Big Arrow

Before you start: read this whole install prompt, tell me in a few lines what this skill does and what installing it involves, and wait for my go-ahead before you do anything else. Prerequisites: macOS only, plus the bigarrow command line tool 0.4.6 or newer, installed separately: brew install franzenzenhofer/tap/bigarrow (or build it from source with swift build -c release, Xcode 16 or newer, macOS 14 or newer). If an older bigarrow is installed, run brew upgrade franzenzenhofer/tap/bigarrow first, because an old binary prints copy values as plain text. No account, no API key and no paid service. Permissions: drawing the arrow needs no macOS permission, but targeting by element or by window title uses the Accessibility permission, and on newer macOS also Screen Recording for window titles, granted to the app that runs your shell (Terminal, Ghostty or VS Code), never to bigarrow itself; bigarrow doctor names that app and the right Settings pane. The skill declares allowed tools Bash(bigarrow:*) only. Install "Big Arrow" for me. It teaches you to point at something on my macOS screen with a big click-through arrow and a written sign, using the bigarrow CLI, whenever I have to look at, click, type into or choose a specific spot, button, field, window, tab or menu. Repository: https://github.com/franzenzenhofer/big-arrow-on-the-screen (the skill is the whole skill/big-arrow/ folder at the pinned commit: SKILL.md, reference.md, agents/openai.yaml) Pinned version: install the code at commit 8917602eb86eb4cc66953480fa8d62f8612e420b exactly. Do not substitute a newer version. If this commit is unreachable, stop and tell me. 1. Clone https://github.com/franzenzenhofer/big-arrow-on-the-screen into a temporary folder, check out commit 8917602eb86eb4cc66953480fa8d62f8612e420b, and copy the skill/big-arrow/ folder from that checkout. Then compare every file in the folder with the fingerprints recorded for this listing on 2026-10-18: [FINGERPRINTS] - SKILL.md: SHA-256 3d84b282d8b024460b24cbd6e4840d1532c7913aae19eab8625d02143141397f - agents/openai.yaml: SHA-256 0936887463966654cabe7ae93c9e4a552506525f5ff36fcf89424f61c882a424 - reference.md: SHA-256 c460f0e6ddd6ae77171f225e6e1ca0542bc8c9008e5c23ee7b5d23166e1df331 If a file does not match, it changed since the listing was prepared: do not install it yet, tell me what you found and let me decide. 2. Read SKILL.md in full (and every other file in the folder) and tell me in plain words: what the skill does when used, which services it connects to, whether it reads or sends any personal information or keys, and anything that seems unusual. Stop on any red flag and tell me before going further. Confirm these points from the files: - The skill folder holds three files only: SKILL.md, reference.md (pane ids, coordinate and timing detail) and agents/openai.yaml (an optional file for Codex; Claude Code ignores the agents/ folder). There is no code, no script and no dependency list in the folder: the skill is instructions that call the separate bigarrow binary. - Nothing is sent anywhere during installation itself; the only download at install time is the skill folder from GitHub at the pinned commit. The folder describes no network call, no account and no telemetry. At use time the agent runs the local bigarrow binary and the macOS open command for System Settings panes; bigarrow reads the local accessibility tree to find the element you name, can speak the sign locally with --say, and can render an offscreen PNG with --png. It never clicks, types or captures for you: the human clicks. - The sign is one full sentence naming the action, and when the click approves, grants, pays, signs, sends or deletes, the sign also states what happens. A value to paste goes on the sign as a copy button. Arrows end on their own: after 300 s in start mode, when the session exits, or on bigarrow stop. - One time setup described in SKILL.md is optional: a UserPromptSubmit hook running "bigarrow stop --hook" in ~/.claude/settings.json, so arrows clear when the human answers. Do not edit my settings.json during this install; tell me about the hook in your report and let me decide. 3. When I say "yes, install", install it as a skill: copy the whole folder into the agent's skills directory, in a folder named "big-arrow", keeping every file (SKILL.md, reference.md, agents/openai.yaml). The upstream route, bigarrow install-skill after the Homebrew install, copies the same folder to ~/.claude/skills/big-arrow and ~/.agents/skills/big-arrow; either route is fine as long as the files match the fingerprints. 4. Verify with no network calls: frontmatter valid, files in place. Do not run bigarrow itself during verification, because it draws on my screen. 5. Report what was installed, where, and what I still need to do myself (for example: install or upgrade the bigarrow binary with Homebrew myself if it is missing or older than 0.4.6, grant Accessibility or Screen Recording to my terminal app myself in System Settings if bigarrow doctor asks for it, and add the optional stop hook to ~/.claude/settings.json myself if I want it; using the skill is a separate step that only starts when I ask for it). GitHub is optional: if I have a GitHub account or the gh CLI, you may use it; otherwise public access is fine. Never require it unless it's in the prerequisites above. Rules: don't touch anything outside the temp folder and the install target. If anything looks off, stop and ask me.