Public recordGood
Software health reportschema 0.17.0 · metrics 1.13.0 · 2026-07-21 05:25 UTC
uber / tango
Tango provides a way to compute the changed targets for a given base and head and conflict graph. Uber's SubmitQueue relies on it to get changed targets to speculate the requests.
uber/tango holds a health index of 72 out of 100, placing it in the Good band. It scores highest on Vitality (87/100) and lowest on Community & Adoption (48/100). It was last updated today. 2 contributors account for most of its recent work.
72
overall / 100Software health index
Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At risk ceiling of 49. AI Readiness sits outside the overall score.
72
Excellent85-100Exemplary; meets essentially all checked criteria
Good70-84Healthy; minor gaps
Moderate50-69Acceptable with notable gaps; review recommended
At risk30-49Significant weaknesses; adoption warrants caution
Critical1-29Severe problems (abandoned, single-maintainer, no hygiene)
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.
Ownership
Uber Open SourceOrganization
3,950 followers174 public repossince Dec 2010
This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.
Package ecosystems
| Registry | Package | Version | Downloads / mo | Versions | Last publish |
|---|---|---|---|---|---|
| Go | github.com/uber/tango | v0.0.34 | - | 35 | 3 days ago |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
87
Development activity
78Good
How it's scored
| 36/36 | Push recency — last push 0 days ago |
| 14.5/36 | Commit cadence — 21/52 weeks with commits |
| 18/18 | Commit volume — 166 commits in the last year |
| 10/10 | OpenSSF Scorecard: Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 |
Inputs used
| commits_last_year | 166 |
| human_commit_share | — |
| days_since_last_push | 0 |
| active_weeks_last_year | 21 |
Release discipline
100Excellent
How it's scored
| 27/27 | Ships releases — 3 releases published |
| 36/36 | Release recency — latest release 55 days ago |
| 27/27 | Release cadence — a release every ~9.9 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 3 |
| latest_release_tag | v0.0.18 |
| releases_from_tags | no |
| days_since_latest_release | 55 |
| mean_days_between_releases | 9.9 |
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?
48
Popularity & adoption
9Critical
How it's scored
| 4.9/60 | Stars — 3 stars |
| 4/25 | Forks — 4 forks |
| 0/15 | Watchers — 0 watchers |
Inputs used
| forks | 4 |
| stars | 3 |
| watchers | 0 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | below_threshold |
Community health
92Excellent
How it's scored
| 22.5/22.5 | README |
| 22.5/22.5 | License — recognized license (Apache-2.0) |
| 18/18 | CONTRIBUTING guide |
| 13.5/13.5 | Code of conduct |
| 0/7.2 | Issue template |
| 6.3/6.3 | PR template |
Inputs used
| has_readme | yes |
| has_license | yes |
| has_contributing | yes |
| has_issue_template | no |
| has_code_of_conduct | yes |
| has_pull_request_template | yes |
Sustainability & Governance
Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?
76
Maintainer resilience (bus factor)
56Moderate
How it's scored
| 25.2/54 | Bus factor — 2 contributor(s) cover half of all commits |
| 14.2/22.5 | Commit distribution — top contributor authored 37% of commits |
| 13.5/13.5 | Contributor breadth — 10 contributors |
| 3/10 | OpenSSF Scorecard: Contributors — project has 1 contributing companies or organizations -- score normalized to 3 |
Inputs used
| bus_factor | 2 |
| contributors_sampled | 10 |
| top_contributor_share | 0.367 |
How it's scored
| 29.7/46.8 | Issue resolution — 64% of issues closed |
| 31.5/38.3 | PR acceptance — 164/199 decided PRs merged |
| 15/15 | OpenSSF Scorecard: Code-Review — all changesets reviewed |
Inputs used
| merged_prs | 164 |
| open_issues | 4 |
| closed_issues | 7 |
| issue_closed_ratio | 0.636 |
| closed_unmerged_prs | 35 |
Ownership & stewardship
80Good
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain |
| 25/25 | Owner reach — 3,950 followers of uber |
| 25/25 | Track record — 174 public repos, account ~15 yr old |
Inputs used
| followers | 3,950 |
| owner_type | Organization |
| is_verified | — |
| owner_login | uber |
| public_repos | 174 |
| account_age_days | 5,684 |
Package maintenance
100Excellent
How it's scored
| 25/25 | Published & resolvable — 1 package(s) on go |
| 35/35 | Publish recency — latest publish 3 days ago |
| 20/20 | Version history — 35 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | github.com/uber/tango |
| ecosystems | go |
| any_deprecated | no |
| min_days_since_publish | 3 |
Engineering Quality
Are baseline engineering and documentation practices in place?
