op-foundationslisted

Use when asking how Claude Code actually works under the hood, how the LLM loop and tools combine, what the three levers (context / scope / verification) are, why quality drops mid-session (drift / dilution / hallucination), how the 1M context window degrades before it fills, when to start a fresh terminal, what Claude genuinely can't do, which project types fit, which model (Opus / Sonnet / Haiku) to pick, when plan mode or fast mode is worth it, or how plan budgets and context cost work. To *recover* a session that's already degrading mid-flight (rather than understand why a failure mode happens), that's op-recovery. Routes to the foundations chapters (01–04) of Achron Spine.
TimTGelhard/ACHRON-spine · ★ 1 · AI & Automation · score 74

Install: claude install-skill TimTGelhard/ACHRON-spine

# op-foundations — foundations of Claude Code The manual has atomic files for each foundational concept. Read ONLY the one that matches the question — don't load the whole folder. ## Index | Question / situation | Atomic file | |---|---| | How does Claude Code actually work? What's the loop? | `~/.achron-spine/chapters/foundations/01a-llm-loop.md` | | What are the three levers on output quality? | `~/.achron-spine/chapters/foundations/01b-three-levers.md` | | Why is Claude drifting / hallucinating / losing focus? Which failure mode is this? | `~/.achron-spine/chapters/foundations/01c-failure-modes.md` | | How does the 1M context window really behave? When do I restart? | `~/.achron-spine/chapters/foundations/02-context-budget.md` | | What can Claude *not* do, structurally? | `~/.achron-spine/chapters/foundations/03a-hard-limits.md` | | What does Claude do unreliably (debugging state, perf, multi-process)? | `~/.achron-spine/chapters/foundations/03b-soft-limits.md` | | Does this project type fit Claude well? Warning signs we've hit a limit? | `~/.achron-spine/chapters/foundations/03c-project-fit.md` | | Which model — Opus, Sonnet, Haiku — for this task? | `~/.achron-spine/chapters/foundations/04a-model-tiers.md` | | Is plan mode / fast mode worth using here? | `~/.achron-spine/chapters/foundations/04b-plan-and-fast-mode.md` | | Plan budget, context cost discipline, when NOT to use Claude Code | `~/.achron-spine/chapters/foundations/04c-budget-and-cost.md` | | Should this re