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Justyna Wojtczak
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Justyna Wojtczak

@justi84
Founder snipe.sale. I'm a #INTJ and #LCHF advocate, #ruby & #Rails, #AI & #LLM
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justynawojtczak.com
Joined March 2010
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  • user avatar
    Justyna Wojtczak
    @justi84
    Jun 23
    Air Canada's chatbot invented a refund rule. A tribunal made them honor it. The unsettling part: the bot's output was schema-valid. Green CI. Passing tests. Schema checks shape, not truth. A second LLM "faithfulness judge" in Ruby catches the gap:
    Image
    Schema-valid isn't enough - LLM validation in Ruby
    From justynawojtczak.com
  • Vibe Coding
    user avatar
    Justyna Wojtczak
    @justi84
    Jun 5
    aya.codes OpenSource console manager
  • user avatar
    Justyna Wojtczak
    @justi84
    Apr 27
    Long Claude Code sessions drift - agent forgets your ADRs, re-suggests approaches you already rejected. Shipped context-revive v0.2.0: auto re-injects a deterministic project brief on cadence + after /compact + /clear. Real demo↓
  • user avatar
    Justyna Wojtczak
    @justi84
    Apr 26
    Just shipped ruby_llm-contract 0.8.0 - Contracts + Evals for RubyLLM. New thinking/reasoning_effort DSL, adapter unification via Chat#with_thinking, sharper narrative.
    Image
    GitHub - justi/ruby_llm-contract: Validate and retry LLM outputs for ruby_llm. Describe the JSON...
    From github.com
  • user avatar
    Justyna Wojtczak
    @justi84
    Apr 24
    2026 AGENTS.md research was blunt on one thing: don't auto-generate architecture overviews or directory trees. Evidence: reduces agent success by 0.5–2%, costs 20%+ more. augmentcode.com/guides/how-to-… So revive injects only what the agent can't grep out of the code itself.
    augmentcode.com
    How to Build Your AGENTS.md (2026): The Context File That Makes AI Coding Agents Actually Work
    Build an AGENTS.md that improves AI coding agent performance. Covers structure, writing patterns, modular org, and ETH Zurich research on context file quality.

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