{ "experiment": "8-5", "executed_at": "2026-08-02T04:39:54.499339+00:00", "execution_mode": "real_api_coding_agent_plus_model_external_release_harness", "provider": "openrouter", "model": "openai/gpt-5.6-sol", "seed": 8501, "input_artifacts": { "stable_sha256": "fcd37db6ebb19ed2e2492f086365a9f8addfcc4410242151185a1481d130041a", "trajectory_sha256": "1e4664c40e99a5fcba2e9462226d7c32b611c573be9f9ba479ed2d26f844b0c2", "validator_sha256_before_generation": "8c354d347b9d5423568205ebe7a5905dd580955756238674d648b9e00e2f6bd5", "validator_sha256_after_generation": "8c354d347b9d5423568205ebe7a5905dd580955756238674d648b9e00e2f6bd5", "trusted_surface_sha256_before": { "evolution.py": "8c354d347b9d5423568205ebe7a5905dd580955756238674d648b9e00e2f6bd5", "candidate_sandbox.py": "0fdd0576479c86482d8944050c2dc8a4d92c9eb696abaff4982bf1ad8b072fb8", "sandbox_runner.py": "bc971dfa909758152ccad386096841dd30a68f4621be6c8d9650a51d2e8c46eb", "Dockerfile.sandbox": "8c71105f404373a92cdd5923a894b05e1358ab42873d08d3d349a9fd3d2a1ade" }, "trusted_surface_sha256_after": { "evolution.py": "8c354d347b9d5423568205ebe7a5905dd580955756238674d648b9e00e2f6bd5", "candidate_sandbox.py": "0fdd0576479c86482d8944050c2dc8a4d92c9eb696abaff4982bf1ad8b072fb8", "sandbox_runner.py": "bc971dfa909758152ccad386096841dd30a68f4621be6c8d9650a51d2e8c46eb", "Dockerfile.sandbox": "8c71105f404373a92cdd5923a894b05e1358ab42873d08d3d349a9fd3d2a1ade" } }, "candidate_sandbox": { "image": "ai-agent-book/self-modifying-agent-sandbox:2548a1de2baf", "network": "none", "root_filesystem": "read_only", "user": "65534:65534", "memory": "64m", "cpus": 0.5, "wall_clock_timeout_seconds": 8.0 }, "diagnosis": { "change_required": true, "target": "stable/retry_policy.py", "target_component": "retry_and_circuit_breaker_control", "source_case_ids": [ "run-payment-001", "run-payment-002" ], "source_trajectories": [ { "id": "run-payment-001", "trajectory_sha256": "4a0b38498b006bf988279b0ff7984f04245db21ee0668986a49f3ca3f4969008", "evidence": "The same declined payment was submitted four times." }, { "id": "run-payment-002", "trajectory_sha256": "6407eb8005fb39702005d553963405329607b34e67acbb18901c79060dbe1e59", "evidence": "A second task repeated the identical non-retryable call three times." } ], "patterns": [ { "cluster_id": "charge_card:PAYMENT_DECLINED", "tool": "charge_card", "error_code": "PAYMENT_DECLINED", "source_case_ids": [ "run-payment-001", "run-payment-002" ], "cross_trajectory_support": 2, "total_redundant_calls": 5 } ], "reason": "The deterministic control policy ignores retryable=false and does not open the circuit for permanent errors. The root cause belongs in retry/circuit-breaker code, not a prompt.", "change_contract": { "expected_fix": [ "non-retryable tool-call attempts fall to one", "the circuit opens on the first permanent failure" ], "potential_regressions": [ "temporary timeouts stop retrying", "the five-failure circuit threshold changes for retryable errors", "public function signatures change" ] } }, "rejected_history_given_to_coding_agent": [ { "candidate_sha256": "824bbfb244a7b17ac835706be588542a63ad03e0d737d6c9d5da719c969652d2", "failed_checks": [ "temporary_recovery", "old_task_regression", "canary_ready" ], "rejection_reason": "failed gates: temporary_recovery, old_task_regression, canary_ready", "failure": "disabled temporary-timeout retries" } ], "behavior_metrics": { "stable_buggy_baseline": { "mean_nonretryable_calls": 3.5, "temporary_error_recovery_rate": 1.0, "old_task_regressions": 0 }, "deterministic": { "mean_nonretryable_calls": 1.0, "temporary_error_recovery_rate": 1.0, "old_task_regressions": 0 }, "real_llm": { "mean_nonretryable_calls": 1.0, "temporary_error_recovery_rate": 1.0, "old_task_regressions": 0 }, "rejected_control": { "mean_nonretryable_calls": 1.0, "temporary_error_recovery_rate": 0.0, "old_task_regressions": 1 } }, "comparison": { "deterministic": { "decision": "release_to_canary", "checks": { "static_compile": true, "security_scan": true, "sandbox_execution": true, "public_api_compatible": true, "failure_replay": true, "nonretryable_circuit": true, "temporary_recovery": true, "old_task_regression": true, "canary_ready": true, "rollback_ready": true, "protected_surfaces_unchanged": true }, "patch_size": { "added_lines": 7, "deleted_lines": 3, "changed_lines": 10 }, "behavior": { "mean_nonretryable_calls": 1.0, "temporary_error_recovery_rate": 1.0, "old_task_regressions": 0 } }, "real_llm": { "decision": "release_to_canary", "checks": { "static_compile": true, "security_scan": true, "sandbox_execution": true, "public_api_compatible": true, "failure_replay": true, "nonretryable_circuit": true, "temporary_recovery": true, "old_task_regression": true, "canary_ready": true, "rollback_ready": true, "protected_surfaces_unchanged": true }, "patch_size": { "added_lines": 7, "deleted_lines": 3, "changed_lines": 10 }, "behavior": { "mean_nonretryable_calls": 1.0, "temporary_error_recovery_rate": 1.0, "old_task_regressions": 0 } }, "rejected_control": { "decision": "reject_candidate", "checks": { "static_compile": true, "security_scan": true, "sandbox_execution": true, "public_api_compatible": true, "failure_replay": true, "nonretryable_circuit": true, "temporary_recovery": false, "old_task_regression": false, "canary_ready": false, "rollback_ready": true, "protected_surfaces_unchanged": true }, "patch_size": { "added_lines": 6, "deleted_lines": 4, "changed_lines": 10 }, "behavior": { "mean_nonretryable_calls": 1.0, "temporary_error_recovery_rate": 0.0, "old_task_regressions": 1 } } }, "manifests": { "deterministic": { "artifact_type": "agent_control_code_patch", "failure_cluster": [ { "cluster_id": "charge_card:PAYMENT_DECLINED", "tool": "charge_card", "error_code": "PAYMENT_DECLINED", "source_case_ids": [ "run-payment-001", "run-payment-002" ], "cross_trajectory_support": 2, "total_redundant_calls": 5 } ], "source_trajectories": [ { "id": "run-payment-001", "trajectory_sha256": "4a0b38498b006bf988279b0ff7984f04245db21ee0668986a49f3ca3f4969008", "evidence": "The same declined payment was submitted four times." }, { "id": "run-payment-002", "trajectory_sha256": "6407eb8005fb39702005d553963405329607b34e67acbb18901c79060dbe1e59", "evidence": "A second task repeated the identical non-retryable call three times." } ], "inferred_root_cause": "The deterministic control policy ignores retryable=false and does not open the circuit for permanent errors. The root cause belongs in retry/circuit-breaker code, not a prompt.", "target_component": "retry_and_circuit_breaker_control", "target_file": "stable/retry_policy.py", "code_diff": "--- stable/retry_policy.py\n+++ candidate/retry_policy.py\n@@ -1,16 +1,20 @@\n \"\"\"Stable version 1.0.0. It intentionally contains the reproduced bug.\"\"\"\n \n-VERSION = \"1.0.0\"\n+VERSION = \"1.1.0-candidate\"\n MAX_RETRIES = 3\n CIRCUIT_BREAKER_THRESHOLD = 5\n-NON_RETRYABLE_CODES = {\"AUTH_DENIED\", \"INVALID_ARGUMENT\"}\n+NON_RETRYABLE_CODES = {\"AUTH_DENIED\", \"INVALID_ARGUMENT\", \"PAYMENT_DECLINED\"}\n \n \n def should_retry(error_code, retryable, attempt):\n \"\"\"Return whether another tool call should be attempted.\"\"\"\n+ if not retryable or error_code in NON_RETRYABLE_CODES:\n+ return False\n return attempt < MAX_RETRIES\n \n \n def should_open_circuit(consecutive_failures, *, error_code=\"\", retryable=True):\n- \"\"\"Open after repeated failures.\"\"\"\n+ \"\"\"Open immediately for permanent errors; otherwise use the threshold.\"\"\"\n+ if not retryable or error_code in NON_RETRYABLE_CODES:\n+ return consecutive_failures >= 1\n return consecutive_failures >= CIRCUIT_BREAKER_THRESHOLD\n", "impact_prediction": { "non_retryable_calls": { "before": "up to 4", "after": 1 }, "temporary_timeout_recovery_rate": { "before": 1.0, "after": 1.0 } }, "expected_fix": [ "non-retryable tool-call attempts fall to one", "the circuit opens on the first permanent failure" ], "potential_regressions": [ "temporary timeouts stop retrying", "the five-failure circuit threshold changes for retryable errors", "public function signatures change" ], "stable_version": "fcd37db6ebb1", "stable_sha256": "fcd37db6ebb19ed2e2492f086365a9f8addfcc4410242151185a1481d130041a", "candidate_version": "b0fb4d1caf96", "candidate_sha256": "b0fb4d1caf96c7aca16fc53d1dcf518345ea1a5b0aef9b60168f24534acf552c", "rollback_version": "fcd37db6ebb1", "rollback_sha256": "fcd37db6ebb19ed2e2492f086365a9f8addfcc4410242151185a1481d130041a", "diff": "--- stable/retry_policy.py\n+++ candidate/retry_policy.py\n@@ -1,16 +1,20 @@\n \"\"\"Stable version 1.0.0. It intentionally contains the reproduced bug.