Add Claude Code developer skills for project contributors

.claude/skills/cli-command-development/SKILL.md

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+---
+name: cli-command-development
+description: Creating new CLI commands and topics for the B2C CLI using oclif
+---
+
+# CLI Command Development
+
+This skill covers creating new CLI commands and topics for the B2C CLI.
+
+## Command Organization
+
+Commands live in `packages/b2c-cli/src/commands/`. The directory structure maps directly to command names:
+
+```
+commands/
+├── code/
+│   ├── deploy.ts      → b2c code deploy
+│   ├── activate.ts    → b2c code activate
+│   └── list.ts        → b2c code list
+├── ods/
+│   ├── create.ts      → b2c ods create
+│   └── list.ts        → b2c ods list
+└── mrt/
+    └── env/
+        └── var/
+            └── set.ts → b2c mrt env var set
+```
+
+## Command Class Hierarchy
+
+Choose the appropriate base class based on what your command needs:
+
+```
+BaseCommand (logging, JSON output, error handling)
+  └─ OAuthCommand (OAuth authentication)
+       ├─ InstanceCommand (B2C instance: hostname, code version)
+       │   ├─ CartridgeCommand (cartridge path + filters)
+       │   ├─ JobCommand (job execution helpers)
+       │   └─ WebDavCommand (WebDAV root directory)
+       ├─ MrtCommand (Managed Runtime API)
+       └─ OdsCommand (On-Demand Sandbox API)
+```
+
+Import from `@salesforce/b2c-tooling-sdk/cli`:
+
+```typescript
+import { InstanceCommand, CartridgeCommand, OdsCommand } from '@salesforce/b2c-tooling-sdk/cli';
+```
+
+## Standard Command Template
+
+```typescript
+/*
+ * Copyright (c) 2025, Salesforce, Inc.
+ * SPDX-License-Identifier: Apache-2
+ * For full license text, see the license.txt file in the repo root
+ */
+import {Args, Flags} from '@oclif/core';
+import {InstanceCommand} from '@salesforce/b2c-tooling-sdk/cli';
+import {t} from '../../i18n/index.js';
+
+interface MyCommandResponse {
+  success: boolean;
+  data: SomeType[];
+}
+
+export default class MyCommand extends InstanceCommand<typeof MyCommand> {
+  static description = t('commands.topic.mycommand.description', 'Human-readable description');
+
+  static enableJsonFlag = true;
+
+  static examples = [
+    '<%= config.bin %> <%= command.id %> arg1',
+    '<%= config.bin %> <%= command.id %> --flag value',
+    '<%= config.bin %> <%= command.id %> --json',
+  ];
+
+  static args = {
+    name: Args.string({
+      description: 'Description of the argument',
+      required: true,
+    }),
+  };
+
+  static flags = {
+    myFlag: Flags.string({
+      char: 'm',
+      description: 'Flag description',
+      default: 'defaultValue',
+    }),
+    myBool: Flags.boolean({
+      description: 'Boolean flag',
+      default: false,
+    }),
+  };
+
+  async run(): Promise<MyCommandResponse> {
+    // Validation - call appropriate require* methods
+    this.requireServer();
+
+    // Access parsed args and flags
+    const {name} = this.args;
+    const {myFlag, myBool} = this.flags;
+
+    this.log(t('commands.topic.mycommand.working', 'Working on {{name}}...', {name}));
+
+    // Implementation
+    const result = await this.instance.ocapi.GET('/some/endpoint');
+
+    if (!result.data) {
+      this.error(t('commands.topic.mycommand.error', 'Failed: {{message}}', {
+        message: result.response?.statusText || 'Unknown error',
+      }));
+    }
+
+    const response: MyCommandResponse = {
+      success: true,
+      data: result.data,
+    };
+
+    // JSON mode returns the object directly (oclif handles serialization)
+    if (this.jsonEnabled()) {
+      return response;
+    }
+
+    // Human-readable output
+    this.log('Success!');
+    return response;
+  }
+}
+```
+
+## Adding a New Topic
+
+When creating a new command topic, add it to `packages/b2c-cli/package.json` in the oclif section:
+
+```json
+{
+  "oclif": {
+    "topics": {
+      "newtopic": {
+        "description": "Commands for new functionality"
+      },
+      "newtopic:subtopic": {
+        "description": "Subtopic commands"
+      }
+    }
+  }
+}
+```
+
+## Flag Patterns
+
+### Common Flag Types
+
+```typescript
+static flags = {
+  // String with short alias and env var fallback
+  server: Flags.string({
+    char: 's',
+    description: 'Server hostname',
+    env: 'SFCC_SERVER',
+  }),
+
+  // Integer with default
+  timeout: Flags.integer({