70
Engineering practices
66Moderate
How it's scored
| 24/24 | CI workflows — 1 workflow(s) |
| 24/24 | Tests present |
| 0/16 | Linter config |
| 0/9.6 | Pre-commit hooks |
| 0/6.4 | .editorconfig |
| 18/20 | OpenSSF Scorecard: CI-Tests — 28 out of 30 merged PRs checked by a CI test -- score normalized to 9 |
Inputs used
| has_ci | yes |
| has_tests | yes |
| has_editorconfig | no |
| has_linter_config | no |
| has_precommit_config | no |
Documentation
75Good
How it's scored
| 30/30 | README |
| 25/25 | Documentation directory |
| 0/15 | Documentation / homepage site |
| 10/10 | Repository description |
| 10/10 | Topics — 4 topics |
| 0/10 | Wiki |
Inputs used
| topics | distributed-systems, golang, target-analysis, target-graph |
| has_wiki | no |
| homepage | — |
| has_readme | yes |
| has_docs_dir | yes |
| has_description | yes |
Security
Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?
73
Security posture
66Moderate
How it's scored
| 7.5/7.5 | Binary-Artifacts — no binaries found in the repo |
| 3.8/7.5 | Branch-Protection — branch protection is not maximal on development and all release branches |
| 2.2/2.5 | CI-Tests — 28 out of 30 merged PRs checked by a CI test -- score normalized to 9 |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 7.5/7.5 | Code-Review — all changesets reviewed |
| 0.8/2.5 | Contributors — project has 1 contributing companies or organizations -- score normalized to 3 |
| 10/10 | Dangerous-Workflow — no dangerous workflow patterns detected |
| 7.5/7.5 | Dependency-Update-Tool — update tool detected |
| 0/5 | Fuzzing — project is not fuzzed |
| 2.5/2.5 | License — license file detected |
| 7.5/7.5 | Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 |
| 0/5 | Packaging — no data |
| 4/5 | Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 8 |
| 0/5 | SAST — SAST tool is not run on all commits -- score normalized to 0 |
| 0/5 | Security-Policy — security policy file not detected |
| 0/7.5 | Signed-Releases — no data |
| 7.5/7.5 | Token-Permissions — GitHub workflow tokens follow principle of least privilege |
| 0/7.5 | Vulnerabilities — 11 existing vulnerabilities detected |
Inputs used
| source | openssf_scorecard |
| checks_evaluated | 16 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 2 |
| scorecard_aggregate | 6.6 |
Excluded from scoring (no data or not applicable): packaging, signed_releases. Remaining weights renormalized.
Dependency advisories
100Excellent
How it's scored
| 35/35 | Direct dependencies free of known advisories — no direct dependency carries a known advisory |
| 0/25 | Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope |
| 0/40 | No advisories left outstanding — no advisory carries a publication date |
Inputs used
| source | osv |
| advisories | 13 |
| affected_packages | 3 |
| assessed_packages | 51 |
| unassessed_packages | 0 |
| affected_by_severity | critical 1, moderate 1, unknown 1 |
| direct_affected_packages | 0 |
Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 51 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? An independent, experimental badge — weight 0.0, so it is surfaced on its own and does not affect the overall health score.
82
Agent context & guidance
75Good
How it's scored
| 45/45 | Agent instructions — CLAUDE.md |
| 0/15 | Machine-readable docs (llms.txt) |
| 0/40 | Legible commit history — no data |
Inputs used
| has_llms_txt | no |
| legible_history_share | — |
| agent_instruction_files | CLAUDE.md |
| agent_instruction_max_bytes | 21,793 |
Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.
How it's scored
| 18/18 | One-command bootstrap — Makefile |
| 22/22 | Automated tests |
| 0/11 | Lint / format config |
| 11/11 | Static type checking — Go (statically typed) |
| 10/10 | Reproducible environment — lockfile |
| 0/10 | Demonstrated agent practice — no data |
| 5/8 | Automated maintenance — dependency automation configured, none observed in the sampled commits |
| 8/10 | OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 8 |
Inputs used
| has_nix | no |
| has_tests | yes |
| lockfiles | go.sum |
| has_dockerfile | no |
| typed_language | yes |
| bootstrap_files | Makefile |
| has_devcontainer | no |
| has_linter_config | no |
| typecheck_configs | — |
| agent_commit_share | — |
| toolchain_manifests | — |
| dependency_bot_commit_share | 0 |
Excluded from scoring (no data or not applicable): Demonstrated agent practice. Remaining weights renormalized.
