Sbh Agent Skill

SBH — storage pressure specialist

SBH exposes disk-pressure status, ballast, scanning, and recovery commands. This

skill gathers evidence and performs at most the explicit action authorized by the

caller. Its authorized actions can delete files and change host storage

configuration, so no mutation runs without explicit caller authority. The command

surface below is anchored to sbh 0.4.27; re-verify against sbh --version on

another host before relying on an exact flag.

Evidence-first recovery works because disk pressure has cheap reversible

remedies and expensive irreversible ones; a factual baseline is what tells them

apart before anything is deleted. Order remediation by irreversibility:

status and dry runs first, ballast release next, cleanup of unprotected files

after that, and emergency deletion last — never skip forward while a more

reversible step remains untried.

Named failure mode — wrong-mount relief: reclaiming gigabytes on a

filesystem that is not the constrained mount and declaring the pressure

resolved.

Anti-pattern: escalating straight to emergency --yes because pressure is

critical. Corrective: urgency raises the stakes of an irreversible mistake; it

never lowers the authorization bar or the ordering above.

Constraints

• Begin with sbh --json status, sbh check, or a dry run on the exact mount

because recovery decisions need a factual baseline.

• Never run clean --yes, emergency --yes, ballast release, tune --apply,

unprotect, or service/configuration changes without explicit authority

because those operations mutate host state.

• Preserve .git/, open-file, young-file, non-writable-parent, and

.sbh-protect vetoes because they prevent unsafe or ineffective cleanup.

• Confirm that ballast or reclaimed bytes affect the constrained mount because

free space on another filesystem does not resolve the pressure.

• Run one action once, capture before/after evidence, and stop because the

caller owns any further mutation. A negative result

is returned to the caller; this skill does not retry or escalate it.

Output

Return mount, free bytes, pressure state, dry-run candidates, authorization used,

exact command and exit code, bytes reclaimed, protection vetoes, and checked/not

checked surfaces.

Full command documentation: <https://github.com/Dicklesworthstone/storage_ballast_helper>