What is surface-probe?
surface-probe is a Claude Code mod by barmoshe that a pane that shows what this surface does before you design for it: its width and placement, which elements it draws, right-to-left text, SVG, and whether a button can send Claude a message. It is listed under Interface and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | barmoshe |
| Repository | barmoshe/bar-mods |
| Popularity | no public popularity data yet |
| Category | Interface |
| Security | Low risk (96/100) |
| Rank | #2,709 of 5,272 Claude Code mods; #1,127 in Interface |
| License | MIT |
| Last commit | 2026-10-15 |
| Hooks | 3 events |
| Sees | only the events it hooks |
| Draws on | Pane |
Is surface-probe safe to install?
surface-probe scores 96/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 7 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| No network access | Pass |
| Starts no processes | Pass |
| Writes no files or config | Pass |
| Doesn't read environment variables | Pass |
| Only sees the events it hooks | Pass |
| Drives Claude (model calls, prompts) | Note |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.clock.now | |
$.command.register | |
$.prompt.fill | writes the prompt box |
$.prompt.submit | drives Claude |
$.state.get | |
$.state.set | |
$.ui.close | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
How do I install surface-probe?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/barmoshe/bar-mods claude plugin validate ./bar-mods/surface-probe
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add barmoshe/bar-mods && claude plugin install surface-probe@bar-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs surface-probe for you:
Install the "surface-probe" Claude Code mod from https://github.com/barmoshe/bar-mods/tree/main/surface-probe. Run claude plugin validate on it first and show me what it can access before you enable it.
More from barmoshe/bar-mods
This repository has 5 Claude Code mods on MCPMods.
- mission-control: A live pane: context ring, session cost, a colored timeline of every tool call, files edited, and a sports-commentator r (Low risk)
- modsmith: A workbench for building Claude Code mods: which mods loaded, a live tape of every event with its real payload, the four (Review before installing)
- rtl-kit: Right-to-left for Claude Code mods: one file to copy into a mod that orders Hebrew and Arabic right on every surface, al (Low risk)
- turn-meter: A band above the prompt: the tool running now during a turn, and a one-line summary of the last turn after it (Low risk)