Code legibility for models
100Excellent
How it's scored
| 45/45 | Type-checkable code — Go (statically typed) |
| 54.5/55 | Manageable file sizes — 1/111 source files over 60KB |
Inputs used
| primary_language | Go |
| largest_source_bytes | 188,118 |
| source_files_sampled | 111 |
| oversized_source_files | 1 |
How it's scored
| 40/40 | API schema (OpenAPI/GraphQL/proto) — proto/tango.proto |
| 0/20 | MCP server |
| 40/40 | Runnable examples — example |
Inputs used
| example_dirs | example |
| has_mcp_signal | no |
| api_schema_files | proto/tango.proto |
Key facts
3GitHub stars
10contributors
166commits, last 12 months
0days since last push
3releases
2bus factor
4open issues
Gopackage ecosystems
More detail
Star and fork history 3 ★ / 0 ⇿
3Stars
When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.
OpenSSF Scorecard 6.6 / 10
6.6aggregate
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).
| 10 | Binary-Artifacts | no binaries found in the repo |
| 5 | Branch-Protection | branch protection is not maximal on development and all release branches |
| 9 | CI-Tests | 28 out of 30 merged PRs checked by a CI test -- score normalized to 9 |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 10 | Code-Review | all changesets reviewed |
| 3 | Contributors | project has 1 contributing companies or organizations -- score normalized to 3 |
| 10 | Dangerous-Workflow | no dangerous workflow patterns detected |
| 10 | Dependency-Update-Tool | update tool detected |
| 0 | Fuzzing | project is not fuzzed |
| 10 | License | license file detected |
| 10 | Maintained | 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 |
| n/a | Packaging | packaging workflow not detected |
| 8 | Pinned-Dependencies | dependency not pinned by hash detected -- score normalized to 8 |
| 0 | SAST | SAST tool is not run on all commits -- score normalized to 0 |
| 0 | Security-Policy | security policy file not detected |
| n/a | Signed-Releases | no releases found |
| 10 | Token-Permissions | GitHub workflow tokens follow principle of least privilege |
| 0 | Vulnerabilities | 11 existing vulnerabilities detected |
Direct dependencies 15
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| Go | github.com/bazelbuild/buildtools | v0.0.0-20250930140053-2eb4fccefb52 | go.mod |
| Go | github.com/deckarep/golang-set/v2 | v2.8.0 | go.mod |
| Go | github.com/goccy/go-yaml | v1.19.1 | go.mod |
| Go | github.com/gogo/protobuf | v1.3.2 | go.mod |
| Go | github.com/golang/mock | v1.7.0-rc.1 | go.mod |
| Go | github.com/google/go-cmp | v0.6.0 | go.mod |
| Go | github.com/stretchr/testify | v1.10.0 | go.mod |
| Go | github.com/uber-go/tally | v3.5.8+incompatible | go.mod |
| Go | go.uber.org/fx | v1.24.0 | go.mod |
| Go | go.uber.org/goleak | v1.3.0 | go.mod |
| Go | go.uber.org/mock | v0.6.0 | go.mod |
| Go | go.uber.org/yarpc | v1.81.0 | go.mod |
| Go | go.uber.org/zap | v1.27.0 | go.mod |
| Go | golang.org/x/sync | v0.16.0 | go.mod |
| Go | google.golang.org/protobuf | v1.34.2 | go.mod |
All dependencies 51
Full resolved dependency set from the GitHub dependency graph: 15 direct and 36 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|---|---|---|
| Go | github.com/bazelbuild/buildtools | v0.0.0-20250930140053-2eb4fccefb52 | direct |
| Go | github.com/deckarep/golang-set/v2 | v2.8.0 | direct |
| Go | github.com/goccy/go-yaml | v1.19.1 | direct |
| Go | github.com/gogo/protobuf | v1.3.2 | direct |
| Go | github.com/golang/mock | v1.7.0-rc.1 | direct |
| Go | github.com/google/go-cmp | v0.6.0 | direct |
| Go | github.com/stretchr/testify | v1.10.0 | direct |
| Go | github.com/uber-go/tally | v3.5.8+incompatible | direct |
| Go | go.uber.org/fx | v1.24.0 | direct |
| Go | go.uber.org/goleak | v1.3.0 | direct |
| Go | go.uber.org/mock | v0.6.0 | direct |
| Go | go.uber.org/yarpc | v1.81.0 | direct |
| Go | go.uber.org/zap | v1.27.0 | direct |
| Go | golang.org/x/sync | v0.16.0 | direct |
| Go | google.golang.org/protobuf | v1.34.2 | direct |
| Go | github.com/beorn7/perks | v1.0.1 | indirect |
| Go | github.com/burntsushi/toml | v1.2.1 | indirect |
| Go | github.com/cespare/xxhash/v2 | v2.3.0 | indirect |
| Go | github.com/davecgh/go-spew | v1.1.1 | indirect |
| Go | github.com/gogo/googleapis | v1.4.1 | indirect |
| Go | github.com/gogo/status | v1.1.0 | indirect |
| Go | github.com/golang/protobuf | v1.5.4 | indirect |
| Go | github.com/matttproud/golang_protobuf_extensions | v1.0.2-0.20181231171920-c182affec369 | indirect |
| Go | github.com/opentracing/opentracing-go | v1.2.0 | indirect |
| Go | github.com/pmezard/go-difflib | v1.0.0 | indirect |
| Go | github.com/prometheus/client_golang | v1.11.1 | indirect |
| Go | github.com/prometheus/client_model | v0.2.0 | indirect |
| Go | github.com/prometheus/common | v0.26.0 | indirect |
| Go | github.com/prometheus/procfs | v0.6.0 | indirect |
| Go | github.com/twmb/murmur3 | v1.1.8 | indirect |
| Go | github.com/uber-go/mapdecode | v1.0.0 | indirect |
| Go | github.com/uber/tchannel-go | v1.34.4 | indirect |
| Go | go.uber.org/atomic | v1.11.0 | indirect |
| Go | go.uber.org/dig | v1.19.0 | indirect |
| Go | go.uber.org/multierr | v1.11.0 | indirect |
| Go | go.uber.org/net/metrics | v1.4.0 | indirect |
