context-link v1.0.0: Local MCP server reduces Claude Code token usage by 91%

What context-link does

context-link v1.0.0 is a local Model Context Protocol (MCP) server that addresses Claude Code's inefficient file reading behavior. Instead of reading entire files to understand a single function, it indexes your codebase with Tree-sitter and serves Claude only the exact symbols, dependencies and structure it needs.

Example from the source: Instead of reading auth.go (3,200 tokens) to find validateToken(), Claude gets just that function + its dependencies (288 tokens).

Key features in v1.0.0

• 11 supported languages: Go, Python, TypeScript, Rust, Java, C/C++, C#, JavaScript, etc. (You can add more using the Language Registry)
• Hybrid search: vector embeddings + keyword matching
• Git-aware context: shows which symbols you've modified in your working tree
• Regex pattern search across symbol bodies
• Call trees, blast radius, dead code, test linking
• Batch operations — 50 file skeletons or symbols in one call
• Every response shows tokens_saved_est and cost_avoided_est
• explore_codebase: Built-in prompt that teaches the agent the optimized workflow

Performance benchmarks

• 91% token reduction in specific cases (3,200 tokens → 288 tokens)
• 70-80% fewer tokens across full tasks when audited by another Claude Code instance on multiple Python and Go codebases
• Semantic search in 197µs
• Incremental re-index in <10ms
• Runs fully local, no cloud

Technical details

The tool is licensed under Apache-2.0 and available at https://github.com/context-link-mcp/context-link. According to the source, it "stacks well with Headroom + RTK if you're layering token savings."