write-tests-frontend-workflow

write-tests-frontend-workflow is a cursor rule for Cursor from golid-ai/golid. It costs 0 tokens per session (608 once invoked), scanned A, original, MIT.

A frontend testing workflow that sets code-coverage limits and requires tests to match public changes. Coverage measures how much of the code is exercised by tests.

In plain words
What is it for?
Use it when adding or changing frontend components, interfaces, routes, mocks, or tests, and before pushing code.
Why use it?
It helps catch silent test failures when labels, component behavior, routes, or API data change.

Cursor rule for Cursor

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add rules/golid-ai/golid/write-tests-frontend-workflow
Clone the repo
git clone --depth 1 https://github.com/golid-ai/golid

Made for: Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for write-tests-frontend-workflow

README.md
[![agentmods](https://agentmods.dev/badge/rules/golid-ai/golid/write-tests-frontend-workflow.svg)](https://agentmods.dev/rules/golid-ai/golid/write-tests-frontend-workflow)
Your own site
<a href="https://agentmods.dev/rules/golid-ai/golid/write-tests-frontend-workflow"><img src="https://agentmods.dev/badge/rules/golid-ai/golid/write-tests-frontend-workflow.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 608 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00608
Opus 5 $0.00000 $0.00304
Sonnet 5 $0.00000 $0.00122
Haiku 4.5 $0.00000 $0.00061

Measured 5d ago against content hash 1ee2986fe040, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

write-tests-frontend-workflow scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.cursor/rules/write-tests-frontend-workflow.mdc · 58 lines

How it starts

The opening of the file, as written. The whole thing — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Frontend Test Workflow

Thesis: Ratchet coverage, keep tests in sync with public interfaces, and verify types before push — workflow discipline prevents silent CI failures.

Coverage Thresholds

After writing tests, update vitest.config.ts thresholds to 5% below the new actual coverage. This prevents regression without blocking future work. Ratchet up as coverage grows.

Current thresholds: statements: 75, branches: 54, functions: 78, lines: 75 (included files; recalibrated 2026-06-07). CI fails if coverage drops below these. Codecov project gate (target: 80%) is documented in docs/plans/archive/6-7-26/coverage-and-eslint.md.

Keep Tests In Sync With Code

Any commit that changes a component's public interface must include test updates in the same commit. Public interface means:

  • Placeholder text, labels, or rendered copy
  • Toast/snackbar message strings (title, subtitle)
  • Component swaps (checkbox → button, outline → neutral)
  • Props that tests assert on (variant, size, disabled state)
  • API mock shapes (new fields, changed signatures)
  • Route changes or navigation targets

Search for affected tests before committing. Use rg "the old text" across *.test.tsx, *.test.ts, and tests/e2e/*.spec.ts. If a test references something you changed, fix it in the same commit.

E2E tests (tests/e2e/) use browser selectors that match rendered HTML — placeholder changes, button text changes, and form restructuring all break them silently until CI runs. See write-tests-e2e for browser-test patterns.

Pre-Push Checklist

Before pushing any test file changes, run both:

cd frontend && npx vitest run          # runtime tests
cd frontend && npx tsc --noEmit        # type checking

TypeScript catches import errors (non-existent exports, using types as values) that JavaScript silently ignores at runtime. CI runs npm run typecheck and will reject type errors even when all tests pass.

Running Tests

# Frontend unit + component tests
cd frontend && npm test

# Frontend type check (run before pushing — catches import errors tests miss)
cd frontend && npx tsc --noEmit

Read the full file on GitHub · 58 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 58 lines · 0 tokens per session scan A 1ee2986fe040

Subscribe to this mod's changes

write-tests-frontend-workflow is a cursor rule published in the GitHub repository golid-ai/golid (40 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 608 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.