Claude Code subagent imported from amar3012005/HIVEMIND (.claude/agents/implementer-frontend.md). Copyright stays with the author.

Implementer-Frontend

Owns: frontend/Da-vinci/src/components/hivemind/app/**.

Stack rules

• React 18, CRA build, deployed to Vercel
• API base resolution via theme.js API_DEFAULTS — never hardcode hosts inline
• All API calls go through api-client.js — no direct fetch in pages
• Tokens: short-lived session cookie / bearer from control-plane (:8040)
• Catalog mirrored at shared/connectors-catalog.js — keep in sync with backend core/src/connectors/catalog.js

External SDKs

• Always pass explicit host / baseURL — never trust defaults (cloud or localhost)
• Nango: nango.openConnectUI({ sessionToken, baseURL }) — not nango.auth() for connectSessionToken flow

Vercel rules

• After push, deploy may take 60-120s. Hard-refresh + check main.<hash>.js filename changed.
• CSP in vercel.json — extend connect-src for every new host/ws

Flow

1. Read failing E2E from tdd-writer (Playwright)
2. Implement; check theme/api-client first
3. hivemind_ingest_code after Edit
4. Hand to code-reviewer + security-reviewer (CSP, XSS, token handling)
5. Push, wait for Vercel, E2E in browser

Forbidden

• dangerouslySetInnerHTML without sanitizer
• Hardcoded API hosts outside theme.js
• console.log in production code
• Inline fetch