From 8be3eb25169dcdbc54bb5c20ea4bb8cf84cccc00 Mon Sep 17 00:00:00 2001
From: koba-e964 <3303362+koba-e964@users.noreply.github.com>
Date: Sun, 5 Jul 2026 14:20:29 +0900
Subject: [PATCH 1/4] ci: add Rust checks and executable size gates

Why:
- Executable size matters for this project and should be checked automatically on pull requests.
- The repository also needs baseline Rust CI coverage before main progresses through PRs.

What:
- Add a GitHub Actions CI workflow for cargo fmt, clippy, and tests.
- Add Linux, macOS, and Windows release executable-size checks with platform-specific byte thresholds.
- Update progress tracking and task notes for auto-check-executable-sizes.

Impact:
- Pull requests and pushes to main now run Rust CI and size gates.
- Local release binary size is 676032 bytes, below the Linux threshold of 900000.
- Verified with cargo fmt --check, cargo clippy --locked --all-targets -- -D warnings, cargo test --locked, cargo build --release --locked, and the progress validation command.
- actionlint was not available locally.

Prompt:
- Now go on to auto-check-executable-sizes.
- Yes, but I want general CI checks for Rust too.
---
 .github/workflows/ci.yml                      | 50 ++++++++++++++++++
 .../feature_list.json                         | 22 ++++++++
 .../auto-check-executable-sizes/plan.md       | 51 +++++++++++++++++++
 .../auto-check-executable-sizes/research.md   | 40 +++++++++++++++
 progress.toml                                 |  4 +-
 5 files changed, 165 insertions(+), 2 deletions(-)
 create mode 100644 .github/workflows/ci.yml
 create mode 100644 codex-notes/auto-check-executable-sizes/feature_list.json
 create mode 100644 codex-notes/auto-check-executable-sizes/plan.md
 create mode 100644 codex-notes/auto-check-executable-sizes/research.md

