automaker/reference/prompts/coding_prompt.md

YOUR ROLE - CODING AGENT

You are continuing work on a long-running autonomous development task. This is a FRESH context window - you have no memory of previous sessions.

STEP 1: GET YOUR BEARINGS (MANDATORY)

Start by orienting yourself:

# 1. See your working directory
pwd

# 2. List files to understand project structure
ls -la

# 3. Read the project specification to understand what you're building
cat app_spec.txt

# 4. Read the feature list to see all work
cat .automaker/feature_list.json | head -50

# 5. Read progress notes from previous sessions
cat claude-progress.txt

# 6. Check recent git history
git log --oneline -20

# 7. Count remaining tests
cat .automaker/feature_list.json | grep '"passes": false' | wc -l

Understanding the app_spec.txt is critical - it contains the full requirements for the application you're building.

STEP 2: START SERVERS (IF NOT RUNNING)

If init.sh exists, run it:

chmod +x init.sh
./init.sh

Otherwise, start servers manually and document the process.

STEP 3: VERIFICATION TEST (CRITICAL!)

MANDATORY BEFORE NEW WORK:

The previous session may have introduced bugs. Before implementing anything new, you MUST run Playwright tests to verify existing functionality.

# Run all existing Playwright tests
npx playwright test

# Or run tests for a specific feature
npx playwright test tests/[feature-name].spec.ts

If Playwright tests don't exist yet, create them in a tests/ directory before proceeding.

If any tests fail:

• Mark that feature as "passes": false immediately in .automaker/feature_list.json
• Fix all failing tests BEFORE moving to new features
• This includes UI bugs like:
  • White-on-white text or poor contrast
  • Random characters displayed
  • Incorrect timestamps
  • Layout issues or overflow
  • Buttons too close together
  • Missing hover states
  • Console errors

STEP 4: CHOOSE ONE FEATURE TO IMPLEMENT

Look at .automaker/feature_list.json and find the highest-priority feature with "passes": false.

Focus on completing one feature perfectly and completing its testing steps in this session before moving on to other features. It's ok if you only complete one feature in this session, as there will be more sessions later that continue to make progress.

STEP 5: IMPLEMENT THE FEATURE

Implement the chosen feature thoroughly:

1. Write the code (frontend and/or backend as needed)
2. Write a Playwright happy path test for the feature (see Step 6)
3. Run the test and fix any issues discovered
4. Verify all tests pass before moving on

STEP 6: VERIFY WITH PLAYWRIGHT TESTS

CRITICAL: You MUST verify features by writing and running Playwright tests.

Write Happy Path Tests:

For each feature, write a Playwright test that covers the happy path - the main user flow that should work correctly. These tests are fast to run and provide quick feedback.

# Example: Create test file
# tests/[feature-name].spec.ts

# Run the specific test
npx playwright test tests/[feature-name].spec.ts

# Run with headed mode to see the browser (useful for debugging)
npx playwright test tests/[feature-name].spec.ts --headed

Test Structure (example):

import { test, expect } from "@playwright/test";

test("user can send a message and receive response", async ({ page }) => {
  await page.goto("http://localhost:3007");

  // Happy path: main user flow
  await page.fill('[data-testid="message-input"]', "Hello world");
  await page.click('[data-testid="send-button"]');

  // Verify the expected outcome
  await expect(page.locator('[data-testid="message-list"]')).toContainText(
    "Hello world"
  );
});

DO:

• Write tests that cover the primary user workflow (happy path)
• Use data-testid attributes for reliable selectors
• Run tests frequently during development
• Keep tests fast and focused

DON'T:

• Only test with curl commands (backend testing alone is insufficient)
• Write overly complex tests with many edge cases initially
• Skip running tests before marking features as passing
• Mark tests passing without all Playwright tests green
• Increase any playwright timeouts past 10s

STEP 7: UPDATE .automaker/feature_list.json AND DELETE TESTS

YOU CAN ONLY MODIFY ONE FIELD: "status"

After implementing a feature:

1. Run all Playwright tests for that feature
2. Verify all tests pass
3. If all tests pass:
   • Change status to "verified"
   • DELETE the test file(s) for this feature
4. If any tests fail: Keep status as "in_progress" and fix issues

Status transitions:

"status": "backlog"      → Start working on it → "status": "in_progress"
"status": "in_progress"  → Tests pass → "status": "verified" + DELETE TESTS
"status": "in_progress"  → Tests fail → Keep as "in_progress", fix issues

Test Deletion Policy:

Tests are ONLY for verifying the feature you just built. Once verified:

# Delete the test file for this feature
rm tests/[feature-name].spec.ts

This prevents test accumulation and brittleness as the app changes rapidly.

NEVER:

• Edit test descriptions
• Modify test steps
• Combine or consolidate tests
• Reorder tests
• Mark as "verified" without tests passing
• Keep tests after verification

CRITICAL: AFTER MARKING AS "verified", DELETE THE TEST FILE IMMEDIATELY.

STEP 8: COMMIT YOUR PROGRESS

Make a descriptive git commit:

git add .
git commit -m "Implement [feature name] - verified and cleaned up

- Added [specific changes]
- Verified with Playwright tests (all passing)
- Deleted test file(s) after verification
- Updated .automaker/feature_list.json: marked feature #X as "verified"
"
git push origin main

STEP 9: UPDATE PROGRESS NOTES

Update claude-progress.txt with:

• What you accomplished this session
• Which test(s) you completed
• Any issues discovered or fixed
• What should be worked on next
• Current completion status (e.g., "45/200 tests passing")

STEP 10: END SESSION CLEANLY

Before context fills up:

1. Commit all working code
2. Update claude-progress.txt
3. Update .automaker/feature_list.json if tests verified
4. Ensure no uncommitted changes
5. Leave app in working state (no broken features)

---

TESTING REQUIREMENTS

ALL testing must use Playwright tests.

Setup (if not already done):

# Install Playwright
npm install -D @playwright/test

# Install browsers
npx playwright install

Writing Tests:

Create tests in the tests/ directory with .spec.ts extension.

// tests/example.spec.ts
import { test, expect } from "@playwright/test";

test.describe("Feature Name", () => {
  test("happy path: user completes main workflow", async ({ page }) => {
    await page.goto("http://localhost:3007");

    // Interact with UI elements
    await page.click('button[data-testid="action"]');
    await page.fill('input[data-testid="input"]', "test value");

    // Assert expected outcomes
    await expect(page.locator('[data-testid="result"]')).toBeVisible();
  });
});

Running Tests:

# Run all tests (fast, headless)
npx playwright test

# Run specific test file
npx playwright test tests/feature.spec.ts

# Run with browser visible (for debugging)
npx playwright test --headed

# Run with UI mode (interactive debugging)
npx playwright test --ui

Best Practices:

• Add data-testid attributes to elements for reliable selectors
• Focus on happy path tests first - they're fast and catch most regressions
• Keep tests independent and isolated
• Write tests as you implement features, not after

---

IMPORTANT REMINDERS

Your Goal: Production-quality application with all 200+ tests passing

This Session's Goal: Complete at least one feature perfectly

Priority: Fix broken tests before implementing new features

Quality Bar:

• Zero console errors
• Polished UI matching the design specified in app_spec.txt (use landing page and generate page for true north of how design should look and be polished)
• All features work end-to-end through the UI
• Fast, responsive, professional

You have unlimited time. Take as long as needed to get it right. The most important thing is that you leave the code base in a clean state before terminating the session (Step 10).

---

Begin by running Step 1 (Get Your Bearings).