ai-agent-book 精选快照（<2MB 代码与文档，来自 github.com/bojieli/ai-agent-book）

chapter9/self-modifying-agent/test_real_evidence.py

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+import hashlib
+import json
+from pathlib import Path
+
+
+ROOT = Path(__file__).parent
+
+
+def test_canonical_real_coding_agent_evidence_closes_all_gates():
+    evidence = json.loads((ROOT / "validation" / "latest.json").read_text(encoding="utf-8"))
+    expected_sha = (ROOT / "validation" / "latest.sha256").read_text(encoding="utf-8").split()[0]
+    assert expected_sha == hashlib.sha256((ROOT / "validation" / "latest.json").read_bytes()).hexdigest()
+    assert evidence["execution_mode"] == "real_api_coding_agent_plus_model_external_release_harness"
+    assert evidence["accepted"] is True
+    assert all(evidence["gates"].values())
+    assert evidence["manifests"]["real_llm"]["decision"] == "release_to_canary"
+    assert evidence["manifests"]["deterministic"]["decision"] == "release_to_canary"
+    assert evidence["manifests"]["rejected_control"]["decision"] == "reject_candidate"
+    assert evidence["behavior_metrics"]["stable_buggy_baseline"]["mean_nonretryable_calls"] == 3.5
+    assert evidence["behavior_metrics"]["real_llm"]["mean_nonretryable_calls"] == 1.0
+    assert evidence["raw_api_receipts"][0]["response"]["id"]
+    stable = (ROOT / "stable" / "retry_policy.py").read_bytes()
+    assert evidence["input_artifacts"]["stable_sha256"] == hashlib.sha256(stable).hexdigest()
+    assert evidence["cost"]["total_tokens"] > 0
+    assert evidence["cost"]["provider_reported_cost_usd"] is None