How do I install the System Prompt Sync skill?

Run npx skillmds@latest add marktantongco/system-prompt-sync in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is System Prompt Sync safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with System Prompt Sync?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is System Prompt Sync free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published System Prompt Sync?

marktantongco (@marktantongco) published this skill. Their other Agent Skills are listed on their SkillMD profile.

System Prompt Sync by marktantongco

Name: System Prompt Sync
Author: marktantongco

File contents

context: Automatically sync the system prompt (AGENTS.md) across all git repositories on the system when a new version tag (prompt-v*) is created. Use this skill to eliminate manual prompt propagation after updates.

instructions:

Monitor /home/hive/workspace for new git tags matching prompt-v*
When a new tag is detected, checkout the tagged AGENTS.md: git -C /home/hive/workspace show <tag>:AGENTS.md > /tmp/new-prompt.md
Find all git repos: find /home/hive -name .git -type d 2>/dev/null | sed 's|/.git||'
Copy /tmp/new-prompt.md to each repo root as AGENTS.md
Copy /home/hive/workspace/skills/dashboard.html to each repo root as dashboard.html
For each repo with changes: cd <repo> && OPENCODE_YOLO=true git add AGENTS.md dashboard.html && OPENCODE_YOLO=true git commit -m "Sync system prompt <tag>"
Optional push (only if yolo mode confirmed): OPENCODE_YOLO=true git push

constraints:

Never modify non-git directories
Never overwrite files other than AGENTS.md
Never push to remote repos unless explicitly confirmed or yolo mode active
Never delete existing files in target repos
Always verify repo has changes before committing (avoid empty commits)

examples:

Trigger: New tag prompt-v2.1 created Action: Copies updated AGENTS.md to all 15 detected git repos, commits changes locally with YOLO mode enabled
Trigger: prompt-v3.0 tagged with yolo mode confirmed Action: Copies prompt, commits AND pushes to all repos automatically using OPENCODE_YOLO=true

cron:

Schedule: Daily at 2 AM (0 2 * * *)
Command: cd /workspace/skills/system-prompt-sync && bash startup-check.sh | grep -q "mismatch" && git -C /home/hive/workspace tag -l "prompt-v*" | tail -1 | xargs -I {} git -C /home/hive/workspace show {}:AGENTS.md > /tmp/latest-prompt.md && for repo in $(find /home/hive -name .git -type d | sed 's|/.git||'); do cp /tmp/latest-prompt.md "$repo/AGENTS.md" && cd "$repo" && OPENCODE_YOLO=true git add AGENTS.md && OPENCODE_YOLO=true git commit -m "Nightly prompt sync" || true; done
Log output to: /workspace/worklog.md

---name: system-prompt-syncdescription: Automatically syncs the system prompt (AGENTS.md) across all git repositories when a new version tag is created. Use to eliminate manual prompt propagation after updates.---context: Automatically sync the system prompt (AGENTS.md) across all git repositories on the system when a new version tag (prompt-v*) is created. Use this skill to eliminate manual prompt propagation after updates.instructions:1. Monitor /home/hive/workspace for new git tags matching `prompt-v*`2. When a new tag is detected, checkout the tagged AGENTS.md: `git -C /home/hive/workspace show <tag>:AGENTS.md > /tmp/new-prompt.md`3. Find all git repos: `find /home/hive -name .git -type d 2>/dev/null | sed 's|/.git||'`4. Copy /tmp/new-prompt.md to each repo root as AGENTS.md5. Copy /home/hive/workspace/skills/dashboard.html to each repo root as dashboard.html6. For each repo with changes: `cd <repo> && OPENCODE_YOLO=true git add AGENTS.md dashboard.html && OPENCODE_YOLO=true git commit -m "Sync system prompt <tag>"`7. Optional push (only if yolo mode confirmed): `OPENCODE_YOLO=true git push`constraints:- Never modify non-git directories- Never overwrite files other than AGENTS.md- Never push to remote repos unless explicitly confirmed or yolo mode active- Never delete existing files in target repos- Always verify repo has changes before committing (avoid empty commits)examples:1. Trigger: New tag `prompt-v2.1` created Action: Copies updated AGENTS.md to all 15 detected git repos, commits changes locally with YOLO mode enabled2. Trigger: `prompt-v3.0` tagged with yolo mode confirmed Action: Copies prompt, commits AND pushes to all repos automatically using OPENCODE_YOLO=truecron:- Schedule: Daily at 2 AM (`0 2 * * *`)- Command: `cd /workspace/skills/system-prompt-sync && bash startup-check.sh | grep -q "mismatch" && git -C /home/hive/workspace tag -l "prompt-v*" | tail -1 | xargs -I {} git -C /home/hive/workspace show {}:AGENTS.md > /tmp/latest-prompt.md && for repo in $(find /home/hive -name .git -type d | sed 's|/.git||'); do cp /tmp/latest-prompt.md "$repo/AGENTS.md" && cd "$repo" && OPENCODE_YOLO=true git add AGENTS.md && OPENCODE_YOLO=true git commit -m "Nightly prompt sync" || true; done`- Log output to: `/workspace/worklog.md`

Frequently asked questions

System Prompt Sync