SymDex
Repo-local symbol index (functions, routes, call graphs across 16+ languages) exposed to the agent via CLI and MCP. The agent locates a precise symbol in about 200 tokens instead of swallowing a whole file at 7500.
Strengths
- Symbol lookup in about 200 tokens where reading the file costs thousands
- Dual surface: CLI for you, MCP server so the agent queries directly
- Covers 16+ languages, a single index for a polyglot codebase
Limitations
- Overlaps heavily with Graphify, you will pick one rather than run both
- Recent and lightly battle-tested, the index must track your refactors to stay reliable
Best for
- Onboarding onto a medium-to-large codebase where the agent must navigate without re-reading everything
- Long sessions where the token budget drains into repeated file reads