{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Repo: anthropics/defending-code-reference-harness","description":"Anthropic repo signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/d655a3de-1616-4e38-b9a0-27254762c1f0","json_url":"https://onlylabs.fyi/signals/d655a3de-1616-4e38-b9a0-27254762c1f0/signal.json","generated_at":"2026-06-11T02:41:56.837257+00:00","org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab","category_label":"Frontier lab","dossier_url":"https://onlylabs.fyi/labs/anthropic","dossier_json_url":"https://onlylabs.fyi/labs/anthropic/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/d655a3de-1616-4e38-b9a0-27254762c1f0","signal_json":"https://onlylabs.fyi/signals/d655a3de-1616-4e38-b9a0-27254762c1f0/signal.json","source":"https://github.com/anthropics/defending-code-reference-harness","lab_dossier":"https://onlylabs.fyi/labs/anthropic","lab_dossier_json":"https://onlylabs.fyi/labs/anthropic/dossier.json","analysis":"https://onlylabs.fyi/analysis/anthropic","analysis_json":"https://onlylabs.fyi/analysis/anthropic/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/anthropic/evidence.json","category":"https://onlylabs.fyi/frontier","category_json":"https://onlylabs.fyi/frontier.json","category_feed":"https://onlylabs.fyi/frontier/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json","topic":null,"topic_signals_json":null,"topic_feed":null,"data_business":null},"answer_pack":{"answer":"Anthropic published anthropics/defending-code-reference-harness (Python). 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For a write up of these learnings along with best practices, see the [accompanying blog post](https://claude.com/blog/using-llms-to-secure-source-code) (also available in [`blog-post.md`](docs/blog-post.md)). For a lightweight SDK-only walkthrough of the same recon → find → triage → report → patch loop, see the [companion cookbook](https://platform.claude.com/cookbook/claude-agent-sdk-06-the-vulnerability-detection-agent). 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