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**Property.** However many commands write one person's memberships at once, and however PostgreSQL interleaves their statements (a request can be cancelled at any step), no write is rolled back as a deadlock victim, no write waits inside the exclusion check for another transaction's unfinished row (the writes of one person never run at the same time), no two overlapping memberships of one person in one team are both committed, "already exists" is only said when a committed membership overlaps, and a change commits only if it was legal from the membership it really replaced. The commands that change who is on the admin list take its lock before any person's, so the order of the locks never makes two commands wait for each other.
Verify membership writes under concurrency is an agent skill entry in ChatHome Skills, sourced from GitHub Skill Search and scored 53/100. # Verify membership writes under concurrency **Property.** However many commands write one person's memberships at once, and however PostgreSQL interleaves thei. As an agent skill, it packages a reusable instruction set that AI coding agents such as Codex and Claude Code can load to perform this task without hand-written glue code. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding Verify membership writes under concurrency to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
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# Verify membership writes under concurrency **Property.** However many commands write one person's memberships at once, and however PostgreSQL interleaves their statements (a requ