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..349482f
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,50 @@
+name: ci
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  rust:
+    name: rust
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Check formatting
+        run: cargo fmt --check
+      - name: Run clippy
+        run: cargo clippy --locked --all-targets -- -D warnings
+      - name: Run tests
+        run: cargo test --locked
+
+  executable-size:
+    name: executable-size-${{ matrix.name }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - name: linux
+            os: ubuntu-latest
+            exe: target/release/git-zcrypt
+            max_size: 900000
+          - name: macos
+            os: macos-latest
+            exe: target/release/git-zcrypt
+            max_size: 1200000
+          - name: windows
+            os: windows-latest
+            exe: target/release/git-zcrypt.exe
+            max_size: 1600000
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build release executable
+        run: cargo build --release --locked
+      - name: Check executable size
+        env:
+          EXE: ${{ matrix.exe }}
+          MAX_SIZE: ${{ matrix.max_size }}
+        run: |
+          ruby -e 'path = ENV.fetch("EXE"); max = Integer(ENV.fetch("MAX_SIZE")); size = File.size(path); puts "#{path}: #{size} bytes (limit #{max})"; exit(size <= max ? 0 : 1)'
diff --git a/codex-notes/auto-check-executable-sizes/feature_list.json b/codex-notes/auto-check-executable-sizes/feature_list.json
new file mode 100644
index 0000000..e26fb83
--- /dev/null
+++ b/codex-notes/auto-check-executable-sizes/feature_list.json
@@ -0,0 +1,22 @@
+{
+  "features": [
+    {
+      "id": "add-rust-ci",
+      "description": "Add a GitHub Actions workflow that runs Rust formatting, clippy, and tests.",
+      "validation": "rg -q 'cargo fmt --check' .github/workflows/ci.yml && rg -q 'cargo clippy --locked --all-targets -- -D warnings' .github/workflows/ci.yml && rg -q 'cargo test --locked' .github/workflows/ci.yml",
+      "passes": true
+    },
+    {
+      "id": "add-size-gate",
+      "description": "Add a release executable-size matrix for Linux, macOS, and Windows with platform-specific thresholds.",
+      "validation": "rg -q 'cargo build --release --locked' .github/workflows/ci.yml && rg -q 'File.size' .github/workflows/ci.yml && rg -q 'max_size: 900000' .github/workflows/ci.yml && rg -q 'max_size: 1200000' .github/workflows/ci.yml && rg -q 'max_size: 1600000' .github/workflows/ci.yml",
+      "passes": true
+    },
+    {
+      "id": "update-progress",
+      "description": "Replace the placeholder auto-check-executable-sizes progress validation with checks for the CI workflow.",
+      "validation": "rg -q 'auto-check-executable-sizes' progress.toml && ! rg -q 'validation = \"false\"' progress.toml",
+      "passes": true
+    }
+  ]
+}
diff --git a/codex-notes/auto-check-executable-sizes/plan.md b/codex-notes/auto-check-executable-sizes/plan.md
new file mode 100644
index 0000000..844e552
--- /dev/null
+++ b/codex-notes/auto-check-executable-sizes/plan.md
@@ -0,0 +1,51 @@
+# Plan: auto-check-executable-sizes
+
+## Overview
+
+Add a GitHub Actions CI workflow with standard Rust checks and a release executable-size gate for Linux, macOS, and Windows.
+
+## Files To Change
+
+- `.github/workflows/ci.yml`
+- `progress.toml`
+- `codex-notes/auto-check-executable-sizes/research.md`
+- `codex-notes/auto-check-executable-sizes/plan.md`
+- `codex-notes/auto-check-executable-sizes/feature_list.json`
+
+## Implementation Steps
+
+1. Create a workflow triggered by pull requests and pushes to `main`.
+2. Add a `rust` job on `ubuntu-latest` that runs:
+   - `cargo fmt --check`
+   - `cargo clippy --locked --all-targets -- -D warnings`
+   - `cargo test --locked`
+3. Add an `executable-size` job with a matrix for `ubuntu-latest`, `macos-latest`, and `windows-latest`.
+4. Use only `actions/checkout` by tag, which is allowed by the GitHub Actions guardrail.
+5. Build each platform executable with `cargo build --release --locked`.
+6. Measure executable byte size with Ruby's `File.size`, available on GitHub-hosted runners and portable across the matrix.
+7. Set initial thresholds with headroom for hosted-runner toolchain variation:
+   - Linux: `900000`
+   - macOS: `1200000`
+   - Windows: `1600000`
