dinwwwh · Oct 3, 2026 · Oct 3, 2026
diff --git a/package.json b/package.json
@@ -6,7 +6,7 @@
   "type": "module",
   "scripts": {
     "prepare": "pnpm run check prepare --pre-commit",
-    "check": "pnpm exec --filter=./packages/uncheck unbuild --stub && uncheck",
+    "check": "pnpm exec --filter=./packages/uncheck obuild --stub && uncheck",
     "fix": "pnpm run check --fix",
     "test": "pnpm run -r test && vitest run",
     "test:coverage": "pnpm run -r test && vitest run --coverage",
@@ -20,12 +20,12 @@
     "@vitest/coverage-v8": "^5.0.1",
     "bumpp": "^12.3.0",
     "changelogithub": "^15.0.5",
+    "obuild": "^0.4.43",
     "oxfmt": "^0.68.0",
     "oxlint": "^1.83.0",
     "pkg-pr-new": "^0.0.88",
     "sherif": "^1.13.0",
     "typescript": "^7.0.2",
-    "unbuild": "^3.6.1",
     "uncheck": "workspace:*",
     "vitest": "^5.0.1"
   },

diff --git a/packages/uncheck/build.config.ts b/packages/uncheck/build.config.ts
@@ -1,7 +1,12 @@
-import { defineBuildConfig } from 'unbuild'
+import { defineBuildConfig } from 'obuild/config'
 
 export default defineBuildConfig({
-  rollup: {
-    inlineDependencies: true,
-  },
+  entries: [
+    {
+      type: 'bundle',
+      input: ['./src/bin.ts', './src/presets/oxfmt.ts', './src/presets/oxlint.ts'],
+      minifyLibs: true,
+      dts: { sourcemap: false },
+    },
+  ],
 })
diff --git a/packages/uncheck/package.json b/packages/uncheck/package.json
@@ -49,7 +49,7 @@
     "./package.json": "./package.json"
   },
   "scripts": {
-    "prepack": "unbuild"
+    "prepack": "obuild"
   },
   "devDependencies": {
     "@effect/platform-node": "^4.0.0-rc.116",

diff --git a/packages/uncheck/src/bin.ts b/packages/uncheck/src/bin.ts
@@ -5,4 +5,4 @@ import { enableCompileCache } from 'node:module'
 // The cache only covers modules compiled after it is on, hence the import that follows it.
 enableCompileCache()
 
-await import('./cli')
+await import('./cli.ts')
diff --git a/packages/uncheck/src/checks/oxfmt.ts b/packages/uncheck/src/checks/oxfmt.ts
@@ -1,8 +1,8 @@
 import { Effect } from 'effect'
 
-import { NothingToCheck } from '../errors'
-import { argvBatches, resolveBin } from '../tool'
-import type { Check } from '../types'
+import { NothingToCheck } from '../errors.ts'
+import { argvBatches, resolveBin } from '../tool.ts'
+import type { Check } from '../types.ts'
 
 export const oxfmt: Check = {
   name: 'oxfmt',

diff --git a/packages/uncheck/src/checks/oxlint.ts b/packages/uncheck/src/checks/oxlint.ts
@@ -1,8 +1,8 @@
 import { Effect } from 'effect'
 
-import { NothingToCheck } from '../errors'
-import { argvBatches, resolveBin } from '../tool'
-import type { Check } from '../types'
+import { NothingToCheck } from '../errors.ts'
+import { argvBatches, resolveBin } from '../tool.ts'
+import type { Check } from '../types.ts'
 
 export const oxlint: Check = {
   name: 'oxlint',

diff --git a/packages/uncheck/src/checks/sherif.ts b/packages/uncheck/src/checks/sherif.ts
@@ -2,10 +2,10 @@ import process from 'node:process'
 
 import { Effect, Path, Predicate } from 'effect'
 