\"\"\"\n \n-VERSION = \"1.0.0\"\n+VERSION = \"1.1.0-candidate\"\n MAX_RETRIES = 3\n CIRCUIT_BREAKER_THRESHOLD = 5\n-NON_RETRYABLE_CODES = {\"AUTH_DENIED\", \"INVALID_ARGUMENT\"}\n+NON_RETRYABLE_CODES = {\"AUTH_DENIED\", \"INVALID_ARGUMENT\", \"PAYMENT_DECLINED\"}\n \n \n def should_retry(error_code, retryable, attempt):\n \"\"\"Return whether another tool call should be attempted.\"\"\"\n+ if not retryable or error_code in NON_RETRYABLE_CODES:\n+ return False\n return attempt < MAX_RETRIES\n \n \n def should_open_circuit(consecutive_failures, *, error_code=\"\", retryable=True):\n- \"\"\"Open after repeated failures.\"\"\"\n+ \"\"\"Open immediately for permanent errors; otherwise use the threshold.\"\"\"\n+ if not retryable or error_code in NON_RETRYABLE_CODES:\n+ return consecutive_failures >= 1\n return consecutive_failures >= CIRCUIT_BREAKER_THRESHOLD\n", "patch_size": { "added_lines": 7, "deleted_lines": 3, "changed_lines": 10 }, "checks": { "static_compile": true, "security_scan": true, "sandbox_execution": true, "public_api_compatible": true, "failure_replay": true, "nonretryable_circuit": true, "temporary_recovery": true, "old_task_regression": true, "canary_ready": true, "rollback_ready": true, "protected_surfaces_unchanged": true }, "failed_checks": [], "canary_gate": { "eligible": true, "scope": "shadow traffic only; stable remains unchanged", "rollback_trigger": "any non-retryable repeat or temporary-recovery regression" }, "rollback_gate": { "artifact_hash_matches_stable": true, "rollback_version": "fcd37db6ebb1" }, "provenance": { "generator": "deterministic", "model": null, "api_calls": 0 }, "decision": "release_to_canary", "rejection_reason": null }, "real_llm": { "artifact_type": "agent_control_code_patch", "failure_cluster": [ { "cluster_id": "charge_card:PAYMENT_DECLINED", "tool": "charge_card", "error_code": "PAYMENT_DECLINED", "source_case_ids": [ "run-payment-001", "run-payment-002" ], "cross_trajectory_support": 2, "total_redundant_calls": 5 } ], "source_trajectories": [ { "id": "run-payment-001", "trajectory_sha256": "4a0b38498b006bf988279b0ff7984f04245db21ee0668986a49f3ca3f4969008", "evidence": "The same declined payment was submitted four times." }, { "id": "run-payment-002", "trajectory_sha256": "6407eb8005fb39702005d553963405329607b34e67acbb18901c79060dbe1e59", "evidence": "A second task repeated the identical non-retryable call three times." } ], "inferred_root_cause": "The deterministic control policy ignores retryable=false and does not open the circuit for permanent errors. The root cause belongs in retry/circuit-breaker code, not a prompt.", "target_component": "retry_and_circuit_breaker_control", "target_file": "stable/retry_policy.py", "code_diff": "--- stable/retry_policy.py\n+++ candidate/retry_policy.py\n@@ -1,6 +1,6 @@\n-\"\"\"Stable version 1.0.0. It intentionally contains the reproduced bug.\"\"\"\n+\"\"\"Candidate version 1.0.1-rc.1 with permanent-failure handling.\"\"\"\n \n-VERSION = \"1.0.0\"\n+VERSION = \"1.0.1-rc.1\"\n MAX_RETRIES = 3\n CIRCUIT_BREAKER_THRESHOLD = 5\n NON_RETRYABLE_CODES = {\"AUTH_DENIED\", \"INVALID_ARGUMENT\"}\n@@ -8,9 +8,13 @@\n \n def should_retry(error_code, retryable, attempt):\n \"\"\"Return whether another tool call should be attempted.\"\"\"\n+ if not retryable or error_code in NON_RETRYABLE_CODES:\n+ return False\n return attempt < MAX_RETRIES\n \n \n def should_open_circuit(consecutive_failures, *, error_code=\"\", retryable=True):\n- \"\"\"Open after repeated failures.\"\"\"\n+ \"\"\"Open immediately for permanent failures or after repeated temporary failures.