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1e7f66e
initial doc, remove effect patches, upgrade versions
patroza Feb 24, 2026
10e4a51
apply the cli convert
patroza Feb 24, 2026
a37260d
auto
patroza Feb 24, 2026
2bcfba8
no need here.
patroza Feb 24, 2026
d8d4989
convert
patroza Feb 25, 2026
8ad5e13
tag, what tag?
patroza Feb 25, 2026
625c95f
m
patroza Feb 25, 2026
f37326b
refactor: enhance type definitions in MiddlewareMaker and RpcMiddleware
jfet97 Feb 25, 2026
8e7311c
update agent
patroza Feb 26, 2026
a2e8b24
align failure on error
patroza Feb 26, 2026
c81eacb
deprecations and cleanups
patroza Feb 26, 2026
85bc8b1
Context->ServiceMap
patroza Feb 26, 2026
952b523
improve names
patroza Feb 26, 2026
450c111
remove obsolete Tag module
patroza Feb 26, 2026
79acd9a
Add deprecated remapping for Context
patroza Feb 26, 2026
5f093a6
help with discovering ServiceMap
patroza Feb 26, 2026
c7a33f4
update guide
patroza Feb 26, 2026
62fbecf
findings
patroza Feb 26, 2026
5f54a66
wtf
patroza Feb 26, 2026
7e5eae6
finds and updates
patroza Feb 26, 2026
4bb99a2
vue-1
patroza Feb 26, 2026
f7796c7
convert more
patroza Feb 26, 2026
f65d541
docs etc
patroza Feb 26, 2026
1e8ecd7
(re)introduce `ServiceMap.Opaque`
patroza Feb 26, 2026
6ea8ec8
update tests
patroza Feb 27, 2026
cfa22af
replace TagId and TagMakeId with new Opaque
patroza Feb 27, 2026
2720833
fix(vue): fix type checking - TaggedRequestResult types & DecodingSer…
patroza Feb 27, 2026
6050942
proper fix for WithDependencies tests
patroza Feb 27, 2026
29e3478
add Check
patroza Feb 27, 2026
21fdf53
vue-components.. ?
patroza Feb 27, 2026
70ece09
Migration: Step 5 vue-components - Type checking passing ✅
patroza Feb 28, 2026
777b9a5
more progress, can't say it's good..
patroza Mar 2, 2026
6429394
update to Beta23
patroza Mar 2, 2026
c7e6551
cleanup Reference
patroza Mar 2, 2026
7e9e02b
add cli effectv4 changeset
patroza Mar 2, 2026
9f7552e
bs
patroza Mar 2, 2026
c74f5c5
fix
patroza Mar 2, 2026
098c0fe
bs
patroza Mar 2, 2026
00f558c
chore: Update versions
patroza Mar 2, 2026
f82f21e
update active cli
patroza Mar 2, 2026
845d22e
cleanup
patroza Mar 2, 2026
735a5d4
remove effect req from codegen
patroza Mar 2, 2026
880df28
prep versioning
patroza Mar 3, 2026
6012860
version packages
patroza Mar 3, 2026
64786af
update to beta25 and clean up
patroza Mar 3, 2026
865a4e9
update for @effect-*/*
patroza Mar 3, 2026
02f27bd
migrate: replace @effect-atom with @effect/atom packages and update R…
