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long-lived-negative-dns-cache

100 / 100 · Low risk

Fine to try.

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

A long-running process (a cron supervisor, a daemon, a worker pool parent) caches a NEGATIVE DNS result after a transient network blip and then never retries, so every downstream call fails forever even though the network recovered seconds later. A wrapper bug can log a fake `exit=0`, hiding it. Symptom: 'nothing runs anymore' with no error. Fix: restart the process, then bound the DNS/connection cache TTL.

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/'long-lived-negative-dns-cache' ] || [ -L ~/.agents/skills/'long-lived-negative-dns-cache' ]; then echo 'A skill folder named long-lived-negative-dns-cache 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 "$d" checkout --quiet 'cfaeb008b4e13a38256d7358ed654f082122b122' -- 'skills/long-lived-negative-dns-cache' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/long-lived-negative-dns-cache' ~/.agents/skills/'long-lived-negative-dns-cache' && 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/'long-lived-negative-dns-cache' ~/.claude/skills/'long-lived-negative-dns-cache' (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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