codebase: Instructions file for GitHub Copilot

.github/instructions/using-git-worktrees.instructions.md

codebase using-git-worktrees.instructions.md is an instructions file for GitHub Copilot from JimmyPaolini/codebase. It costs 347 tokens per session, scanned A, original, MIT.

Instructions for creating or attaching Git worktrees using the repository's branch naming and validation rules. A worktree is a separate working directory linked to the same Git repository.

In plain words
What is it for?
They are for choosing branch names and paths, checking branches, and creating or attaching validated worktrees.
Why use it?
They prevent invalid branches and reduce mistakes when creating isolated workspaces for parallel changes.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file. Also seen: mentions AGENTS.md.

This is JimmyPaolini/codebase's own configuration. It tells GitHub Copilot how to work on codebase itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything codebase configures →

Reuse

Borrowing it

Nothing to install: this file belongs to JimmyPaolini/codebase. 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/JimmyPaolini/codebase/main/.github/instructions/using-git-worktrees.instructions.md
Clone the repo
git clone --depth 1 https://github.com/JimmyPaolini/codebase

Made for: GitHub Copilot.

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.

agentmods badge for codebase using-git-worktrees.instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/jimmypaolini/codebase/using-git-worktrees.svg)](https://agentmods.dev/instructions/jimmypaolini/codebase/using-git-worktrees)
Your own site
<a href="https://agentmods.dev/instructions/jimmypaolini/codebase/using-git-worktrees"><img src="https://agentmods.dev/badge/instructions/jimmypaolini/codebase/using-git-worktrees.svg" alt="Measured on agentmods" height="20"></a>
Per session 347 This file is loaded in full into every session.
When invoked 347 The same file — it is already loaded in full.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00347 $0.00347
Opus 5 $0.00173 $0.00173
Sonnet 5 $0.00069 $0.00069
Haiku 4.5 $0.00035 $0.00035

Measured 3d ago against content hash 007b1dd93ac3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

codebase using-git-worktrees.instructions.md 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 3d 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.

.github/instructions/using-git-worktrees.instructions.md · 28 lines

What it actually says

Git Worktree Workflow

Use the using-git-worktrees skill to create or verify an isolated workspace. It prefers a native worktree tool when one is available and falls back to git worktree otherwise — either way, avoid ad hoc git worktree add invocations.

Two repository rules override the skill's generic defaults:

  • Branch names are validated. Use the <type>/<scope>-<description> format defined by configuration/conventional.config.cjs. The authoritative type and scope tables live in the Conventional Naming section of AGENTS.md, which the conventional-config synchronization target keeps in sync — read them there rather than from a copy. Derive a compliant name with the checkout-branch skill when the user gives only an intent.
  • Validate before creating anything: run pnpm exec validate-branch-name -t "<branch-name>". The pre-push hook and the Validate Conventions workflow both reject a non-compliant branch.

If the branch already exists locally, attach a worktree to it instead of creating a replacement branch.

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.

  1. 3d ago First seen · 28 lines · 347 tokens per session scan A 007b1dd93ac3

Subscribe to this mod's changes

codebase using-git-worktrees.instructions.md is an instructions file published in the GitHub repository JimmyPaolini/codebase (0 stars, last pushed today), licensed MIT. It adds 347 tokens to every session, about $0.0017 per session on Opus 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 2026-09-03.

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