patroza Mar 3, 2026
ec6ed08
chore: Update versions
patroza Mar 3, 2026
9a9c0d4
finish replace Schema Codec
patroza Mar 3, 2026
3887256
fixes
patroza Mar 3, 2026
c4c53f8
chore: Update versions
patroza Mar 3, 2026
72e586a
yieldable
patroza Mar 3, 2026
8558433
fix nonsense
patroza Mar 3, 2026
66558b1
how it should be
patroza Mar 3, 2026
d6dc72b
fix errors, schemas, context.
patroza Mar 3, 2026
3a7abae
bs fix
patroza Mar 3, 2026
4b989e5
chore: Update versions
patroza Mar 3, 2026
0a089cb
meh
patroza Mar 3, 2026
15ddde6
fix usses
patroza Mar 4, 2026
88b90c3
fix withDefault
patroza Mar 4, 2026
3fbc28d
chore: Update versions
patroza Mar 4, 2026
016c5a3
isObject change
patroza Mar 4, 2026
90dbc4e
chore: Update versions
patroza Mar 4, 2026
df75041
fix Req
patroza Mar 4, 2026
df697c2
chore: Update versions
patroza Mar 4, 2026
418b80e
fix lock
patroza Mar 4, 2026
a9e5f48
chore: Update versions
patroza Mar 4, 2026
62b4989
fix requestAttr
patroza Mar 4, 2026
0d139f2
chore: Update versions
patroza Mar 4, 2026
1f336bc
fix RequestName
patroza Mar 4, 2026
8d766e1
chore: Update versions
patroza Mar 4, 2026
5727372
ndjson
patroza Mar 4, 2026
57aa398
chore: Update versions
patroza Mar 4, 2026
1f2adcf
## Fix: support unquoted --flags in wrap commands for effect/unstable…
jfet97 Mar 4, 2026
9cb4541
test: enhance argv patching tests for various flag syntaxes
jfet97 Mar 4, 2026
f94a18b
improve: use JSON integrated schema
patroza Mar 5, 2026
2202ca7
fix codegen plugin
patroza Mar 5, 2026
8f7b2b4
lint fix
patroza Mar 5, 2026
b97f358
update packages
patroza Mar 5, 2026
688c4b3
updates
patroza Mar 5, 2026
01c70d0
add changeset
patroza Mar 5, 2026
408bcf1
chore: Update versions
patroza Mar 5, 2026
80b0647
move spec
patroza Mar 7, 2026
c599423
prepare changeset publishing spec
patroza Mar 7, 2026
622d54a
apply changeset changes
patroza Mar 7, 2026
5d5f964
chore: Update versions
patroza Mar 7, 2026
541bbd0
Cleanup
patroza Mar 7, 2026
e7b4f4a
add Update spec
patroza Mar 7, 2026
53d4b2e
lint fix
patroza Mar 7, 2026
d078871
update spec
patroza Mar 7, 2026
5434ad5
fix vitest
patroza Mar 7, 2026
de2359d
chore: bump effect deps to 4.0.0-beta.28
patroza Mar 7, 2026
9050569
chore: make root testsuite non-bailing
patroza Mar 7, 2026
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5 changes: 5 additions & 0 deletions .changeset/brave-bushes-fold.md
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@@ -0,0 +1,5 @@
---
"@effect-app/infra": patch
---