\"\"\"\n+ if not retryable or error_code in NON_RETRYABLE_CODES:\n+ return consecutive_failures >= 1\n return consecutive_failures >= CIRCUIT_BREAKER_THRESHOLD\n", "impact_prediction": { "non_retryable_calls": { "before": "up to 4", "after": 1 }, "temporary_timeout_recovery_rate": { "before": 1.0, "after": 1.0 } }, "expected_fix": [ "non-retryable tool-call attempts fall to one", "the circuit opens on the first permanent failure" ], "potential_regressions": [ "temporary timeouts stop retrying", "the five-failure circuit threshold changes for retryable errors", "public function signatures change" ], "stable_version": "fcd37db6ebb1", "stable_sha256": "fcd37db6ebb19ed2e2492f086365a9f8addfcc4410242151185a1481d130041a", "candidate_version": "d6e79810003e", "candidate_sha256": "d6e79810003e7d5f3e8d43ace0688e38033b08a4752bb0dfb9260d9bbe976b8f", "rollback_version": "fcd37db6ebb1", "rollback_sha256": "fcd37db6ebb19ed2e2492f086365a9f8addfcc4410242151185a1481d130041a", "diff": "--- stable/retry_policy.py\n+++ candidate/retry_policy.py\n@@ -1,6 +1,6 @@\n-\"\"\"Stable version 1.0.0. It intentionally contains the reproduced bug.\"\"\"\n+\"\"\"Candidate version 1.0.1-rc.1 with permanent-failure handling.\"\"\"\n \n-VERSION = \"1.0.0\"\n+VERSION = \"1.0.1-rc.1\"\n MAX_RETRIES = 3\n CIRCUIT_BREAKER_THRESHOLD = 5\n NON_RETRYABLE_CODES = {\"AUTH_DENIED\", \"INVALID_ARGUMENT\"}\n@@ -8,9 +8,13 @@\n \n def should_retry(error_code, retryable, attempt):\n \"\"\"Return whether another tool call should be attempted.\"\"\"\n+ if not retryable or error_code in NON_RETRYABLE_CODES:\n+ return False\n return attempt < MAX_RETRIES\n \n \n def should_open_circuit(consecutive_failures, *, error_code=\"\", retryable=True):\n- \"\"\"Open after repeated failures.\"\"\"\n+ \"\"\"Open immediately for permanent failures or after repeated temporary failures.\"\"\"\n+ if not retryable or error_code in NON_RETRYABLE_CODES:\n+ return consecutive_failures >= 1\n return consecutive_failures >= CIRCUIT_BREAKER_THRESHOLD\n", "patch_size": { "added_lines": 7, "deleted_lines": 3, "changed_lines": 10 }, "checks": { "static_compile": true, "security_scan": true, "sandbox_execution": true, "public_api_compatible": true, "failure_replay": true, "nonretryable_circuit": true, "temporary_recovery": true, "old_task_regression": true, "canary_ready": true, "rollback_ready": true, "protected_surfaces_unchanged": true }, "failed_checks": [], "canary_gate": { "eligible": true, "scope": "shadow traffic only; stable remains unchanged", "rollback_trigger": "any non-retryable repeat or temporary-recovery regression" }, "rollback_gate": { "artifact_hash_matches_stable": true, "rollback_version": "fcd37db6ebb1" }, "provenance": { "generator": "real_llm_coding_agent", "model": "openai/gpt-5.6-sol", "provider": "openrouter", "seed": 8501, "api_calls": 1, "receipt": { "backend": { "provider": "openrouter", "endpoint": "https://openrouter.ai/api/v1/chat/completions", "credential_env": "OPENROUTER_API_KEY", "model": "openai/gpt-5.6-sol", "credential_value_recorded": false }, "request": { "model": "openai/gpt-5.6-sol", "messages": [ { "role": "user", "content": "You are the Coding Agent in a controlled self-modification pipeline.\n\nModify only the supplied retry-policy module. Preserve both public function\nsignatures and retry behavior for temporary failures. Permanent failures\n(retryable=false or a listed permanent code) must not be retried and must open\nthe circuit on the first occurrence. Update VERSION to a candidate version.\nDo not import modules, access files, or alter validation/release logic.\n\nBefore the source, predict the intended impact. Return JSON only:\n{\"impact_prediction\": {\"non_retryable_calls\": {\"before\": \"up to 4\", \"after\": 1},\n\"temporary_timeout_recovery_rate\": {\"before\": 1.0, \"after\": 1.0}},\n\"source\": \"the complete Python module\"}\n\nFailure diagnosis:\n{\n \"change_required\": true,\n \"target\": \"stable/retry_policy.py\",\n \"target_component\": \"retry_and_circuit_breaker_control\",\n \"source_case_ids\": [\n \"run-payment-001\",\n \"run-payment-002\"\n ],\n \"source_trajectories\": [\n {\n \"id\": \"run-payment-001\",\n \"trajectory_sha256\": \"4a0b38498b006bf988279b0ff7984f04245db21ee0668986a49f3ca3f4969008\",\n \"evidence\": \"The same declined payment was submitted four times.