-import { CannotCheck, NothingToCheck } from '../errors'
-import { isWorkspaceRoot, readJson } from '../files'
-import { resolveBin } from '../tool'
-import type { Check } from '../types'
+import { CannotCheck, NothingToCheck } from '../errors.ts'
+import { isWorkspaceRoot, readJson } from '../files.ts'
+import { resolveBin } from '../tool.ts'
+import type { Check } from '../types.ts'
 
 const WORKSPACE_FILES = new Set(['package.json', 'pnpm-workspace.yaml'])
 

diff --git a/packages/uncheck/src/checks/tsc.ts b/packages/uncheck/src/checks/tsc.ts
@@ -3,7 +3,7 @@ import { posix } from 'node:path'
 import { Cache, Effect, FileSystem, Option, Path, Predicate } from 'effect'
 import { parse as parseJsonc } from 'jsonc-parser'
 
-import { CannotCheck, NothingToCheck } from '../errors'
+import { CannotCheck, NothingToCheck } from '../errors.ts'
 import {
   ancestors,
   fileKind,
@@ -12,11 +12,11 @@ import {
   listProjectFiles,
   readJson,
   resolveFolders,
-} from '../files'
-import { git } from '../git'
-import type { Bin } from '../tool'
-import { argvBatches, resolveBin } from '../tool'
-import type { Check } from '../types'
+} from '../files.ts'
+import { git } from '../git.ts'
+import type { Bin } from '../tool.ts'
+import { argvBatches, resolveBin } from '../tool.ts'
+import type { Check } from '../types.ts'
 
 /**
  * TypeScript replaces this token at the start of `files`, `include`, `exclude` and path-valued

diff --git a/packages/uncheck/src/cli.ts b/packages/uncheck/src/cli.ts
@@ -5,12 +5,12 @@ import * as NodeServices from '@effect/platform-node/NodeServices'
 import { Console, Effect } from 'effect'
 import { CliConfig, CliError, CliOutput, Command, GlobalFlag } from 'effect/unstable/cli'
 
-import pkg from '../package.json'
-import { hooks } from './commands/hooks'
-import { init } from './commands/init'
-import { prepare } from './commands/prepare'
-import { staged } from './commands/staged'
-import { uncheck } from './commands/uncheck'
+import pkg from '../package.json' with { type: 'json' }
+import { hooks } from './commands/hooks/index.ts'
+import { init } from './commands/init.ts'
+import { prepare } from './commands/prepare.ts'
+import { staged } from './commands/staged.ts'
+import { uncheck } from './commands/uncheck.ts'
 
 // Any failed write (a reader gone after `| head`, a closed terminal, a full disk) would otherwise end
 // the run before `staged` puts unstaged changes back, so output errors are ignored.

diff --git a/packages/uncheck/src/commands/hooks/index.ts b/packages/uncheck/src/commands/hooks/index.ts
@@ -1,7 +1,7 @@
 import { Command } from 'effect/unstable/cli'
 
-import { install } from './install'
-import { run } from './run'
+import { install } from './install.ts'
+import { run } from './run.ts'
 
 export const hooks = Command.make('hooks').pipe(
   Command.withDescription('Agent hooks: `install` writes the configs, `run` is what they execute'),

diff --git a/packages/uncheck/src/commands/hooks/install.ts b/packages/uncheck/src/commands/hooks/install.ts
@@ -4,13 +4,13 @@ import { Console, Effect, FileSystem, Path, Predicate, Stdio } from 'effect'
 import { Argument, Command, Prompt } from 'effect/unstable/cli'
 import { type ParseError, parse as parseJsonc, printParseErrorCode } from 'jsonc-parser'
 
