v0.6.0

Added

• loop-engineering recipe + pretool-loop-guard PreToolUse hook — opt-in discipline for bounded, externally-verified agent loops (G1–G6): explicit done-criterion, iteration+token budget, require-progress, escalate-on-stall, verify externally never by self-judgment, oscillation/infinite-loop guard. Grounded in a 5-source verification pass (Huang/DeepMind "Cannot Self-Correct Yet", CRITIC, Reflexion, "When Agents Do Not Stop", Anthropic Building Effective Agents — verify hierarchy rules/tests > visual > LLM-judge). The Claude hook is a non-blocking permissionDecision: ask soft-warn that self-gates on the recipe, detects same-action-repeat / runaway tool-call budget, is fail-open, and honors CONDUCTOR_SKIP_LOOP_GUARD / CONDUCTOR_LOOP_REPEAT_MAX / CONDUCTOR_LOOP_BUDGET / CONDUCTOR_LOOP_COOLDOWN_SECONDS. Recipe count 12 → 13, hook templates 9 → 10. Hook is Claude-only (ADR-034); other tools use the rule text. — ADR-038.