Salesforce Developer

What it does

When your agent uses it

• Writing Apex triggers and handler classes that cope with bulk data
• Building Lightning Web Components with the wire service
• Rewriting slow or non-selective SOQL queries
• Fixing governor limit errors in batch or queueable jobs
• Setting up Salesforce DX scratch orgs and CI/CD deployment

Example prompts

• “Rewrite the Opportunity trigger so it queries once outside the loop and handles 200 records.”
• “Build a Lightning Web Component that lists open cases for an account.”
• “This SOQL query times out in production, so make it selective and explain which index it uses.”
• “Set up a CI pipeline that deploys to a scratch org and runs all Apex tests.”

Requirements

• Salesforce DX for scratch orgs and metadata deployment

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

1. 1Analyze requirements - Understand business needs, data model, governor limits, scalability
2. 2Design solution - Choose declarative vs programmatic, plan bulkification, design integrations
3. 3Implement - Write Apex classes, LWC components, SOQL queries with best practices
4. 4Validate governor limits - Verify SOQL/DML counts, heap size, and CPU time stay within platform limits before proceeding
5. 5Test thoroughly - Write test classes with 90%+ coverage, test bulk scenarios (200-record batches)
6. 6Deploy - Use Salesforce DX, scratch orgs, CI/CD for metadata deployment

What it can do on your machine

Read from SKILL.md and the folder at commit 1be15d8. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are apex, html, javascript and xml).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  Hosts in commands or code, which the agent is likely to contact:

  • soap.sforce.com

  Also links to:

  • github.com
  • synergetic.solutions
  • jeffallan.github.io

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Salesforce Developer loads about 1.9k tokens when it runs, and up to ~30k if it reads all its reference files. Until then it costs about 91 tokens; SKILL.md has 270 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~91

When it runs · the whole SKILL.md, loaded when a task matches

~1.9k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~30k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Jeffallan/claude-skills at commit 1be15d8, republished under its MIT licence (© Jeffallan). 270 words, ~1,921 tokens.

name

salesforce-developer

description

Writes and debugs Apex code, builds Lightning Web Components, optimizes SOQL queries, implements triggers, batch jobs, platform events, and integrations on the Salesforce platform. Use when developing Salesforce applications, customizing CRM workflows, managing governor limits, bulk processing, or setting up Salesforce DX and CI/CD pipelines.

license

MIT

metadata.author

https://github.com/Jeffallan

metadata.company

https://synergetic.solutions

metadata.version

1.1.0

metadata.domain

platform

metadata.triggers

Salesforce, Apex, Lightning Web Components, LWC, SOQL, SOSL, Visualforce, Salesforce DX, governor limits, triggers, platform events, CRM integration, Sales…

metadata.role

expert

metadata.scope

implementation

metadata.output-format

code

metadata.related-skills

api-designer, java-architect, cloud-architect, devops-engineer

// CORRECT: collect IDs, query once outside the loop
trigger AccountTrigger on Account (before insert, before update) {
    AccountTriggerHandler.handleBeforeInsert(Trigger.new);
}

public class AccountTriggerHandler {
    public static void handleBeforeInsert(List<Account> newAccounts) {
        Set<Id> parentIds = new Set<Id>();
        for (Account acc : newAccounts) {
            if (acc.ParentId != null) parentIds.add(acc.ParentId);
        }
        Map<Id, Account> parentMap = new Map<Id, Account>(
            [SELECT Id, Name FROM Account WHERE Id IN :parentIds]
        );
        for (Account acc : newAccounts) {
            if (acc.ParentId != null && parentMap.containsKey(acc.ParentId)) {
                acc.Description = 'Child of: ' + parentMap.get(acc.ParentId).Name;
            }
        }
    }
}

// INCORRECT: SOQL inside loop — governor limit violation
trigger AccountTrigger on Account (before insert) {
    for (Account acc : Trigger.new) {
        Account parent = [SELECT Id, Name FROM Account WHERE Id = :acc.ParentId]; // BAD
        acc.Description = 'Child of: ' + parent.Name;
    }
}

public class ContactBatchUpdate implements Database.Batchable<SObject> {
    public Database.QueryLocator start(Database.BatchableContext bc) {
        return Database.getQueryLocator([SELECT Id, Email FROM Contact WHERE Email = null]);
    }
    public void execute(Database.BatchableContext bc, List<Contact> scope) {
        for (Contact c : scope) {
            c.Email = 'unknown@example.com';
        }
        Database.update(scope, false); // partial success allowed
    }
    public void finish(Database.BatchableContext bc) {
        // Send notification or chain next batch
    }
}
// Execute: Database.executeBatch(new ContactBatchUpdate(), 200);

@IsTest
private class AccountTriggerHandlerTest {
    @TestSetup
    static void makeData() {
        Account parent = new Account(Name = 'Parent Co');
        insert parent;
        Account child = new Account(Name = 'Child Co', ParentId = parent.Id);
        insert child;
    }

    @IsTest
    static void testBulkInsert() {
        Account parent = [SELECT Id FROM Account WHERE Name = 'Parent Co' LIMIT 1];
        List<Account> children = new List<Account>();
        for (Integer i = 0; i < 200; i++) {
            children.add(new Account(Name = 'Child ' + i, ParentId = parent.Id));
        }
        Test.startTest();
        insert children;
        Test.stopTest();

        List<Account> updated = [SELECT Description FROM Account WHERE ParentId = :parent.Id];
        System.assert(!updated.isEmpty(), 'Children should have descriptions set');
        System.assert(updated[0].Description.startsWith('Child of:'), 'Description format mismatch');
    }
}

// Selective query — use indexed fields in WHERE clause
List<Opportunity> opps = [
    SELECT Id, Name, Amount, StageName
    FROM Opportunity
    WHERE AccountId IN :accountIds      // indexed field
      AND CloseDate >= :Date.today()    // indexed field
    ORDER BY CloseDate ASC
    LIMIT 200
];

// Relationship query to avoid extra round-trips
List<Account> accounts = [
    SELECT Id, Name,
           (SELECT Id, LastName, Email FROM Contacts WHERE Email != null)
    FROM Account
    WHERE Id IN :accountIds
];

<!-- counterComponent.html -->
<template>
    <lightning-card title="Counter">
        <div class="slds-p-around_medium">
            <p>Count: {count}</p>
            <lightning-button label="Increment" onclick={handleIncrement}></lightning-button>
        </div>
    </lightning-card>
</template>

// counterComponent.js
import { LightningElement, track } from 'lwc';
export default class CounterComponent extends LightningElement {
    @track count = 0;
    handleIncrement() {
        this.count += 1;
    }
}

<!-- counterComponent.js-meta.xml -->
<?xml version="1.0" encoding="UTF-8"?>
<LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata">
    <apiVersion>59.0</apiVersion>
    <isExposed>true</isExposed>
    <targets>
        <target>lightning__AppPage</target>
        <target>lightning__RecordPage</target>
    </targets>
</LightningComponentBundle>

© Jeffallan, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 5 other files (references) in skills/salesforce-developer of Jeffallan/claude-skills.

• SKILL.md
• references/apex-development.md
• references/deployment-devops.md
• references/integration-patterns.md
• references/lightning-web-components.md
• references/soql-sosl.md

Open the folder on GitHubat commit 1be15d8