• Event — UserPromptSubmit · Status — live
• In → out — {prompt, cwd} → additionalContext · fail-open · PYTHONUTF8=1
• Can — inject context
• Cannot — block the turn
• Script — E:\hooks\inject-protocol.mjs
• Tunable — every number below is a config.json default

Block 1 · protocol

• Source — per-prompt-protocol.md
• Rides every turn
• Memory + skill + write-conformance rules + platform map

Block 2 · memory recall

• Source — memory_content_fts
• Scope — cwd → project; tags = project or all
• Skip — deleted / superseded
• Rank — bm25 pool 12 → gap floor 45% → 0.6 rel + 0.25 recency + 0.15 conf
• Emit — top 3, ≤ 1,500 chars each

Block 3 · skill hints

• Source — skills_fts, curated = 1
• Rank — description-weighted bm25 + relevance floor + scope
• Emit — top 2
• Nothing forces a load → see PreToolUse