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[CTX-0281] docs(security): add filesystem family matrix and P0-AC scope notes (RFC-0005 gate) - #442
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…pe notes (RFC-0005 gate)
This was referenced Oct 5, 2026
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Priority: P1 | Area: area:security | Labels: docs,P1,area:security | Milestone: v0.1.0 | RFC: OQ-085/OQ-056 | Issue: #441 | Task: CTX-0281
RFC-0004 precedent (PR #433) applied to the RFC-0005 filesystem family: adds the filesystem-family admission cells to
docs/security/threat-model.md(OQ-085 matrix,filesystemdomain, L0–L4 cells — mints NO identifiers, exact spellings/caps parked to Core bridge + SDK implementation, authorizes no implementation) + P0-AC-035/030/024/013 scope notes indocs/security/p0-acceptance-criteria.md, gating RFC-0005 (PR #440, commit 0b0bab1, APPROVE PX-0933) acceptance.Family shape (from RFC-0005 draft): decided verbs read/write/list under a NEW root (never
bitty.terminal.*, v1 frozen); scoped grants with explicit path patterns reusing the 4096/32/8KiB Core bounds; typed oracle-tight denials with listing silent-skip default; Core-attached untrusted-observation labels; read-into-VM-only grant combination; no watch/tail-follow/handles.Refs #441 (no Closes — this PR gates RFC-0005 acceptance and must NOT merge until the security review + acceptance it enables).
Files:
docs/security/threat-model.md(+36),docs/security/p0-acceptance-criteria.md(+33). Purely additive: 69 insertions, 0 deletions.Gates:
just checkgreen (0 issues);act -n -W .github/workflows/ci.ymldry-run success.Do NOT merge (commander merges after CI + CodeRabbit + security review).