What every tool call costs you in context, measured from your own transcripts.
Every agent stack claims its search/graph/memory tool is cheaper than grepping and re-reading files. Nobody measures it. The claim lives in a README or a code comment, measured once during development and gated by nothing — so a tool can regress into costing MORE than what it replaced and every signal stays green, because a tool that returns less looks identical to a tool that saves you something.
pip install awtoll
Point it at your agent transcripts and see what your ten most-used commands cost.
Pairing is composition, never dependency — awtoll installs and runs on its own.
Every brick below is live, drawn from that repository's own published manifest.