Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteWindows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallIf two or more coding agents edit the same checkout at the same time, they can overwrite each other’s uncommitted changes. Giving each writing agent its own Git worktree removes that shared working directory, so each agent edits its own files on its own branch. A worktree separates files and branch state. It does not isolate dependencies, ports, databases, or credentials, and it does not remove the need to merge the resulting branches later.
What a worktree separates and what it leaves shared
A Git worktree is an additional working directory attached to the same repository. Each one has its own checked-out branch and its own files on disk. All worktrees of a repository share the underlying object store, along with branches and other references. That is why a second worktree is cheap compared with a second full clone: Git does not copy the history again.
As an Amazon Associate I earn from qualifying purchases.
Andrew J. Pyle, whose article “A worktree per agent, so they never step on each other” was published on August 13, 2026, describes a worktree the same way: a separate checkout in its own directory and branch that shares the repository’s object store. The table below states what that does and does not cover.
| Item | Separate per worktree | Shared across worktrees |
|---|---|---|
| Working-tree files on disk | Yes | No |
| Checked-out branch (HEAD) | Yes | No |
| Staging area (index) | Yes | No |
| Repository history and object data | No | Yes |
| Branches and other refs | No | Yes |
| Installed dependencies, virtual environments, build output | Not separated by Git; depends on whether each directory has its own copy | Not applicable |
| Network ports, local databases, service credentials, external APIs | Not separated by a worktree | Not separated by a worktree |
The last two rows matter in practice. Two agents in separate worktrees can still start a dev server on the same port, write to the same test database, or spend the same API quota. Those need their own configuration, outside Git.
#1 Best Overall
When a worktree per agent is worth the setup
Pyle’s guidance is conditional rather than a blanket rule. The deciding question is whether an agent’s edits could land in the same files or the same working-tree state as another agent’s.
- Concurrent writers on overlapping files: use a separate worktree for each agent. This is the case worktrees are built for.
- Concurrent writers on clearly separate areas: a worktree still prevents accidental interference from stray edits, but the setup cost is lower because the risk of direct overlap is lower.
- Read-only investigation, such as code search or review: a separate worktree usually isn’t needed, since nothing is being written to the working tree.
- Work that must start from the same known state: create each worktree from an explicit branch or commit so agents don’t inherit each other’s local state.
Creating each worktree from a predictable baseline
Pyle’s article gives two command patterns. Both use standard Git syntax. The paths are relative to the repository’s parent directory in his examples, so adjust them to your layout.
Rank #2
Option A: attach a worktree to an existing branch
git worktree add ../work-feature-a feat/thing-a
git worktree add ../work-feature-b feat/thing-bUse this when each branch already exists and you want each agent to continue that branch. Git will refuse to check out a branch that is already checked out in another worktree, unless you force it. Plan one branch per worktree.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Option B: start a new branch from a named baseline
git worktree add ../ajp-og-cards -b feat/per-page-og-cards origin/mainPyle uses this form to make the starting point explicit. Naming origin/main means the new branch begins from that remote-tracking commit rather than whatever happens to be checked out in the main directory.
Step-by-step setup
- From the main checkout, update remote-tracking refs with
git fetch origin. Without this,origin/mainmay point to an older commit. - Run the
git worktree addcommand for each agent, choosing either Option A or Option B. - Confirm the result with
git worktree list, which shows each directory and its branch. - Start each agent with its working directory set to its own worktree path, not the main checkout.
- Have each agent commit its work to its own branch. Uncommitted changes stay in one worktree and do not reach the others, but they also do not reach any branch until committed.
Integrating the branches afterward
Separate worktrees reduce interference while work is in progress. They do not combine the results. Each branch still needs review, and branches that touch the same files will conflict when merged, exactly as they would with human developers working on separate branches.
- Review each branch on its own, for example with
git log main..feat/thing-aandgit diff main...feat/thing-a. - Run the project’s tests on each branch before combining, since each agent saw only its own changes.
- Merge or rebase the branches through your normal review process, one at a time, re-running tests after each integration.
- Resolve any conflicts in the normal way. Git will not resolve overlapping edits automatically, and a worktree does not change that.
Pyle’s phrase for this is “When parallel work fights over shared state, don’t build a better referee. Remove the sharing.” That is his editorial advice, not a formal Git guarantee. It describes the design choice: give each writer its own working state, then integrate deliberately.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Cleaning up finished worktrees
Worktrees accumulate. Remove each one once its branch has been merged or abandoned:
git worktree list
git worktree remove ../work-feature-a
git worktree prunegit worktree remove deletes the worktree’s directory and refuses to proceed if it has uncommitted changes, unless you pass --force. Check the output of git worktree list before removing anything, and commit or deliberately discard work first. git worktree prune clears records for worktree directories that were deleted without using remove.
Best Value
What the evidence does and does not support
The main source is a single first-person article by Pyle, published in 2026. It explains the mechanism and gives the workflow above. It does not measure how often worktrees prevent conflicts, how much productivity they add, or how many worktrees a machine or repository can handle. Pyle reports running roughly thirty worktrees at once. That is one author’s personal experience, not a benchmark, and it should not be read as a practical limit.
Other agent tools describe similar worktree-based setups, including MindFlock, Pragma, and a workflow document from OTICA that describes parallel workers using worktrees. Their documentation shows the pattern is used in more than one tool. It does not show that any of them need worktrees, and it does not prove a performance benefit.
The reliable claim is narrow. A worktree gives each agent a separate working directory and branch on top of shared Git history, which prevents agents from overwriting each other’s uncommitted files in one checkout. Everything outside Git’s working-tree model still needs its own isolation.
Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsQuick Recap
“
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
