Platform Custom Field Generate

Generates and validates Salesforce CustomField metadata XML with built-in guardrails for the types that fail deployment most often: Roll-Up Summary and Master-Detail relationships. It enforces precision/scale math, the TextArea fixed-255 rule, proper file paths in SFDX format, and modern dependent picklist syntax. Handles the tricky stuff like External IDs, formula fields, value-set references, and record type scoping. The skill won't create GlobalValueSets or StandardValueSets themselves (that's a different skill), but it will wire up fields that reference them. Useful when you're tired of deployment errors that trace back to missing relationshipOrder tags or backwards precision values.

skills.sh installs: 6.8K
GitHub stars: 1.2K
last updated: Aug 21, 2026

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Install

$ npx -y skills add forcedotcom/sf-skills --skill platform-custom-field-generate --agent claude-code

Installs into .claude/skills of the current project.

Files

Salesforce Custom Field Generator and Validator

Overview

Generates and validates Salesforce CustomField metadata XML, with special handling for the highest-failure-rate types — Roll-Up Summary and Master-Detail. The agent must verify the constraints below before outputting XML to prevent Metadata API deployment errors.