skills.rest
matejformanek
matejformanekCOMMUNITY
Explore all skills by this author →
GitHub

wire-protocol

Guide PostgreSQL wire protocol message framing and dispatch for backend development.

Updated Jun 1, 2026
Search Tags:#postgresql#backend#networking#internals#libpq#wire-protocol
One-click install
npx skills add https://github.com/matejformanek/postgres-claude --skill wire-protocol
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: wire-protocol
Source: https://github.com/matejformanek/postgres-claude/tree/main/.claude/skills/wire-protocol
Command: npx skills add https://github.com/matejformanek/postgres-claude --skill wire-protocol

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill resolves ambiguity and errors in PostgreSQL's frontend/backend communication, preventing common pitfalls like memory leaks, protocol version mismatches, and incorrect message framing.

Core Features & Use Cases

  • Protocol Debugging: Analyze backend-closed-connection errors and wire-level message sequences.
  • Message Implementation: Provides authoritative guidance on adding new protocol messages or modifying existing ones.
  • Lifecycle Management: Ensures correct usage of pq_beginmessage and pq_endmessage patterns to prevent buffer leaks.

Quick Start

Use the wire-protocol skill to debug a backend connection error by analyzing the last message sequence in the query loop.

Frequently Asked Questions about wire-protocol

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I debug a PostgreSQL backend closed connection error during the query loop?▼

Debug a PostgreSQL backend closed connection by analyzing the wire-level message sequences in the query loop to identify protocol version mismatches, incorrect message framing, or memory leaks causing the drop.

What is the correct way to frame messages in the PostgreSQL wire protocol?▼

Message framing in the PostgreSQL wire protocol requires strict adherence to the length-prefixed message format defined in the source tree, ensuring memory-safe buffer handling during frontend and backend communication.

How do I implement a new message type in the PostgreSQL frontend/backend protocol?▼

Implement a new PostgreSQL protocol message type by following structural guidance for message dispatch and applying correct pq_beginmessage and pq_endmessage lifecycle patterns to prevent buffer leaks.

Why does my PostgreSQL low-level socket communication drop or leak memory?▼

Low-level socket communication drops or leaks memory when pq_beginmessage and pq_endmessage lifecycle patterns are misused, violating the strict length-prefixed wire protocol format and causing buffer issues.

Do I need to handle protocol versioning when working with the PostgreSQL wire protocol?▼

Yes, handling protocol versioning is required for PostgreSQL wire protocol development to prevent version mismatches and ensure correct frontend/backend message dispatch during low-level socket communication.

What's the best way to ensure memory-safe buffer handling for PostgreSQL wire protocol messages?▼

Ensure memory-safe buffer handling for PostgreSQL wire protocol messages by strictly following the pq_beginmessage and pq_endmessage lifecycle patterns defined in the backend source tree.

Related Skills

Explore More Software Engineering Skills→
matejformanekmatejformanek

pg-claude

Routes PostgreSQL backend tasks through a structured knowledge corpus and automation.

Community
Advanced
89jobrien89jobrien
4

debugging

Parse logs and analyze stack traces to diagnose errors across languages.

Community
Advanced
stevenke1981stevenke1981
1

py-network

Build and review Python networking software across TCP, UDP, TLS, and HTTP.

Community
Advanced
wendylabsincwendylabsinc
62

database-driver-design

Design Swift database client libraries including wire protocol implementation and Swift Concurrency integration.

Official
Advanced