fabro/lib/components/fabro-workflow/src/operations
Bryan Helmkamp ef86ad278a
Carry usage as lithos-llm's Usage and rename billing to usage
Re-pin lithos-llm to 55add4596b861a0623d00c3a54aa5c147c8d504b and
pebble to c91810fe51aece80359b9cd8efea971af0c46925, where token usage
and cost travel together as Usage { tokens: TokenCounts, cost:
Option<Cost> }. Fabro now carries that one type everywhere it used to
carry BilledTokenCounts, BilledModelUsage, UsdMicros, or a token count
beside a cost_usd_micros.

fabro-types: billing.rs is usage.rs with ModelRef, ModelUsage { model,
usage }, sum_usage, and usage_is_empty; billing_rollup.rs is
usage_rollup.rs with ProjectionUsageStage, ProjectionUsageByModel,
ProjectionUsageRollup, and usage_rollup_from_projection. Every usage
field is named usage: StageProjection.usage and usage_by_model,
Outcome<Option<ModelUsage>>, stage.completed and stage.failed usage and
usage_by_model, prompt.completed usage, run.completed and run.failed
usage (total_usd_micros is gone), Conclusion.usage, StageSummary.usage,
Run.usage. RunSize buckets by Cost.

fabro-workflow: model_usage_from_llm prices tokens from the catalog with
a Catalog cost source, with_reported_cost keeps a provider cost, and the
pebble handler's stage_usage groups pebble's accounts by model and sums
rows with Usage::saturating_add, so a total has a cost only when every
priced part was priced. The store fold's live usage is the agent's
usage plus its descendants'.

API: the OpenAPI spec deletes BilledTokenCounts, BilledModelUsage,
CompletionUsage, CompletionCost, TokenUsage, and RunBillingSummary,
adds TokenCounts, Cost, Usage, and ModelUsage, and renames every
billing schema, property, tag, path, and operation to usage. fabro-api
reuses lithos-llm's and fabro-types' types through with_replacement,
with a round-trip test per replacement.

Old stored runs get no migration: their pebble events in the old shape
read back with zero usage, and their rebuilt projections lose agent
usage.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-14 12:31:34 -06:00
..
archive.rs Carry usage as lithos-llm's Usage and rename billing to usage 2026-09-14 12:31:34 -06:00
create.rs Remove tests and fixtures tied to retired manifest fields 2026-09-13 08:55:55 -06:00
fork.rs Carry usage as lithos-llm's Usage and rename billing to usage 2026-09-14 12:31:34 -06:00
mod.rs fabro(01KYQN78K19NY7PNSCDYP6CG9G): implement (succeeded) 2026-07-31 14:09:32 -04:00
resume.rs Simplify run-event persistence failure plumbing 2026-08-21 19:29:14 -04:00
retry.rs Carry usage as lithos-llm's Usage and rename billing to usage 2026-09-14 12:31:34 -06:00
rewind.rs refactor: organize crates into three layers 2026-07-23 17:59:34 -04:00
run_store.rs refactor: organize crates into three layers 2026-07-23 17:59:34 -04:00
source.rs Remove stale env-interpolation promises from docs 2026-08-17 17:36:53 -04:00
start.rs Carry usage as lithos-llm's Usage and rename billing to usage 2026-09-14 12:31:34 -06:00
timeline.rs Retire legacy manifest run creation 2026-09-13 08:49:50 -06:00
validate.rs Import lithos-llm types directly instead of through fabro-types 2026-09-10 10:03:08 -06:00