⚡ BlastCode (`blast`)

Know what breaks before your agent edits.

An ultra-fast incremental code-graph engine, Model Context Protocol (MCP) server, and blast-radius analyzer for AI coding agents.

Features • Installation • Agent Integration • CLI Commands • Languages • Roadmap

⚡ Real-World Benchmarks & Live Demos

Operation	Brute Force (Standard Agent)	With BlastCode	Real Savings
Inspect File Structure (`src/tools.rs`)	5,578 tokens (Full file read)	416 tokens (`blast skeleton`)	🟢 92.5% Token Reduction
Edit 1 Function (`format_event`)	5,578 tokens (Full file read)	560 tokens (`blast source`)	🟢 90.0% Token Reduction
Workspace Orientation (14 files)	~35,000 tokens (Reading files)	640 tokens (`blast map`)	🟢 98.2% Token Reduction
Detect Signature Breakage	Fail + 30,000 token debug loop	0 tokens wasted (`blast impact`)	🟢 Eliminates regressions
Query Latency	3.5s – 12.0s (Cloud LLM reading)	< 15ms (Local Tree-sitter SQLite)	⚡ Instant responses

🖥️ Live Preview 1: Surgical Skeleton (Instead of reading whole files)

🖥️ Live Preview 2: The Caretaker Change Digest (Zero-Token Sync)

🖥️ Live Preview 3: Pre-Edit Blast Radius (Know what breaks before editing)

🚀 Installation & Zero-Install Running

Via npm / npx (Universal Zero-Install)

# Run stdio MCP server anywhere immediately:
npx blastcode serve

# Or install globally:
npm install -g blastcode

Via Python / PyPI / uvx

# Run stdio MCP server via uv:
uvx blastcode serve

# Or install via pip:
pip install blastcode

Via Cargo (Rust)

cargo install blastcode

Via Homebrew (macOS / Linux)

brew install isaim0011/tap/blastcode

Via Smithery / PulseMCP Registry

npx -y @smithery/cli install blastcode --client claude

Via VS Code / Cursor Extension

Install BlastCode from Open VSX or the VS Code Marketplace:

code --install-extension isaim0011.blastcode-vscode
# Or in Cursor:
cursor --install-extension isaim0011.blastcode-vscode

🤖 Agent Integration (MCP)

BlastCode works natively with any Model Context Protocol host (Claude Code, Cursor, Windsurf, Cline, Smithery).

Claude Code

claude mcp add blastcode -- npx blastcode serve --root .

Cursor / Windsurf / Claude Desktop (`mcp.json`)

{
  "mcpServers": {
    "blastcode": {
      "command": "npx",
      "args": ["-y", "blastcode", "serve", "--root", "/absolute/path/to/project"]
    }
  }
}

Instruct Your Agent (`AGENTS.md` / `CLAUDE.md`)

Add this instruction block so your AI agent uses BlastCode instead of brute-force reading files:

> Use the `blastcode` MCP tools before reading or modifying files:
> 1. `get_workspace_map`: Orient yourself across the project structure and exports.
> 2. `get_file_context` or `get_file_skeleton`: Use instead of opening and reading full files.
> 3. `get_symbol_source`: Retrieve the exact line range for a single function.
> 4. `trace_symbol`: Find all callers, callees, and type usages before refactoring.
> 5. `get_impact_radius`: Run with `new_source` BEFORE making an edit to verify what breaks.
> 6. `verify_patch`: Pre-flight validate proposed edit syntax and argument counts before writing to disk.
> 7. `get_affected_tests`: Find tests covering the changes and run the generated targeted test command.
> 8. `get_co_changed_files`: Discover implicit paired dependencies from git commit history.
> 9. `find_dead_code`: Detect unreferenced or orphaned symbols.
> 10. `grep_workspace`: Fast multi-threaded regex/token search across workspace files.

🛠️ MCP Tools Overview (14 Intelligent Capabilities)

Tool	Purpose
`get_workspace_map`	Directory tree annotated with exported symbols per file. Call first.
`get_file_context`	Skeleton + classified imports (internal vs external) + dependents + recent edits in one call.
`get_file_skeleton`	Outline of a file without function bodies, with line numbers.
`get_symbol_source`	Surgical extraction of one symbol's exact lines instead of whole-file reads.
`search_symbols`	Fuzzy symbol lookup across the entire workspace (multi-word, camelCase/snake_case).
`trace_symbol`	Definition + callers / callees / type usages tagged with confidence (`exact`, `probable`, `heuristic`).
`get_impact_radius`	Pre-edit: test proposed signature changes. Post-edit: inspect working tree vs `git HEAD`.
`query_graph`	Structural filter by kind, name, path, callers, callees, and export status.
`get_workspace_changes`	View the change journal recorded by the caretaker background watcher.
`get_affected_tests`	🧪 Discovers test files/symbols covering changed files & generates targeted CLI test commands (`cargo test`, `pytest`, `npm test`, `go test`).
`verify_patch`	🛡️ Pre-flight validation of proposed code edits in memory: checks AST syntax and call-site arities before saving to disk.
`get_co_changed_files`	🔗 Mines Git commit history to discover files that frequently change together (implicit dependencies).
`find_dead_code`	🧹 Code graph analysis detecting unreferenced, dead, or orphaned functions and classes across the codebase.
`grep_workspace`	🔍 High-speed multi-threaded regex and token search across workspace files. Respects .gitignore, skips binaries.

💻 CLI Reference

You can also use blast directly from your terminal:

blast index                     # Build or refresh the index (.blastradius/index.db)
blast map                       # Print compact workspace map with exports
blast stats                     # View symbol, reference, and file counts
blast context src/lib.rs        # Inspect skeleton, imports, dependents, and recent edits
blast skeleton src/lib.rs       # View file skeleton
blast source my_function        # Print source lines of a specific function
blast search "authenticate"     # Fuzzy search symbols
blast trace verify_token        # Trace callers, callees, and type usages
blast impact src/auth.py        # Check blast radius of uncommitted changes
blast tests src/tools.rs        # Find affected tests and targeted test command
blast verify src/auth.py        # Pre-flight syntax and arity validation
blast coupled Cargo.toml        # Find frequently co-committed files via Git
blast dead --limit 20           # Detect dead / unreferenced symbols
blast grep "pattern"            # Ultra-fast multi-threaded workspace regex search
blast watch                     # Live terminal stream of AST-level changes

🌐 Supported Languages (10 Languages)

Tier	Languages	Grammar Feature Flag
Core	Python, TypeScript, JavaScript (TSX/JSX), Rust, Go	Included by default
Extended	Java, C#, C, C++, PHP, Ruby	Cargo features (`lang-java`, `lang-csharp`, `lang-c`, `lang-cpp`, `lang-php`, `lang-ruby`)

Swift and Kotlin support are scheduled next.

🗺️ Universal Ecosystem Roadmap

v0.1.0: Core Rust engine, 10 languages, MCP server, CLI (blast).
crates.io: Official publication under blastcode.
PyPI / uv: pip install blastcode / uvx blastcode serve.
npm / npx: npx blastcode serve.
Homebrew Tap: brew install isaim0011/tap/blastcode.
VS Code / Cursor Extension: Embedded companion status and auto-launch.

📄 License

Licensed under the MIT License.

blastcode 0.2.1

⚡ BlastCode (blast)