Symbol Delta Ledger (SDL-MCP) is a policy-centered context budget layer for coding agents: Symbol-graph intelligence combined with precision tools. It turns sprawling codebases into compact, high-signal context that saves tokens, speeds up workflows, and improves agent output.

File-backed workflow harness for reliable Claude Code and Codex sessions.

IGraph 把代码仓库解析为「符号节点 + 调用关系边」的知识图谱，叠加 LLM 语义摘要与向量索引，通过双通道（Dense + FTS5）RRF 融合检索对外服务。支持挂载 PRD / DB Schema 等多模态资源建立跨模态关联，内置 MCP Server 可直接接入 Cursor / Claude Code 等 AI 助手。

The code intelligence layer for AI coding agents. Semantic indexing, graph navigation, and repository intelligence

A tool for agents and humans to understand a repo, assess diff impact/risk, navigate code, and answer questions fast.

Pre-indexed code knowledge graph MCP — callers, callees, impact across 23 languages incl. R, Julia, MATLAB, Perl. BioRouter .brxt extension.

Use CodeGraph from Pi.

CodeGraph tools for Pi and OMP with worktree-aware index lifecycle management

Pre-indexed code knowledge graph for Claude Code, Codex, Gemini, Cursor, OpenCode and Hermes Agent — fewer tokens, fewer tool calls, 100% local