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+# CORPUS-0010
+## Hard Stop After Loss
+### Status: Training Corpus Seed
+### Layer: Layer_1--Worked_Examples
+### Purpose: Teach that a venture loss can remove the trader's ability to continue acting by exhausting liquidity, trust, transport access, or settlement capacity
+### Repository Path: docs/training/corpus/Layer_1--Worked_Examples/CORPUS-0010-hard-stop-after-loss.md
+
+---
+
+## 0. Scenario
+
+A trader in Ostia sends oil to Capua.
+
+The venture fails.
+
+The failure is not only a negative number in the account.
+
+The loss leaves the trader unable to begin the next venture because his usable capacity has fallen below the minimum required to act.
+
+This is a hard stop.
+
+---
+
+## 1. Starting Condition
+
+| Item | Value |
+|---|---:|
+| Coin stock before venture | 20 asses |
+| Oil purchase price | 10 asses |
+| Movement and handling cost | 6 asses |
+| Reserve coin after dispatch | 4 asses |
+| Minimum coin needed for next small venture | 8 asses |
+
+The trader begins with enough coin to attempt the venture.
+
+He does not have much room for failure.
+
+---
+
+## 2. Expected Outcome
+
+The trader expects to sell the oil in Capua for 22 asses.
+
+Expected total cost:
+
+```text
+10 + 6 = 16 asses
+```
+
+Expected profit:
+
+```text
+22 - 16 = 6 asses profit
+```
+
+If successful, coin stock after settlement would increase.
+
+---
+
+## 3. Failed Outcome
+
+The oil sells for only 12 asses because a rival shipment arrived first.
+
+Actual result:
+
+```text
+sale value = 12 asses
+total cost = 16 asses
+loss = 4 asses
+```
+
+Coin position after settlement:
+
+```text
+starting coin: 20 asses
+venture cost: -16 asses
+sale return:  +12 asses
+------------------------
+ending coin:   16 asses
+```
+
+The trader still has coin.
+
+But the hard stop may come from obligations and access, not coin alone.
+
+---
+
+## 4. Hidden Settlement Problem
+
+The trader had promised payment to the cart driver after sale.
+
+| Obligation | Value |
+|---|---:|
+| Cart payment still due | 6 asses |
+| Warehouse fee due | 2 asses |
+| Personal subsistence reserve needed | 4 asses |
+
+Usable coin after required payments:
+
+```text
+ending coin:             16 asses
+cart payment due:        -6 asses
+warehouse fee due:       -2 asses
+subsistence reserve:     -4 asses
+---------------------------------
+usable venture coin:      4 asses
+```
+
+The next small venture requires 8 asses.
+
+The trader has only 4 usable asses.
+
+The system stops him from launching the next venture unless he finds credit, sells assets, reduces costs, or accepts a smaller action.
+
+---
+
+## 5. Trust Hard Stop Variant
+
+Even if coin remains, trust may fail.
+
+If the trader delays payment to the cart driver:
+
+- the cart driver may refuse future service
+- other drivers may hear of late payment
+- transport costs may rise
+- credit may tighten
+- the trader may lose timing advantage
+
+The hard stop may be:
+
+```text
+transport_access = unavailable
+```
+
+not merely:
+
+```text
+coin_stock = low
+```
+
+---
+
+## 6. Access Hard Stop Variant
+
+If the failed venture damages reputation with the Capua buyer:
+
+- future buyer access declines
+- seller confidence declines
+- deferred payment becomes unavailable
+- the same route becomes less viable
+
+The trader may still have coin, but fewer people will transact with him.
+
+---
+
+## 7. Correct Model Behavior
+
+The model should separate:
+
+| Category | Meaning |
+|---|---|
+| arithmetic loss | sale value minus total cost |
+| remaining coin | coin after settlement |
+| usable coin | coin after obligations and reserves |
+| trust condition | whether partners still transact |
+| access condition | whether route and market remain open |
+| next action threshold | minimum needed to continue |
+
+Failure should be evaluated by whether the actor can still act.
+
+---
+
+## 8. Incorrect Model Behavior
+
+The model should not:
+
+- treat all losses as equal
+- stop analysis at the arithmetic loss
+- assume remaining coin is fully usable
+- ignore unpaid obligations
+- ignore trust damage
+- ignore minimum venture thresholds
+- assume the next venture is still available
+- treat failure as only a score reduction
+
+---
+
+## 9. Recovery Paths
+
+A hard stop may be recoverable through:
+
+- smaller venture
+- non-coin settlement
+- credit
+- asset sale
+- favor from contact
+- cost reduction
+- delayed action
+- accepting a lower-status opportunity
+
+Recovery is not automatic.
+
+The model should identify what capacity is missing.
+
+---
+
+## 10. Layer-0 Concepts Used
+
+This example uses:
+
+- `CORPUS-0003-money-has-purchasing-power`
+- `CORPUS-0004-cost-includes-more-than-purchase-price`
+- `CORPUS-0005-profit-is-sale-minus-total-cost`
+- `CORPUS-0006-delay-is-economic-cost`
+- `CORPUS-0009-liquidity-differs-from-wealth`
+- `CORPUS-0010-credit-depends-on-trust`
+- `CORPUS-0012-every-venture-risks-loss`
+- `CORPUS-0019-success-has-no-boundary-failure-has-a-hard-stop`
+
+---
+
+## 11. Success Condition
+
+If the model sees a venture loss and asks whether liquidity, trust, access, or minimum action capacity has fallen below the threshold needed to continue, this file is functioning correctly.