What is context-meter?
context-meter is a Claude Code mod by promptadvisers that context window and session cost meter, drawn above the prompt. It is listed under Cost & usage and has 20 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | promptadvisers |
| Repository | promptadvisers/claude-mods-starter-kit |
| Popularity | 20 GitHub stars |
| Category | Cost & usage |
| Security | Low risk (96/100) |
| Rank | #326 of 5,272 Claude Code mods; #50 in Cost & usage |
| Last commit | 2026-10-02 |
| Hooks | 3 events |
| Sees | only the events it hooks |
| Draws on | AbovePrompt |
Is context-meter safe to install?
context-meter 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 |
| Doesn't drive Claude | Pass |
| Passes claude plugin validate | Pass |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.session.usage | |
$.state.get | |
$.state.set | |
$.ui.resolve | draws interface |
How do I install context-meter?
- 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/promptadvisers/claude-mods-starter-kit claude plugin validate ./claude-mods-starter-kit/plugins/context-meter
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add promptadvisers/claude-mods-starter-kit && claude plugin install context-meter@claude-mods-kit
Or ask Claude to set it up
Paste this into Claude Code and it installs context-meter for you:
Install the "context-meter" Claude Code mod from https://github.com/promptadvisers/claude-mods-starter-kit/tree/main/plugins/context-meter. Run claude plugin validate on it first and show me what it can access before you enable it.
More from promptadvisers/claude-mods-starter-kit
This repository has at least 9 Claude Code mods on MCPMods.
- auto-handoff: Writes a cold-start handoff to handoff/ before the context fills up or compacts, and offers to resume from it in the nex (Low risk)
- changes-receipt: A plain-English receipt after every turn: files created, changed and deleted, by tool or via shell, with failed attempts (Low risk)
- coral-skin: Coral, ink and cream reskin of Claude Code with risk-coded tool rows. Toggle with /skin. (Low risk)
- flight-recorder: See inside a turn: a live Gantt timeline of model requests, tool calls and subagents, with tokens and cost per lane. (Low risk)
- model-router: Route supported subagent work to Sonnet or Haiku while keeping the main conversation on its model. /router for controls. (Low risk)
- output-tray: A side panel of the files this session created, with Open, Reveal in Finder and Copy path. (Review before installing)
- repo-heatmap: Watch where Claude looks: a live treemap of the repo that lights up as files are read, searched and edited. (Low risk)
- session-bookmarks: Explicit bookmarks for Claude Code sessions you want to come back to. /bm saves one, /bm open lists them with a copyable (High risk)