runner reuses `web/.next/BUILD_ID` when present. Set `E2E_FORCE_WEB_BUILD=1` to force a frontend rebuild. Use `E2E_BROWSER=webkit` for focused cross-browser runs and `E2E_SLOW
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Frontend Workflow
- Prefer vinext for frontend development. With a local backend, start the API separately and use `./dev/start-web` or `pnpm -C web dev` for the frontend only; the Dev Container
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Frontend Architecture Guardrails
These rules supplement the repository's root `AGENTS.md`.
- **Contract ownership.** Generated event and notice contracts are owned by the
backend wire contract. Handwritten payload types are acceptable
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contract.** Notifications are typed. Event names, status values
and payload shapes stay compatible with frontend producers and consumers.
- **Synchronization ownership.** Configuration-write serialization precedes
configuration-update ownership, which precedes Core
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Write and review Playwright E2E tests for Langflow. Trigger when the user asks to write, fix, or review E2E tests, spec files, Playwright tests, or integration tests that exercise the full UI. Also trigger when modifying data-testid attributes, test helpers in tests/utils/, or fixture configuration.
source of truth
for tokens (color, type, spacing).
2. **COMMIT to an aesthetic — `frontend-design`.** Do not sample the safe center of the
training distribution. Answer four questions first — *purpose
Steady9 mentions in 2 weeks
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execution-relevant state, produce execution results and errors, and
not know about workflow ids, frontend ids, persistence ids, or API-only
concepts.
- Before touching many files, identify the smallest owner
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Manages stacked PRs and splits multi-part work into reviewable branches with gh-stack. Use for stack creation, viewing, edits, push, submit, sync, rebase, merge, or checkout; when asked to split or isolate work for review; whenever a user mentions a stack, branch layers, dependent PRs, or gh stack; or when a stack is checked out.
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Vitest, tsdown, Oxlint, Oxfmt, and Vite Task. Vite+ wraps runtime management, package management, and frontend tooling in a single global CLI called `vp`. Vite+ is distinct from Vite
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Designer's eye QA: finds visual inconsistency, spacing issues, hierarchy problems, AI slop patterns, and slow interactions — then fixes them; --build checks UI while you build it. (gstack)
Review llama.cpp changes against project conventions and common reviewer pitfalls before a PR. Use when the user wants to review a diff, branch, or PR.
Plain text files in a repository that tell a coding agent how the project works: commands to run, conventions to follow and things to avoid. CLAUDE.md, AGENTS.md, cursor rules and skills are the common kinds.
CLAUDE.md or AGENTS.md?
CLAUDE.md is read by Claude Code. AGENTS.md is an open format that Codex, Cursor and other agents read. Many projects keep one and point the other at it.
What is a skill?
A folder with a SKILL.md that describes one capability, such as filling PDFs or reviewing code. The agent loads it only when the task calls for it.
Can I search my own team's files too?
Your agents already can, over MCP, limited to the files you're allowed to read. Searching them from this page is coming.