| Go | go.uber.org/thriftrw | v1.32.0 | indirect |
| Go | golang.org/x/exp/typeparams | v0.0.0-20221208152030-732eee02a75a | indirect |
| Go | golang.org/x/lint | v0.0.0-20210508222113-6edffad5e616 | indirect |
| Go | golang.org/x/mod | v0.27.0 | indirect |
| Go | golang.org/x/net | v0.43.0 | indirect |
| Go | golang.org/x/sys | v0.37.0 | indirect |
| Go | golang.org/x/text | v0.28.0 | indirect |
| Go | golang.org/x/tools | v0.36.0 | indirect |
| Go | golang.org/x/tools/go/expect | v0.1.1-deprecated | indirect |
| Go | google.golang.org/genproto/googleapis/rpc | v0.0.0-20240814211410-ddb44dafa142 | indirect |
| Go | google.golang.org/grpc | v1.67.3 | indirect |
| Go | gopkg.in/check.v1 | v1.0.0-20201130134442-10cb98267c6c | indirect |
| Go | gopkg.in/yaml.v2 | v2.4.0 | indirect |
| Go | gopkg.in/yaml.v3 | v3.0.1 | indirect |
| Go | honnef.co/go/tools | v0.4.3 | indirect |
Dependency advisories 3
This repository publishes no package the index resolves, so its own dependency graph was assessed — 51 packages, which also include development and test pins that never ship: 3 carry known advisories, of which 0 are direct.
| Package | Version | Relation | Severity | Advisories | Fixed in |
|---|---|---|---|---|---|
| google.golang.org/grpc | v1.67.3 | indirect | critical | 2 | 1.79.3 |
| golang.org/x/net | v0.43.0 | indirect | moderate | 10 | 1.26.3 |
| golang.org/x/sys | v0.37.0 | indirect | unknown | 1 | 0.44.0 |
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
{
"data": {
"repo": {
"topics": [
"distributed-systems",
"golang",
"target-analysis",
"target-graph"
],
"is_fork": false,
"size_kb": 1759,
"has_wiki": false,
"homepage": null,
"languages": {
"Go": 506644,
"Shell": 145,
"Python": 18836,
"Makefile": 5404,
"Starlark": 25048
},
"pushed_at": "2026-07-21T04:40:46Z",
"created_at": "2025-12-18T10:45:21Z",
"owner_type": "Organization",
"updated_at": "2026-07-20T18:05:11Z",
"description": "Tango provides a way to compute the changed targets for a given base and head and conflict graph. Uber's SubmitQueue relies on it to get changed targets to speculate the requests.",
"is_archived": false,
"is_disabled": false,
"license_spdx": "Apache-2.0",
"default_branch": "main",
"license_spdx_raw": "Apache-2.0",
"primary_language": "Go",
"significant_languages": [
"Go"
]
},
"owner": {
"blog": "http://www.uber.com",
"name": "Uber Open Source",
"type": "Organization",
"login": "uber",
"company": null,
"location": "70+ countries and counting.",
"followers": 3950,
"avatar_url": "https://avatars.githubusercontent.com/u/538264?v=4",
"created_at": "2010-12-27T20:25:41Z",
"is_verified": null,
"public_repos": 174,
"account_age_days": 5684
},
"license": {
"state": "standard",
"spdx_id": "Apache-2.0",
"raw_spdx": "Apache-2.0",
"file_present": true,
"scorecard_found": true,
"profile_has_license": true
},
"activity": {
"releases_count": 3,
"commits_last_year": 166,
"latest_release_at": "2026-05-27T01:16:03Z",
"latest_release_tag": "v0.0.18",
"releases_from_tags": false,
"days_since_last_push": 0,
"active_weeks_last_year": 21,
"days_since_latest_release": 55,
"mean_days_between_releases": 9.9
},
"community": {
"has_readme": true,
"has_license": true,
"has_description": true,
"has_contributing": true,
"health_percentage": 75,
"has_issue_template": false,
"has_code_of_conduct": true,
"has_pull_request_template": true
},
"ecosystem": {
"packages": [
{
"name": "github.com/uber/tango",
"exists": true,
"license": null,
"keywords": [],
"ecosystem": "go",
"matches_repo": true,
"registry_url": "https://pkg.go.dev/github.com/uber/tango",
"is_deprecated": false,
"latest_version": "v0.0.34",
"repository_url": "https://github.com/uber/tango",
"versions_count": 35,
"total_downloads": null,
"dependents_count": null,
"deprecation_note": null,
"maintainers_count": null,
"monthly_downloads": null,
"first_published_at": null,
"latest_published_at": "2026-07-17T07:06:29Z",
"latest_version_yanked": null,
"days_since_latest_publish": 3
}
]
},
"popularity": {
"forks": 4,
"stars": 3,
"watchers": 0,
"star_history": {
"days": [
{
"date": "2026-01-27",
"count": 1
},
{
"date": "2026-06-15",
"count": 1
},
{
"date": "2026-06-16",
"count": 1
}
],
"complete": true,
"collected": 3,
"total_stars": 3
},
"open_issues_and_prs": 18
},
"ai_readiness": {
"has_nix": false,
"example_dirs": [
"example"
],
"has_llms_txt": false,
"has_dockerfile": false,
"has_mcp_signal": false,
"bootstrap_files": [
"Makefile"
],
"api_schema_files": [
"proto/tango.proto"
],
"has_devcontainer": false,
"typecheck_configs": [],
"largest_source_bytes": 188118,
"source_files_sampled": 111,
"oversized_source_files": 1,
"agent_instruction_files": [
"CLAUDE.md"
],
"agent_instruction_max_bytes": 21793
},
"dependencies": {
"manifests": [
"go.mod"
],
"advisories": {
"error": null,
"scope": "repository_graph",
"source": "osv",
"findings": [
{
"name": "google.golang.org/grpc",
"direct": false,
"version": "v1.67.3",
"severity": "critical",
"ecosystem": "go",
"cvss_score": 9.1,
"advisory_ids": [
"GHSA-p77j-4mvh-x3m3",
"GO-2026-4762"
],
"fixed_version": "1.79.3",
"advisory_count": 2,
"oldest_advisory_days": 124
},
{
"name": "golang.org/x/net",
"direct": false,
"version": "v0.43.0",
"severity": "moderate",
"ecosystem": "go",