fix lock
6 changes: 6 additions & 0 deletions .changeset/clever-pets-follow.md
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---
"effect-app": patch
"@effect-app/infra": patch
---

fix bs
9 changes: 8 additions & 1 deletion .changeset/config.json
Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,14 @@
"$schema": "https://unpkg.com/@changesets/config@2.2.0/schema.json",
"changelog": "@changesets/cli/changelog",
"commit": false,
"fixed": [],
"fixed": [
[
"effect-app",
"@effect-app/infra",
"@effect-app/vue",
"@effect-app/vue-components"
]
],
"linked": [],
"access": "public",
"baseBranch": "main",
Expand Down
11 changes: 11 additions & 0 deletions .changeset/crisp-seals-care.md
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---
"@effect-app/eslint-codegen-model": patch
"@effect-app/eslint-shared-config": patch
"@effect-app/vue-components": patch
"effect-app": patch
"@effect-app/infra": patch
"@effect-app/cli": patch
"@effect-app/vue": patch
---

Beta25
7 changes: 7 additions & 0 deletions .changeset/legal-weeks-raise.md
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@@ -0,0 +1,7 @@
---
"effect-app": patch
"@effect-app/infra": patch
"@effect-app/vue": patch
---

adapt isObject change
5 changes: 5 additions & 0 deletions .changeset/petite-tables-cover.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"effect-app": patch
---

fix withDefault
29 changes: 29 additions & 0 deletions .changeset/pre.json
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@@ -0,0 +1,29 @@
{
"mode": "pre",
"tag": "beta",
"initialVersions": {
"@effect-app/cli": "2.0.0",
"effect-app": "3.16.0",
"@effect-app/eslint-codegen-model": "1.47.0",
"@effect-app/eslint-shared-config": "0.5.6",
"@effect-app/infra": "3.10.0",
"@effect-app/vue": "2.94.0",
"@effect-app/vue-components": "3.2.0"
},
"changesets": [
"brave-bushes-fold",
"clever-pets-follow",
"crisp-seals-care",
"legal-weeks-raise",
"petite-tables-cover",
"salty-weeks-walk",
"shaggy-waves-slide",
"sixty-meals-sin",
"slimy-lions-laugh",
"slow-readers-wave",
"tasty-fans-accept",
"twenty-seas-grab",
"wet-sites-fall",
"witty-bats-return"
]
}
9 changes: 9 additions & 0 deletions .changeset/quick-seals-relate.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
---
"@effect-app/cli": patch
"effect-app": patch
"@effect-app/infra": patch
"@effect-app/vue": patch
"@effect-app/vue-components": patch
---

Update Effect dependencies to 4.0.0-beta.28 across workspace packages.
5 changes: 5 additions & 0 deletions .changeset/salty-weeks-walk.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"effect-app": patch
---

fix request attr
5 changes: 5 additions & 0 deletions .changeset/shaggy-waves-slide.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"effect-app": patch
---

fix Req
5 changes: 5 additions & 0 deletions .changeset/sixty-meals-sin.md
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@@ -0,0 +1,5 @@
---
"effect-app": patch
---

fix RequestName
5 changes: 5 additions & 0 deletions .changeset/slimy-lions-laugh.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"@effect-app/vue": patch
---

fix atom references
6 changes: 6 additions & 0 deletions .changeset/slow-readers-wave.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
---
"effect-app": patch
"@effect-app/infra": patch
---

switch to NdJson
8 changes: 8 additions & 0 deletions .changeset/tasty-fans-accept.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,8 @@
---
"@effect-app/vue-components": patch
"effect-app": patch
"@effect-app/infra": patch
"@effect-app/vue": patch
---

Configure Changesets fixed versioning for public packages.
8 changes: 8 additions & 0 deletions .changeset/twenty-seas-grab.md
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@@ -0,0 +1,8 @@
---
"@effect-app/eslint-codegen-model": patch
"@effect-app/eslint-shared-config": patch
"effect-app": patch
"@effect-app/cli": patch
---

update all teh tings
8 changes: 8 additions & 0 deletions .changeset/wet-sites-fall.md
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@@ -0,0 +1,8 @@
---
"@effect-app/vue-components": major
"effect-app": major
"@effect-app/infra": major
"@effect-app/vue": major
---

Fix Schema->Codec
9 changes: 9 additions & 0 deletions .changeset/witty-bats-return.md
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@@ -0,0 +1,9 @@
---
"@effect-app/eslint-codegen-model": major
"effect-app": major
"@effect-app/infra": major
"@effect-app/vue": major
"@effect-app/vue-components": major
---

Effect v4 beta
6 changes: 6 additions & 0 deletions .gitmodules
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[submodule "repos/effect-v3"]
path = repos/effect-v3
url = https://github.com/Effect-TS/effect.git
[submodule "repos/effect-v4"]
path = repos/effect-v4
url = https://github.com/Effect-TS/effect-smol.git
102 changes: 102 additions & 0 deletions .specs/Migrate_to_Effect_v4.md
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# Migration

Right now we are using Effect v3 - effect (repos/effect-v3)
The task is about migrating to Effect v4 - effect-smol (repos/effect-v4)

There are migration guides:
- Announcement: https://effect.website/blog/releases/effect/40-beta/
- [v3 to v4 general](/repos/effect-v4/MIGRATION.md)
- [Schema v3 to v4](/repos/effect-v4/packages/effect/SCHEMA.md#migration-from-v3)

## Steps

0. First upgrade/replace all effect v3 packages with v4 counterparts in the repository. Make sure no references to v3 packages remain. Remove v3 patches.
1. Convert `cli` - as it's a standalone utility using minimal effect libraries.
2. Convert `effect-app` core
- remove `Unify.ts`, it's obsolete
3. Convert `infra`
- remove `api/internal/middlewares.ts` and all it's reexports from `api/middlewares.ts`
4. Convert `vue`
5. Convert `vue-components`

Each step will be completed individually, and only move on to the next step when the current is done succesfully.
For each step we should find out if we can convert 1:1 or certain things are missing preventing that.
Commit every task you complete for every step.

