React SPA on Vite

A browser-only React single-page app built with Vite and served as static files, with React Router, TanStack Query over a typed fetch client with zod, Biome, Vitest with Testing Library and MSW, and Playwright tests of the built site.

What done means

Your agent follows the brief, then runs stacks verify without weakening or skipping checks. What happens next

Declared steps: install, lint, typecheck, test, build, e2e, web, readme-filled. View commands

Use this stack

Paste the prompt into the coding agent working on your project.

Full projectQuick local experiment

Uses the stack’s default fragments. Review the brief with your agent.Uses stated defaults and omits deploy, release, and app fragments unless explicitly requested.

View prompt

Use the react-vite stack for this project. 1. Run npx @steamfield/stacks show react-vite --json and check that it fits the project. If it does not, explain why before changing files. 2. Run npx @steamfield/stacks new react-vite and follow the brief it prints. 3. From the generated project directory, run npx @steamfield/stacks verify. Fix failures without weakening or skipping verification steps. 4. Summarize what changed and the verification result. Quote published stats only when they are available, including their interval and sample size. The stacks docs, written for agents, are at https://stacks.steamfield.io/llms.txt.

Use the react-vite stack for a quick local experiment. 1. Run npx @steamfield/stacks show react-vite --json and check that it fits the project. If it does not, explain why before changing files. 2. Run npx @steamfield/stacks new react-vite --sandbox and follow the brief it prints. 3. From the generated project directory, run npx @steamfield/stacks verify. Fix failures without weakening or skipping verification steps. 4. Summarize what changed and the verification result. Quote published stats only when they are available, including their interval and sample size. The stacks docs, written for agents, are at https://stacks.steamfield.io/llms.txt.

Or use the terminal

npx @steamfield/stacks new react-vite

npx @steamfield/stacks new react-vite --sandbox

Verify steps
Step	Phase	Layer	Command
install	setup	install	`bun install`
lint	check	lint	`bun run lint`
typecheck	check	typecheck	`bun run typecheck`
test	check	test	`bun run test`
build	check	build	`bun run build`
e2e	check	test	`bun run e2e`
web	serve	serve	`bun run preview --port ${PORT_WEB} --strictPort`
readme-filled	check	check	`test -s README.md && ! grep -n 'stacks:fill' README.md`

Required fragments

claude-harness

Default fragments

Optional fragments

Dependencies
Role	Packages
app	react, react-dom, react-router, @tanstack/react-query, zod
dev	vite, @vitejs/plugin-react, typescript, @types/node, @types/react, @types/react-dom, @biomejs/biome, vitest, @vitest/coverage-v8, happy-dom, @testing-library/react, @testing-library/dom, @testing-library/jest-dom, @testing-library/user-event, msw, @playwright/test

With optional fragments

posthog: posthog-js (web), happy-dom (web-dev)

Tools

bun · node · git

Usage and outcomes

Usage over time

Showing 180 days of history.

History

The 28-day green rate at each weekly observation. Gaps mean the sample was too small to publish.

Shaded band: 95% Wilson interval. Dashed rules: content changes. Missing observations remain gaps.

Stacks projects · 28 days through 4 Nov 2026. Counts rounded to 5.

Data table

Through	Green rate	Projects	Content change
5 Jul 2026	hidden: too few projects	–	–
12 Jul 2026	hidden: too few projects	955	–
19 Jul 2026	hidden: too few projects	1,985	–
26 Jul 2026	hidden: too few projects	3,650	–
2 Aug 2026	hidden: too few projects	5,405	–
9 Aug 2026	hidden: too few projects	6,310	–
16 Aug 2026	hidden: too few projects	7,270	–
23 Aug 2026	hidden: too few projects	7,830	–
30 Aug 2026	hidden: too few projects	8,520	–
6 Sept 2026	hidden: too few projects	9,175	–
13 Sept 2026	hidden: too few projects	9,820	–
20 Sept 2026	hidden: too few projects	10,250	–
27 Sept 2026	hidden: too few projects	10,640	–
4 Oct 2026	hidden: too few projects	11,245	–
11 Oct 2026	hidden: too few projects	12,050	–
18 Oct 2026	hidden: too few projects	12,730	–
25 Oct 2026	hidden: too few projects	13,515	–
1 Nov 2026	hidden: too few projects	13,865	–

Weekly projects by preset

Non-overlapping seven-day project counts, grouped by the preset used to start the project.

default
sandbox

Stacks projects per UTC week through 4 Nov 2026. Published preset counts only; hidden cells are not zero.