\"\n },\n {\n \"id\": \"run-payment-002\",\n \"trajectory_sha256\": \"6407eb8005fb39702005d553963405329607b34e67acbb18901c79060dbe1e59\",\n \"evidence\": \"A second task repeated the identical non-retryable call three times.\"\n }\n ],\n \"patterns\": [\n {\n \"cluster_id\": \"charge_card:PAYMENT_DECLINED\",\n \"tool\": \"charge_card\",\n \"error_code\": \"PAYMENT_DECLINED\",\n \"source_case_ids\": [\n \"run-payment-001\",\n \"run-payment-002\"\n ],\n \"cross_trajectory_support\": 2,\n \"total_redundant_calls\": 5\n }\n ],\n \"reason\": \"The deterministic control policy ignores retryable=false and does not open the circuit for permanent errors. The root cause belongs in retry/circuit-breaker code, not a prompt.\",\n \"change_contract\": {\n \"expected_fix\": [\n \"non-retryable tool-call attempts fall to one\",\n \"the circuit opens on the first permanent failure\"\n ],\n \"potential_regressions\": [\n \"temporary timeouts stop retrying\",\n \"the five-failure circuit threshold changes for retryable errors\",\n \"public function signatures change\"\n ]\n }\n}\n\nPreviously rejected candidates (do not repeat their failure):\n[\n {\n \"candidate_sha256\": \"824bbfb244a7b17ac835706be588542a63ad03e0d737d6c9d5da719c969652d2\",\n \"failed_checks\": [\n \"temporary_recovery\",\n \"old_task_regression\",\n \"canary_ready\"\n ],\n \"rejection_reason\": \"failed gates: temporary_recovery, old_task_regression, canary_ready\",\n \"failure\": \"disabled temporary-timeout retries\"\n }\n]\n\nStable module:\n\"\"\"Stable version 1.0.0. It intentionally contains the reproduced bug.\"\"\"\n\nVERSION = \"1.0.0\"\nMAX_RETRIES = 3\nCIRCUIT_BREAKER_THRESHOLD = 5\nNON_RETRYABLE_CODES = {\"AUTH_DENIED\", \"INVALID_ARGUMENT\"}\n\n\ndef should_retry(error_code, retryable, attempt):\n \"\"\"Return whether another tool call should be attempted.\"\"\"\n return attempt < MAX_RETRIES\n\n\ndef should_open_circuit(consecutive_failures, *, error_code=\"\", retryable=True):\n \"\"\"Open after repeated failures.\"\"\"\n return consecutive_failures >= CIRCUIT_BREAKER_THRESHOLD\n\n" } ], "temperature": 0, "seed": 8501, "max_tokens": 1400, "response_format": { "type": "json_object" } }, "response": { "id": "gen-1785645586-58eflec0vxlXmqNTlbkd", "choices": [ { "finish_reason": "stop", "index": 0, "message": { "content": "{\"impact_prediction\":{\"non_retryable_calls\":{\"before\":\"up to 4\",\"after\":1},\"temporary_timeout_recovery_rate\":{\"before\":1.0,\"after\":1.0}},\"source\":\"\\\"\\\"\\\"Candidate version 1.0.1-rc.1 with permanent-failure handling.\\\"\\\"\\\"\\n\\nVERSION = \\\"1.0.1-rc.1\\\"\\nMAX_RETRIES = 3\\nCIRCUIT_BREAKER_THRESHOLD = 5\\nNON_RETRYABLE_CODES = {\\\"AUTH_DENIED\\\", \\\"INVALID_ARGUMENT\\\"}\\n\\n\\ndef should_retry(error_code, retryable, attempt):\\n \\\"\\\"\\\"Return whether another tool call should be attempted.\\\"\\\"\\\"\\n if not retryable or error_code in NON_RETRYABLE_CODES:\\n return False\\n return attempt < MAX_RETRIES\\n\\n\\ndef should_open_circuit(consecutive_failures, *, error_code=\\\"\\\", retryable=True):\\n \\\"\\\"\\\"Open immediately for permanent failures or after repeated temporary failures.\\\"\\\"\\\"\\n if not retryable or error_code in NON_RETRYABLE_CODES:\\n return consecutive_failures >= 1\\n return consecutive_failures >= CIRCUIT_BREAKER_THRESHOLD\\n\"}", "role": "assistant", "reasoning_details": [ { "type": "reasoning.encrypted", "data": 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"format": "openai-responses-v1", "id": "rs_09bdf9a0a95f7f05016a6eca1367a8819ebed6d613bbe9886e", "index": 0 } ] }, "native_finish_reason": "completed" } ], "created": 1785645586, "model": "openai/gpt-5.6-sol", "object": "chat.completion", "service_tier": "default", "usage": { "completion_tokens": 392, "prompt_tokens": 839, "total_tokens": 1231, "completion_tokens_details": { "audio_tokens": 0, "reasoning_tokens": 128, "image_tokens": 0 }, "prompt_tokens_details": { "audio_tokens": 0, "cached_tokens": 0, "cache_write_tokens": 0, "video_tokens": 0 }, "cost": 