Add Islamic finance halal compliance reasoning task

tasks-json/islamic-finance-halal-compliance.json

@@ -0,0 +1,40 @@
+{
+    "name": "Islamic Finance Halal Compliance",
+    "description": "This task evaluates whether financial choices are compatible with Islamic finance constraints using explicit screening rules. The model must reason through business activity filters, leverage/interest thresholds, contract structure, and purification requirements, then produce a clear compliance verdict.",
+    "modality": "Text only",
+    "diagram": null,
+    "citations": null,
+    "examples": [
+        [
+            {
+                "input": "Use the following screening policy:\n- Business activity screen: fail if core revenue is from alcohol, gambling, conventional banking, adult entertainment, or weapons manufacturing.\n- Financial ratio screens:\n  - Interest-bearing debt / market cap must be <= 33%\n  - Cash and interest-bearing securities / market cap must be <= 33%\n\nCompany A data:\n- Core business: cloud software\n- Revenue mix: 94% software subscriptions, 6% treasury interest\n- Interest-bearing debt / market cap: 24%\n- Cash and interest-bearing securities / market cap: 38%\n\nQuestion: Is Company A compliant under this policy?",
+                "output": "Not compliant under the stated policy.\n\nReasoning:\n1. Business activity screen passes: cloud software is a permissible core activity.\n2. Debt ratio passes: 24% <= 33%.\n3. Cash/interest-bearing securities ratio fails: 38% > 33%.\n\nConclusion: Company A fails one mandatory financial ratio screen, so it is not compliant."
+            }
+        ],
+        [
+            {
+                "input": "Policy for purification:\n- If an otherwise-compliant stock has incidental non-permissible income, donate that percentage of dividend income to purification.\n\nInvestor received:\n- Dividend: $1,250\n- Non-permissible income ratio reported by screening provider: 4.8%\n\nQuestion: How much should be purified?",
+                "output": "Purification amount = 4.8% of $1,250 = $60.00.\n\nCalculation:\n- 0.048 * 1250 = 60\n\nConclusion: Donate $60.00 as purification."
+            }
+        ],
+        [
+            {
+                "input": "Choose the more Shariah-aligned financing structure based on contract form:\n\nOption A:\n- Conventional loan\n- Principal guaranteed\n- Fixed 8% annual interest payment\n\nOption B:\n- Musharakah partnership\n- Capital contributed by both parties\n- Profit sharing at pre-agreed ratio\n- Loss sharing proportional to capital contribution\n\nQuestion: Which option is more aligned and why?",
+                "output": "Option B is more Shariah-aligned.\n\nReasoning:\n1. Option A is an interest-based debt contract with fixed return on principal, which conflicts with riba prohibition.\n2. Option B is equity-like risk sharing (profit-and-loss sharing), which matches core Islamic finance principles.\n\nConclusion: Option B is the compliant structure among the two."
+            }
+        ],
+        [
+            {
+                "input": "A DeFi vault advertises \"halal yield\". Terms:\n- User deposits stablecoins.\n- Protocol lends to margin traders and charges variable interest.\n- Vault pays depositors from collected lending interest minus fees.\n- No ownership in real assets; returns come from lending spread.\n\nQuestion: Based only on these terms, is the yield source likely compliant? Explain.",
+                "output": "Likely not compliant based on the stated mechanism.\n\nReasoning:\n1. Return source is lending interest from margin borrowing.\n2. Depositor payout is directly derived from interest spread, not trade or asset profit-sharing.\n3. Structure appears debt-interest based rather than partnership/asset-backed profit model.\n\nConclusion: This setup is likely non-compliant unless the underlying return mechanism is materially restructured."
+            }
+        ]
+    ],
+    "tags": [
+        "Islamic Finance",
+        "Halal Compliance",
+        "Financial Screening",
+        "Ethical Reasoning",
+        "Risk Assessment"
+    ]
+}

