Athena v1.2: Local MCP Server Gives Coding Agents AST-Based Blast Radius in 14 Languages
Significant-Log-4272 · reddit · 2026-11-13
Developer released Athena (athena-mcp) v1.2, a local-first MCP server fixing a common coding-agent failure: editing a function signature, checking the git diff, and quietly breaking 10 callers elsewhere.
Core capability
- Real local AST and structural analysis across 14 languages (Python, TS/JS, Go, Rust, C/C++, Java, Kotlin, Scala, C#, Ruby, PHP, Swift), handing agents exact commit SHAs, line spans and affected caller trees
- Zero extra LLM calls, no API keys, fully offline
7 MCP tools over stdio: inspectrepository, analyzegithistory, detectpotentialbreakingchanges, analyzechangegraph, verifybreakinganddocdrift, generatereleasenotes, generateverifiedreleasebrief
30-second setup: clone, pip install -e ., then athena init-mcp cursor to generate ready-to-paste config for Cursor, Claude Desktop or VS Code.
Also ships an interactive terminal UI (athena ui), a pre-commit breaking-change gate (athena check --staged), SARIF export and single-file HTML reports. Apache 2.0 licensed.
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