0.015955, "is_byok": false, "cost_details": { "upstream_inference_cost": 0.015955, "upstream_inference_prompt_cost": 0.004195, "upstream_inference_completions_cost": 0.01176 } }, "provider": "OpenAI" }, "request_sha256": "80938ad7618b7a10cbf6a441221678a0e08a3acd88e03a9277b5b48c767b37b9", "response_sha256": "0547761669dd89448a523da688652d900c055c104d208c20681a0055e19feeb3", "elapsed_seconds": 4.693797, "usage": { "prompt_tokens": 839, "completion_tokens": 392, "total_tokens": 1231, "provider_reported_cost_usd": 0.015955, "cost_qualification": "provider-native usage.cost" } } }, "decision": "release_to_canary", "rejection_reason": null }, "rejected_control": { "artifact_type": "agent_control_code_patch", "failure_cluster": [ { "cluster_id": "charge_card:PAYMENT_DECLINED", "tool": "charge_card", "error_code": "PAYMENT_DECLINED", "source_case_ids": [ "run-payment-001", "run-payment-002" ], "cross_trajectory_support": 2, "total_redundant_calls": 5 } ], "source_trajectories": [ { "id": "run-payment-001", "trajectory_sha256": "4a0b38498b006bf988279b0ff7984f04245db21ee0668986a49f3ca3f4969008", "evidence": "The same declined payment was submitted four times." }, { "id": "run-payment-002", "trajectory_sha256": "6407eb8005fb39702005d553963405329607b34e67acbb18901c79060dbe1e59", "evidence": "A second task repeated the identical non-retryable call three times." } ], "inferred_root_cause": "The deterministic control policy ignores retryable=false and does not open the circuit for permanent errors. The root cause belongs in retry/circuit-breaker code, not a prompt.", "target_component": "retry_and_circuit_breaker_control", "target_file": "stable/retry_policy.py", "code_diff": "--- stable/retry_policy.py\n+++ candidate/retry_policy.py\n@@ -1,16 +1,18 @@\n \"\"\"Stable version 1.0.0. It intentionally contains the reproduced bug.\"\"\"\n \n-VERSION = \"1.0.0\"\n+VERSION = \"1.0.1-rejected\"\n MAX_RETRIES = 3\n CIRCUIT_BREAKER_THRESHOLD = 5\n NON_RETRYABLE_CODES = {\"AUTH_DENIED\", \"INVALID_ARGUMENT\"}\n \n \n def should_retry(error_code, retryable, attempt):\n- \"\"\"Return whether another tool call should be attempted.\"\"\"\n- return attempt < MAX_RETRIES\n+ \"\"\"Incorrect over-broad fix retained as a rejected candidate.\"\"\"\n+ return False\n \n \n def should_open_circuit(consecutive_failures, *, error_code=\"\", retryable=True):\n- \"\"\"Open after repeated failures.\"\"\"\n+ \"\"\"Open immediately for permanent errors; otherwise use the threshold.\"\"\"\n+ if not retryable or error_code in NON_RETRYABLE_CODES:\n+ return consecutive_failures >= 1\n return consecutive_failures >= CIRCUIT_BREAKER_THRESHOLD\n", "impact_prediction": { "non_retryable_calls": { "after": 1 }, "temporary_timeout_recovery_rate": { "after": 0.0 } }, "expected_fix": [ "non-retryable tool-call attempts fall to one", "the circuit opens on the first permanent failure" ], "potential_regressions": [ "temporary timeouts stop retrying", "the five-failure circuit threshold changes for retryable errors", "public function signatures change" ], "stable_version": "fcd37db6ebb1", "stable_sha256": "fcd37db6ebb19ed2e2492f086365a9f8addfcc4410242151185a1481d130041a", "candidate_version": "824bbfb244a7", "candidate_sha256": "824bbfb244a7b17ac835706be588542a63ad03e0d737d6c9d5da719c969652d2", "rollback_version": "fcd37db6ebb1", "rollback_sha256": "fcd37db6ebb19ed2e2492f086365a9f8addfcc4410242151185a1481d130041a", "diff": "--- stable/retry_policy.py\n+++ candidate/retry_policy.py\n@@ -1,16 +1,18 @@\n \"\"\"Stable version 1.0.0. It intentionally contains the reproduced bug.\"\"\"\n \n-VERSION = \"1.0.0\"\n+VERSION = \"1.0.1-rejected\"\n MAX_RETRIES = 3\n CIRCUIT_BREAKER_THRESHOLD = 5\n NON_RETRYABLE_CODES = {\"AUTH_DENIED\", \"INVALID_ARGUMENT\"}\n \n \n def should_retry(error_code, retryable, attempt):\n- \"\"\"Return whether another tool call should be attempted.\"\"\"\n- return attempt < MAX_RETRIES\n+ \"\"\"Incorrect over-broad fix retained as a rejected candidate.\"\"\"\n+ return False\n \n \n def should_open_circuit(consecutive_failures, *, error_code=\"\", retryable=True):\n- \"\"\"Open after repeated failures.