Aptu Coder
Built on tree-sitter, this server gives Claude structural insight into codebases across 11 languages without dumping raw files into context. You get directory trees with symbol counts, function signatures with line ranges, call graphs that trace dependencies, and targeted symbol lookups. The analyze_directory, analyze_file, and analyze_symbol tools replace the guess-and-grep pattern with precise structural queries. Benchmarks against Django and OpenFAST codebases show 46-68% token reductions on migration and audit tasks. Supports stdio or HTTP transport, with HTTP recommended for multi-agent setups where goose spawns delegates. Output caps and pagination keep large codebases manageable. Three editing tools and a filtered exec_command round out the kit for actual code changes.
- GitHub stars
- 7
- tools
- 8
- transport
- STDIO
- last updated
- Nov 11, 2026
Tools
8 toolsPublic tool metadata for what this MCP can expose to an agent.
analyze_directoryDirectory tree with LOC, function, and class counts; respects `.gitignore`; file paths in the output are relative to the working directory
Directory tree with LOC, function, and class counts; respects `.gitignore`; file paths in the output are relative to the working directory
No parameter schema in public metadata yet.
analyze_fileFunctions, classes, and imports with signatures and line ranges; returns graceful fallback (line count, file head, no AST) for unsupported extensions
Functions, classes, and imports with signatures and line ranges; returns graceful fallback (line count, file head, no AST) for unsupported extensions
No parameter schema in public metadata yet.
analyze_moduleLightweight function and import index (~75% smaller than `analyze_file`); returns graceful fallback (empty index with note) for unsupported extensions
Lightweight function and import index (~75% smaller than `analyze_file`); returns graceful fallback (empty index with note) for unsupported extensions
No parameter schema in public metadata yet.
analyze_symbolCall graph for a named symbol across a directory; callers, callees, call depth
Call graph for a named symbol across a directory; callers, callees, call depth
No parameter schema in public metadata yet.
edit_overwriteCreate or overwrite a file; creates parent directories
Create or overwrite a file; creates parent directories
No parameter schema in public metadata yet.
edit_replaceReplace a unique exact text block or all non-overlapping occurrences (replace_all=true); errors if zero or multiple matches; empty `new_text` deletes the block
Replace a unique exact text block or all non-overlapping occurrences (replace_all=true); errors if zero or multiple matches; empty `new_text` deletes the block
No parameter schema in public metadata yet.
exec_commandRun a shell command; returns stdout, stderr, exit code; output capped and filtered
Run a shell command; returns stdout, stderr, exit code; output capped and filtered
No parameter schema in public metadata yet.
verify_anchorsBatch-verify path:line[:symbol] anchors against a workspace root: file exists, 1-based line within range, and optional word-boundary symbol match within a plus or minus 2 line window
Batch-verify path:line[:symbol] anchors against a workspace root: file exists, 1-based line within range, and optional word-boundary symbol match within a plus or minus 2 line window
No parameter schema in public metadata yet.
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aptu-coder
A Model Context Protocol (MCP) code-intelligence server that gives AI coding agents pre-parsed symbol tables and structural code search instead of raw file bytes, cutting token usage by up to 59% in the cited benchmark conditions (see Benchmarks). OpenSSF silver certified: fewer than 1% of open source projects reach this level.
Details
- Repository
- github.com/clouatre-labs/aptu-coder
- Package
https://github.com/clouatre-labs/aptu-coder/releases/download/v0.46.0/aptu-coder-0.46.0-aarch64-apple-darwin.mcpb- Transport
- STDIO
- Registry
- MCP registry, active