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Harnessmeter

Development community

Description

A profiler for your agentic harness. Price every line of CLAUDE.md, every skill, subagent and MCP tool schema — then find the ones that don't earn their place. Zero API keys, zero network. Claude Code, Codex, Antigravity.

Installation

This entry records only its repository, not the path inside it, so there is no exact command to give. Open the source below and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

README

harnessmeter

npm ci status: early node license: MIT zero dependencies zero api keys no network


You have 4,000 lines of `CLAUDE.md`, twelve subagents, eight MCP servers, and **zero tests**. Someone edits one line and the behaviour of your whole team shifts, silently.

We have profilers for CPU, memory, SQL, and JS bundles. We have **none for context** — the scarcest resource in agentic engineering. Every token of your harness is loaded on *every turn*, of *every session*, of *every developer*. Nobody can tell you which lines pay for themselves.

`harnessmeter` prices them.

The frame

**Your context window is a commons with no rent.** Every instruction occupies space for free, forever, regardless of what it produces. Two things follow, and you've felt both:

  • CLAUDE.md only ever grows.
  • At 4,000 lines, nobody dares delete anything, because nobody can prove what's load-bearing.

So we give every block a **lease**: a measured price, a measured yield, a