-import { userError } from '../../errors'
-import { readJson, readTextIfExists } from '../../files'
-import { gitLocation } from '../../git'
-import { detectExec, invokes } from '../../pm'
-import { bold, dim, green } from '../../style'
-import type { CheckSelection } from '../uncheck'
-import { cwdFlag, selectionArgs, selectionFlags, validateSelection } from '../uncheck'
+import { userError } from '../../errors.ts'
+import { readJson, readTextIfExists } from '../../files.ts'
+import { gitLocation } from '../../git.ts'
+import { detectExec, invokes } from '../../pm.ts'
+import { bold, dim, green } from '../../style.ts'
+import type { CheckSelection } from '../uncheck.ts'
+import { cwdFlag, selectionArgs, selectionFlags, validateSelection } from '../uncheck.ts'
 
 // Copilot (30 s) and CodeBuddy (60 s) kill a typecheck at their default timeout and end the turn as
 // if no hook ran.

diff --git a/packages/uncheck/src/commands/hooks/run.ts b/packages/uncheck/src/commands/hooks/run.ts
@@ -6,11 +6,11 @@ import { stripVTControlCharacters } from 'node:util'
 import { Console, Effect, FileSystem, Option, Path, Predicate, Stdio, Stream } from 'effect'
 import { Command, Flag } from 'effect/unstable/cli'
 
-import { StopBlocked, userError } from '../../errors'
-import { fileKind, isOutside, listChangedFiles, slashedRelative } from '../../files'
-import { git, refusesRepository } from '../../git'
-import { captureLines } from '../../tool'
-import { fixFlag, followLinks, runChecks, selectionFlags } from '../uncheck'
+import { StopBlocked, userError } from '../../errors.ts'
+import { fileKind, isOutside, listChangedFiles, slashedRelative } from '../../files.ts'
+import { git, refusesRepository } from '../../git.ts'
+import { captureLines } from '../../tool.ts'
+import { fixFlag, followLinks, runChecks, selectionFlags } from '../uncheck.ts'
 
 export const run = Command.make(
   'run',

diff --git a/packages/uncheck/src/commands/init.ts b/packages/uncheck/src/commands/init.ts
@@ -4,12 +4,12 @@ import { Console, Effect, FileSystem, Option, Path, Predicate, Stdio } from 'eff
 import { Command, Flag, Prompt } from 'effect/unstable/cli'
 import { ChildProcess, ChildProcessSpawner } from 'effect/unstable/process'
 
-import { userError } from '../errors'
-import { ancestors, firstFile, isWorkspaceRoot, readJson } from '../files'
-import { detectExec, detectPackageManager } from '../pm'
-import { bold, dim, green, listed } from '../style'
-import { resolveBin } from '../tool'
-import type { AgentId } from './hooks/install'
+import { userError } from '../errors.ts'
+import { ancestors, firstFile, isWorkspaceRoot, readJson } from '../files.ts'
+import { detectExec, detectPackageManager } from '../pm.ts'
+import { bold, dim, green, listed } from '../style.ts'
+import { resolveBin } from '../tool.ts'
+import type { AgentId } from './hooks/install.ts'
 import {
   AGENTS,
   agentHookCommand,
@@ -18,9 +18,9 @@ import {
   hasOwnHook,
   validateAgentHookDir,
   writeAgentHooks,
-} from './hooks/install'
-import { writePreCommitHook } from './prepare'
-import { cwdFlag } from './uncheck'
+} from './hooks/install.ts'
+import { writePreCommitHook } from './prepare.ts'
+import { cwdFlag } from './uncheck.ts'
 
 const NO_SELECTION = { only: [], required: [], skipped: [] }
 

diff --git a/packages/uncheck/src/commands/prepare.ts b/packages/uncheck/src/commands/prepare.ts
@@ -3,13 +3,13 @@ import { randomBytes } from 'node:crypto'
 import { Console, Effect, FileSystem, Option, Path, Result, Schedule } from 'effect'
 import { Command, Flag } from 'effect/unstable/cli'
 