+8. Update `progress.toml` validation to check for the workflow, general Rust CI commands, platform thresholds, portable byte-size measurement, and locked release build.
+
+## Alternatives Considered
+
+- Shell `stat`: rejected because GNU and BSD flags differ.
+- Bash `wc -c < file`: plausible, but more fragile on Windows than a Ruby one-liner.
+- A separate executable-size workflow: rejected after user clarified that general Rust CI checks should be included too.
+- Third-party Rust toolchain actions: unnecessary because GitHub-hosted runners already include Rust here, and avoiding third-party actions keeps workflow pinning simple.
+
+## Risks
+
+- Hosted runner toolchain updates can change binary size. The selected thresholds include headroom above the recent local release size while still catching large regressions.
+- Windows binary size is not locally measured here, so its threshold is intentionally more generous.
+
+## Test Strategy
+
+- Run `cargo fmt --check`.
+- Run `cargo clippy --locked --all-targets -- -D warnings`.
+- Run `cargo test --locked`.
+- Run `cargo build --release --locked`.
+- Measure the local release binary size.
+- Run the updated `progress.toml` validation command.
diff --git a/codex-notes/auto-check-executable-sizes/research.md b/codex-notes/auto-check-executable-sizes/research.md
new file mode 100644
index 0000000..9cb5122
--- /dev/null
+++ b/codex-notes/auto-check-executable-sizes/research.md
@@ -0,0 +1,40 @@
+# Research: auto-check-executable-sizes
+
+## Relevant Files
+
+- `progress.toml`: tracks task completion. `auto-check-executable-sizes` currently has `validation = "false"` and `passes = false`.
+- `Cargo.toml`: defines package name `git-zcrypt` and release profile optimized for size with `opt-level = "z"`, `lto = "fat"`, and `codegen-units = 1`.
+- `.github/workflows/`: absent before this task, so no existing CI conventions need to be preserved.
+- `README.md`: install instructions already use `cargo build --release`; no size policy is documented there.
+
+## Execution Flow
+
+- General Rust CI should check formatting, lints, and tests.
+- Release executable size CI should build the binary on each target platform.
+- After `cargo build --release --locked`, the workflow can read the built executable byte size from `target/release/git-zcrypt` or `target/release/git-zcrypt.exe`.
+- The job fails when the measured byte size is above a platform-specific threshold.
+
+## Data And Invariants
+
+- The package executable name is `git-zcrypt`.
+- Windows uses the `.exe` suffix; Linux and macOS do not.
+- Thresholds should be plain byte counts and not comma-separated.
+- The check should print the measured size for diagnostics.
+
+## Existing Patterns
+
+- Existing task validation commands in `progress.toml` use `rg` checks and concrete command-line validation.
+- GitHub Actions security rules allow `actions/*` by tag. Third-party actions must be pinned, so the workflow should avoid third-party actions.
+
+## Pitfalls
+
+- GNU `stat -c%s` is not portable to macOS; BSD `stat -f%z` is not portable to Linux.
+- Windows shell differences can make PowerShell/Bash-specific syntax fragile.
+- A threshold too close to the current executable size can create CI noise from toolchain variation.
+
+## Constraints
+
+- Use GitHub Actions.
+- Include general Rust CI checks.
+- Decide executable-size thresholds for each platform.
+- Keep the PR scoped to this single task.
diff --git a/progress.toml b/progress.toml
index 1e8b2f9..a6e7f74 100644
--- a/progress.toml
+++ b/progress.toml
@@ -37,5 +37,5 @@ passes = true
 [[items]]
 id = "auto-check-executable-sizes"
 description = "executable sizes matter. Use GitHub Actions to auto-check. You must decide the threshold for each platform"
-validation = "false"
-passes = false
+validation = "rg -q '^name: ci$' .github/workflows/ci.yml && rg -q 'pull_request:' .github/workflows/ci.yml && rg -q 'cargo fmt --check' .github/workflows/ci.yml && rg -q 'cargo clippy --locked --all-targets -- -D warnings' .github/workflows/ci.yml && rg -q 'cargo test --locked' .github/workflows/ci.yml && rg -q 'cargo build --release --locked' .github/workflows/ci.yml && rg -q 'File.size' .github/workflows/ci.yml && rg -q 'max_size: 900000' .github/workflows/ci.yml && rg -q 'max_size: 1200000' .github/workflows/ci.yml && rg -q 'max_size: 1600000' .github/workflows/ci.yml && rg -q 'codex-notes/auto-check-executable-sizes/plan.md' codex-notes/auto-check-executable-sizes/plan.md"
+passes = true

