What is context-bar?
context-bar is a Claude Code mod by davidlambl that your context window as a meter above the prompt: the conversation, the overhead every request carries, and the room left before compaction, with a drill-down into the overhead. Toggle it. It is listed under Context & memory and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | davidlambl |
| Repository | davidlambl/claude-extensions |
| Popularity | no public popularity data yet |
| Category | Context & memory |
| Security | Low risk (100/100) |
| Rank | #3,004 of 5,272 Claude Code mods; #278 in Context & memory |
| License | MIT |
| Last commit | 2026-10-14 |
| Hooks | 8 events |
| Sees | compaction |
| Draws on | AbovePrompt, Pane |
Is context-bar safe to install?
context-bar 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 | |
$.command.register | |
$.session.surfaces | |
$.session.usage | |
$.state.get | |
$.state.set | |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.close | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
How do I install context-bar?
- 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/davidlambl/claude-extensions claude plugin validate ./claude-extensions/mods/context-bar
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add davidlambl/claude-extensions && claude plugin install context-bar@davidlambl
Or ask Claude to set it up
Paste this into Claude Code and it installs context-bar for you:
Install the "context-bar" Claude Code mod from https://github.com/davidlambl/claude-extensions/tree/main/mods/context-bar. Run claude plugin validate on it first and show me what it can access before you enable it.