Add learning exploit guardrails

AGRARIAN_DEVELOPMENT_ROADMAP.md

@@ -888,7 +888,7 @@ Target deliverable: A small group can join a server, spawn into one biome, gathe
 - [x] Define the first subject content format: topic, concepts, difficulty tier, prerequisite concepts, in-game effect, practice action, and source note. Added a compact subject content schema to `Docs/KnowledgeAndSkillFoundation.md` with `topic`, `concepts`, `difficulty_tier`, `prerequisite_concepts`, `in_game_effect`, `practice_action`, and `source_note`, plus a fire-clearance example suitable for later data assets.
 - [x] Add a small MVP question bank for elementary survival knowledge. Added six elementary survival question records to `Docs/KnowledgeAndSkillFoundation.md` for fire clearance, potable water, cold exposure, shelter drainage, bleeding care, and fiber identification, each with answer options, correct answer, and practical feedback.
 - [x] Define when deeper questions should matter: quality improvements, safer work, complex crafting, teaching others, and advanced branches. Added deeper-question timing rules to `Docs/KnowledgeAndSkillFoundation.md`, keeping advanced checks out of the first survival loop while tying them to quality improvements, safer work, complex crafting, teaching others, and advanced branches.
-- [ ] Add design notes for avoiding exploit farming and rote memorization.
+- [x] Add design notes for avoiding exploit farming and rote memorization. Added exploit and rote-memorization guardrails to `Docs/KnowledgeAndSkillFoundation.md`, covering diminishing returns, meaningful action context, repeated prompt suppression, recovery-only credit, learned-concept separation, and varied wording to reward decisions and practice instead of low-cost repetition.
 - [ ] Add persistence requirements for knowledge, skill experience, learned concepts, failed attempts, and tutorial state.
 - [ ] Add multiplayer rules for teaching, observation, shared work, and group skill benefits.