Claude Code mod

context-budget

Measures a Claude Code session's fixed startup context payload per item at a pinned binary version, including per-tool attribution of the built-in tool pools that /context reports only as totals, derived by A/B deny differencing. Falls back from an SDK meter to a headless /context parser, then to an error rather than a wrong number. Keeps a before/after ledger per lever. Shows a live context breakdown in a pane or above the prompt. Report-only by default; fix applies one approved project trim.

28 starsContext & usage mods Plugin marketplaceValidates on Claude Code 2.1.316 Source

Install

Inside Claude Code
/plugin marketplace add melodic-software/claude-code-plugins
/plugin install context-budget@melodic-software

Mods install like plugins. Run /reload-plugins or start a new session to load it.

What it can access

Reach
L1Reads: reads mod state, draws
Sees
every prompt
Draws in
PaneAbovePrompt
Hooks
session.startsession.endprompt.submitcommand.runsession.measureui.render

From a static scan of the mod's code by awesome-claude-code-mods. It shows what the code asks for, not a security review.

How Claude Code mods work

  • A mod is a plugin with a JavaScript or TypeScript module that runs inside Claude Code (version 2.1.287 or later). It can draw panes beside the transcript, a band above the prompt, buttons and toasts, restyle the spinner and tool rows, and watch or rewrite tool calls and prompts.
  • It installs like any plugin: add its marketplace with /plugin marketplace add owner/repo, then /plugin install name@marketplace.
  • Check what a mod can reach before installing: it runs with your permissions. Reach goes from drawing only, to reading files, to writing files or running processes, to the network. Run claude plugin validate on a clone to list its hooks and calls without running it.
  • Turn one off from the Installed tab in /plugin, or start Claude Code with --safe-mode to skip every customization for a session.
Claude Code docs

Details

Repository
melodic-software/claude-code-plugins
Folder
plugins/context-budget
Marketplace
melodic-software
Author
Melodic Software
Type
Context & usage mods
License
MIT
Last updated
1 November 2026
Listed in
awesome-claude-code-mods

FAQ

What is context-budget?

Measures a Claude Code session's fixed startup context payload per item at a pinned binary version, including per-tool attribution of the built-in tool pools that /context reports only as totals, derived by A/B deny differencing. Falls back from an SDK meter to a headless /context parser, then to an error rather than a wrong number. Keeps a before/after ledger per lever. Shows a live context breakdown in a pane or above the prompt. Report-only by default; fix applies one approved project trim. It is a mod for Claude Code, from melodic-software/claude-code-plugins on GitHub.

What can the context-budget mod access?

Its widest reach is "reads" (reads mod state, draws). It sees every prompt. It draws in Pane, AbovePrompt. Like any mod, it runs with your permissions.

How do I install context-budget?

Inside Claude Code (v2.1.287 or later), run /plugin marketplace add melodic-software/claude-code-plugins and then /plugin install context-budget@melodic-software.

Is context-budget popular?

melodic-software/claude-code-plugins has 28 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 1 November 2026.

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