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Bjørn Johansen

6 posts · bjornjohansen.no

  1. Five models pass the easy code reviews. Then the diffs get hard.

    A hands‑on benchmark of five LLM code‑review models (Claude Opus 5, GPT 5‑6 Sol, Grok 4.6, Kimi 3, GLM 5.3, Qwen 3.8 Max, DeepSeek v4 Pro) shows that all models ace tiny 15‑line diffs but diverge sharply on 100‑300‑line, cross‑file changes. The author built a deterministic harness (single HTTP call, fixed system prompt, JSON output) and measured detection rate, false‑positives, latency, token usa…

    Bjørn Johansenbjornjohansen.com16 min

  2. Two Claude accounts, one session

    claude-swap is a CLI tool that watches your Claude usage and automatically swaps to a secondary account when the active account hits 90% of its quota. Install via pipx, add accounts, and run `cswap auto` (or its dashboard) to keep sessions alive, though each swap incurs a cold‑cache cost.

    Bjørn Johansenbjornjohansen.com1 min

  3. The pursuit of excellence does not need justification

    Opinion piece arguing that engineers should pursue excellence without needing to justify it, using anecdotes about a fast terminal emulator and a WordPress menu cache to illustrate how over‑engineering can yield unexpected downstream benefits, while also acknowledging the practical need for “good enough” decisions.

    Bjørn Johansenbjornjohansen.com2 min

  5. One style guide for everything Claude Code writes

    A detailed walkthrough of forking the nbj‑write‑clearly Claude Code skill to enforce the Google Developer Documentation style guide across all developer‑facing prose (docs, comments, commit messages, review feedback). The fork expands the trigger set, vendors the 70‑page guide offline via a Bun sync script, and adds a layered approach (global CLAUDE.md rules, on‑demand skill, per‑agent preloaded…

    Bjørn Johansenbjornjohansen.com5 min