Claude Code’s local AGENTS.md loader can disappear when telemetry or feature-flag fetching is disabled. This guide explains the hidden dependency, a canary test, and the portable @AGENTS.md workaround.
Claude 5-era agents perform better when context engineering shifts from rigid rules and examples to judgment, progressive disclosure, and tool interface design. Audit conflicting guidance, move deep logic into skills, and use deferred loading/tool search patterns to keep context focused when it matters.
Good nonfiction discovery used to feel like curated browsing: libraries filtered the chaos, then randomness did the rest. Semantic search recreates that browsing feel using embeddings and vector search, so users can find prize-worthy books by meaning—not just keywords.