Add or modify a custom GUC variable in a PostgreSQL backend patch or extension — covers DefineCustomBoolVariable / IntVariable / RealVariable / StringVariable / EnumVariable, picking the right GucContext (PGCPOSTMASTER / PGCSIGHUP / PGCSUSET / PGCUSERSET), MarkGUCPrefixReserved, the check/assign/show hook trio, GUCLISTINPUT / GUCLISTQUOTE / GUCUNITMS / GUCUNITKB / GUCREPORT / GUCEXPLAIN flags, and string-GUC gucmalloc rules. Use whenever a PG patch or extension calls DefineCustomVariable, picks a GucContext, wires check/assign/show hooks, debugs a placeholder GUC, or marks a GUC reserved via MarkGUCPrefixReserved. Skip for DBA tuning of sharedbuffers / maxconnections / workmem in production, dotenv / Viper / Dynaconf / Spring @Value configuration libraries, Kubernetes ConfigMap, Terraform variables, and non-PG application config systems.
Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI
Supported by the Atlas install prompt. Skill-specific requirements vary.
Skill stats
Skills1CategoryEngineeringStars0
About this skill
Add or modify a custom GUC variable in a PostgreSQL backend patch or extension — covers DefineCustomBoolVariable / IntVariable / RealVariable / StringVariable / EnumVariable, picking the right GucContext (PGCPOSTMASTER / PGCSIGHUP / PGCSUSET / PGCUSERSET), MarkGUCPrefixReserved, the check/assign/show hook trio, GUCLISTINPUT / GUCLISTQUOTE / GUCUNITMS / GUCUNITKB / GUCREPORT / GUCEXPLAIN flags, and string-GUC gucmalloc rules. Use whenever a PG patch or extension calls DefineCustomVariable, picks a GucContext, wires check/assign/show hooks, debugs a placeholder GUC, or marks a GUC reserved via MarkGUCPrefixReserved. Skip for DBA tuning of sharedbuffers / maxconnections / workmem in production, dotenv / Viper / Dynaconf / Spring @Value configuration libraries, Kubernetes ConfigMap, Terraform variables, and non-PG application config systems.
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Add or modify a custom GUC variable in a PostgreSQL backend patch or extension — covers DefineCustomBoolVariable / IntVariable / RealVariable / StringVariable / EnumVariable, picking the right GucContext (PGC_POSTMASTER / PGC_SIGHUP / PGC_SUSET / PGC_USERSET), MarkGUCPrefixReserved, the check/assign/show hook trio, GUC_LIST_INPUT / GUC_LIST_QUOTE / GUC_UNIT_MS / GUC_UNIT_KB / GUC_REPORT / GUC_EXPLAIN flags, and string-GUC guc_malloc rules. Use whenever a PG patch or extension calls DefineCustom*Variable, picks a GucContext, wires check/assign/show hooks, debugs a placeholder GUC, or marks a GUC reserved via MarkGUCPrefixReserved. Skip for DBA tuning of shared_buffers / max_connections / work_mem in production, dotenv / Viper / Dynaconf / Spring @Value configuration libraries, Kubernetes ConfigMap, Terraform variables, and non-PG application config systems.
About this listing
Category
Engineering
Reported license
PostgreSQL
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