SDL-MCP: Symbol Delta Ledger

Skill by ara.so — MCP Skills collection.

SDL-MCP is a policy-centered context budget layer for coding agents that transforms sprawling codebases into compact, high-signal context. It indexes code into a searchable symbol graph, providing 4-20x token savings by serving precisely the right amount of context through the Iris Gate Ladder escalation system.

What SDL-MCP Does

• Symbol Cards: Every function, class, interface, type, and variable becomes a ~100 token metadata record instead of ~2,000 tokens of raw code
• Graph Slicing: Follow dependency graphs (not directory boundaries) to get the N most relevant symbols within a token budget
• Iris Gate Ladder: Four-rung context escalation from compact cards to full source (policy-gated)
• Delta Packs & Blast Radius: Semantic change intelligence showing what changes mean and who's affected
• Live Indexing: Real-time code intelligence reflecting unsaved editor changes
• Task-Shaped Retrieval: Context engine that selects the right rungs and evidence for debug/review/implement/explain tasks

Installation

Prerequisites: Node.js 24+ required