## Rules

- Always check `AGENTS.md` in the root of each repository to understand rules.
- Ignore the `#### New Features` section, instead follow `#### Migrations` for `### Mandatory Validation Steps`
- Consult the earlier mentioned Migration Guides for hints
- Create task files for each Step in markdown files under `task/Migration` directory, and track progress and findings in each.
- Save all conversion findings in a `task/findings.md` file to speed up future migrations. Read this file for every step!
- Never replace any function argument type with `any`
- Never cast to `any` as a "fix" (`(s as any)`)! nor recasting via `any` e.g `as any as S.Schema<any>`. or `unknown`: e.g `as unknown as S.Schema<any>`. Maybe you first need to fix other files.
<!-- - Never replace function bodies with placeholders. Real fixes only. Ask if you can't find a real solution. -->
- Consult the migration guides instead of making up assumptions. e.g `Schema<A, I, R>` is now `Codec<A, I, R>`
- Prioritise first fixing files that are dependencies of others (via direct or indirect imports).
- Migrate and fix files in dependency order

## Process

- Always consult `findings.md` to help with migration or to fix build errors.
- When not finding the solution there, inspect the migration guides (this file, and the migration guides listed at the top), and source code in the `repos` folder
- Once finding a new solution, or fix mistakes, update `findings.md`

## Conversion

We start with an as close as possible 1:1 conversion.

1. replace `effect`, `@effect/*`, `@effect-*/*` package.json references, with their respective v4 counter parts (most `@effect/*` and `@effect-*/*` have moved into `effect/unstable/*`), rerun `pnpm i`
2. replace `effect`, `@effect/*` and `@effect-*/*` typescript references, with their respective v4 counter parts (most @effect/* have moved into `effect/unstable/*`)
3. use new names of v4 functions and modules accordingly

## Conversion hints

- Use `.asEffect()` when trying to use `Option`, `Either` (`Result`), `Reference`, `Service` etc with `Effect` combinators
- `Effect.all()` with homogenous `Config`, `Either` (`Result`) or `Option` values, should be replaced with `Config.all()` and so forth. When heterogenous involved, use `.asEffect()`
- `Effect.dieMessage("a message")` is now `Effect.die("a message")`
- Do not convert Schema classes to non classes (const+interface), instead use the `Schema.Opaque` helper if needed.
- `Array.filterMap` is replacable by effect's `Array.filter` with a `Filter.Filter` that filters and maps at the same time, using `Result` instead of `Option` it seems.
- If `pipe()` has been defined on a parent class, don't fix it by using `override pipe()` in a child class, just remove the method and rely on the inherited method.


### `Effect.Service` migration to `ServiceMap.Service`

Before:
```ts
class GHGistService extends Effect.Service<GHGistService>()("GHGistService", {
dependencies: [RunCommandService.Default],
effect: Effect.gen(function*() {
// ...
})
} {}
```

After:
```ts
class GHGistService extends ServiceMap.Service<GHGistService>()("GHGistService", {
make: Effect.gen(function*() {
// ...
})
}) {
static DefaultWithoutDependencies = Layer.effect(this, this.make)
static Default = this.DefaultWithoutDependencies.pipe(
Layer.provide(RunCommandService.Default)
)
}
```

## Out of scope

- detect naming patterns we adopted from effect v3 in our libraries, and change them to match v4 naming patterns.
- general refactorings and improvements

You can document these for follow-ups, in a task/followups.md file.

