Forensic Summary
GitHub has published an evaluation of its Copilot agentic harness, detailing how the orchestration layer performs across multiple underlying models and coding tasks — effectively documenting the architecture of an autonomous, multi-step code generation and execution system. For defenders, this transparency reveals an orchestration surface where prompt injection, supply chain manipulation, and model-switching logic can be targeted across a broader set of model backends than previously understood. Security teams should treat the harness itself as a critical trust boundary, since compromising task routing or model selection logic could silently redirect agentic workflows to less-safe or adversary-controlled model endpoints.
Read the full technical deep-dive on Grid the Grey: https://gridthegrey.com/posts/first-look-github-copilot-agentic-harness-evaluated-across-models-and-tasks/
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