Closes the active-recall gap across ALL delivery paths. Kit: CLAUDE.md.tmpl mandates actively calling memory_recall; install_tier2 ships the rule with the hook. PLUGIN: new recall-rule-reminder hook injects the active-recall rule each turn (a plugin can't write CLAUDE.md) + cache.py bundled = full parity. Tier 1 (bare MCP): portable AGENTS.md-first drop-in-terminal one-liner detects CLAUDE.md/GEMINI.md/AGENTS.md across ~28 tools. Honest copy: deterministic injection attempt (fail-open) + active-recall rule; rule and hook are complementary, not pick-one.