Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-09 12:55 UTC

mulgadc / viperblock

Viperblock: High-performance block storage with S3 compatibility for edge to on-premise deployments. Features log-structured writes, block-to-object mapping, and configurable chunk sizes. Supports multiple backends with checksumming and intelligent caching for VM and container storage needs.

GoAGPL-3.0★ 10 stars⑂ 1 forksince May 2025View on GitHub ↗
KindLibraryApplicationhow this is determined

mulgadc/viperblock holds a health index of 75 out of 100, placing it in the Good band. It scores highest on Vitality (91/100) and lowest on Community & Adoption (35/100). It was last updated today. A single contributor accounts for most of its recent work.

75
overall / 100
Good

Software health index

Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean, calibrated against the distribution of the public record so bands carry percentile meaning; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At Risk ceiling of 34.

75
Exceptional93-100The record's top tier (≈ top 5%); essentially all checked criteria met
Excellent80-92Strong across the board; minor gaps
Good65-79Healthy; gaps are limited and manageable
Moderate50-64Acceptable with notable gaps; review recommended
Weak35-49Material weaknesses across several areas
At Risk20-34Significant weaknesses; adoption warrants caution
Critical1-19Severe problems (abandoned, single-maintainer, no hygiene)
VitalityCommunity &AdoptionSustainability &GovernanceEngineeringQualitySecurityAI Readiness

Score profile

Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.

The weighted overall 65 is calibrated to 75 on the published index scale (record calibration 2026-08-02).

Ownership

MulgaOrganization
12 followers10 public repossince Jan 2025

This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publish
Gogithub.com/mulgadc/viperblockv1.19.0-531 day ago

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

91Excellent · 21% of overall
How it's scored
36/36Push recency — last push 0 days ago
27.7/36Commit cadence — 40/52 weeks with commits
18/18Commit volume — 325 commits in the last year
10/10OpenSSF Scorecard: Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year325
human_commit_share0.9
days_since_last_push0
active_weeks_last_year40
How it's scored
27/27Ships releases — 9 releases published
27/36Release recency — latest release 120 days ago
27/27Release cadence — a release every ~27.3 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count9
latest_release_tagv1.3.0
releases_from_tagsno
days_since_latest_release120
mean_days_between_releases27.3
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

35Weak · 17% of overall
How it's scored
15.5/60Stars — 10 stars
0/25Forks — 1 forks
0/15Watchers — 1 watchers
Inputs used
forks1
stars10
watchers1
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (AGPL-3.0)
0/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
6.3/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges3
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_servicesshields.io
has_pull_request_templateyes

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

59Moderate · 23% of overall
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
11/22.5Commit distribution — top contributor authored 51% of commits
6.8/13.5Contributor breadth — 5 contributors
10/10OpenSSF Scorecard: Contributors — project has 3 contributing companies or organizations -- score normalized to 10
Inputs used
bus_factor1
contributors_sampled5
top_contributor_share0.511
How it's scored
0/42Issue resolution — no issues or no data
28.1/30PR acceptance — 88/94 decided PRs merged
0/13Newcomer PR acceptance — no first-time contributor's PR decided in 30d
0/15OpenSSF Scorecard: Code-Review — Found 1/23 approved changesets -- score normalized to 0
Inputs used
merged_prs88
open_issues0
closed_issues0
prs_merged_7d5
prs_decided_7d5
prs_merged_30d12
prs_decided_30d12
issue_closed_ratio—
closed_unmerged_prs6
first_time_authors_30d0
first_time_prs_merged_30d0
first_time_prs_decided_30d0
Excluded from scoring (no data or not applicable): Issue resolution, Newcomer PR acceptance. Remaining weights renormalized.
How it's scored
30/30Ownership backing — organization-owned
0/20Verified domain
8/25Owner reach — 12 followers of mulgadc
10.8/25Track record — 10 public repos, account ~1 yr old
Inputs used
followers12
owner_typeOrganization
is_verifiedno
owner_loginmulgadc
public_repos10
account_age_days590

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 1 package(s) on go
35/35Publish recency — latest publish 1 days ago
20/20Version history — 53 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagesgithub.com/mulgadc/viperblock
ecosystemsgo
any_deprecatedno
min_days_since_publish1

Engineering Quality

Are baseline engineering and documentation practices in place?