Data table

Week ending	Preset	Projects
5 Jul 2026	default	–
12 Jul 2026	default	625
19 Jul 2026	default	640
26 Jul 2026	default	1,065
2 Aug 2026	default	1,170
9 Aug 2026	default	1,210
16 Aug 2026	default	1,275
23 Aug 2026	default	1,410
30 Aug 2026	default	1,565
6 Sept 2026	default	1,650
13 Sept 2026	default	1,740
20 Sept 2026	default	1,685
27 Sept 2026	default	1,790
4 Oct 2026	default	2,045
11 Oct 2026	default	2,210
18 Oct 2026	default	2,125
25 Oct 2026	default	2,330
1 Nov 2026	default	2,240
5 Jul 2026	sandbox	–
12 Jul 2026	sandbox	335
19 Jul 2026	sandbox	390
26 Jul 2026	sandbox	600
2 Aug 2026	sandbox	585
9 Aug 2026	sandbox	650
16 Aug 2026	sandbox	715
23 Aug 2026	sandbox	815
30 Aug 2026	sandbox	885
6 Sept 2026	sandbox	865
13 Sept 2026	sandbox	895
20 Sept 2026	sandbox	970
27 Sept 2026	sandbox	1,050
4 Oct 2026	sandbox	1,070
11 Oct 2026	sandbox	1,230
18 Oct 2026	sandbox	1,210
25 Oct 2026	sandbox	1,290
1 Nov 2026	sandbox	1,230

By preset

Green verify outcomes by the preset chosen at scaffold time.

Not enough runs in this breakdown yet.

Stacks projects · 28 days through 4 Nov 2026. Counts rounded to 5.

By agent

Within this stack, listed alphabetically. These are project outcomes, not an agent ranking.

Not enough runs in this breakdown yet.

Stacks projects · 28 days through 4 Nov 2026. Counts rounded to 5.

Time to green

Published time summaries on a shared minutes scale. First passing test is a median; 75% reached green by the 75th percentile.

Median to green: –
75th percentile: –
First passing test: –
Verify runs to green: –

Stacks projects · 28 days through 4 Nov 2026. Counts rounded to 5.

Data table

Measure	Time / runs
Median to green	–
75th percentile	–
First passing test	–
Verify runs to green	–

Where it breaks

A run can fail more than one step. Environment failures are shown separately.

Environment blockedhidden: too few projects

Share of failed runs before first green. Environment blocked describes the machine, not the stack.

Data table

Step	Share
Environment blocked	–

What people change

Defaults people keep, and optional fragments they choose to attach.

Default, kept rate

claude-harness100%

git-hooks92%

ci-github92%

Optional, attach rate

rr17%

ce-plugin17%

posthog17%

Share of the window's 12,805 projects. Kept rate is 1 minus the without rate.

Data table

Fragment	Measure	Share
claude-harness	Kept	100%
git-hooks	Kept	92%
ci-github	Kept	92%
rr	Attached	17%
ce-plugin	Attached	17%
posthog	Attached	17%

By composition 30 fingerprints

Each row is a distinct fragment composition, with its own sample and content history.

Composition	Green rate	Seen	Change in life
defaults + ce-plugin + posthog + rr · 198b63db	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults − ci-github − git-hooks · 297b66c2	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + ce-plugin + rr − ci-github · 5293deb7	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + rr − git-hooks · 5941d0ed	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + ce-plugin + rr · 5c9e54b9	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults · 6493fd0b	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + ce-plugin − ci-github · 6550c3f3	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + posthog + rr − ci-github − git-hooks · 6efc426a	hidden: too few projects	26 Jul 2026 – 1 Nov 2026	None
defaults + rr · 6f4882b3	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + posthog · 77795ba3	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + ce-plugin + rr − ci-github − git-hooks · 7f5bb40f	hidden: too few projects	19 Jul 2026 – 1 Nov 2026	None
defaults + posthog + rr − git-hooks · 7f88f0dd	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + ce-plugin · 8edb5b95	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + ce-plugin − git-hooks · 934e10f2	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + posthog + rr − ci-github · 9ac0118b	hidden: too few projects	26 Jul 2026 – 1 Nov 2026	None
defaults + posthog − ci-github · a4ceb797	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + ce-plugin + posthog − ci-github − git-hooks · a6b18fc6	hidden: too few projects	2 Aug 2026 – 1 Nov 2026	None
defaults + rr − ci-github − git-hooks · a8462145	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + ce-plugin + posthog · bd315122	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + ce-plugin − ci-github − git-hooks · bf7cb02b	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + rr − ci-github · c2a4f174	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults − git-hooks · c87ccc95	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + posthog − git-hooks · c8e7bad1	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + ce-plugin + posthog + rr − ci-github · caa751c7	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + ce-plugin + posthog − ci-github · cf4d0920	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + posthog − ci-github − git-hooks · cfe60c67	hidden: too few projects	19 Jul 2026 – 1 Nov 2026	None
defaults + ce-plugin + rr − git-hooks · d6e0a43e	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + posthog + rr · ed190881	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None
defaults + ce-plugin + posthog − git-hooks · ee1532d6	hidden: too few projects	26 Jul 2026 – 1 Nov 2026	None
defaults − ci-github · f605572d	hidden: too few projects	12 Jul 2026 – 1 Nov 2026	None

Computed 5 Nov 2026, through 4 Nov 2026. Numbers describe stacks projects, not the ecosystem.