-import { platformMessage, userError } from '../errors'
-import { readTextIfExists } from '../files'
-import { git, gitLocation, refusesRepository } from '../git'
-import { detectExec, invokes } from '../pm'
-import { bold, dim, green, red } from '../style'
-import type { CheckSelection } from './uncheck'
-import { cwdFlag, selectionArgs, selectionFlags, validateSelection } from './uncheck'
+import { platformMessage, userError } from '../errors.ts'
+import { readTextIfExists } from '../files.ts'
+import { git, gitLocation, refusesRepository } from '../git.ts'
+import { detectExec, invokes } from '../pm.ts'
+import { bold, dim, green, red } from '../style.ts'
+import type { CheckSelection } from './uncheck.ts'
+import { cwdFlag, selectionArgs, selectionFlags, validateSelection } from './uncheck.ts'
 
 const HOOK_COMMAND = 'uncheck staged'
 const HEADER = '#!/bin/sh\n# Written by `uncheck prepare`, run it again to change the command.\n'

diff --git a/packages/uncheck/src/commands/staged.ts b/packages/uncheck/src/commands/staged.ts
@@ -3,12 +3,20 @@ import process from 'node:process'
 import { Console, Effect, FileSystem, Path, Ref } from 'effect'
 import { Command, Flag } from 'effect/unstable/cli'
 
-import { userError } from '../errors'
-import { inNodeModules } from '../files'
-import { git, gitBytes, GitFailed, gitLocation, gitPaths, rawDiff, refusesRepository } from '../git'
-import { dim, green, listFiles, red } from '../style'
-import { argvBatches, logLines } from '../tool'
-import { checkPaths, cwdFlag, fixFlag, selectionFlags, validateSelection } from './uncheck'
+import { userError } from '../errors.ts'
+import { inNodeModules } from '../files.ts'
+import {
+  git,
+  gitBytes,
+  GitFailed,
+  gitLocation,
+  gitPaths,
+  rawDiff,
+  refusesRepository,
+} from '../git.ts'
+import { dim, green, listFiles, red } from '../style.ts'
+import { argvBatches, logLines } from '../tool.ts'
+import { checkPaths, cwdFlag, fixFlag, selectionFlags, validateSelection } from './uncheck.ts'
 
 /** What became of the unstaged hunks that were set aside while the checks ran. */
 interface Unstaged {

diff --git a/packages/uncheck/src/commands/uncheck.ts b/packages/uncheck/src/commands/uncheck.ts
@@ -8,16 +8,16 @@ import type { CliError } from 'effect/unstable/cli'
 import { Argument, Command, Flag } from 'effect/unstable/cli'
 import type { ChildProcessSpawner } from 'effect/unstable/process'
 
-import { oxfmt } from '../checks/oxfmt'
-import { oxlint } from '../checks/oxlint'
-import { sherif } from '../checks/sherif'
-import { tsc } from '../checks/tsc'
-import { CheckFailed, platformMessage, userError } from '../errors'
-import { checkableFiles, listProjectFiles, resolvePaths } from '../files'
-import type { GitFailed } from '../git'
-import { bold, dim, green, listed, listFiles, red } from '../style'
-import { captureLines, execute, logLines } from '../tool'
-import type { Check, CheckCommand, CheckName, CheckOutcome } from '../types'
+import { oxfmt } from '../checks/oxfmt.ts'
+import { oxlint } from '../checks/oxlint.ts'
+import { sherif } from '../checks/sherif.ts'
+import { tsc } from '../checks/tsc.ts'
+import { CheckFailed, platformMessage, userError } from '../errors.ts'
+import { checkableFiles, listProjectFiles, resolvePaths } from '../files.ts'
+import type { GitFailed } from '../git.ts'
+import { bold, dim, green, listed, listFiles, red } from '../style.ts'
+import { captureLines, execute, logLines } from '../tool.ts'
+import type { Check, CheckCommand, CheckName, CheckOutcome } from '../types.ts'
 
 const CHECKS: ReadonlyArray<Check> = [sherif, oxlint, oxfmt, tsc]
 

diff --git a/packages/uncheck/src/errors.ts b/packages/uncheck/src/errors.ts
@@ -2,7 +2,7 @@ import type { PlatformError } from 'effect'
 import { Data, Effect } from 'effect'
 import { CliError } from 'effect/unstable/cli'
 