68Good · 19% of overall
How it's scored
24/24CI workflows — 1 workflow(s)
24/24Tests present
16/16Linter config — .golangci.yml
0/9.6Pre-commit hooks
0/6.4.editorconfig
0/20OpenSSF Scorecard: CI-Tests — 0 out of 11 merged PRs checked by a CI test -- score normalized to 0
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configno
How it's scored
30/30README
0/25Documentation directory
15/15Documentation / homepage site — https://mulgadc.com/spinifex
10/10Repository description
10/10Topics — 16 topics
10/10Wiki
Inputs used
topicsebs, nbd, block-storage, go, kvm, nbdkit, nvme, qemu, s3-compatible, snapshots, spinifex, storage-engine, virtual-disk, virtualization, write-ahead-log, ebs-compatible
has_wikiyes
homepagehttps://mulgadc.com/spinifex
docs_sitehttps://mulgadc.com/spinifex
has_readmeyes
has_docs_dirno
has_descriptionyes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

66Good · 16% of overall
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — branch protection not enabled on development/release branches
0/2.5CI-Tests — 0 out of 11 merged PRs checked by a CI test -- score normalized to 0
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
0/7.5Code-Review — Found 1/23 approved changesets -- score normalized to 0
2.5/2.5Contributors — project has 3 contributing companies or organizations -- score normalized to 10
10/10Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
7.5/7.5Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
0/5Packaging — no data
0/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
5/5Security-Policy — security policy file detected
0/7.5Signed-Releases — no data
7.5/7.5Token-Permissions — GitHub workflow tokens follow principle of least privilege
3/7.5Vulnerabilities — 6 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated16
scorecard_versionv5.5.0
checks_inconclusive2
scorecard_aggregate5.7
Excluded from scoring (no data or not applicable): Packaging, Signed-Releases. Remaining weights renormalized.

Dependency advisories

100Exceptional
How it's scored
35/35Direct dependencies free of known advisories — no direct dependency carries a known advisory
0/25Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope
0/40No advisories left outstanding — no advisory carries a publication date
Inputs used
sourceosv
advisories6
affected_packages3
assessed_packages99
unassessed_packages0
affected_by_severityhigh 1, unknown 2
direct_affected_packages0
Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 99 resolved dependencies against OSV. This repository publishes no package the index resolves, so the repository dependency graph was assessed instead. That graph mixes development and test pins with shipped dependencies, so only the declared runtime dependencies are scored; transitive findings are reported as context and excluded from the score. Reachability is not analyzed.

AI Readiness

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

75Good · 4% of overall
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
15/15Machine-readable docs (llms.txt) — llms.txt served by the project website (https://mulgadc.com/llms.txt)
40/40Legible commit history — 80 of 90 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtyes
llms_txt_urlhttps://mulgadc.com/llms.txt
legible_history_share0.889
agent_instruction_files—
agent_instruction_max_bytes—
How it's scored
18/18One-command bootstrap — Makefile
22/22Automated tests
11/11Lint / format config — .golangci.yml
11/11Static type checking — Go (statically typed)
10/10Reproducible environment — lockfile
0/10Demonstrated agent practice — no agent-authored commits among the last 100
8/8Automated maintenance — 10 of the last 100 commits are automated dependency updates
0/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsyes
lockfilesgo.sum
has_dockerfileno
typed_languageyes
bootstrap_filesMakefile
has_devcontainerno
has_linter_configyes
typecheck_configs—
agent_commit_share0
toolchain_manifestsgo.mod, nbd/go.mod, nbd/libguestfs.org/nbdkit/go.mod
dependency_bot_commit_share0.1
How it's scored
45/45Type-checkable code — Go (statically typed)
54/55Manageable file sizes — 2/109 source files over 60KB
Inputs used
primary_languageGo
largest_source_bytes258,018
source_files_sampled109
oversized_source_files2

