Add Codex workspace cron skill

Author: boxp

docker/codex-workspace/Dockerfile

@@ -103,6 +103,7 @@ ENV LANG=en_US.UTF-8 \
     PATH=/home/boxp/.local/bin:/home/boxp/go/bin:/usr/local/bin:/usr/bin:/bin
 
 COPY entrypoint.sh /usr/local/bin/codex-workspace-entrypoint
+COPY skills/ /opt/codex-workspace/skills/
 RUN chmod 0755 /usr/local/bin/codex-workspace-entrypoint
 
 EXPOSE 2222 3456

docker/codex-workspace/entrypoint.sh

@@ -4,8 +4,14 @@ set -euo pipefail
 install -d -m 0755 /run/sshd
 install -d -o boxp -g boxp -m 0755 /home/boxp
 install -d -o boxp -g boxp -m 0700 /home/boxp/.ssh
+install -d -o boxp -g boxp -m 0755 /home/boxp/.codex/skills
 install -d -o boxp -g boxp -m 0755 /home/boxp/ghq
 
+if [[ -d /opt/codex-workspace/skills ]]; then
+  cp -a /opt/codex-workspace/skills/. /home/boxp/.codex/skills/
+  chown -R boxp:boxp /home/boxp/.codex/skills
+fi
+
 if [[ -f /tmp/authorized_keys/authorized_keys ]]; then
   install -o boxp -g boxp -m 0600 /tmp/authorized_keys/authorized_keys /home/boxp/.ssh/authorized_keys
 fi

docker/codex-workspace/skills/codex-workspace-cron/SKILL.md

@@ -0,0 +1,89 @@
+---
+name: codex-workspace-cron
+description: Manage Codex workspace scheduled prompt jobs in boxp/lolice. Use when the user asks to list, show, add, edit, enable, disable, delete, or manually run Codex cron jobs backed by argoproj/codex-workspace jobs.yaml and Kubernetes CronJobs.
+---
+
+# Codex Workspace Cron
+
+Use this skill to operate the Codex workspace prompt scheduler from inside the Codex workspace.
+
+The scheduler is GitOps-managed in `boxp/lolice`:
+
+- `argoproj/codex-workspace/cron-configmap.yaml`
+  - embedded `jobs.yaml` registry
+  - `prompt-*.md` prompt bodies
+  - runner scripts
+- `argoproj/codex-workspace/cronjob.yaml`
+  - one Kubernetes CronJob per registered job
+
+## Workflow
+
+1. Work in a `boxp/lolice` worktree, preferably using the `worktree` skill.
+2. Use the bundled script for manifest CRUD:
+
+   ```bash
+   python3 <this-skill>/scripts/codex_cron_jobs.py --repo /path/to/lolice list
+   ```
+
+3. After changes, run:
+
+   ```bash
+   kustomize build argoproj/codex-workspace
+   git diff --check
+   ```
+
+4. Commit and update the `boxp/lolice` PR.
+
+## Commands
+
+List jobs:
+
+```bash
+python3 <this-skill>/scripts/codex_cron_jobs.py --repo /path/to/lolice list
+```
+
+Show one job:
+
+```bash
+python3 <this-skill>/scripts/codex_cron_jobs.py --repo /path/to/lolice show <job-id>
+```
+
+Add a job:
+
+```bash
+python3 <this-skill>/scripts/codex_cron_jobs.py --repo /path/to/lolice add \
+  --id daily-report \
+  --name "Daily report" \
+  --schedule "0 22 * * *" \
+  --prompt-file prompt-daily-report.md \
+  --prompt "調査して日本語で報告してください。" \
+  --enabled false
+```
+
+Update metadata or prompt:
+
+```bash
+python3 <this-skill>/scripts/codex_cron_jobs.py --repo /path/to/lolice update daily-report \
+  --schedule "30 22 * * *" \
+  --prompt "新しいプロンプト"
+```
+
+Enable or disable:
+
+```bash
+python3 <this-skill>/scripts/codex_cron_jobs.py --repo /path/to/lolice enable daily-report
+python3 <this-skill>/scripts/codex_cron_jobs.py --repo /path/to/lolice disable daily-report
+```
+
+Delete:
+
+```bash
+python3 <this-skill>/scripts/codex_cron_jobs.py --repo /path/to/lolice delete daily-report
+```
+
+## Safety
+
+- New jobs should default to disabled unless the user explicitly asks to enable them.
+- Keep `jobs.yaml enabled` and CronJob `spec.suspend` consistent.
+- Do not run `kubectl` mutations unless the user explicitly asks for live cluster operations.
+- For manual live runs, prefer documenting the command from `argoproj/codex-workspace/cron.md`.