"cvss_score": 6.5,
"advisory_ids": [
"GHSA-5cv4-jp36-h3mw",
"GO-2026-4440",
"GO-2026-4441",
"GO-2026-4918",
"GO-2026-5025",
"GO-2026-5026",
"GO-2026-5027",
"GO-2026-5028",
"GO-2026-5029",
"GO-2026-5030"
],
"fixed_version": "1.26.3",
"advisory_count": 10,
"oldest_advisory_days": 165
},
{
"name": "golang.org/x/sys",
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"inputs": {
"cap": null,
"state": "unverified",
"guards": [],
"signals": [],
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},
"components": [
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}
],
"max_points": 100
}
]
}
],
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},
{
"key": "community",
"band": "at_risk",
"name": "Community & Adoption",
"value": 48,
"weight": 0.18,
"metrics": [
{
"key": "popularity",
"band": "critical",
"name": "Popularity & adoption",
"note": null,
"notes": [],
"value": 9,
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"stars": 3,
"watchers": 0,
"growth_state": "unverified",
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"code": "stars",
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"count": 3
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}
],
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{
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}
],
"max_points": 25
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{
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]
},
{
"key": "community_health",
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"notes": [],
"value": 92,
"inputs": {
"has_readme": true,
"has_license": true,
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},
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{
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"code": "license_standard",
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{
"code": "license_spdx",
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{
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{
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{
"key": "issue_template",
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{
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}
],
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},
{
"key": "governance",
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"weight": 0.24,
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"components": [
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"status": "partial",
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{
"code": "bus_factor",
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"count": 2
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}
],
"max_points": 54
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{
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}
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{
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{
"key": "openssf_scorecard_contributors",
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"points": 3,
"status": "partial",
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"max_points": 10
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]
},
{
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"note": null,
"notes": [],
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"components": [
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"points": 29.7,
"status": "partial",
"details": [
{
"code": "issues_closed_share",
"params": {
"share": 64
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}
],
"max_points": 46.75
},
{
"key": "pr_acceptance",
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"details": [
{
"code": "decided_prs_merged",
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"max_points": 38.25
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{
"key": "openssf_scorecard_code_review",
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"status": "met",
"details": [],
"max_points": 15
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]
},
{
"key": "stewardship",
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"note": null,
"notes": [],
"value": 80,
"inputs": {
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"is_verified": null,
"owner_login": "uber",
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"account_age_days": 5684
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"components": [
{
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"points": 30,
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"details": [
{
"code": "owner_organization",
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}
],
"max_points": 30
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{
"key": "verified_domain",
"name": "Verified domain",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 20
},
{
"key": "owner_reach",
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"detail": "3,950 followers of uber",
"points": 25,
"status": "met",
"details": [
{
"code": "owner_followers",
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"login": "uber"
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}
],
"max_points": 25
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{
"key": "track_record",
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"points": 25,