Key facts

10GitHub stars
5contributors
325commits, last 12 months
0days since last push
9releases
1bus factor
0open issues
Gopackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token

More detail

OpenSSF Scorecard 5.7 / 10
5.7aggregate

Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).Scorecard v5.5.0 · 2026-09-09 12:54 UTC

10Binary-Artifactsno binaries found in the repo
0Branch-Protectionbranch protection not enabled on development/release branches
0CI-Tests0 out of 11 merged PRs checked by a CI test -- score normalized to 0
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
0Code-ReviewFound 1/23 approved changesets -- score normalized to 0
10Contributorsproject has 3 contributing companies or organizations -- score normalized to 10
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
n/aPackagingpackaging workflow not detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTSAST tool is not run on all commits -- score normalized to 0
10Security-Policysecurity policy file detected
n/aSigned-Releasesno releases found
10Token-PermissionsGitHub workflow tokens follow principle of least privilege
4Vulnerabilities6 existing vulnerabilities detected
Direct dependencies 20
RegistryPackageVersion constraintManifest
Gogithub.com/aws/aws-sdk-go-v2v1.45.1go.mod
Gogithub.com/aws/aws-sdk-go-v2/credentialsv1.20.2go.mod
Gogithub.com/aws/aws-sdk-go-v2/service/s3v1.110.0go.mod
Gogithub.com/aws/smithy-gov1.28.1go.mod
Gogithub.com/hashicorp/golang-lru/v2v2.0.7go.mod
Gogithub.com/mulgadc/bluebottlev1.19.0go.mod
Gogithub.com/mulgadc/predastorev1.19.0go.mod
Gogithub.com/stretchr/testifyv1.12.1go.mod
Gogithub.com/tidwall/btreev1.8.1go.mod
Gogo.opentelemetry.io/contrib/instrumentation/net/http/otelhttpv0.71.0go.mod
Gogo.opentelemetry.io/otelv1.46.0go.mod
Gogo.opentelemetry.io/otel/metricv1.46.0go.mod
Gogo.opentelemetry.io/otel/sdk/metricv1.46.0go.mod
Gogo.opentelemetry.io/otel/tracev1.46.0go.mod
Gogolang.org/x/sysv0.47.0go.mod
Golibguestfs.org/nbdkitv0.0.0-00010101000000-000000000000go.mod
Gogithub.com/mulgadc/bluebottlev1.19.0nbd/go.mod
Gogithub.com/mulgadc/viperblockv0.0.0-00010101000000-000000000000nbd/go.mod
Gogithub.com/stretchr/testifyv1.12.1nbd/go.mod
Golibguestfs.org/nbdkitv0.0.0-00010101000000-000000000000nbd/go.mod
All dependencies 99