-import type { CheckOutcome } from './types'
+import type { CheckOutcome } from './types.ts'
 
 export class NothingToCheck extends Data.TaggedError('NothingToCheck')<{
   readonly reason: string

diff --git a/packages/uncheck/src/files.ts b/packages/uncheck/src/files.ts
@@ -4,8 +4,8 @@ import { Effect, FileSystem, Path, Predicate } from 'effect'
 import type { ChildProcessSpawner } from 'effect/unstable/process'
 import { Minimatch } from 'minimatch'
 
-import { userError } from './errors'
-import { gitPaths, rawDiff } from './git'
+import { userError } from './errors.ts'
+import { gitPaths, rawDiff } from './git.ts'
 
 export type ProjectFiles = Effect.Effect<
   ReadonlyArray<string>,

diff --git a/packages/uncheck/src/pm.ts b/packages/uncheck/src/pm.ts
@@ -2,7 +2,7 @@ import process from 'node:process'
 
 import { Effect, FileSystem, Option, Path } from 'effect'
 
-import { ancestors, fileKind, readJson } from './files'
+import { ancestors, fileKind, readJson } from './files.ts'
 
 // Hooks never get a terminal to ask in, so plain `npx` and `bunx` would download and run the latest
 // release whenever the project has none, and Yarn 1 wraps a run in lines of its own on stdout, where

diff --git a/packages/uncheck/src/tool.ts b/packages/uncheck/src/tool.ts
@@ -4,9 +4,9 @@ import process from 'node:process'
 import { Console, Effect, Path, Predicate, Stream } from 'effect'
 import { ChildProcess, ChildProcessSpawner } from 'effect/unstable/process'
 
-import { ancestors, readJson } from './files'
-import { colors } from './style'
-import type { CheckCommand } from './types'
+import { ancestors, readJson } from './files.ts'
+import { colors } from './style.ts'
+import type { CheckCommand } from './types.ts'
 
 export interface Bin {
   readonly name: string

diff --git a/packages/uncheck/src/types.ts b/packages/uncheck/src/types.ts
@@ -1,9 +1,9 @@
 import type { Effect, FileSystem, Path, PlatformError } from 'effect'
 import type { ChildProcessSpawner } from 'effect/unstable/process'
 
-import type { CannotCheck, NothingToCheck } from './errors'
-import type { ProjectFiles } from './files'
-import type { Bin } from './tool'
+import type { CannotCheck, NothingToCheck } from './errors.ts'
+import type { ProjectFiles } from './files.ts'
+import type { Bin } from './tool.ts'
 
 export type CheckName = 'sherif' | 'oxlint' | 'oxfmt' | 'tsc'
 

diff --git a/packages/uncheck/tests/utils/project.ts b/packages/uncheck/tests/utils/project.ts
@@ -58,8 +58,7 @@ export interface Run {
 }
 
 const PACKAGE = fileURLToPath(new URL('../..', import.meta.url))
-const REGISTER = fileURLToPath(new URL('register.ts', import.meta.url))
-export const CLI = [process.execPath, '--import', REGISTER, join(PACKAGE, 'src/bin.ts')] as const
+export const CLI = [process.execPath, join(PACKAGE, 'src/bin.ts')] as const
 
 /** What the CLI and the tools it runs read above a project, so one above the tests leaks into them all. */
 const PROJECT_MARKERS = [

diff --git a/packages/uncheck/tests/utils/register.ts b/packages/uncheck/tests/utils/register.ts
diff --git a/packages/uncheck/tsconfig.json b/packages/uncheck/tsconfig.json
@@ -1,6 +1,7 @@
 {
   "extends": "uncheck/tsconfig/middleapi/lib",
   "compilerOptions": {
+    "module": "ESNext",
     "types": ["node"]
   },
   "include": ["./package.json", "src"],