C# | `.cs` |
 | Markdown | `.md` |
 

docs/reference/adding-languages.md

@@ -1,10 +1,13 @@
 # Adding Support for New Languages
 
-This guide lists the exact files you must modify to add a new language to Probe.
+This guide lists the main files you must audit to add a new language to Probe.
 
 ## Required File Modifications
 
-Adding a new language requires modifying exactly **11 files**. Missing any of these will result in incomplete language support.
+Adding a new language requires auditing every language map that affects parsing,
+search, extraction, query, CLI validation, docs, and LSP/indexing behavior.
+The list below covers the core Probe CLI path; LSP daemon support adds
+additional maps under `lsp-daemon/src`.
 
 ### Step 1: Core Language Implementation (4 files)
 ### Step 2: Search & Extract Integration (4 files)