Copilot CLI: An Agent in the Terminal, Plan Mode, Sandboxing, Automation with `copilot -p` and ACP
copilot -p can exit with 0 while the answer is wrong: in Bookstore both runs with a local model returned 0, one printing a useless JSON fragment, the other bullets that are not in the commit. Installation, plan mode, --allow-tool and --deny-tool rules, sandboxing and --cloud, GitHub Actions with GITHUB_TOKEN and copilot-requests, the permission actionlint does not know, BYOK and an ACP client.
15 Nov 2026
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12 min
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7