Full resolved dependency set from the GitHub dependency graph: 16 direct and 83 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
Gogithub.com/aws/aws-sdk-go-v2v1.45.1direct
Gogithub.com/aws/aws-sdk-go-v2/credentialsv1.20.2direct
Gogithub.com/aws/aws-sdk-go-v2/service/s3v1.110.0direct
Gogithub.com/aws/smithy-gov1.28.1direct
Gogithub.com/hashicorp/golang-lru/v2v2.0.7direct
Gogithub.com/mulgadc/bluebottlev1.18.1-0.20260827045410-e7d5cf022748direct
Gogithub.com/mulgadc/bluebottlev1.19.0direct
Gogithub.com/mulgadc/predastorev1.18.1-0.20260827052505-8a7f36b10271direct
Gogithub.com/stretchr/testifyv1.12.1direct
Gogithub.com/tidwall/btreev1.8.1direct
Gogo.opentelemetry.io/contrib/instrumentation/net/http/otelhttpv0.71.0direct
Gogo.opentelemetry.io/otelv1.46.0direct
Gogo.opentelemetry.io/otel/metricv1.46.0direct
Gogo.opentelemetry.io/otel/sdk/metricv1.46.0direct
Gogo.opentelemetry.io/otel/tracev1.46.0direct
Gogolang.org/x/sysv0.47.0direct
Gogithub.com/armon/go-metricsv0.4.1indirect
Gogithub.com/aws/aws-sdk-go-v2/aws/protocol/eventstreamv1.7.20indirect
Gogithub.com/aws/aws-sdk-go-v2/internal/configsourcesv1.5.1indirect
Gogithub.com/aws/aws-sdk-go-v2/internal/endpoints/v2v2.8.1indirect
Gogithub.com/aws/aws-sdk-go-v2/internal/v4av1.5.1indirect
Gogithub.com/aws/aws-sdk-go-v2/service/internal/accept-encodingv1.13.19indirect
Gogithub.com/aws/aws-sdk-go-v2/service/internal/checksumv1.11.1indirect
Gogithub.com/aws/aws-sdk-go-v2/service/internal/presigned-urlv1.14.1indirect
Gogithub.com/aws/aws-sdk-go-v2/service/internal/s3sharedv1.20.1indirect
Gogithub.com/boltdb/boltv1.3.1indirect
Gogithub.com/buraksezer/consistentv1.0.0indirect
Gogithub.com/cenkalti/backoff/v5v5.0.3indirect
Gogithub.com/cespare/xxhash/v2v2.3.0indirect
Gogithub.com/dgraph-io/badger/v4v4.9.6indirect
Gogithub.com/dgraph-io/ristretto/v2v2.4.0indirect
Gogithub.com/dustin/go-humanizev1.0.1indirect
Gogithub.com/fatih/colorv1.19.0indirect
Gogithub.com/felixge/httpsnoopv1.1.0indirect
Gogithub.com/go-chi/chi/v5v5.3.1indirect
Gogithub.com/go-logr/logrv1.4.4indirect
Gogithub.com/go-logr/stdrv1.2.2indirect
Gogithub.com/google/flatbuffersv25.12.19+incompatibleindirect
Gogithub.com/google/uuidv1.6.0indirect
Gogithub.com/grpc-ecosystem/grpc-gateway/v2v2.29.0indirect
Gogithub.com/grpc-ecosystem/grpc-gateway/v2v2.30.0indirect
Gogithub.com/hashicorp/go-hclogv1.6.3indirect
Gogithub.com/hashicorp/go-immutable-radixv1.3.1indirect
Gogithub.com/hashicorp/go-metricsv0.5.4indirect
Gogithub.com/hashicorp/go-msgpack/v2v2.1.5indirect
Gogithub.com/hashicorp/golang-lruv1.0.2indirect
Gogithub.com/hashicorp/raftv1.7.3indirect
Gogithub.com/hashicorp/raft-boltdb/v2v2.3.1indirect
Gogithub.com/klauspost/compressv1.19.2indirect
Gogithub.com/klauspost/cpuid/v2v2.4.0indirect
Gogithub.com/klauspost/reedsolomonv1.14.2indirect
Gogithub.com/mattn/go-colorablev0.1.14indirect
Gogithub.com/mattn/go-isattyv0.0.20indirect
Gogithub.com/minio/crc64nvmev1.1.1indirect
Gogithub.com/nats-io/nats.gov1.53.1indirect
Gogithub.com/nats-io/nkeysv0.4.16indirect
Gogithub.com/nats-io/nuidv1.0.1indirect
Gogithub.com/pelletier/go-toml/v2v2.4.3indirect
Gogithub.com/quic-go/quic-gov0.61.0indirect
Gogo.etcd.io/bboltv1.4.3indirect
Gogo.opentelemetry.io/auto/sdkv1.2.1indirect
Gogo.opentelemetry.io/contrib/bridges/otelslogv0.20.0indirect
Gogo.opentelemetry.io/contrib/bridges/otelslogv0.20.1indirect
Gogo.opentelemetry.io/contrib/instrumentation/runtimev0.70.0indirect