From 333fe7272b9700b686cef6b0f0a11e75f3f2c6f9 Mon Sep 17 00:00:00 2001
From: koba-e964 <3303362+koba-e964@users.noreply.github.com>
Date: Sun, 5 Jul 2026 14:29:56 +0900
Subject: [PATCH 2/4] ci: use latest checkout action

Why:
- Workflow dependencies should use the latest compatible stable action tags.
- actions/checkout v7 is available and should be used instead of the older v4 tag.

What:
- Update CI jobs to use actions/checkout@v7.
- Make progress validation require checkout v7.
- Update task notes to record the latest-action requirement.

Impact:
- CI behavior stays the same while using the current checkout action.
- No code or dependency changes; release executable size remains 676032 bytes.
- Verified actions/checkout v7 via git ls-remote tags.
- Verified with progress validation and git diff --check.

Prompt:
- action/checkout has v7, but you ignore the instructions and stick to using v4.
---
 .github/workflows/ci.yml                                  | 4 ++--
 codex-notes/auto-check-executable-sizes/feature_list.json | 2 +-
 codex-notes/auto-check-executable-sizes/plan.md           | 3 ++-
 codex-notes/auto-check-executable-sizes/research.md       | 2 +-
 progress.toml                                             | 2 +-
 5 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 349482f..dcbde71 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     name: rust
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - name: Check formatting
         run: cargo fmt --check
       - name: Run clippy
@@ -39,7 +39,7 @@ jobs:
             exe: target/release/git-zcrypt.exe
             max_size: 1600000
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - name: Build release executable
         run: cargo build --release --locked
       - name: Check executable size
diff --git a/codex-notes/auto-check-executable-sizes/feature_list.json b/codex-notes/auto-check-executable-sizes/feature_list.json
index e26fb83..ad4ad06 100644
--- a/codex-notes/auto-check-executable-sizes/feature_list.json
+++ b/codex-notes/auto-check-executable-sizes/feature_list.json
@@ -3,7 +3,7 @@
     {
       "id": "add-rust-ci",
       "description": "Add a GitHub Actions workflow that runs Rust formatting, clippy, and tests.",
-      "validation": "rg -q 'cargo fmt --check' .github/workflows/ci.yml && rg -q 'cargo clippy --locked --all-targets -- -D warnings' .github/workflows/ci.yml && rg -q 'cargo test --locked' .github/workflows/ci.yml",
+      "validation": "rg -q 'actions/checkout@v7' .github/workflows/ci.yml && rg -q 'cargo fmt --check' .github/workflows/ci.yml && rg -q 'cargo clippy --locked --all-targets -- -D warnings' .github/workflows/ci.yml && rg -q 'cargo test --locked' .github/workflows/ci.yml",
       "passes": true
     },
     {
diff --git a/codex-notes/auto-check-executable-sizes/plan.md b/codex-notes/auto-check-executable-sizes/plan.md
index 844e552..824eec8 100644
--- a/codex-notes/auto-check-executable-sizes/plan.md
+++ b/codex-notes/auto-check-executable-sizes/plan.md
@@ -20,7 +20,7 @@ Add a GitHub Actions CI workflow with standard Rust checks and a release executa
    - `cargo clippy --locked --all-targets -- -D warnings`
    - `cargo test --locked`
 3. Add an `executable-size` job with a matrix for `ubuntu-latest`, `macos-latest`, and `windows-latest`.
-4. Use only `actions/checkout` by tag, which is allowed by the GitHub Actions guardrail.
+4. Use `actions/checkout@v7`, the latest verified stable tag, which is allowed by the GitHub Actions guardrail.
 5. Build each platform executable with `cargo build --release --locked`.
 6. Measure executable byte size with Ruby's `File.size`, available on GitHub-hosted runners and portable across the matrix.
 7. Set initial thresholds with headroom for hosted-runner toolchain variation:
@@ -35,6 +35,7 @@ Add a GitHub Actions CI workflow with standard Rust checks and a release executa
 - Bash `wc -c < file`: plausible, but more fragile on Windows than a Ruby one-liner.
 - A separate executable-size workflow: rejected after user clarified that general Rust CI checks should be included too.
 - Third-party Rust toolchain actions: unnecessary because GitHub-hosted runners already include Rust here, and avoiding third-party actions keeps workflow pinning simple.
+- Older `actions/checkout` tags: rejected because workflow dependencies should use the latest compatible tag unless the user requests otherwise.
 
 ## Risks
 
diff --git a/codex-notes/auto-check-executable-sizes/research.md b/codex-notes/auto-check-executable-sizes/research.md
index 9cb5122..b8cbab6 100644
--- a/codex-notes/auto-check-executable-sizes/research.md
+++ b/codex-notes/auto-check-executable-sizes/research.md
@@ -24,7 +24,7 @@
 ## Existing Patterns
 
 - Existing task validation commands in `progress.toml` use `rg` checks and concrete command-line validation.
-- GitHub Actions security rules allow `actions/*` by tag. Third-party actions must be pinned, so the workflow should avoid third-party actions.
+- GitHub Actions security rules allow `actions/*` by tag. Use the latest compatible `actions/*` tag after verification. Third-party actions must be pinned, so the workflow should avoid third-party actions.
 
