feat: economics — eq / saving % pure compute (parity v1 · slice 5/11)#48
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FabioRocha231 wants to merge 6 commits into
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feat: economics — eq / saving % pure compute (parity v1 · slice 5/11)#48FabioRocha231 wants to merge 6 commits into
FabioRocha231 wants to merge 6 commits into
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Slice 0 of the bottom-up Rust rewrite (inbrace-tech#27): the crate skeleton so every later slice lands its module + test against a green build. - rust/ single binary crate 'tokenline', flat src/, edition 2024, MSRV 1.85. - deps: serde + serde_json + jiff (jiff::Timestamp for ISO-8601, lands slice 3). - panic = "unwind" in the release profile (the final slice's catch_unwind needs it). - main.rs is a stub; lib.rs is the module root. cargo build/run/test green (0 tests).
Slice 1 (inbrace-tech#27). Pure formatting helpers matching the bash fmt_k (awk %.1f token compaction) and fmt_eta (human ETA from seconds). Covered by #[cfg(test)] with the tier boundaries and the golden's 3d4h reset ETA.
Slice 2 (inbrace-tech#27). The COLOR_* / STYLE_* constants from tokenline.sh:21-30 as exact SGR sequences (RESET is [00m, BLINK [1;5m — byte-identical so the golden oracle diffs clean). Test asserts each against the bytes captured from bash output.
Slice 3 (inbrace-tech#27). Replaces the bash epoch_from_iso (date -d) with jiff::Timestamp parsing -> epoch seconds; None on malformed input. Transcripts and rate-limit resets are fixed-format UTC, so no tz database. Tests cover exact UTC epochs, sub-second truncation, and invalid input.
Slice 4 (inbrace-tech#27). Parses the host's stdin JSON into a typed Session (model, context, rate limits, per-turn token usage) with serde, plus the derivations (Gemini detection, subagent/antigravity transcript-path fixups) matching tokenline.sh. Unit-tested.
Slice 5 (inbrace-tech#27). compute(session, ttl_label) -> Option<Economics>: the per-turn equivalent-token and saving-% math byte-identical to tokenline.sh (multipliers, truncating eq/uncached_eq, integer saving_pct; write mult 2x on a 1h TTL). Pure values only — coloring is render's job. None when there's no turn activity.
This was referenced Jul 5, 2026
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Part of the parity-v1 stack for #27 — slice 5 of 11, bottom-up.
Stacks on #47 (the previous slice). This slice adds: the per-turn equivalent-token + saving-% math (values only; render colors it).
Merge order: #42 (bash resets_at fix) -> #43 (slice 0 · scaffold) -> then slices 1..11 in order -> this is slice 5.
Whole stack is green: ~31 tests (lib + golden + e2e),
clippy -D warningsclean,cargo fmtclean. Render is byte-exact vs the fixed bash oracle (tests/golden.rs).