---
title: "effected"
description: "Effect v4 development skills, a GitHub Actions and GitHub API suite, specialist subagents (developer, reviewer, action-engineer), and a session briefing, distilled from the @effected packages and the official Effect-TS v"
canonical: https://agentpluginsdirectory.com/plugins/effected
last-updated: 2026-10-12
---

# effected
Effect v4 development skills, a GitHub Actions and GitHub API suite, specialist subagents (developer, reviewer, action-engineer), and a session briefing, distilled from the @effected packages and the official Effect-TS v4 guides.
- Slug: effected
- Publisher: C. Spencer Beggs
- Repository: https://github.com/spencerbeggs/effected
- Manifest: plugin/builds/copilot/plugin.json
- Version: 0.38.0
- License: MIT
- Category (editorial): other
- Skills: 32 (actions-cache-and-artifacts, actions-inputs-outputs, actions-reporting, actions-runtime, actions-state-and-secrets, bootstrapping-an-action, building-a-format-package, building-a-github-action, building-schemastore-schemas, design-patterns, designing-an-action, effect-api-extractor-bases, effect-v4-cli, effect-v4-house-style, effect-v4-idioms, effect-v4-mcp, effect-v4-module-index, effect-v4-observability, effect-v4-planning, effect-v4-schema, effect-v4-services-layers, effect-v4-source-lookup, effect-v4-testing, effected-packages, github-api, github-app-tokens, hardening-a-parser-port, release-and-publish, running-commands-and-tools, structuring-an-action, supply-chain-attestation, testing-actions)
- MCP servers: 0
- Stars: 4
- Repository created: 2026-07-02
- Repository last pushed: 2026-10-12
- Publisher type: User
- Listing: https://agentpluginsdirectory.com/plugins/effected
- Schema: https://agent-plugins.org/schemas/1.0.0/plugin.schema.json

## What effected does, in the publisher's words

The unglamorous app plumbing that Effect leaves to you, done right.

A pnpm monorepo (npm org @effected) of Effect v4 libraries designed v4-first, not lifted from their v3 predecessors. The repo holds libraries only; the applications that consume them stay in their own repos.

Every CLI, dev tool, and service reaches for the same machinery: reading and writing config files, parsing package.json and tsconfig.json, resolving semver ranges and runtime versions, walking a monorepo's workspaces and lockfiles, shelling out to git, finding the right XDG directory, keeping a little durable state on disk. effected gives you each of those as a typed Effect schema or service, malformed input surfaces as a typed error instead of a thrown exception, IO sits behind layers you can swap in a test, and the whole set shares one design so the pieces fit together.

From the project README, punctuation lightly normalized. Full text: https://raw.githubusercontent.com/spencerbeggs/effected/HEAD/README.md