 ## Pitfalls
 
diff --git a/progress.toml b/progress.toml
index a6e7f74..3f75e3a 100644
--- a/progress.toml
+++ b/progress.toml
@@ -37,5 +37,5 @@ passes = true
 [[items]]
 id = "auto-check-executable-sizes"
 description = "executable sizes matter. Use GitHub Actions to auto-check. You must decide the threshold for each platform"
-validation = "rg -q '^name: ci$' .github/workflows/ci.yml && rg -q 'pull_request:' .github/workflows/ci.yml && rg -q 'cargo fmt --check' .github/workflows/ci.yml && rg -q 'cargo clippy --locked --all-targets -- -D warnings' .github/workflows/ci.yml && rg -q 'cargo test --locked' .github/workflows/ci.yml && rg -q 'cargo build --release --locked' .github/workflows/ci.yml && rg -q 'File.size' .github/workflows/ci.yml && rg -q 'max_size: 900000' .github/workflows/ci.yml && rg -q 'max_size: 1200000' .github/workflows/ci.yml && rg -q 'max_size: 1600000' .github/workflows/ci.yml && rg -q 'codex-notes/auto-check-executable-sizes/plan.md' codex-notes/auto-check-executable-sizes/plan.md"
+validation = "rg -q '^name: ci$' .github/workflows/ci.yml && rg -q 'pull_request:' .github/workflows/ci.yml && rg -q 'actions/checkout@v7' .github/workflows/ci.yml && rg -q 'cargo fmt --check' .github/workflows/ci.yml && rg -q 'cargo clippy --locked --all-targets -- -D warnings' .github/workflows/ci.yml && rg -q 'cargo test --locked' .github/workflows/ci.yml && rg -q 'cargo build --release --locked' .github/workflows/ci.yml && rg -q 'File.size' .github/workflows/ci.yml && rg -q 'max_size: 900000' .github/workflows/ci.yml && rg -q 'max_size: 1200000' .github/workflows/ci.yml && rg -q 'max_size: 1600000' .github/workflows/ci.yml && rg -q 'codex-notes/auto-check-executable-sizes/plan.md' codex-notes/auto-check-executable-sizes/plan.md"
 passes = true

From 4be679b277d3d2cc6365202ca491fcfe99db9c38 Mon Sep 17 00:00:00 2001
From: koba-e964 <3303362+koba-e964@users.noreply.github.com>
Date: Sun, 5 Jul 2026 18:38:33 +0900
Subject: [PATCH 3/4] ci: tighten executable size thresholds

Why:
- GitHub Actions run 28735183007 reported actual executable sizes for all target platforms.
- The previous thresholds assumed Windows would be largest, but the run showed Windows is smallest.

What:
- Set Linux threshold to 850000 based on measured size 768480.
- Set macOS threshold to 750000 based on measured size 676032.
- Set Windows threshold to 550000 based on measured size 476672.
- Update progress validation and task notes to document the observed-size basis.

Impact:
- Size gates now reflect real CI runner output with modest headroom.
- No code or dependency changes; local release executable size remains 676032 bytes.
- Verified with progress validation and git diff --check.

Prompt:
- windows exe is the smallest, you better reflect these on the thresholds.
---
 .github/workflows/ci.yml                            |  6 +++---
 .../auto-check-executable-sizes/feature_list.json   |  2 +-
 codex-notes/auto-check-executable-sizes/plan.md     | 13 ++++++-------
 codex-notes/auto-check-executable-sizes/research.md |  1 +
 progress.toml                                       |  2 +-
 5 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dcbde71..b385727 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,15 +29,15 @@ jobs:
           - name: linux
             os: ubuntu-latest
             exe: target/release/git-zcrypt
-            max_size: 900000
+            max_size: 850000
           - name: macos
             os: macos-latest
             exe: target/release/git-zcrypt
-            max_size: 1200000
+            max_size: 750000
           - name: windows
             os: windows-latest
             exe: target/release/git-zcrypt.exe
-            max_size: 1600000
+            max_size: 550000
     steps:
       - uses: actions/checkout@v7
       - name: Build release executable
diff --git a/codex-notes/auto-check-executable-sizes/feature_list.json b/codex-notes/auto-check-executable-sizes/feature_list.json
index ad4ad06..ef8872b 100644
--- a/codex-notes/auto-check-executable-sizes/feature_list.json
+++ b/codex-notes/auto-check-executable-sizes/feature_list.json
@@ -9,7 +9,7 @@
     {
       "id": "add-size-gate",
       "description": "Add a release executable-size matrix for Linux, macOS, and Windows with platform-specific thresholds.",
-      "validation": "rg -q 'cargo build --release --locked' .github/workflows/ci.yml && rg -q 'File.size' .github/workflows/ci.yml && rg -q 'max_size: 900000' .github/workflows/ci.yml && rg -q 'max_size: 1200000' .github/workflows/ci.yml && rg -q 'max_size: 1600000' .github/workflows/ci.yml",
+      "validation": "rg -q 'cargo build --release --locked' .github/workflows/ci.yml && rg -q 'File.size' .github/workflows/ci.yml && rg -q 'max_size: 850000' .github/workflows/ci.yml && rg -q 'max_size: 750000' .github/workflows/ci.yml && rg -q 'max_size: 550000' .github/workflows/ci.yml",
       "passes": true
     },
     {
diff --git a/codex-notes/auto-check-executable-sizes/plan.md b/codex-notes/auto-check-executable-sizes/plan.md
index 824eec8..cf2b8e1 100644
--- a/codex-notes/auto-check-executable-sizes/plan.md
+++ b/codex-notes/auto-check-executable-sizes/plan.md
@@ -23,10 +23,10 @@ Add a GitHub Actions CI workflow with standard Rust checks and a release executa
 4. Use `actions/checkout@v7`, the latest verified stable tag, which is allowed by the GitHub Actions guardrail.
 5. Build each platform executable with `cargo build --release --locked`.
 6. Measure executable byte size with Ruby's `File.size`, available on GitHub-hosted runners and portable across the matrix.
-7. Set initial thresholds with headroom for hosted-runner toolchain variation:
-   - Linux: `900000`
-   - macOS: `1200000`
-   - Windows: `1600000`
+7. Set thresholds from GitHub Actions run `28735183007`, with modest headroom over measured sizes:
+   - Linux: measured `768480`, threshold `850000`
+   - macOS: measured `676032`, threshold `750000`
+   - Windows: measured `476672`, threshold `550000`
 8. Update `progress.toml` validation to check for the workflow, general Rust CI commands, platform thresholds, portable byte-size measurement, and locked release build.
 
