A command that creates a separate Git worktree for a branch and starts the project's development environment. A Git worktree is another working directory connected to the same repository.

Use it to begin development on a new or existing branch, open its workspace, and later use the project's worktree logging and closing commands.

It lets you work on a branch in an isolated directory without changing your current checkout. The command also starts the environment and reports where the project is running.

How samuelclay/NewsBlur configures Claude Code

About the project

NewsBlur is a personal RSS news reader and social network that displays stories, the original sites they come from, and tools for filtering and discussing them. Readers use it to follow subscriptions, train story preferences, search and tag articles, share reading, and optionally self-host the service. The catalogue entries provide commands, skills, instructions, hooks, and settings for working with the NewsBlur project.

samuelclay/NewsBlur · 7,680 stars · on GitHub · newsblur.com

Reuse

Borrowing it

Nothing to install: this file belongs to samuelclay/NewsBlur. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/samuelclay/NewsBlur/main/.claude/commands/worktree.md

Clone the repo

git clone --depth 1 https://github.com/samuelclay/NewsBlur

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/commands/samuelclay/newsblur/worktree/github.svg)](https://agentmods.dev/commands/samuelclay/newsblur/worktree)

Your own site

<a href="https://agentmods.dev/commands/samuelclay/newsblur/worktree"><img src="https://agentmods.dev/badge/commands/samuelclay/newsblur/worktree/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/commands/samuelclay/newsblur/worktree"><img src="https://agentmods.dev/badge/commands/samuelclay/newsblur/worktree.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 264 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00009	$0.00264
Opus 5.5	$0.00004	$0.00106
Sonnet 5.5	$0.00002	$0.00053
Haiku 4.5	$0.00001	$0.00026

Measured 2mo ago against content hash 485964035d2e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

worktree scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/commands/worktree.md · 36 lines

What it actually says

Your task

Create a new git worktree for the branch specified in the arguments and start the development environment.

Arguments provided: {{ arguments }}

Steps to execute

Parse the branch name from the arguments (the first word)

Create the worktree using auto-detect logic (try new branch first, fall back to existing):

BRANCH_NAME="<parsed-branch-name>"
git worktree add ".worktree/${BRANCH_NAME}" -b "${BRANCH_NAME}" 2>/dev/null || \
git worktree add ".worktree/${BRANCH_NAME}" "${BRANCH_NAME}"

Change the working directory to the new worktree:
```
cd ".worktree/${BRANCH_NAME}"
```
Run worktree-dev.sh to start the development environment:
```
./worktree-dev.sh
```
Report success including:
- The workspace URL (from worktree-dev.sh output)
- That the working directory is now .worktree/<branch-name>
- Available commands: make worktree-log, make worktree-close

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 36 lines · 9 tokens per session scan A 485964035d2e

Subscribe to this mod's changes

worktree is a command published in the GitHub repository samuelclay/NewsBlur (7,680 stars, last pushed yesterday), licensed MIT. It adds 9 tokens to every session and 264 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Git and workflow MongoDB android ios postgresql redis rss-reader

worktree next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
worktreesamuelclay/NewsBlur	Command	7.7k	yesterday	MIT	A	9	Claude Code
copilotkelvinkosbab/AppBootstrapAI	Command	8	today	MIT	A	19	Claude Code
claudekelvinkosbab/AppBootstrapAI	Command	8	today	MIT	A	19	Claude Code
cursorkelvinkosbab/AppBootstrapAI	Command	8	today	MIT	A	0	Claude Code
figma-startnaver/design-to-ui	Command	8	2mo ago	Apache-2.0	A	49	Claude Code
handoffnaver/design-to-ui	Command	8	2mo ago	Apache-2.0	A	38	Claude Code
figma-applynaver/design-to-ui	Command	8	2mo ago	Apache-2.0	A	31	Claude Code

NewsBlur: Command for Claude Code