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See what your AI sees. Framework-agnostic LLM context window visualizer.

361 starsTypeScript

Context Lens: Devtools for your agent context

by theredbeard·Feb 13, 2026·3 points·2 comments
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AI Analysis

●●●BangerSolve My ProblemSlick

Solves real LLM cost mystery with zero-code API interception across Claude, GPT, Gemini.

Strengths
  • •Wire-protocol proxy approach means zero code changes to existing agents—genuinely frictionless.
  • •Answers a painful question every agent developer has: 'why is this session so expensive?'
  • •Polished multi-command CLI (background mode, doctor diagnostics, aliases) feels production-ready.
Weaknesses
  • •Market still early; success depends on agent developer adoption and maintaining provider API compatibility.
Target Audience

AI engineers, prompt engineers, developers using Claude, GPT, Gemini in coding workflows

Similar To

OpenAI API usage dashboards · Anthropic console analytics

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Developer Tools●●Solid

Context Lens: View your CLI's agent context in realtime

Runs a local proxy and breaks down exactly what's filling your context window — system prompts, tool defs, conversation history, tool outputs and 'thinking' blocks — so you can stop guessing why a session is expensive. It supports Claude, Codex, Gemini, Pi, Aider and more with privacy modes and a background daemon; practical touches like --no-ui and doctor mode show real product thinking. If you care about security, inspect the proxy/key handling before using it with sensitive credentials.

Niche GemSolve My Problem
theredbeard
104mo ago