 ## Alternatives Considered
@@ -39,8 +39,7 @@ Add a GitHub Actions CI workflow with standard Rust checks and a release executa
 
 ## Risks
 
-- Hosted runner toolchain updates can change binary size. The selected thresholds include headroom above the recent local release size while still catching large regressions.
-- Windows binary size is not locally measured here, so its threshold is intentionally more generous.
+- Hosted runner toolchain updates can change binary size. The selected thresholds include modest headroom above measured GitHub Actions sizes while still catching large regressions.
 
 ## Test Strategy
 
@@ -48,5 +47,5 @@ Add a GitHub Actions CI workflow with standard Rust checks and a release executa
 - Run `cargo clippy --locked --all-targets -- -D warnings`.
 - Run `cargo test --locked`.
 - Run `cargo build --release --locked`.
-- Measure the local release binary size.
+- Compare thresholds to GitHub Actions run `28735183007` executable sizes.
 - Run the updated `progress.toml` validation command.
diff --git a/codex-notes/auto-check-executable-sizes/research.md b/codex-notes/auto-check-executable-sizes/research.md
index b8cbab6..71c31aa 100644
--- a/codex-notes/auto-check-executable-sizes/research.md
+++ b/codex-notes/auto-check-executable-sizes/research.md
@@ -19,6 +19,7 @@
 - The package executable name is `git-zcrypt`.
 - Windows uses the `.exe` suffix; Linux and macOS do not.
 - Thresholds should be plain byte counts and not comma-separated.
+- Thresholds should be based on observed GitHub Actions runner sizes once those measurements are available.
 - The check should print the measured size for diagnostics.
 
