Token Goat — Documentation skill for Claude Code

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title: "AI Token Optimizer — Cuts Costs, Sharpens Focus, Blocks Prompt Injection" description: "Cuts AI tool costs 40–80% and guards against prompt injection. Stops re-reads, extracts one function vs. whole file, shrinks screenshots 97%." image: /token-goat/assets/goat-social.png permalink: /

Token-Goat


***Give the model what it needs, not everything you have.***

**85%** smaller reads · **97.4%** image compression · **180+** filter & interception rules · **94–99%** skill overhead cut · compaction memory · **prompt injection** guard · **3.7 GB** never reached the model · **1.1 Gt** tokens saved

**Reduces AI token use/costs by 40–90%, and improves its focus. Fully automated, always online.**

**Also defends against prompt injection. Every fetched page is scanned for attack patterns and wrapped in an untrusted-content fence before hitting the model. One config line to disable.**

**Your AI re-reads the same file three times. Every compaction causes amnesia. Every build log buries the one line that matters. You pay for all of it. Token-Goat fixes all of it — automatically.**

Token-Goat sits silently between your AI and your tools. Re-read a file? It gets a one-line hint and a narrow-slice suggestion instead of the full file again. Grab a screenshot? A 100 KB copy reaches the model instead of 10 MB. Run `pytest`, `npm install`, `docker build`, or `cargo`? The thousands of progress bars and passing-test names are stripped to the failures before the output even reaches the context window. Open a PDF, a large Markdown doc, or a CSV? The hook intercepts it — heading tree, page count, or column preview — so the model never pays for the full file. Run `gh run watch` or `next dev` a second time? Prior output is recalled rather than re-run. Compact a long session? It gets a clean structured manifest of edited files and key symbols so nothing important is forgotten. Sessions drop 40–90%+ in cost. You change nothing about how you work