Open source. Open possibilities.

CoalLedger is a docs-health checking suite for AI coding agents — the documentation counterpart to CoalMine's code canaries. Seven canaries flag wrong, incomplete, stale, contradictory, broken, unreadable and (optionally) leaked documentation, with a bundled zero-dependency CommonMark+GFM AST engine, context-judged severity and choice-gated fixes.

Free, local-first tool that tracks AI coding token usage and cost across 41 tools and agents (Claude Code, Cursor, Codex, Gemini, etc.), broken down by model, project, and task.