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deterministic-shutdown-backstop

100 / 100 · Low risk

Fine to try.

By CarlosCaPe/octorato (GitHub) · coding · 18 stars · scanned at commit cfaeb00

A long-lived service that hangs INTERMITTENTLY on SIGTERM (non-reproducible, the init system kills it at the timeout, a false OnFailure alert fires and then self-recovers) is not a bug to chase. Install a deterministic daemon-timer backstop (os._exit after N seconds) inside the shutdown path. The race is unfixable by inspection; the backstop is.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'deterministic-shutdown-backstop' ] || [ -L ~/.agents/skills/'deterministic-shutdown-backstop' ]; then echo 'A skill folder named deterministic-shutdown-backstop already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/CarlosCaPe/octorato' "$d" && git -C "$d" checkout --quiet 'cfaeb008b4e13a38256d7358ed654f082122b122' -- 'skills/deterministic-shutdown-backstop' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/deterministic-shutdown-backstop' ~/.agents/skills/'deterministic-shutdown-backstop' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'deterministic-shutdown-backstop' ~/.claude/skills/'deterministic-shutdown-backstop' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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