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Concurrent Subagents Share One Checkout And Contend On Head

Category: General  ·  Sub-category: agents-skills-meta  ·  Last updated:
Two or more subagents dispatched at the same repository by absolute path run in ONE working directory and contend on HEAD, so one agent's commit lands on another's branch and a rebase retargets a branch its author does not own. Use when: (1) about to dispatch more than one agent that will run git in the same repo, whether or not their FILES overlap; (2) a pre-launch check concluded "no collision" on the basis of file-overlap or different-repos reasoning; (3) `git log` on your branch shows a commit you did not author, or `git status -sb` reports ahead/behind counts that make no sense for a branch you just pushed; (4) an agent reports it rebased or committed and the result appears on someone else's ref; (5) `git branch -a --contains <sha>` returns only a branch belonging to different work. File-overlap analysis cannot see this class: the contention is on HEAD and the index, not on paths. The fix is worktree isolation at dispatch, not coordination after the fact.
Security AStatic scan found no risk patternsHow grading works ›

What this skill does

Concurrent Subagents Share One Checkout And Contend On Head is a community-contributed Claude Code skill in the agents-skills-meta sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/concurrent-subagents-share-one-checkout-and-contend-on-head/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when: (1) about to dispatch more than one agent that will run git in the same repo, whether or not their FILES overlap; (2) a pre-launch check concluded "no collision" on the basis of file-overlap or different-repos reasoning; (3) `git log` on your branch shows a commit you did not author, or `git status -sb` reports ahead/behind counts that make no sense for a branch you just pushed; (4) an agent reports it rebased or committed and the result appears on someone else's ref; (5) `git branch -a --contains <sha>` returns only a branch belonging to different work. File-overlap analysis cannot see this class: the contention is on HEAD and the index, not on paths.

Who uses this skill

The Concurrent Subagents Share One Checkout And Contend On Head Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 191,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/concurrent-subagents-share-one-checkout-and-contend-on-head
curl -L https://claudskills.com/skills/concurrent-subagents-share-one-checkout-and-contend-on-head/SKILL.md \
  -o ~/.claude/skills/concurrent-subagents-share-one-checkout-and-contend-on-head/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/concurrent-subagents-share-one-checkout-and-contend-on-head/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/concurrent-subagents-share-one-checkout-and-contend-on-head/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\concurrent-subagents-share-one-checkout-and-contend-on-head\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

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See pricing → Download desktop app

Frequently asked questions

How do I install the Concurrent Subagents Share One Checkout And Contend On Head Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/concurrent-subagents-share-one-checkout-and-contend-on-head/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Concurrent Subagents Share One Checkout And Contend On Head skill do?
Two or more subagents dispatched at the same repository by absolute path run in ONE working directory and contend on HEAD, so one agent's commit lands on another's branch and a rebase retargets a branch its author does not own. Use when: (1) about to dispatch more than one agent that will run git in the same repo, whether or not their FILES overlap; (2) a pre-launch check concluded "no collision" on the basis of file-overlap or different-repos reasoning; (3) `git log` on your branch shows a commit you did not author, or `git status -sb` reports ahead/behind counts that make no sense for a branch you just pushed; (4) an agent reports it rebased or committed and the result appears on someone else's ref; (5) `git branch -a --contains <sha>` returns only a branch belonging to different work. File-overlap analysis cannot see this class: the contention is on HEAD and the index, not on paths. The fix is worktree isolation at dispatch, not coordination after the fact.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Concurrent Subagents Share One Checkout And Contend On Head skill?
Use Concurrent Subagents Share One Checkout And Contend On Head when your Claude Code task falls under the General category — specifically in the agents skills meta area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Concurrent Subagents Share One Checkout And Contend On Head" or describe the task and let Claude pick). Browse related skills at /category/general/.
What is a Claude Code skill and how does the Concurrent Subagents Share One Checkout And Contend On Head skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Concurrent Subagents Share One Checkout And Contend On Head is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
MrBinnacle. (2026). Concurrent Subagents Share One Checkout And Contend On Head [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/concurrent-subagents-share-one-checkout-and-contend-on-head/
BibTeX
@misc{concurrent-subagents-share-one-checkout-and-contend-on-head-2026,
  author    = {MrBinnacle},
  title     = {Concurrent Subagents Share One Checkout And Contend On Head [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/concurrent-subagents-share-one-checkout-and-contend-on-head/}
}

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Security scan

Grade A · scanned 2026-08-25 — free static scan against the OWASP Agentic Skills Top 10.

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