magna-nz/tallybook

Local-first cost ledger for coding agents — prices every Claude Code and Codex session already on disk and lets the agent ask what it is spending mid-session. 8 tools, 7 read-only: spend report with findings, per-finding advice with an applyable patch, spend by sub-agent type, session list and per-session turn breakdown, model-swap verdicts, the price table, and a rescan. Reads local transcripts only — no proxy, no API key, nothing leaves the machine. Transport: `stdio`. Install: `brew install --cask magna-nz/tap/tallybook`, or `go install github.com/magna-nz/tallybook/cmd/tallybook@latest`. Glama: https://glama.ai/mcp/servers/magna-nz/tallybook. Go, MIT.

Project

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