The Hidden Cost of Context: Introducing Context Debt

Key Takeaways

• Context assembly is add-biased: incidents are fixed by adding clauses, sources, examples, and reminders, while removals risk invisible regressions - so the context only grows, and within eighteen months becomes archaeologically opaque.
• This accumulation is context debt, and it's structurally worse than technical debt: interest is charged per request (tokens, latency, attention dilution), the artifact that carries it exists for seconds and is reviewed by no one, and feedback on bad removals is silent and delayed, producing removal anxiety.
• Special forms include prompt scar tissue (patches for retired models' failure modes) and the debt spiral, where dilution caused by past additions generates the incidents that motivate new ones.
• Servicing the debt takes three mechanisms: a context ledger (every element carries owner, justification, eval coverage, and review-by date), scheduled ablation (a standing report of what each element is worth, replacing courage with measurement), and budget review for additions (what does this displace; can it be conditional instead of pinned).
• The goal isn't zero debt - deliberate, documented loans are fine - it's debt that is visible, owned, and serviced.