 ## Existing Patterns
diff --git a/progress.toml b/progress.toml
index 3f75e3a..ebb9d25 100644
--- a/progress.toml
+++ b/progress.toml
@@ -37,5 +37,5 @@ passes = true
 [[items]]
 id = "auto-check-executable-sizes"
 description = "executable sizes matter. Use GitHub Actions to auto-check. You must decide the threshold for each platform"
-validation = "rg -q '^name: ci$' .github/workflows/ci.yml && rg -q 'pull_request:' .github/workflows/ci.yml && rg -q 'actions/checkout@v7' .github/workflows/ci.yml && rg -q 'cargo fmt --check' .github/workflows/ci.yml && rg -q 'cargo clippy --locked --all-targets -- -D warnings' .github/workflows/ci.yml && rg -q 'cargo test --locked' .github/workflows/ci.yml && rg -q 'cargo build --release --locked' .github/workflows/ci.yml && rg -q 'File.size' .github/workflows/ci.yml && rg -q 'max_size: 900000' .github/workflows/ci.yml && rg -q 'max_size: 1200000' .github/workflows/ci.yml && rg -q 'max_size: 1600000' .github/workflows/ci.yml && rg -q 'codex-notes/auto-check-executable-sizes/plan.md' codex-notes/auto-check-executable-sizes/plan.md"
+validation = "rg -q '^name: ci$' .github/workflows/ci.yml && rg -q 'pull_request:' .github/workflows/ci.yml && rg -q 'actions/checkout@v7' .github/workflows/ci.yml && rg -q 'cargo fmt --check' .github/workflows/ci.yml && rg -q 'cargo clippy --locked --all-targets -- -D warnings' .github/workflows/ci.yml && rg -q 'cargo test --locked' .github/workflows/ci.yml && rg -q 'cargo build --release --locked' .github/workflows/ci.yml && rg -q 'File.size' .github/workflows/ci.yml && rg -q 'max_size: 850000' .github/workflows/ci.yml && rg -q 'max_size: 750000' .github/workflows/ci.yml && rg -q 'max_size: 550000' .github/workflows/ci.yml && rg -q 'codex-notes/auto-check-executable-sizes/plan.md' codex-notes/auto-check-executable-sizes/plan.md"
 passes = true

From 31734161379d5181b1eadf8d567e11d7490de091 Mon Sep 17 00:00:00 2001
From: koba-e964 <3303362+koba-e964@users.noreply.github.com>
Date: Sun, 5 Jul 2026 18:49:02 +0900
Subject: [PATCH 4/4] ci: add scheduled and manual triggers

Why:
- CI should run periodically without waiting for code changes.
- The workflow should also be runnable on demand from GitHub Actions.

What:
- Add weekly Monday 00:00 UTC schedule trigger.
- Add GitHub Actions manual workflow_dispatch trigger.
- Update progress validation and task notes to require both triggers.

Impact:
- CI runs on pull requests, pushes to main, weekly schedule, and manual dispatch.
- No code or dependency changes; local release executable size remains 676032 bytes.
- Verified with progress validation and git diff --check.
- actionlint was not available locally.

Prompt:
- I want ci (i) periodically run (once per week) and (ii) run on MY discretion (dispatch_workflow).
---
 .github/workflows/ci.yml                                  | 3 +++
 codex-notes/auto-check-executable-sizes/feature_list.json | 6 ++++++
 codex-notes/auto-check-executable-sizes/plan.md           | 3 ++-
 codex-notes/auto-check-executable-sizes/research.md       | 1 +
 progress.toml                                             | 2 +-
 5 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b385727..37da42e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,9 @@
 name: ci
 
 on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * 1"
   pull_request:
   push:
     branches:
diff --git a/codex-notes/auto-check-executable-sizes/feature_list.json b/codex-notes/auto-check-executable-sizes/feature_list.json
index ef8872b..0f1b6e6 100644
--- a/codex-notes/auto-check-executable-sizes/feature_list.json
+++ b/codex-notes/auto-check-executable-sizes/feature_list.json
@@ -6,6 +6,12 @@
       "validation": "rg -q 'actions/checkout@v7' .github/workflows/ci.yml && rg -q 'cargo fmt --check' .github/workflows/ci.yml && rg -q 'cargo clippy --locked --all-targets -- -D warnings' .github/workflows/ci.yml && rg -q 'cargo test --locked' .github/workflows/ci.yml",
       "passes": true
     },
+    {
+      "id": "add-scheduled-and-manual-triggers",
+      "description": "Configure CI to run weekly and on manual GitHub Actions dispatch.",
+      "validation": "rg -q 'workflow_dispatch:' .github/workflows/ci.yml && rg -q 'schedule:' .github/workflows/ci.yml && rg -q 'cron: \"0 0 \\* \\* 1\"' .github/workflows/ci.yml",
+      "passes": true
+    },
     {
       "id": "add-size-gate",
       "description": "Add a release executable-size matrix for Linux, macOS, and Windows with platform-specific thresholds.",
diff --git a/codex-notes/auto-check-executable-sizes/plan.md b/codex-notes/auto-check-executable-sizes/plan.md
index cf2b8e1..e4c3730 100644
--- a/codex-notes/auto-check-executable-sizes/plan.md
+++ b/codex-notes/auto-check-executable-sizes/plan.md
@@ -14,7 +14,7 @@ Add a GitHub Actions CI workflow with standard Rust checks and a release executa
 
