{"repo":"manavgup/context-analyzer","free":true,"listed":false,"github":"https://github.com/manavgup/context-analyzer","clone":"git clone https://github.com/manavgup/context-analyzer.git","description":"See where your Claude Code tokens go — cost per call scales 4.3x with context size. Hooks + SQLite + dashboard + MCP server for context window forensics.","language":"HTML","stars":13,"topics":["anthropic","claude-code","context-engineering","context-window","cost-optimization","dashboard","fastapi","llm","mcp","observability"],"license":"MIT","category":"mcp-servers","readme_excerpt":"Context Analyzer Context window forensics for AI coding agents. See exactly where your tokens go — per call, per turn, per session · dashboard · MCP server · Claude Code + Codex. Quick Start · Proof · What it does · Architecture · Issues AI agents / LLMs: read /llms.txt --- Your Claude Code calls cost 4.3x more at large context than at small context — $0.23/call at 63K tokens vs $0.98/call at 721K. Context Analyzer shows you exactly where that money goes, per call, per turn, per session. Measured across real sessions: - Cost per API call scales 4.3x from small to large context (63K peak = $0.23/call vs 721K peak = $0.98/call) - 30% of context becomes stale dead weight within 5 turns — you keep paying for it anyway - Tool I/O consumes 60%+ of used context — most of your window isn't conversation - Sessions past 50% of the 1M window drive disproportionate cost — the last half of a long session is the expensive half - Cache hit rate is 96–98% when the system prompt prefix stays stable — and every prefix change costs you a cold re-read Quick Start context-tracker up installs the Claude Code hooks (backed up, reversible), ingests your existing transcripts, and opens the dashboard. You'll see data from your past sessions immediately — the hooks only add live capture going forward. Undo everything with context-tracker down . Then open: - http://localhost:8080/ — single-session dashboard - http://localhost:8080/sessions — cross-session analytics Proof Cost scales with context — see i","default_branch":null,"files":null,"tree":[],"storefront":"/r/manavgup","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/manavgup/context-analyzer/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}