4 posts
GitHub CLI’s Linux signing key expires Saturday 5 September 2026. Last night’s green apt update is not a trusted keyring. Name the owner of the image before the next CI layer runs apt.
Shinjae Kang
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A low-cost observability pattern for agent crons using logs, artifacts, summaries, and delivery checks before adding paid monitoring tools.
Shinjae Kang
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Five cron patterns that look healthy while silently failing, with checks for stale files, empty outputs, partial JSON, and missing delivery.
Shinjae Kang
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A long-running coding agent can stay green after it changes directory. Production still needs a sandbox that survives /cd, a budget that counts nested work, and a human who owns both.
Shinjae Kang
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