\"\"\"\n+ \"\"\"Open immediately for permanent errors; otherwise use the threshold.\"\"\"\n+ if not retryable or error_code in NON_RETRYABLE_CODES:\n+ return consecutive_failures >= 1\n return consecutive_failures >= CIRCUIT_BREAKER_THRESHOLD\n", "patch_size": { "added_lines": 6, "deleted_lines": 4, "changed_lines": 10 }, "checks": { "static_compile": true, "security_scan": true, "sandbox_execution": true, "public_api_compatible": true, "failure_replay": true, "nonretryable_circuit": true, "temporary_recovery": false, "old_task_regression": false, "canary_ready": false, "rollback_ready": true, "protected_surfaces_unchanged": true }, "failed_checks": [ "temporary_recovery", "old_task_regression", "canary_ready" ], "canary_gate": { "eligible": false, "scope": "shadow traffic only; stable remains unchanged", "rollback_trigger": "any non-retryable repeat or temporary-recovery regression" }, "rollback_gate": { "artifact_hash_matches_stable": true, "rollback_version": "fcd37db6ebb1" }, "provenance": { "generator": "negative_control", "api_calls": 0 }, "decision": "reject_candidate", "rejection_reason": "failed gates: temporary_recovery, old_task_regression, canary_ready" } }, "raw_api_receipts": [ { "backend": { "provider": "openrouter", "endpoint": "https://openrouter.ai/api/v1/chat/completions", "credential_env": "OPENROUTER_API_KEY", "model": "openai/gpt-5.6-sol", "credential_value_recorded": false }, "request": { "model": "openai/gpt-5.6-sol", "messages": [ { "role": "user", "content": "You are the Coding Agent in a controlled self-modification pipeline.\n\nModify only the supplied retry-policy module. Preserve both public function\nsignatures and retry behavior for temporary failures. Permanent failures\n(retryable=false or a listed permanent code) must not be retried and must open\nthe circuit on the first occurrence. Update VERSION to a candidate version.\nDo not import modules, access files, or alter validation/release logic.\n\nBefore the source, predict the intended impact. Return JSON only:\n{\"impact_prediction\": {\"non_retryable_calls\": {\"before\": \"up to 4\", \"after\": 1},\n\"temporary_timeout_recovery_rate\": {\"before\": 1.0, \"after\": 1.0}},\n\"source\": \"the complete Python module\"}\n\nFailure diagnosis:\n{\n \"change_required\": true,\n \"target\": \"stable/retry_policy.py\",\n \"target_component\": \"retry_and_circuit_breaker_control\",\n \"source_case_ids\": [\n \"run-payment-001\",\n \"run-payment-002\"\n ],\n \"source_trajectories\": [\n {\n \"id\": \"run-payment-001\",\n \"trajectory_sha256\": \"4a0b38498b006bf988279b0ff7984f04245db21ee0668986a49f3ca3f4969008\",\n \"evidence\": \"The same declined payment was submitted four times.\"\n },\n {\n \"id\": \"run-payment-002\",\n \"trajectory_sha256\": \"6407eb8005fb39702005d553963405329607b34e67acbb18901c79060dbe1e59\",\n \"evidence\": \"A second task repeated the identical non-retryable call three times.\"\n }\n ],\n \"patterns\": [\n {\n \"cluster_id\": \"charge_card:PAYMENT_DECLINED\",\n \"tool\": \"charge_card\",\n \"error_code\": \"PAYMENT_DECLINED\",\n \"source_case_ids\": [\n \"run-payment-001\",\n \"run-payment-002\"\n ],\n \"cross_trajectory_support\": 2,\n \"total_redundant_calls\": 5\n }\n ],\n \"reason\": \"The deterministic control policy ignores retryable=false and does not open the circuit for permanent errors. The root cause belongs in retry/circuit-breaker code, not a prompt.\",\n \"change_contract\": {\n \"expected_fix\": [\n \"non-retryable tool-call attempts fall to one\",\n \"the circuit opens on the first permanent failure\"\n ],\n \"potential_regressions\": [\n \"temporary timeouts stop retrying\",\n \"the five-failure circuit threshold changes for retryable errors\",\n \"public function signatures change\"\n ]\n }\n}\n\nPreviously rejected candidates (do not repeat their failure):\n[\n {\n \"candidate_sha256\": \"824bbfb244a7b17ac835706be588542a63ad03e0d737d6c9d5da719c969652d2\",\n \"failed_checks\": [\n \"temporary_recovery\",\n \"old_task_regression\",\n \"canary_ready\"\n ],\n \"rejection_reason\": \"failed gates: temporary_recovery, old_task_regression, canary_ready\",\n \"failure\": \"disabled temporary-timeout retries\"\n }\n]\n\nStable module:\n\"\"\"Stable version 1.0.0. It intentionally contains the reproduced bug.