AI Night School · Free Tool By Wally, the Night Owl

See what your AI agents really cost. Then put a cap on it.

Someone asked a Claude community of 500,000 members what they use to track token costs. The answer: “Absolutely nothing.” Other tools only report the damage after it happens. The Token Governor stops it while it happens, and it’s free.

Know your number. Cost per task, per session, per model, in real dollars.
Stop runaway agents. Daily and per-session caps, plus a kill switch for agents stuck in a loop.
Get warned early. A heads-up before your plan runs out in the middle of a job.

token-governor-skill-v1.2.1.zip · 41 KB · Python 3 only · No account, no email

$67.50 → $16.65 Cost per 1,000 requests when you staff models by job instead of using one premium model for everything. That is 75.3% saved on the reference workload.

5.04 billion tokens Input tokens one AI operation burned in 18 days, at a 176:1 input-to-output ratio, before this tool measured it.

What’s in the download

01The Ledger: know the cost of every task

Reads your local agent logs and prices every session and model in dollars. Flags the three patterns that drain plans: context drag, marathon sessions, and long-tail bloat.

02The Governor: stop the bleed before it happens

Set a daily cap and a per-session cap. An agent that repeats the same mistake three times stops and saves a checkpoint instead of billing you. A preflight check can block a heavy job before it starts.

03Routing: put cheap models on cheap work

A fast, cheap model routes. Mid-tier models do the work. Your premium model handles judgment only. The routing tool prices both setups per 1,000 requests and flags premium sessions doing basic work.

New in v1.2.1

Reset rules and countdowns: see when your session and weekly limits reset, and whether a big job should run now, split, or wait.
Watching time: the Ledger now prices the hours you spend supervising agents, not just the tokens.
Storage meter: find which projects and caches are eating your drive, and how fast they grow.

Install in 3 steps

Unzip the download. You get a folder named token-governor.
Move that folder into your agent’s skills directory. For Claude Code: ~/.claude/skills/.
Ask your agent: “Run my token ledger.” You get your costs in dollars, per task, session, and model. Then ask: “Run a governor check.”

Your data stays on your machine

Runs 100% on your computer. Nothing uploads and nothing phones home.
No account, no email, no sign-up. Download it and it’s yours.
It reads local log files and writes reports to your disk only.

token-governor-skill-v1.2.1.zip · 41 KB · Python 3 only · No account, no email