Add failed action feedback rules

Docs/KnowledgeAndSkillFoundation.md

@@ -304,3 +304,37 @@ Outcome rules:
 
 Knowledge-check rule: checks should deepen understanding and improve outcomes,
 not gate the first survival loop.
+
+## Failed-Action And Poor-Result Feedback
+
+When an action fails or produces a poor result, the player should receive a
+plain explanation that points to the likely cause and next useful response. The
+message should be short enough to read during play.
+
+Feedback should identify:
+
+- missing or unsuitable materials;
+- unsafe weather, darkness, terrain, or exposure;
+- low stamina, hunger, thirst, injury, sickness, or exhaustion;
+- poor tool choice or damaged tools;
+- low knowledge, low practical experience, or missed prerequisite concept;
+- invalid placement, fire risk, drainage risk, blocked access, or instability;
+- normal uncertainty when the game intentionally does not reveal exact odds.
+
+Message style:
+
+- Say what happened.
+- Name one likely cause.
+- Offer one useful next step.
+- Avoid blaming the player.
+- Avoid revealing hidden formulas or exact random rolls.
+
+Example messages:
+
+- "The fire catches poorly. Damp fuel and wind are making ignition unreliable."
+- "The shelter frame feels unstable. Flatter, drained ground would help."
+- "You waste some fiber. More practice with binding would improve the result."
+- "Your hands shake from exhaustion. Rest or food would make this safer."
+
+Feedback rule: poor results should teach the player what to try next without
+turning every failure into a lecture.