Token accounting split into its own tool category below the agent.

Three separately-maintained projects now occupy the same layer. CodeBurn reads on-disk session files to price 41+ tools locally and flags waste like re-read files and unused MCP servers. caveman (98.9k stars) interposes a local proxy doing content-type-aware compression, JSON structural compression, INFO log filtering, tree-sitter code compression eliding function bodies, and a pixel mode rendering dense text to PNG for vision models, reporting 33.2% fewer provider-billed input tokens across 54 Claude Code runs, with original bytes written to a content-addressed recovery store before any lossy transform. OmniRoute routes across 341 providers with quota-aware scheduling. None is a coding agent. All three assume you already have several, and the common architecture is a local interposer, not a vendor dashboard, because no single vendor sees the whole spend.