tasks.md

@@ -62,6 +62,7 @@
 | [Interpreting Legal Language And Precedents](https://github.com/NousResearch/Open-Reasoning-Tasks/blob/main/tasks/interpreting-legal-language-and-precedents.md) | Analyzing and interpreting legal texts, statutes, or case law to understand their implications and applications. |
 | [Interpreting Nonverbal Communication](https://github.com/NousResearch/Open-Reasoning-Tasks/blob/main/tasks/interpreting-nonverbal-communication.md) | Analyzing and interpreting nonverbal cues in human communication. |
 | [Interpreting Statistical Data](https://github.com/NousResearch/Open-Reasoning-Tasks/blob/main/tasks/interpreting-statistical-data.md) | Analyzing and interpreting statistical data presented in various formats. |
+| [Islamic Finance Halal Compliance](https://github.com/NousResearch/Open-Reasoning-Tasks/blob/main/tasks/islamic-finance-halal-compliance.md) | Evaluating financial decisions for Shariah alignment using explicit screening criteria, contract structure, and purification rules. |
 | [Lateral Thinking Puzzles](https://github.com/NousResearch/Open-Reasoning-Tasks/blob/main/tasks/lateral-thinking-puzzles.md) | Solving lateral thinking puzzles to evaluate the ability to think creatively, consider unconventional scenarios, and ask relevant questions to reach the correct solution. |
 | [Mathematical Word Problems](https://github.com/NousResearch/Open-Reasoning-Tasks/blob/main/tasks/mathematical-word-problems.md) | Solving mathematical word problems to evaluate the ability to interpret real-world scenarios, extract relevant information, and perform appropriate calculations. |
 | [Mental Rotation Tasks](https://github.com/NousResearch/Open-Reasoning-Tasks/blob/main/tasks/mental-rotation-tasks.md) | Mentally rotating objects or shapes and predicting their appearance from different angles. |

tasks/islamic-finance-halal-compliance.md

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+# Islamic Finance Halal Compliance
+
+## Description:
+This task evaluates whether financial choices are compatible with Islamic finance constraints using explicit screening rules. The model must reason through business activity filters, leverage/interest thresholds, contract structure, and purification requirements, then produce a clear compliance verdict.
+
+## Modality:
+Text only
+
+## Examples:
+
+### Example 1:
+
+Input:
+```
+Use the following screening policy:
+- Business activity screen: fail if core revenue is from alcohol, gambling, conventional banking, adult entertainment, or weapons manufacturing.
+- Financial ratio screens:
+  - Interest-bearing debt / market cap must be <= 33%
+  - Cash and interest-bearing securities / market cap must be <= 33%
+
+Company A data:
+- Core business: cloud software
+- Revenue mix: 94% software subscriptions, 6% treasury interest
+- Interest-bearing debt / market cap: 24%
+- Cash and interest-bearing securities / market cap: 38%
+
+Question: Is Company A compliant under this policy?
+```
+
+Output:
+```
+Not compliant under the stated policy.
+
+Reasoning:
+1. Business activity screen passes: cloud software is a permissible core activity.
+2. Debt ratio passes: 24% <= 33%.
+3. Cash/interest-bearing securities ratio fails: 38% > 33%.
+
+Conclusion: Company A fails one mandatory financial ratio screen, so it is not compliant.
+```
+
+### Example 2:
+
+Input:
+```
+Policy for purification:
+- If an otherwise-compliant stock has incidental non-permissible income, donate that percentage of dividend income to purification.
+
+Investor received:
+- Dividend: $1,250
+- Non-permissible income ratio reported by screening provider: 4.8%
+
+Question: How much should be purified?
+```
+
+Output:
+```
+Purification amount = 4.8% of $1,250 = $60.00.
+
+Calculation:
+- 0.048 * 1250 = 60
+
+Conclusion: Donate $60.00 as purification.
+```
+
+### Example 3:
+
+Input:
+```
+Choose the more Shariah-aligned financing structure based on contract form:
+
+Option A:
+- Conventional loan
+- Principal guaranteed
+- Fixed 8% annual interest payment
+
+Option B:
+- Musharakah partnership
+- Capital contributed by both parties
+- Profit sharing at pre-agreed ratio
+- Loss sharing proportional to capital contribution
+
+Question: Which option is more aligned and why?
+```
+
+Output:
+```
+Option B is more Shariah-aligned.
+
+Reasoning:
+1. Option A is an interest-based debt contract with fixed return on principal, which conflicts with riba prohibition.
+2. Option B is equity-like risk sharing (profit-and-loss sharing), which matches core Islamic finance principles.
+
+Conclusion: Option B is the compliant structure among the two.
+```
+
+### Example 4:
+
+Input:
+```
+A DeFi vault advertises "halal yield". Terms:
+- User deposits stablecoins.
+- Protocol lends to margin traders and charges variable interest.
+- Vault pays depositors from collected lending interest minus fees.
+- No ownership in real assets; returns come from lending spread.
+
+Question: Based only on these terms, is the yield source likely compliant? Explain.
+```
+
+Output:
+```
+Likely not compliant based on the stated mechanism.
+
+Reasoning:
+1. Return source is lending interest from margin borrowing.
+2. Depositor payout is directly derived from interest spread, not trade or asset profit-sharing.
+3. Structure appears debt-interest based rather than partnership/asset-backed profit model.
+
+Conclusion: This setup is likely non-compliant unless the underlying return mechanism is materially restructured.
+```
+
+## Tags:
+- Islamic Finance
+- Halal Compliance
+- Financial Screening
+- Ethical Reasoning
+- Risk Assessment