What is flight-recorder?
flight-recorder is a Claude Code mod by jerrywang33 that observe tool timing and outcomes without retaining arguments or output. It is listed under Interface and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | jerrywang33 |
| Repository | jerrywang33/openmod |
| Popularity | no public popularity data yet |
| Category | Interface |
| Security | Low risk (100/100) |
| Rank | #3,539 of 5,272 Claude Code mods; #1,474 in Interface |
| License | MIT |
| Last commit | 2026-10-02 |
| Hooks | 4 events |
| Sees | every tool call |
| Draws on | AbovePrompt |
Is flight-recorder safe to install?
flight-recorder scores 100/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 8 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 |
| Doesn't drive Claude | Pass |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.clock.now | |
$.command.register | |
$.ui.invalidate | draws interface |
$.ui.resolve | draws interface |
How do I install flight-recorder?
- 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/jerrywang33/openmod claude plugin validate ./openmod/dist/plugins/flight-recorder
- Install it. Run this in your terminal, then /reload-plugins in an open session.
git clone https://github.com/jerrywang33/openmod && claude --plugin-dir ./openmod/dist/plugins/flight-recorder
Or ask Claude to set it up
Paste this into Claude Code and it installs flight-recorder for you:
Install the "flight-recorder" Claude Code mod from https://github.com/jerrywang33/openmod/tree/main/dist/plugins/flight-recorder. Run claude plugin validate on it first and show me what it can access before you enable it.
More from jerrywang33/openmod
This repository has 3 Claude Code mods on MCPMods.
- latency-lens: Spot tool calls above an elapsed-time threshold. (Low risk)
- tool-counter: Count tool calls alongside the Claude Code spinner. (Low risk)