From 1b4086f3b578225ea9ec365c5e742b4456e0faad Mon Sep 17 00:00:00 2001
From: Hyeonseo Kim <dodok8@gmail.com>
Date: Tue, 27 Oct 2026 14:15:40 +0900
Subject: [PATCH 1/3] =?UTF-8?q?=ED=85=8C=EC=8A=A4=ED=8A=B8=20=EB=8C=80?=
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From 1affdc23c9f42ff1b4e06f43e2f7d2467a59eaf3 Mon Sep 17 00:00:00 2001
From: Hyeonseo Kim <dodok8@gmail.com>
Date: Tue, 27 Oct 2026 14:21:42 +0900
Subject: [PATCH 2/3] Split test using node test shard option

Assisted-by: Codex:gpt-5.6-sol

Prompt
```
Inspect current workflow and using test shard option to split test case
and runner.
```
---
 .github/workflows/main.yaml | 7 +++++--
 mise.toml                   | 4 +++-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 3df34fa..0eb3136 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -38,15 +38,18 @@ jobs:
           MISE_LOG_LEVEL: ${{ runner.debug == '1' && 'trace' || 'info' }}
 
   test:
+    name: test (${{ matrix.os }}, shard ${{ matrix.shard }})
     timeout-minutes: 30
     concurrency:
-      group: test-${{ github.workflow }}-${{ github.ref }}-${{ matrix.os }}
+      group: >-
+        test-${{ github.workflow }}-${{ github.ref }}-${{ matrix.os }}-${{ matrix.shard }}
       cancel-in-progress: false
       queue: max
     strategy:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
+        shard: ["1/2", "2/2"]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v7.0.1
@@ -57,7 +60,7 @@ jobs:
           cache: true
           experimental: true
           log_level: ${{ runner.debug == '1' && 'trace' || 'info' }}
-      - run: mise test
+      - run: mise test --shard ${{ matrix.shard }}
         env:
           MISE_LOG_LEVEL: ${{ runner.debug == '1' && 'trace' || 'info' }}
           LOGTAPE_TEST_MODE: ${{ runner.debug == '1' && 'always' || 'on-failure' }}
diff --git a/mise.toml b/mise.toml
index 57a094b..618e4fd 100644
--- a/mise.toml
+++ b/mise.toml
@@ -250,6 +250,7 @@ description = "Run tests"
 depends = ["build"]
 usage = '''
 flag "-d --debug" help="Run tests in debug mode"
+flag "--shard <shard>" help="Run one test shard as INDEX/TOTAL"
 '''
 run = '''
 #!/usr/bin/env nu
@@ -260,7 +261,8 @@ if "usage_debug" in $env {
   $env.LOGTAPE_TEST_MODE = "on-failure"
   $env.LOGTAPE_TEST_LOWEST_LEVEL = "debug"
 }
-pnpm run --parallel --recursive test --test-concurrency=1
+let shard = (if "usage_shard" in $env { [$"--test-shard=($env.usage_shard)"] } else { [] })
+node --test ...$shard "packages/*/src/**/*.test.ts"
 '''
 
 [tasks."test:postgres"]

From 03452ed803944e02773abc62c95dd6ec50e4bc94 Mon Sep 17 00:00:00 2001
From: Hyeonseo Kim <dodok8@gmail.com>
Date: Tue, 27 Oct 2026 14:47:43 +0900
Subject: [PATCH 3/3] Split test suite to 3

---
 .github/workflows/main.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 0eb3136..012aee9 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -49,7 +49,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        shard: ["1/2", "2/2"]
+        shard: ["1/3", "2/3", "3/3"]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v7.0.1