Use when reasoning about the I in ACID — the isolation level a database provides between concurrent transactions: the five SQL-standard levels (read uncommitted, read committed, repeatable read, serializable) plus snapshot isolation; the anomalies each level admits (dirty reads, non-repeatable reads, phantom reads, write skew, lost updates); the Berenson et al. 1995 critique that exposed the standard's looseness; the difference between locking-based and MVCC-based isolation; Postgres's Serializable Snapshot Isolation (SSI) as one rigorous implementation; how to choose an isolation level for a workload by enumerating the anomalies the workload cannot tolerate. Do NOT use for the broader ACID frame (use acid-fundamentals), distributed-replica consistency (use cap-theorem-tradeoffs), query performance tuning (use query-optimization), or schema design (use data-modeling).
Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI
Supported by the Atlas install prompt. Skill-specific requirements vary.
Skill stats
Skills1CategoryEngineeringStars0
About this skill
Use when reasoning about the I in ACID — the isolation level a database provides between concurrent transactions: the five SQL-standard levels (read uncommitted, read committed, repeatable read, serializable) plus snapshot isolation; the anomalies each level admits (dirty reads, non-repeatable reads, phantom reads, write skew, lost updates); the Berenson et al. 1995 critique that exposed the standard's looseness; the difference between locking-based and MVCC-based isolation; Postgres's Serializable Snapshot Isolation (SSI) as one rigorous implementation; how to choose an isolation level for a workload by enumerating the anomalies the workload cannot tolerate. Do NOT use for the broader ACID frame (use acid-fundamentals), distributed-replica consistency (use cap-theorem-tradeoffs), query performance tuning (use query-optimization), or schema design (use data-modeling).
Quick start
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Use when reasoning about the I in ACID — the isolation level a database provides between concurrent transactions: the five SQL-standard levels (read uncommitted, read committed, repeatable read, serializable) plus snapshot isolation; the anomalies each level admits (dirty reads, non-repeatable reads, phantom reads, write skew, lost updates); the Berenson et al. 1995 critique that exposed the standard's looseness; the difference between locking-based and MVCC-based isolation; Postgres's Serializable Snapshot Isolation (SSI) as one rigorous implementation; how to choose an isolation level for a workload by enumerating the anomalies the workload cannot tolerate. Do NOT use for the broader ACID frame (use acid-fundamentals), distributed-replica consistency (use cap-theorem-tradeoffs), query performance tuning (use query-optimization), or schema design (use data-modeling).
About this listing
Category
Engineering
Reported license
Not specified
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
Claude Code
Codex
Cursor
GitHub Copilot
Gemini CLI