git-worktree-runner editor.instructions.md

Instructions for adding support for editors in a tool that opens project folders. They explain when to use a shared editor registry and when to write a custom adapter file.

In plain words
What is it for?
Use them to register a standard graphical or terminal editor, add custom open commands, define missing-editor errors, and document the new option.
Why use it?
They show how to add an editor without duplicating code, while allowing special editor behavior when needed.

Instructions file for GitHub Copilot

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/coderabbitai/git-worktree-runner/editor
Clone the repo
git clone --depth 1 https://github.com/coderabbitai/git-worktree-runner

Made for: GitHub Copilot.

Per session 533 This file is loaded in full into every session.
When invoked 533 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00533 $0.00533
Opus 5 $0.00267 $0.00267
Sonnet 5 $0.00107 $0.00107
Haiku 4.5 $0.00053 $0.00053

Measured 2d ago against content hash 8c1ec1fd0662, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

git-worktree-runner editor.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 2d 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/editor.instructions.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Editor Adapter Instructions

When to Use a File vs Registry

Most editors are defined as registry entries in lib/adapters.sh — no adapter file needed. Only create an adapter file in adapters/editor/ for editors that need custom behavior beyond what the standard/terminal builders provide (see nano.sh for an example).

Adding a Standard Editor (Registry)

Add a line to _EDITOR_REGISTRY in lib/adapters.sh:

yourname|yourcmd|standard|EditorName not found. Install from https://...|flags

Format: name|cmd|type|err_msg|flags

  • type: standard (GUI app) or terminal (runs in terminal)
  • flags: comma-separated — workspace (supports .code-workspace), background (terminal bg)

Adding a Custom Editor (File Override)

Create adapters/editor/<name>.sh implementing:

#!/usr/bin/env bash
# EditorName adapter

editor_can_open() {
  command -v editor-cli >/dev/null 2>&1
}

editor_open() {
  local path="$1"
  if ! editor_can_open; then
    log_error "EditorName not found. Install from https://..."
    return 1
  fi
  editor-cli "$path"
}

File-based adapters take precedence over registry entries of the same name.

Also update:

  • README.md (setup instructions)
  • All three completion files: completions/gtr.bash, completions/_git-gtr, completions/gtr.fish
  • Help text in lib/commands/help.sh (cmd_help function)

Contract & Guidelines

  • Required functions: editor_can_open (probe via command -v), editor_open <path>.
  • Quote all paths; support spaces. Avoid changing PWD globally—no subshell needed (editor opens path).
  • Use log_error with actionable install guidance if command missing.
  • Keep adapter lean: no project scans, no blocking prompts.
  • Naming: file/registry name = tool name (zedzed flag). Avoid uppercase.
  • Update: README editor list, completions (bash/zsh/fish), help (Available editors:), optional screenshots.
  • Fallback behavior: if editor absent, fail clearly; do NOT silently defer to file browser.
  • Inspect function definition if needed: declare -f editor_open.

Read the full file on GitHub · 64 lines

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. 2d ago First seen · 64 lines · 533 tokens per session scan A 8c1ec1fd0662

Subscribe to this mod's changes

git-worktree-runner editor.instructions.md is an instructions file published in the GitHub repository coderabbitai/git-worktree-runner (1,754 stars, last pushed 5d ago), licensed Apache-2.0. It adds 533 tokens to every session, about $0.0027 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 2026-08-30.