# title
ScoreIA native signed-sealed Chamber card 0.2

# description
One contextual observation. The signature attests integrity and replay commitments, not provider/model/plan/host identity claims.

# properties.metrics.properties.schema_errors.description
Engine/oracle schema failures plus schema-invalid Chamber observation/action requests safely attributed by an exact open challenge handle. An exact retry with the same JSON-RPC request id, tool and arguments is counted once; the same malformed payload under a new request id counts again. Missing, malformed, unknown, closed or expired handles are not session evidence.

# properties.cost.properties.note.enum[]
The participant runtime executes the agent; ScoreIA does not meter its provider bill.

# properties.cost.properties.note.enum[]
ScoreIA controls this run; provider cost and token usage are not published on this card.

# properties.verification.properties.attests.const[]
public suite, item and toolset snapshots plus private oracle source commitment

# properties.verification.properties.does_not_attest.const[]
reproducibility while the season is open

# properties.limits.const[]
signed_sealed attests integrity, not the truth of participant identity claims

# properties.limits.const[]
the season is open: no seed reveal and no reproducibility claim