"status": "met",
"details": [
{
"code": "public_repos",
"params": {
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},
{
"code": "account_age_years",
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}
],
"max_points": 25
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]
},
{
"key": "package_maintenance",
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"note": null,
"notes": [],
"value": 100,
"inputs": {
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"ecosystems": "go",
"any_deprecated": false,
"min_days_since_publish": 3
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"components": [
{
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"detail": "1 package(s) on go",
"points": 25,
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"details": [
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"code": "packages_published",
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}
],
"max_points": 25
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{
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"detail": "latest publish 3 days ago",
"points": 35,
"status": "met",
"details": [
{
"code": "publish_recency",
"params": {
"days": 3
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}
],
"max_points": 35
},
{
"key": "version_history",
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"detail": "35 published versions",
"points": 20,
"status": "met",
"details": [
{
"code": "published_versions",
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}
],
"max_points": 20
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{
"key": "not_deprecated",
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"detail": "active, not deprecated or yanked",
"points": 20,
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"details": [
{
"code": "package_not_deprecated",
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}
],
"max_points": 20
}
]
}
],
"description": "Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?"
},
{
"key": "engineering",
"band": "good",
"name": "Engineering Quality",
"value": 70,
"weight": 0.2,
"metrics": [
{
"key": "engineering_practices",
"band": "moderate",
"name": "Engineering practices",
"note": null,
"notes": [],
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"inputs": {
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"has_tests": true,
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"components": [
{
"key": "ci_workflows",
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"detail": "1 workflow(s)",
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"status": "met",
"details": [
{
"code": "ci_workflows",
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}
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"max_points": 24
},
{
"key": "tests_present",
"name": "Tests present",
"detail": null,
"points": 24,
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"max_points": 24
},
{
"key": "linter_config",
"name": "Linter config",
"detail": null,
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{
"key": "pre_commit_hooks",
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"points": 0,
"status": "missed",
"details": [],
"max_points": 9.6
},
{
"key": "editorconfig",
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"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 6.4
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{
"key": "openssf_scorecard_ci_tests",
"name": "OpenSSF Scorecard: CI-Tests",
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]
},
{
"key": "documentation",
"band": "good",
"name": "Documentation",
"note": null,
"notes": [],
"value": 75,
"inputs": {
"topics": [
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"golang",
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"target-graph"
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"has_wiki": false,
"homepage": null,
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"components": [
{
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"detail": null,
"points": 30,
"status": "met",
"details": [],
"max_points": 30
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{
"key": "documentation_directory",
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"points": 25,
"status": "met",
"details": [],
"max_points": 25
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{
"key": "documentation_homepage_site",
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"detail": null,
"points": 0,
"status": "missed",
"details": [],
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{
"key": "repository_description",
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"detail": null,
"points": 10,
"status": "met",
"details": [],
"max_points": 10
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{
"key": "topics",
"name": "Topics",
"detail": "4 topics",
"points": 10,
"status": "met",
"details": [
{
"code": "topics_count",
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}
],
"max_points": 10
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{
"key": "wiki",
"name": "Wiki",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 10
}
]
}
],
"description": "Are baseline engineering and documentation practices in place?"
