OpenAEC-Foundation/ERPNext_Anthropic_Claude_Development_Skill_Package Skills

Complete guide for ERPNext/Frappe API integrations (v14/v15/v16) including REST API, RPC API, authentication, webhooks, and rate limiting. Use when code is needed for external API calls to ERPNext, designing API endpoints, configuring webhooks, implementing authentication (token/OAuth2/session). Triggers: API integration, REST endpoint, webhook, token authentication, OAuth, frappe.call, external connection, API response, rate limiting.

Intelligent agent for interpreting vague ERPNext development requests and producing concrete technical specifications. Use when receiving unclear requirements like 'make invoice auto-calculate', 'add approval workflow', 'sync with external system'. Triggers: user gives vague requirement, need to clarify scope, translate business need to technical spec, determine which ERPNext mechanisms to use, create implementation plan.

Intelligent agent for validating ERPNext/Frappe code against best practices and common pitfalls. Use when reviewing generated code, checking for errors before deployment, or validating code quality. Triggers: review this code, check my script, validate before deployment, is this correct, find bugs, check for errors, will this work.

Database operations and ORM patterns for ERPNext/Frappe v14-v16

Error handling patterns for ERPNext/Frappe API development (v14/v15/v16). Covers whitelisted method errors, REST API errors, client-side handling, external integrations, and webhooks. Triggers: API error, whitelisted method error, frappe.call error, REST API error, webhook error, external API error, HTTP status codes.

Error handling patterns for ERPNext/Frappe Client Scripts. Use when implementing try/catch, user feedback, server call error handling, validation errors, and debugging. Covers async error handling, graceful degradation, and user-friendly error messages. V14/V15/V16 compatible. Triggers: client script error, try catch, frappe.throw, error handling, async error, validation error.

Error handling patterns for ERPNext Document Controllers. Use when implementing try/except, validation errors, permission errors, and transaction management. Covers rollback patterns, error logging, and user feedback. V14/V15/V16 compatible. Triggers: controller error, try except catch, ValidationError, PermissionError, rollback, error handling.

Error handling patterns for ERPNext/Frappe database operations. Use when handling DoesNotExistError, DuplicateEntryError, transaction failures, and query errors. Covers retry patterns and data integrity. V14/V15/V16 compatible. Triggers: database error, DoesNotExistError, DuplicateEntryError, transaction failed, query error.

Error handling patterns for ERPNext hooks.py configurations. Use when debugging doc_events errors, scheduler failures, boot session issues, and app initialization problems. V14/V15/V16 compatible. Triggers: hooks.py error, doc_events error, scheduler error, boot session error, app initialization error.

Error handling patterns for ERPNext/Frappe permissions and access control. Use when handling PermissionError, has_permission failures, role issues, and document access problems. V14/V15/V16 compatible. Triggers: permission error, access denied, PermissionError, role error, has_permission failed, document access error.

Error handling patterns for ERPNext Server Scripts. Use when handling sandbox errors, frappe.throw usage, validation in server scripts, and debugging. V14/V15/V16 compatible. Triggers: server script error, frappe.throw, sandbox error, validation error, debugging server script.

Implementation workflows and decision trees for ERPNext Client Scripts. Use when determining HOW to implement client-side features: form validations, dynamic UI, server integration, child table logic. Triggers: how do I implement, when to use, which approach, client script workflow, build form logic, make UI dynamic, calculate fields.

Implementation workflows and decision trees for Frappe Document Controllers. Use when determining HOW to implement server-side DocType logic: lifecycle hooks, validation patterns, autoname, submittable workflows, controller override. Triggers: how do I implement controller, which hook to use, validate vs on_update, override controller, submittable document, autoname pattern, flags system.

Implementation workflows for building Frappe/ERPNext custom apps. Covers app structure, module creation, doctype design, fixtures, patches, and deployment. V14/V15/V16 compatible. Triggers: create custom app, new frappe app, bench new-app, app structure, module creation, doctype creation, fixtures, patches.

Implementation workflows and decision trees for Frappe hooks.py configuration. Use when determining HOW to implement doc_events, scheduler_events, override hooks, permission hooks, extend_bootinfo, fixtures, and asset includes. Covers V16 extend_doctype_class. Triggers: how do I hook, which hook to use, doc_events vs controller, override doctype, extend doctype class, permission hook, scheduler job, cron task, fixtures export.

Implementation workflows and decision trees for Jinja templates in ERPNext/Frappe. Use when determining HOW to implement Print Formats, Email Templates, Portal Pages, or custom Jinja methods. Covers template type selection, context variables, styling, and V16 Chrome PDF rendering. Triggers: create print format, email template, portal page, custom jinja filter, print format styling, pdf template, invoice template, report template.

Implementation workflows for Frappe scheduled tasks and background jobs (v14/v15/v16). Covers hooks.py scheduler_events, frappe.enqueue, queue selection, job deduplication, and error handling. Triggers: how to schedule task, background job, cron job, async processing, queue selection, job deduplication, scheduler implementation.

Implementation workflows and decision trees for ERPNext Server Scripts. Use when determining HOW to implement server-side features: document validation, automated calculations, API endpoints, scheduled tasks, permission filtering. Triggers: how do I implement server-side, when to use server script vs controller, which script type, build custom API, automate validation, schedule task, filter documents per user.

Implementation workflows and decision trees for Frappe Whitelisted Methods (REST APIs). Use when determining HOW to implement API endpoints: public vs authenticated, permission patterns, error handling, response formats, client integration. Triggers: how do I create API, build REST endpoint, frappe.call pattern, API permission check, guest API, secure endpoint.

Complete guide for Frappe/ERPNext permission system - roles, user permissions, perm levels, data masking, and permission hooks

Exact JavaScript syntax for ERPNext/Frappe Client Scripts. Use when writing client-side code for form events, field manipulation, server calls, or child table handling in ERPNext v14/v15/v16. Triggers: client script, form event, frm methods, frappe.call, frappe.ui.form.on, JavaScript in ERPNext, browser-side code, UI interaction, client-side field validation.

Deterministic syntax for Frappe Document Controllers (Python server-side). Use when Claude needs to generate code for DocType controllers, lifecycle hooks (validate, on_update, on_submit, etc.), document methods, controller override, submittable documents, or when questions concern controller structure, naming conventions, autoname patterns, UUID naming (v16), or the flags system. Triggers: document controller, controller hook, validate, on_update, on_submit, autoname, naming series, UUID naming, flags system.