\"\"\"\n\nVERSION = \"1.0.0\"\nMAX_RETRIES = 3\nCIRCUIT_BREAKER_THRESHOLD = 5\nNON_RETRYABLE_CODES = {\"AUTH_DENIED\", \"INVALID_ARGUMENT\"}\n\n\ndef should_retry(error_code, retryable, attempt):\n \"\"\"Return whether another tool call should be attempted.\"\"\"\n return attempt < MAX_RETRIES\n\n\ndef should_open_circuit(consecutive_failures, *, error_code=\"\", retryable=True):\n \"\"\"Open after repeated failures.\"\"\"\n return consecutive_failures >= CIRCUIT_BREAKER_THRESHOLD\n\n" } ], "temperature": 0, "seed": 8501, "max_tokens": 1400, "response_format": { "type": "json_object" } }, "response": { "id": "gen-1785645586-58eflec0vxlXmqNTlbkd", "choices": [ { "finish_reason": "stop", "index": 0, "message": { "content": "{\"impact_prediction\":{\"non_retryable_calls\":{\"before\":\"up to 4\",\"after\":1},\"temporary_timeout_recovery_rate\":{\"before\":1.0,\"after\":1.0}},\"source\":\"\\\"\\\"\\\"Candidate version 1.0.1-rc.1 with permanent-failure handling.\\\"\\\"\\\"\\n\\nVERSION = \\\"1.0.1-rc.1\\\"\\nMAX_RETRIES = 3\\nCIRCUIT_BREAKER_THRESHOLD = 5\\nNON_RETRYABLE_CODES = {\\\"AUTH_DENIED\\\", \\\"INVALID_ARGUMENT\\\"}\\n\\n\\ndef should_retry(error_code, retryable, attempt):\\n \\\"\\\"\\\"Return whether another tool call should be attempted.\\\"\\\"\\\"\\n if not retryable or error_code in NON_RETRYABLE_CODES:\\n return False\\n return attempt < MAX_RETRIES\\n\\n\\ndef should_open_circuit(consecutive_failures, *, error_code=\\\"\\\", retryable=True):\\n \\\"\\\"\\\"Open immediately for permanent failures or after repeated temporary failures.\\\"\\\"\\\"\\n if not retryable or error_code in NON_RETRYABLE_CODES:\\n return consecutive_failures >= 1\\n return consecutive_failures >= CIRCUIT_BREAKER_THRESHOLD\\n\"}", "role": "assistant", "reasoning_details": [ { "type": "reasoning.encrypted", "data": 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"format": "openai-responses-v1", "id": "rs_09bdf9a0a95f7f05016a6eca1367a8819ebed6d613bbe9886e", "index": 0 } ] }, "native_finish_reason": "completed" } ], "created": 1785645586, "model": "openai/gpt-5.6-sol", "object": "chat.completion", "service_tier": "default", "usage": { "completion_tokens": 392, "prompt_tokens": 839, "total_tokens": 1231, "completion_tokens_details": { "audio_tokens": 0, "reasoning_tokens": 128, "image_tokens": 0 }, "prompt_tokens_details": { "audio_tokens": 0, "cached_tokens": 0, "cache_write_tokens": 0, "video_tokens": 0 }, "cost": 0.015955, "is_byok": false, "cost_details": { "upstream_inference_cost": 0.015955, "upstream_inference_prompt_cost": 0.004195, "upstream_inference_completions_cost": 0.01176 } }, "provider": "OpenAI" }, "request_sha256": "80938ad7618b7a10cbf6a441221678a0e08a3acd88e03a9277b5b48c767b37b9", "response_sha256": "0547761669dd89448a523da688652d900c055c104d208c20681a0055e19feeb3", "elapsed_seconds": 4.693797, "usage": { "prompt_tokens": 839, "completion_tokens": 392, "total_tokens": 1231, "provider_reported_cost_usd": 0.015955, "cost_qualification": "provider-native usage.cost" } } ], "cost": { "prompt_tokens": 839, "completion_tokens": 392, "total_tokens": 1231, "provider_reported_cost_usd": 0.015955, "cost_qualification": "provider-native usage.cost" }, "candidate_acceptance_rate": 0.6666666666666666, "gates": { "cross_trajectory_support_met": true, "root_cause_targets_control_code": true, "real_coding_model_called": true, "impact_prediction_precedes_validation": true, "all_candidates_isolated": true, "trusted_surfaces_unchanged": true, "same_release_gate_for_both_generators": true, "deterministic_candidate_release_to_canary": true, "real_llm_candidate_release_to_canary": true, "known_bad_candidate_rejected_and_retained": true, "failure_replay_reduces_calls": true, "temporary_recovery_preserved": true, "old_task_regression_zero": true, "canary_only_not_production": true, "rollback_hash_pinned_to_stable": true, "release_manifest_fields_complete": true }, "accepted": true }