+    description: 'Timeout in seconds',
+    default: 60,
+  }),
+
+  // Boolean with --no-* variant
+  wait: Flags.boolean({
+    description: 'Wait for completion',
+    default: true,
+    allowNo: true,  // enables --no-wait
+  }),
+
+  // Comma-separated multiple values
+  channels: Flags.string({
+    description: 'Site channels (comma-separated)',
+    multiple: true,
+    multipleNonGreedy: true,
+    delimiter: ',',
+  }),
+
+  // Enum-like options
+  format: Flags.string({
+    description: 'Output format',
+    options: ['json', 'csv', 'table'],
+    default: 'table',
+  }),
+
+  // Conditional flag
+  secret: Flags.string({
+    description: 'Client secret (required for private clients)',
+    dependsOn: ['client-id'],
+  }),
+};
+```
+
+## Table Output
+
+Use `createTable` for consistent tabular output:
+
+```typescript
+import {createTable, TableRenderer, type ColumnDef} from '@salesforce/b2c-tooling-sdk/cli';
+
+type MyData = {id: string; name: string; status: string};
+
+const COLUMNS: Record<string, ColumnDef<MyData>> = {
+  id: {
+    header: 'ID',
+    get: (item) => item.id,
+  },
+  name: {
+    header: 'Name',
+    get: (item) => item.name,
+  },
+  status: {
+    header: 'Status',
+    get: (item) => item.status,
+    extended: true,  // Only shown with --extended
+  },
+};
+
+const DEFAULT_COLUMNS = ['id', 'name'];
+const tableRenderer = new TableRenderer(COLUMNS);
+
+// In run():
+tableRenderer.render(data, DEFAULT_COLUMNS);
+
+// With --columns flag support:
+const columns = this.flags.columns
+  ? tableRenderer.validateColumnKeys(this.flags.columns.split(','))
+  : DEFAULT_COLUMNS;
+tableRenderer.render(data, columns);
+```
+
+## Internationalization
+
+All user-facing strings use the `t()` function:
+
+```typescript
+import {t} from '../../i18n/index.js';
+
+// Basic usage
+this.log(t('commands.topic.cmd.message', 'Default message'));
+
+// With interpolation
+this.log(t('commands.topic.cmd.working', 'Processing {{count}} items...', {count: 5}));
+
+// For errors
+this.error(t('commands.topic.cmd.error', 'Failed: {{message}}', {message: err.message}));
+```
+
+Keys follow the pattern: `commands.<topic>.<command>.<key>`
+
+## Validation Methods
+
+Base classes provide validation helpers:
+
+```typescript
+// From OAuthCommand
+this.requireOAuthCredentials();  // Ensures clientId + clientSecret
+this.hasOAuthCredentials();      // Returns boolean
+
+// From InstanceCommand
+this.requireServer();            // Ensures hostname is set
+this.requireCodeVersion();       // Ensures code version is set
+this.requireWebDavCredentials(); // Ensures WebDAV auth (Basic or OAuth)
+
+// From MrtCommand
+this.requireMrtCredentials();    // Ensures MRT API credentials
+```
+
+## Accessing Clients
+
+InstanceCommand provides lazy-loaded clients:
+
+```typescript
+// OCAPI client (OAuth authenticated)
+const result = await this.instance.ocapi.GET('/code_versions');
+
+// WebDAV client (Basic or OAuth authenticated)
+await this.instance.webdav.put('path/to/file', buffer);
+
+// ODS client (from OdsCommand)
+const sandboxes = await this.odsClient.GET('/sandboxes');
+
+// MRT client (from MrtCommand)
+const projects = await this.mrtClient.GET('/api/projects/');
+```
+
+## Error Handling
+
+```typescript
+// Simple error (exits with code 1)
+this.error('Something went wrong');
+
+// Error with suggestions
+this.error('Config file not found', {
+  suggestions: ['Run b2c auth login first', 'Check your dw.json file'],
+});
+
+// Warning (continues execution)
+this.warn('Deprecated flag used');
+
+// Structured API errors
+if (result.error) {
+  this.error(t('commands.topic.cmd.apiError', 'API error: {{message}}', {
+    message: formatApiError(result.error),
+  }));
+}
+```
+
+## Creating a Command Checklist
+
+1. Create file at `packages/b2c-cli/src/commands/<topic>/<command>.ts`
+2. Choose appropriate base class
+3. Define `static description`, `examples`, `args`, `flags`
+4. Set `static enableJsonFlag = true` for JSON output support
+5. Implement `run()` method with proper return type
+6. Add topic to `package.json` if new
+7. Add i18n keys for all user-facing strings
+8. Update skill in `plugins/b2c-cli/skills/b2c-<topic>/SKILL.md` if exists
+9. Update CLI reference docs in `docs/cli/<topic>.md`
+10. Build and test: `pnpm run build && pnpm --filter @salesforce/b2c-cli run test`