[tom-sapletta-com]

DiskAnalyzer divided used bytes by the full filesystem capacity, including reserved blocks unavailable to ordinary processes. On this host it reported warning severity at 94% utilization while services had only about 2.5% available capacity. Four controlled cases reproduced incorrect warning or healthy results.

Classify utilization using used bytes plus available bytes. Preserve raw capacity fields and existing severity thresholds; exhausted available capacity is critical and a zero-capacity observation remains an error. Filesystem reservations and cleanup policy remain unchanged.

Validation: 15 affected tests passed, including eight capacity cases; Testless coverage collection, changed-file Ruff and managed governance passed. The complete suite runs on the independently merged proposal-fixture correction from #147; required Python matrix and protected checks remain enforced.

Ticket: ticket-114

The independent protected Validator owns exact-head approval and merge.

[ifuri-validator-agent]

Validator approval after policy checks for exact head 03241ff9cf3d01f56d9e8dffee920db680a61334.

Ticket: ticket-114
Correlation ID: fixos114-03241ff-20261031
Model: zai/glm-5.3
Reviewed diff chunks: 1
Advisory LLM verdict: APPROVE
Advisory summary: Reviewed all 1 diff chunk(s). The change correctly recomputes disk utilization using used + free (capacity available to ordinary processes) instead of total capacity, preventing reserved blocks from masking critical pressure. Raw total/used/free fields and thresholds are preserved, zero capacity raises an explicit error, and the new tests cover reserved-block pressure, exhaustion, ordinary, empty, and zero-capacity cases. Required checks (test-summary, Python 3.10/3.11/3.12, onedev/local-verify) all pass.
Advisory findings: none
The LLM output above is advisory and was not used as the approval trust root.
Semantic review prerequisite: not_required; policy 676cb4516bbfed2a000e40b9b1b6e4a430ecc761ec546aeb53d721a1905cfdd7.

Actual PR impact radar

Exact range: 1a03305fb891c0e643a57018676af1364c821ce9...03241ff9cf3d01f56d9e8dffee920db680a61334
Change digest: 635431ea13c78c5855a36b05a9a618baefa2380794df2aa0aa214607bdc3f722
Score: 44/100 (M), estimated 45 min, split recommended: true
Affected services/components: repository-wide/unclassified

Machine-readable radar JSONL and SVG

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Merge will be attempted after this approval when explicitly authorized. ## Decision record (recomputable)

DECISION D-114-4513
TICKET ticket-114
HEAD_SHA 03241ff9cf3d01f56d9e8dffee920db680a61334
CORRELATION_ID fixos114-03241ff-20261031
ACTOR agent:ifuri-validator-agent[bot]
APPLIED_RULE P-CORE-015
INPUT author_login = "tom-sapletta-com"
INPUT observed_checks = ["test-summary=PASS","governance / remote lifecycle=PENDING","test (3.10)=PASS","test (3.11)=PASS","governance / enforce=PASS","test (3.12)=PASS","test-alpine=PASS","test-ubuntu=PASS","test-debian=PASS","test-arch=PASS","test-fedora=PASS","onedev/local-verify=PASS"]
INPUT required_checks = ["onedev/local-verify","test (3.10)","test (3.11)","test (3.12)","test-summary"]
INPUT required_checks_source = "protected registry (env/request)"
INPUT reviewer_login = "ifuri-validator-agent[bot]"
INPUT semantic_review_assessment = {"schema":"subactor.validator/semantic-review-assessment/v1","subject":{"repository":"semcod/fixos","pull_request":148,"head_sha":"03241ff9cf3d01f56d9e8dffee920db680a61334","base_sha":"1a03305fb891c0e643a57018676af1364c821ce9","diff_sha256":"1f1f23fd5460da321a6c836e29c0e654863abd51ba0c01b64b34b4208233adfe"},"policy":{"policy_schema":"subactor.validator/semantic-review-policy/v1","policy_version":1,"policy_sha256":"676cb4516bbfed2a000e40b9b1b6e4a430ecc761ec546aeb53d721a1905cfdd7","required":false,"critical_paths":[],"observed_paths":["fixos/diagnostics/disk_analyzer.py","project/ticket-114/README.md","project/ticket-114/intent.json","tests/unit/test_disk_analyzer_capacity.py"]},"grounding":"full-diff-not-per-finding-proof","execution_authority":false,"status":"not_required","reason":null,"review_sha256":null,"unresolved":[]}
INPUT superseded_checks = []
INPUT ticket_radar_receipt = {"schema":"subactor.ticket-radar/v1","base_sha":"1a03305fb891c0e643a57018676af1364c821ce9","head_sha":"03241ff9cf3d01f56d9e8dffee920db680a61334","change_digest":"635431ea13c78c5855a36b05a9a618baefa2380794df2aa0aa214607bdc3f722","score":44,"complexity":"M","estimated_minutes":45,"split_recommended":true,"services":[],"authority":"ADVISORY","promotion":"FORBIDDEN"}
VERDICT APPROVE AUTHORITY DETERMINISTIC
REJECTED REQUEST_CHANGES BECAUSE NO_UNSAFE_CHANGE_REASON_FOUND
ADVISORY llm_verdict = "APPROVE" MODEL "zai/glm-5.3"
ASSERT VERDICT_AUTHORITY != "ADVISORY"