},
{
"key": "security",
"band": "good",
"name": "Security",
"value": 73,
"weight": 0.16,
"metrics": [
{
"key": "security_posture",
"band": "moderate",
"name": "Security posture",
"note": "Excluded from scoring (no data or not applicable): Packaging, Signed-Releases. Remaining weights renormalized.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
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}
},
{
"code": "weights_renormalized",
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],
"value": 66,
"inputs": {
"source": "openssf_scorecard",
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"components": [
{
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"detail": "no binaries found in the repo",
"points": 7.5,
"status": "met",
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"max_points": 7.5
},
{
"key": "branch_protection",
"name": "Branch-Protection",
"detail": "branch protection is not maximal on development and all release branches",
"points": 3.8,
"status": "partial",
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{
"key": "ci_tests",
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"points": 2.2,
"status": "partial",
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{
"key": "cii_best_practices",
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"detail": "no effort to earn an OpenSSF best practices badge detected",
"points": 0,
"status": "missed",
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{
"key": "code_review",
"name": "Code-Review",
"detail": "all changesets reviewed",
"points": 7.5,
"status": "met",
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{
"key": "contributors",
"name": "Contributors",
"detail": "project has 1 contributing companies or organizations -- score normalized to 3",
"points": 0.8,
"status": "partial",
"details": [],
"max_points": 2.5
},
{
"key": "dangerous_workflow",
"name": "Dangerous-Workflow",
"detail": "no dangerous workflow patterns detected",
"points": 10,
"status": "met",
"details": [],
"max_points": 10
},
{
"key": "dependency_update_tool",
"name": "Dependency-Update-Tool",
"detail": "update tool detected",
"points": 7.5,
"status": "met",
"details": [],
"max_points": 7.5
},
{
"key": "fuzzing",
"name": "Fuzzing",
"detail": "project is not fuzzed",
"points": 0,
"status": "missed",
"details": [],
"max_points": 5
},
{
"key": "license",
"name": "License",
"detail": "license file detected",
"points": 2.5,
"status": "met",
"details": [],
"max_points": 2.5
},
{
"key": "maintained",
"name": "Maintained",
"detail": "30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10",
"points": 7.5,
"status": "met",
"details": [],
"max_points": 7.5
},
{
"key": "packaging",
"name": "Packaging",
"detail": "packaging workflow not detected",
"points": 0,
"status": "excluded",
"details": [
{
"code": "no_data",
"params": {}
}
],
"max_points": 5
},
{
"key": "pinned_dependencies",
"name": "Pinned-Dependencies",
"detail": "dependency not pinned by hash detected -- score normalized to 8",
"points": 4,
"status": "partial",
"details": [],
"max_points": 5
},
{
"key": "sast",
"name": "SAST",
"detail": "SAST tool is not run on all commits -- score normalized to 0",
"points": 0,
"status": "missed",
"details": [],
"max_points": 5
},
{
"key": "security_policy",
"name": "Security-Policy",
"detail": "security policy file not detected",
"points": 0,
"status": "missed",
"details": [],
"max_points": 5
},
{
"key": "signed_releases",
"name": "Signed-Releases",
"detail": "no releases found",
"points": 0,
"status": "excluded",
"details": [
{
"code": "no_data",
"params": {}
}
],
"max_points": 7.5
},
{
"key": "token_permissions",
"name": "Token-Permissions",
"detail": "GitHub workflow tokens follow principle of least privilege",
"points": 7.5,
"status": "met",
"details": [],
"max_points": 7.5
},
{
"key": "vulnerabilities",
"name": "Vulnerabilities",
"detail": "11 existing vulnerabilities detected",
"points": 0,
"status": "missed",
"details": [],
"max_points": 7.5
}
]
},
{
"key": "dependency_advisories",
"band": "excellent",
"name": "Dependency advisories",
"note": "Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 51 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.",
"notes": [
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"code": "excluded_no_data",
"params": {
"components": [
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}
},
{
"code": "weights_renormalized",
"params": {}
},
{
"code": "advisories_scope_repository",
"params": {
"assessed": 51
}
},
{
"code": "advisories_repo_graph_caveat",
"params": {}
},
{
"code": "advisories_reachability",
"params": {}
}
],
"value": 100,
"inputs": {
"source": "osv",
"advisories": 13,
"affected_packages": 3,
"assessed_packages": 51,
"unassessed_packages": 0,
"affected_by_severity": "critical 1, moderate 1, unknown 1",
"direct_affected_packages": 0
},
"components": [
{
"key": "direct_dependencies_free_of_known_advisories",
"name": "Direct dependencies free of known advisories",
"detail": "no direct dependency carries a known advisory",
"points": 35,
"status": "met",
"details": [
{
"code": "no_direct_advisories",
"params": {}
}
],
"max_points": 35
},
{
"key": "indirect_dependencies_free_of_known_advisories",
"name": "Indirect dependencies free of known advisories",
"detail": "transitive set not separable from development and test dependencies in this scope",
"points": 0,
"status": "excluded",
"details": [
{
"code": "advisories_scope_not_separable",
"params": {}
}
],
"max_points": 25
},
{
