slack-agent

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---
name: slack-agent
description: Use when working on Slack agent/bot code, Chat SDK applications, or projects using @chat-adapter/slack. Provides development patterns, testing requirements, and quality standards.
user-invocable: true
---

# Slack Agent Development Skill

This skill supports building Slack agents with **Chat SDK** (`chat` + `@chat-adapter/slack`).

## Skill Invocation Handling

When this skill is invoked via `/slack-agent`, check for arguments and route accordingly:

### Command Arguments

| Argument | Action |
|----------|--------|
| `new` | **Run the setup wizard from Phase 1.** Read `./wizard/1-project-setup.md` and guide the user through creating a new Slack agent. |
| `configure` | Start wizard at Phase 2 or 3 for existing projects |
| `deploy` | Start wizard at Phase 5 for production deployment |
| `test` | Start wizard at Phase 6 to set up testing |
| (no argument) | Auto-detect based on project state (see below) |

### Auto-Detection (No Argument)

If invoked without arguments, detect the project state and route appropriately:

1. **No `package.json` with `chat`** → Treat as `new`, start Phase 1
2. **Has project but no customized `manifest.json`** → Start Phase 2
3. **Has project but no `.env` file** → Start Phase 3
4. **Has `.env` but not tested** → Start Phase 4
5. **Tested but not deployed** → Start Phase 5
6. **Otherwise** → Provide general assistance using this skill's patterns

### Wizard Phases

The wizard is located in `./wizard/` with these phases:
- `1-project-setup.md` - Understand purpose, generate custom implementation plan
- `1b-approve-plan.md` - Present plan for user approval before scaffolding
- `2-create-slack-app.md` - Customize manifest, create app in Slack
- `3-configure-environment.md` - Set up .env with credentials
- `4-test-locally.md` - Dev server + ngrok tunnel
- `5-deploy-production.md` - Vercel deployment
- `6-setup-testing.md` - Vitest configuration

**IMPORTANT:** For `new` projects, you MUST:
1. Read `./wizard/1-project-setup.md` first
2. Ask the user what kind of agent they want to build
3. Generate a custom implementation plan using `./reference/agent-archetypes.md`
4. Present the plan for approval (Phase 1b) BEFORE scaffolding the project
5. Only proceed to scaffold after the plan is approved

---

## General Development Guidance

You are working on a Slack agent project. Follow these mandatory practices for all code changes.

## Project Stack

- **Framework**: Next.js (App Router)
- **Chat SDK**: `chat` + `@chat-adapter/slack` for Slack bot functionality
- **State**: `@chat-adapter/state-redis` for state persistence (or in-memory for development)
- **AI**: AI SDK v6 with @ai-sdk/gateway
- **Linting**: Biome
- **Package Manager**: pnpm

```json
{
  "dependencies": {
    "ai": "^6.0.0",
    "@ai-sdk/gateway": "latest",
    "chat": "latest",
    "@chat-adapter/slack": "latest",
    "@chat-adapter/state-redis": "latest",
    "zod": "^3.x",
    "next": "^15.x"
  }
}
```

**Note:** When deploying on Vercel, prefer `@ai-sdk/gateway` for zero-config AI access. Use direct provider SDKs (`@ai-sdk/openai`, `@ai-sdk/anthropic`, etc.) only when you need provider-specific features or are not deploying on Vercel.

---

## Quality Standards (MANDATORY)

These quality requirements MUST be followed for every code change. There are no exceptions.

### After EVERY File Modification

1. **Run linting immediately:**
   ```bash
   pnpm lint
   ```
   - If errors exist, run `pnpm lint --write` for auto-fixes
   - Manually fix remaining issues
   - Re-run `pnpm lint` to verify

2. **Check for corresponding test file:**
   - If you modified `foo.ts`, check if `foo.test.ts` exists
   - If no test file exists and the file exports functions, create one

### Before Completing ANY Task

You MUST run all quality checks and fix any issues before marking a task complete:

```bash
# 1. TypeScript compilation - must pass
pnpm typecheck

# 2. Linting - must pass with no errors
pnpm lint

# 3. Tests - al