Speedometer

Green while there is room, yellow from 60%, red from 85%, with one toast when it redlines so you can /compact before Claude does it for you.

The band draws in the terminal and in the Code tab of the Claude desktop app. It reads only the figures Claude Code already has, and sends nothing anywhere.

Nothing goes anywhere. Here is each thing, plainly.

What it sends, and where.

• Nothing. It reads how full the context window is from Claude Code, with $.session.usage, and shows it on your screen.
• It stores nothing on disk.

Which programs it runs, and why.

• None. It runs no programs.

What it puts in the prompts it submits.

• It submits no prompts, and changes none of yours.

What each hook does.

• session.start: adds the /speed and /speedometer commands and reads the context fill.
• session.measure: takes the new fill, and shows one toast when it crosses 85%.
• command.run for speed, and for speedometer: prints the dial, or hides or shows the band.
• ui.render for AbovePrompt: draws the dial above the prompt.