What is tokensave?

Tokensave is a cost-checking tool for people who build multi-agent setups using Claude Code, the AI coding assistant. Rather than telling you not to use multiple AI agents together, it helps you spot when a multi-agent setup is wasting money because of poor choices, and shows you how to fix it. The README and most documentation are in Korean, with an English mirror available. The author built tokensave after auditing their own 27 real Claude Code agent catalogs. They found that 99 percent of agents defaulted to the most expensive model tier, none of the 27 setups used prompt caching, and 20 agents handed clearly mechanical tasks, like exact text matching or converting a file format, to an AI model instead of a simple script. In one case, a task that could have run in about 30 seconds of Python code instead ran for 91 minutes on the most expensive model and produced no usable result. The overall structure of these agent teams was usually fine. The waste came from paying for expensive models on jobs that did not need them, then multiplying that cost across many linked steps. Tokensave addresses this with a classification system covering 10 categories and 31 specific waste patterns, a script that scans your existing agent files and flags problems in about 5 seconds, a small decision tool that recommends which model tier fits a task without calling any AI model itself, a lookup table matching task types to models, and guidance for structuring agent teams efficiently. It only uses Python's standard library, so no extra installs are needed beyond Python 3.10 or newer. It can be copied directly into a Claude Code skills folder so it activates automatically inside future sessions. A companion project by the same author checks the structural side of these agent setups, while tokensave focuses specifically on cost. The author notes that headline statistics come from a single person's own agent catalogs rather than a larger sample, and that the tool's cost estimates use pricing current as of May 2026, which may change over time.