Completes the role model on the sandbox side, and closes the third failure of
the 2026-07/08 sessions: a refresh wiped hand-granted rights and nothing
recorded them, so the sandbox silently lost capabilities nobody had written down.
- Provisioned `ai_agent_sandbox_read` (36 rights) and
`ai_agent_sandbox_sandbox_write` (44 rights) from test/scopes.ts.
Verified functionally on the live sandbox: the reader reads and gets
403 on invoice creation; the writer creates a draft and gets 403 on DELETE.
- checkpoint-provision.sh now re-creates both scoped agents after every
refresh, so their rights come from code rather than from someone's memory.
Failure to provision a scope warns instead of aborting the whole checkpoint.
- checkpoint-relink-env.sh points the write skill at the scoped writer key,
falling back to the legacy single-user key so an older checkout still works.
The write skill now operates as ai_agent_sandbox_sandbox_write (id 6).
Smoke-tested end to end after the credential swap: the promote pipeline
rehearses on the sandbox under the scoped writer, and `apply` still refuses
without a recorded human gate.
The redundant `ai_agent_prod_prod_write` login is documented as deliberate:
renaming a provisioned production credential means creating a second privileged
user and repointing the promote flow — churn for cosmetics.
Left behind in the sandbox: draft invoice id=19, a scope probe. It cannot be
deleted (no scope grants DELETE, which is the point) and the next refresh
reclaims it.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Claude-Session: https://claude.ai/code/session_01VRShc4QhLLU73FLHx9vskh
arcodangeandClaude Opus 5
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