## Context

- The effect source code repository is located inside `repos/effect`
- The effect-smol source code repository is located inside `repos/effect-smol`

All repos can be kept uptodate with `git submodule foreach git pull origin main` and `git submodule foreach pnpm i`.
61 changes: 61 additions & 0 deletions .specs/Migrate_to_Effect_v4/01-cli.md
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# Step 1: `@effect-app/cli` Migration to Effect v4

## Status: Complete

## Files Changed

- `packages/cli/package.json` — updated dependencies
- `packages/cli/src/extract.ts` — minor API fix
- `packages/cli/src/gist.ts` — major API changes
- `packages/cli/src/index.ts` — CLI and platform API changes
- `packages/cli/src/os-command.ts` — service class + process API migration

## Changes Made

### package.json
- Removed `@effect/cli`, `@effect/platform`, `@effect/platform-node`
- Added `effect: ^4.0.0-beta.5`
- Updated `@effect/platform-node` to `^4.0.0-beta.5`

### os-command.ts
- `Effect.Service` → `ServiceMap.Service` (now in `effect` directly, not `@effect/platform`)
- `Command` / `CommandExecutor` → `ChildProcess` from `effect/unstable/process`
- `ChildProcessSpawner` from `effect/unstable/process/ChildProcessSpawner`
- Removed stale `@effect-diagnostics-next-line missingEffectServiceDependency:off` comment (rule renamed in v4)

### extract.ts
- `Order.string` → `Order.String` (capitalized in v4)

### gist.ts
- `ParseResult` removed from imports; added `SchemaIssue`, `SchemaTransformation`
- `GistEntryDecoded` class using `GistEntry.transformOrFail<>()` (v3 Schema.Class API, removed in v4) →
replaced with `const GistEntryDecoded = GistEntry.pipe(Schema.decodeTo(targetStruct, SchemaTransformation.transformOrFail({decode, encode})))`
and `export interface GistEntryDecoded extends Schema.Schema.Type<typeof GistEntryDecoded> {}`
- Inside decode function: `ParseResult.Composite` / `ParseResult.Type` → `SchemaIssue.InvalidValue(Option.some(value), { message })`
- `Array.isNonEmptyArray` → `Array.isArrayNonEmpty`
- `Schema.optionalWith({ default: () => ({}), nullable: true, exact: true })` →
`Schema.optional(Schema.NullOr(schema))` + `?? {}` at usage site
- `Schema.Record({ key: K, value: V })` → `Schema.Record(K, V)` (args changed in v4)
- `Effect.catchAll((e) => Effect.dieMessage(...))` →
`Effect.mapError((e) => new Error(...)).pipe(Effect.orDie)`
- `Effect.dieMessage("msg")` → `Effect.die(new Error("msg"))`
- `Effect.orElse(() => fallback)` → removed (was dead code after using suppressed helpers)
- `Schema.parseJson(S)` → `Schema.fromJsonString(S)`
- `Schema.decodeUnknown(S)` → `Schema.decodeUnknownEffect(S)`
- `Schema.encodeUnknown(S)` → `Schema.encodeUnknownEffect(S)`
- `Effect.all({ company: Config.string(...), env: Config.string(...).pipe(Config.withDefault("local-dev")) })` →
separate `yield* Config.string(...)` calls + `Config.withDefault(() => "local-dev")` (now takes `LazyArg`)
- `Array.filterMap(arr, fn)` → native `arr.flatMap(fn)`
- `Object.entries(configFromYaml.gists)` → `Object.entries(configFromYaml.gists ?? {})`
- Removed stale `@effect-diagnostics-next-line missingEffectServiceDependency:off` comment

### index.ts
- `Args` → `Argument` (renamed in v4 CLI)
- `Options` → `Flag` (renamed in v4 CLI)
- `fs.watch(path, { recursive: true })` → `fs.watch(path)` (no options in v4)
- `Command.Config` namespace not exported → changed `makeCommandWithWrap` to use unconstrained `Config` generic and `any` handler param
- `NodeRuntime.runMain` no longer pipeable → wrap entire effect in `NodeRuntime.runMain(...)` call

## Findings

See `task/findings.md` for all v3→v4 API mapping findings.
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