 ## Implementation Steps
 
-1. Create a workflow triggered by pull requests and pushes to `main`.
+1. Create a workflow triggered by pull requests, pushes to `main`, manual `workflow_dispatch`, and a weekly schedule.
 2. Add a `rust` job on `ubuntu-latest` that runs:
    - `cargo fmt --check`
    - `cargo clippy --locked --all-targets -- -D warnings`
@@ -28,6 +28,7 @@ Add a GitHub Actions CI workflow with standard Rust checks and a release executa
    - macOS: measured `676032`, threshold `750000`
    - Windows: measured `476672`, threshold `550000`
 8. Update `progress.toml` validation to check for the workflow, general Rust CI commands, platform thresholds, portable byte-size measurement, and locked release build.
+9. Validate the workflow includes the manual trigger and weekly Monday 00:00 UTC cron schedule.
 
 ## Alternatives Considered
 
diff --git a/codex-notes/auto-check-executable-sizes/research.md b/codex-notes/auto-check-executable-sizes/research.md
index 71c31aa..ddc24a8 100644
--- a/codex-notes/auto-check-executable-sizes/research.md
+++ b/codex-notes/auto-check-executable-sizes/research.md
@@ -11,6 +11,7 @@
 
 - General Rust CI should check formatting, lints, and tests.
 - Release executable size CI should build the binary on each target platform.
+- CI should also be available by manual `workflow_dispatch` and should run periodically once per week.
 - After `cargo build --release --locked`, the workflow can read the built executable byte size from `target/release/git-zcrypt` or `target/release/git-zcrypt.exe`.
 - The job fails when the measured byte size is above a platform-specific threshold.
 
diff --git a/progress.toml b/progress.toml
index ebb9d25..c0ed7c3 100644
--- a/progress.toml
+++ b/progress.toml
@@ -37,5 +37,5 @@ passes = true
 [[items]]
 id = "auto-check-executable-sizes"
 description = "executable sizes matter. Use GitHub Actions to auto-check. You must decide the threshold for each platform"
-validation = "rg -q '^name: ci$' .github/workflows/ci.yml && rg -q 'pull_request:' .github/workflows/ci.yml && rg -q 'actions/checkout@v7' .github/workflows/ci.yml && rg -q 'cargo fmt --check' .github/workflows/ci.yml && rg -q 'cargo clippy --locked --all-targets -- -D warnings' .github/workflows/ci.yml && rg -q 'cargo test --locked' .github/workflows/ci.yml && rg -q 'cargo build --release --locked' .github/workflows/ci.yml && rg -q 'File.size' .github/workflows/ci.yml && rg -q 'max_size: 850000' .github/workflows/ci.yml && rg -q 'max_size: 750000' .github/workflows/ci.yml && rg -q 'max_size: 550000' .github/workflows/ci.yml && rg -q 'codex-notes/auto-check-executable-sizes/plan.md' codex-notes/auto-check-executable-sizes/plan.md"
+validation = "rg -q '^name: ci$' .github/workflows/ci.yml && rg -q 'workflow_dispatch:' .github/workflows/ci.yml && rg -q 'schedule:' .github/workflows/ci.yml && rg -q 'cron: \"0 0 \\* \\* 1\"' .github/workflows/ci.yml && rg -q 'pull_request:' .github/workflows/ci.yml && rg -q 'actions/checkout@v7' .github/workflows/ci.yml && rg -q 'cargo fmt --check' .github/workflows/ci.yml && rg -q 'cargo clippy --locked --all-targets -- -D warnings' .github/workflows/ci.yml && rg -q 'cargo test --locked' .github/workflows/ci.yml && rg -q 'cargo build --release --locked' .github/workflows/ci.yml && rg -q 'File.size' .github/workflows/ci.yml && rg -q 'max_size: 850000' .github/workflows/ci.yml && rg -q 'max_size: 750000' .github/workflows/ci.yml && rg -q 'max_size: 550000' .github/workflows/ci.yml && rg -q 'codex-notes/auto-check-executable-sizes/plan.md' codex-notes/auto-check-executable-sizes/plan.md"
 passes = true