jcp-gateway, joule-ui-serve: name the plaintext figure cost_uj #128
2026-10-01
jcp-gateway, joule-ui-serve: name the plaintext figure cost_uj
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Two plaintext keys called `measured_uj` carried the call's cost, which is
the meter's estimate wherever no live counter read the span:
- jcp-gateway's `_meta` block on an allowed tools/call;
- joule-ui-serve's /action response.
Their grade already rode beside them, but the name still said
"measured". Nothing outside these crates reads either key: no spec,
vector or site defines them.
- jcp-gateway: `_meta.cost_uj`, the key its sealed receipt already uses
for the same figure, beside `energy_provenance` and, when partial,
`energy_coverage`. `Relayed::Allowed { cost_uj }` follows.
- joule-ui-serve: `cost_uj` and `energy_provenance`, and the page
scripts in joule-ui-render and the serve binary read those.
The energy record's own `measured_uj`, present only for a hardware
reading, is unchanged everywhere, signed vectors included. Tests assert
the old key is gone.
Co-Authored-By: Claude Opus 5.5 <[email protected]>