Contextra

What it does

Contextra injects surgical codebase context into your AI prompts, reducing token usage by 73% and improving output accuracy 4.2×. Works with Claude, Copilot, Cursor, and GPT etc.

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  AI Context FlowNov 2025 · ▲433

  Reusable AI Memory for Smarter Prompts Anywhere

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  Mastra CodeFeb 2026 · code.mastra.ai · ▲198

  The AI coding agent that never compacts

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  Context EvaluatorFeb 2026 · ▲13

  Detect and fix issues in your AGENTS.md, CLAUDE.md, and more

• CS
  Context Surgeon – Let AI agents edit their own context windowApr 2026 · github.com · ▲5

  AI agents accumulate stale tool results — file reads, web fetches, bash outputs — in their context window. Every one sits there for the entire conversation, consuming tokens and degrading quality. The standard fix is auto-compaction: wait until full, then drop content indiscriminately. Context Surgeon gives the agent three operations — evict, replace, and restore — so it can manage its own context. It works as a transparent local proxy that intercepts API requests, assigns IDs to content blocks, and applies eviction directives before forwarding. The agent calls the tools via bash. The proxy…

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  kontextaJun 2026 · kontexta.dev · ▲4

  Save your tokens. Remember Forever

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  ContextVault – Shared memory layer for your AI and your teamJul 2026 · contextvault.dev · ▲12

  Hi HN, I'm Kevin. I built ContextVault because I kept running into the same problem with AI tools. Every project accumulated prompts, coding conventions, architectural decisions, examples, and other pieces of context that made the models significantly more useful. The problem was that this information quickly became fragmented. Some lived in ChatGPT Projects, some in Claude, some in Markdown files, some in internal documentation, and some only existed in previous conversations. Late last year, I realized several people on our team were solving the same problems independently because previous…

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• NW
  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

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  Life & fun · May 2026 · github.com

• FM
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