Gogo.opentelemetry.io/contrib/instrumentation/runtimev0.71.0indirect
Gogo.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpcv0.21.0indirect
Gogo.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpcv0.22.0indirect
Gogo.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpcv1.45.0indirect
Gogo.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpcv1.46.0indirect
Gogo.opentelemetry.io/otel/exporters/otlp/otlptracev1.45.0indirect
Gogo.opentelemetry.io/otel/exporters/otlp/otlptracev1.46.0indirect
Gogo.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpcv1.45.0indirect
Gogo.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpcv1.46.0indirect
Gogo.opentelemetry.io/otel/logv0.21.0indirect
Gogo.opentelemetry.io/otel/logv0.22.0indirect
Gogo.opentelemetry.io/otel/sdkv1.46.0indirect
Gogo.opentelemetry.io/otel/sdk/logv0.21.0indirect
Gogo.opentelemetry.io/otel/sdk/logv0.22.0indirect
Gogo.opentelemetry.io/proto/otlpv1.11.0indirect
Gogo.uber.org/nilawayv0.0.0-20260721205819-4a0f7653488aindirect
Gogo.yaml.in/yaml/v3v3.0.5indirect
Gogolang.org/x/cryptov0.55.0indirect
Gogolang.org/x/exp/typeparamsv0.0.0-20260611194520-c48552f49976indirect
Gogolang.org/x/modv0.39.0indirect
Gogolang.org/x/netv0.58.0indirect
Gogolang.org/x/syncv0.22.0indirect
Gogolang.org/x/telemetryv0.0.0-20260811182544-a038080d80e5indirect
Gogolang.org/x/textv0.41.0indirect
Gogolang.org/x/timev0.15.0indirect
Gogolang.org/x/toolsv0.49.0indirect
Gogolang.org/x/vulnv1.6.0indirect
Gogoogle.golang.org/genproto/googleapis/apiv0.0.0-20260803160001-6ac0973c030dindirect
Gogoogle.golang.org/genproto/googleapis/apiv0.0.0-20260819154853-08b0e4226688indirect
Gogoogle.golang.org/genproto/googleapis/rpcv0.0.0-20260803160001-6ac0973c030dindirect
Gogoogle.golang.org/genproto/googleapis/rpcv0.0.0-20260819154853-08b0e4226688indirect
Gogoogle.golang.org/grpcv1.83.1indirect
Gogoogle.golang.org/grpcv1.83.2indirect
Gogoogle.golang.org/protobufv1.36.12indirect
Gogoogle.golang.org/protobufv1.36.12-0.20260120151049-f2248ac996afindirect
Dependency advisories 3

This repository publishes no package the index resolves, so its own dependency graph was assessed — 99 packages, which also include development and test pins that never ship: 3 carry known advisories, of which 0 are direct.

PackageVersionRelationSeverityAdvisoriesFixed in
google.golang.org/grpcv1.83.1indirecthigh11.85.0-dev.0.20260825072537-93e31b48545e
golang.org/x/cryptov0.55.0indirectunknown30.56.0
golang.org/x/modv0.39.0indirectunknown21.27.0-rc.3

An advisory means the version recorded in the dependency graph falls inside an advisory’s affected range. Reachability is not analysed, and the graph includes development and test pins — a finding may concern tooling rather than shipped software.

Raw JSON report machine-readable

Feedback

Spotted something off in this report, or have thoughts to share? Wrong measurements, missed tooling, ideas, questions — anything is welcome. Every message is read and gets a response.

The message is kept through sign-in.

Scores are signals, not warranties. They reflect publicly visible practices on GitHub — not a code audit, and not a security guarantee.

Missing data is excluded and weights renormalized, never scored as zero. Methodology is versioned and open: metrics v2.10.0, schema v0.34.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statistics — Go.