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llm-cost-optimizer

95 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By borghei/Claude-Skills (GitHub) · coding · 1,086 stars · scanned at commit 25bf86b

Estimates LLM token counts and per-request cost across models, flags wasteful prompt text, and models prompt-cache break-even. Use when budgeting LLM spend, comparing models on cost, or trimming prompt tokens.

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'llm-cost-optimizer' ] || [ -L ~/.agents/skills/'llm-cost-optimizer' ]; then echo 'A skill folder named llm-cost-optimizer already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/borghei/Claude-Skills' "$d" && git -C "$d" checkout --quiet '25bf86b89c6c1e63f433a5b65e8cfcb6cf0b7ad3' -- 'engineering/llm-cost-optimizer' && mkdir -p ~/.agents/skills && cp -R "$d"/'engineering/llm-cost-optimizer' ~/.agents/skills/'llm-cost-optimizer' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'llm-cost-optimizer' ~/.claude/skills/'llm-cost-optimizer' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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