pip install devscontext
devscontext demo

## Task: PROJ-123 — Add retry logic to payment webhook handler

### Requirements
1. Implement exponential backoff for failed webhook deliveries
2. Max 5 retry attempts over 24 hours
3. Dead-letter queue for permanently failed webhooks
4. Metrics for retry success/failure rates

Acceptance criteria: [Jira PROJ-123]
- [ ] Webhooks retry with exponential backoff (1min, 5min, 30min, 2hr, 12hr)
- [ ] Failed webhooks move to DLQ after 5 attempts
- [ ] Dashboard shows retry metrics

### Key Decisions
- **Use SQS with visibility timeout** for retry scheduling, not cron jobs.
  Decided by @sarah in March 15 sprint planning. Rationale: SQS handles
  timing natively, reduces operational overhead. [Meeting: Sprint 23 Planning]

- **Exponential backoff schedule**: 1min → 5min → 30min → 2hr → 12hr.
  Based on payment processor rate limits. [Comment by @mike, Mar 16]

### Architecture Context
Webhook flow: `PaymentController` → `WebhookService.dispatch()` → SQS queue
→ `WebhookWorker.process()` → external endpoint.

Add retry logic in `WebhookWorker.process()` at:
`src/workers/webhook_worker.ts:45-80`

DLQ table schema in `migrations/004_webhook_dlq.sql`. [Architecture: payments-service.md]

### Coding Standards
- Use `Result<T, WebhookError>` pattern, don't throw exceptions
- Retry delays: use `calculateBackoff(attempt)` helper from `src/utils/retry.ts`
- Tests: mock SQS with `@aws-sdk/client-sqs-mock`, see `tests/workers/` for examples
[Standards: typescript.md, testing.md]

### Related Work
- PROJ-456: "Payment webhook initial implementation" (Done) — base implementation
- PROJ-789: "Add webhook monitoring dashboard" (In Progress) — will consume the metrics

pip install devscontext
devscontext init

export JIRA_EMAIL="you@company.com"
export JIRA_API_TOKEN="your-token"
export ANTHROPIC_API_KEY="your-key"  # for synthesis

claude mcp add devscontext -- devscontext serve

> work on PROJ-123

# Start the agent (polls Jira for ready tickets)
devscontext agent start

# Single run for CI/cron
devscontext agent run-once

# Check pre-built context status
devscontext agent status

agents:
  preprocessor:
    enabled: true
    jira_status: "Ready for Development"
    jira_project: "PROJ"

sources:
  jira:
    enabled: true
    base_url: "https://your-company.atlassian.net"
    email: "${JIRA_EMAIL}"
    api_token: "${JIRA_API_TOKEN}"

  docs:
    enabled: true
    paths:
      - "./docs"
      - "./CLAUDE.md"

  slack:
    enabled: true
    bot_token: "${SLACK_BOT_TOKEN}"
    channels: ["engineering", "payments-team"]

synthesis:
  provider: "anthropic"
  model: "claude-haiku-4-5"

git clone https://github.com/Pro0f/devscontext.git
cd devscontext
pip install -e ".[dev]"

# Run tests
pytest

# Lint
ruff check . && mypy src/