Vigia

npm · npm:effect

effect active

The missing standard library for TypeScript, for writing production-grade software.

The latest stable version of effect is 4.1.4, published on 2026-11-11. Verified by Vigia on 2026-11-12.

Latest stable version4.1.4
Published2026-11-11 04:54:17 UTC
Installnpm install effect@latest
Requires (engines)none declared
Peer dependencies—
Dist-tagsrc: 4.0.0-rc.118 beta: 4.0.0-beta.107 prev: 3.22.4 latest: 4.1.4 staging: 4.1.4 snapshot: 0.0.0-snapshot-6ebc752baf28354006ca2a0ae783a5bccf5de9ad
LicenseMIT
Advisories on latest versionnone known
Last verified2026-11-12 05:59:17 UTC
Sourcesapi.deps.dev, registry.npmjs.org, registry.npmjs.org

Maintenance

Activityactive
Last stable release2026-11-11 04:54:17 UTC · 1 days ago
Stable releases in the last 12 months42
Published versions499

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

VersionPublished
4.1.42026-11-11 04:54:17 UTC
4.1.32026-11-10 03:21:45 UTC
4.1.22026-11-02 04:27:38 UTC
4.1.12026-10-30 21:53:39 UTC
4.1.02026-10-29 04:09:37 UTC
4.0.72026-10-28 03:36:20 UTC
3.22.42026-10-22 20:49:57 UTC
4.0.62026-10-22 17:47:13 UTC
3.22.32026-10-16 01:02:44 UTC
4.0.52026-10-15 01:27:07 UTC
4.0.42026-10-13 05:25:42 UTC
4.0.32026-10-11 12:58:29 UTC
4.0.22026-10-07 18:21:31 UTC
4.0.12026-10-05 01:15:35 UTC
4.0.02026-10-01 03:11:28 UTC
3.22.22026-09-09 06:35:32 UTC
3.22.12026-07-30 04:29:21 UTC
3.22.02026-07-13 15:33:51 UTC
3.21.52026-07-13 15:04:54 UTC
3.21.42026-06-18 20:49:22 UTC

Showing the 20 most recent of 288 versions. JSON

Upgrade guides for this package

Give your AI agent these facts

Vigia is a free MCP server: your coding agent checks versions, breaking changes and vulnerabilities before it writes code. No signup, no API key.

claude mcp add --transport http vigia https://vigia.coredls.cloud/mcp

Add to CursorAdd to VS Code★ Star on GitHub

Any other MCP client
{ "mcpServers": { "vigia": { "url": "https://vigia.coredls.cloud/mcp" } } }

Agent skill (SKILL.md): tells the agent when to use Vigia · GitHub Action for pull requests

Frequently asked questions

What is the latest version of effect?

The latest stable version of effect is 4.1.4, published on 2026-11-11. Verified by Vigia on 2026-11-12.

How do I install the latest version of effect?

Run npm install effect@latest. The latest stable version is 4.1.4 (verified 2026-11-12).

Is effect deprecated?

No. effect is not marked as deprecated in the registry.

Which Node.js version does effect require?

effect 4.1.4 does not declare a Node.js version requirement.

Does effect 4.1.4 have known vulnerabilities?

No known advisories affect effect 4.1.4 according to the data Vigia checks.

Is effect still maintained?

effect published 42 stable releases in the last 12 months; the most recent was 1 days ago. Activity: active.

Observed changes

Related packages

Badges for your README

Show the latest version, maintenance status and deprecation status of this package. Copy the Markdown:

[![version](https://vigia.coredls.cloud/badge/npm/effect/version.svg)](https://vigia.coredls.cloud/npm/effect)
[![maintained](https://vigia.coredls.cloud/badge/npm/effect/maintained.svg)](https://vigia.coredls.cloud/npm/effect)
[![status](https://vigia.coredls.cloud/badge/npm/effect/status.svg)](https://vigia.coredls.cloud/npm/effect)

For agents

GET https://vigia.coredls.cloud/v1/packages/npm/effect
GET https://vigia.coredls.cloud/v1/packages/npm/effect/versions/{version}