What is otto-hud?
otto-hud is a Claude Code mod by manuacl that otto, a blue octopus, forecasts your context window on one line above the prompt, in the Claude Code desktop app, and in text in the terminal: weather scaled to auto-compact with what. It is listed under Cost & usage and has 1 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | manuacl |
| Repository | manuacl/claude-mods |
| Popularity | 1 GitHub stars |
| Category | Cost & usage |
| Security | Low risk (100/100) |
| Rank | #1,961 of 5,272 Claude Code mods; #343 in Cost & usage |
| License | Apache-2.0 |
| Last commit | 2026-10-10 |
| Hooks | 8 events |
| Sees | compaction, every tool call |
| Draws on | AbovePrompt |
Is otto-hud safe to install?
otto-hud 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.after | |
$.clock.every | |
$.clock.now | |
$.command.register | |
$.config.list | |
$.session.usage | |
$.state.get | |
$.state.set | |
$.ui.invalidate | draws interface |
$.ui.resolve | draws interface |
How do I install otto-hud?
- 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/manuacl/claude-mods claude plugin validate ./claude-mods/plugins/otto-hud
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add manuacl/claude-mods && claude plugin install otto-hud@claude-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs otto-hud for you:
Install the "otto-hud" Claude Code mod from https://github.com/manuacl/claude-mods/tree/main/plugins/otto-hud. Run claude plugin validate on it first and show me what it can access before you enable it.