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pg-circuit

Circuit breaker for production PostgreSQL. Native extension that can ALLOW, WARN, or BLOCK dangerous SQL based on live database state. Apache 2.0.

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GITHUB · launched Sep 12, 2026 · 12 upvotes (top 63%) · 0 views

Niche: database and data quality tools · 104 launches, 7 in the last 7 days ▼ -22% · Explore this niche →

Category and tags

  • Horizontal
  • Data infrastructure
  • Developer
  • Not AI
  • Hobby / open-source project
  • apache2
  • c
  • circuit-breaker
  • database-safety
  • database-security
  • dba
  • +12 more

Visit website ↗ Source listing ↗

Could you build this?

No Writing a native PostgreSQL C extension that safely intercepts query execution hooks and assesses runtime lock contention and replication lag requires deep database kernel internals expertise.

What it would actually take: This requires developing a PostgreSQL extension in C using hooks such as `ExecutorStart_hook`, `ProcessUtility_hook`, and `post_parse_analyze_hook`. The extension must safely traverse the SQL AST to detect dangerous patterns and inspect Postgres shared memory (lock tables, WAL sender status, replication delay) with microsecond latency. Ensuring crash safety, zero memory leaks, and high-concurrency stability requires specialized PostgreSQL core systems programming.

Competitors

Other products that read as similar to this one : 53 launches clear the similarity bar, closest 8 shown.

Attention rank: #32 of 54 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 297 days after the earliest competitor.

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.