"key": "no_advisories_left_outstanding",
"name": "No advisories left outstanding",
"detail": "no advisory carries a publication date",
"points": 0,
"status": "excluded",
"details": [
{
"code": "advisories_no_publication_date",
"params": {}
}
],
"max_points": 40
}
]
},
{
"key": "malicious_dependencies",
"band": "excellent",
"name": "Malicious dependencies",
"note": null,
"notes": [],
"value": 100,
"inputs": {
"source": "osv",
"meaning": "reported as a malicious package by the OpenSSF corpus; the remedy is removal or moving off the compromised name, never an upgrade of the same artifact. Versions the registry has since pulled are listed but not scored",
"packages": [],
"red_flag": false,
"assessed_packages": 51,
"malicious_packages": 0,
"direct_malicious_packages": 0,
"withdrawn_malicious_packages": 0,
"installable_malicious_packages": 0
},
"components": [
{
"key": "no_dependency_reported_as_a_malicious_package",
"name": "No dependency reported as a malicious package",
"detail": "no dependency is reported as a malicious package",
"points": 100,
"status": "met",
"details": [
{
"code": "no_malicious_dependencies",
"params": {}
}
],
"max_points": 100
}
]
},
{
"key": "high_risk_jurisdiction_exposure",
"band": "excellent",
"name": "High-Risk Jurisdiction Exposure",
"note": "Only high-confidence self-published location evidence affects this multiplier. Ambiguous matches are review-only; country evidence is not proof of nationality, citizenship, legal registration, malicious intent, or sanctions status.",
"notes": [
{
"code": "jurisdiction_evidence_limits",
"params": {}
}
],
"value": 100,
"inputs": {
"meaning": "self-published location evidence; not nationality or citizenship",
"red_flag": false,
"exposures": [],
"policy_countries": [
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"Iran",
"North Korea"
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"review_only_matches": 0,
"assessed_self_published_locations": 6
},
"components": [
{
"key": "policy_exposure_multiplier",
"name": "Policy exposure multiplier",
"detail": "no confirmed policy-scope location match",
"points": 100,
"status": "met",
"details": [
{
"code": "jurisdiction_no_match",
"params": {}
}
],
"max_points": 100
}
]
}
],
"description": "Are visible security and supply-chain practices strong, with no malicious dependency and no unresolved high-risk jurisdiction exposure?"
},
{
"key": "ai_readiness",
"band": "good",
"name": "AI Readiness",
"value": 82,
"weight": 0,
"metrics": [
{
"key": "ai_agent_context",
"band": "good",
"name": "Agent context & guidance",
"note": "Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
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}
},
{
"code": "weights_renormalized",
"params": {}
}
],
"value": 75,
"inputs": {
"has_llms_txt": false,
"legible_history_share": null,
"agent_instruction_files": [
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}
],
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},
{
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}
],
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}
]
},
{
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"notes": [
{
"code": "excluded_no_data",
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},
{
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},
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{
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},
{
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},
{
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}
],
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{
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],
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}
],
"max_points": 10
},
{
"key": "automated_maintenance",
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],
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},
{
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]
},
{
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},
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],
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},
{
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"points": 54.5,
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"oversized": 1
}
}
],
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]
},
{
"key": "ai_interfaces",
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"name": "Machine-readable interfaces",
"note": null,
"notes": [],
"value": 80,
"inputs": {
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],
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"api_schema_files": [
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]
},
"components": [
{
"key": "api_schema_openapi_graphql_proto",
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"detail": "proto/tango.proto",
"points": 40,
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},
{
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},
{
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}
}
],
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}
]
}
],
"description": "How well is the repo equipped to be developed and maintained with AI coding agents? An independent, experimental badge — weight 0.0, so it is surfaced on its own and does not affect the overall health score."
}
],
"metrics_version": "1.13.0"
},
"warnings": [],
"report_type": "repository",
"generated_at": "2026-07-21T05:25:27.022989Z",
"schema_version": "0.17.0",
"badge_url": "https://raw.githubusercontent.com/inspect-software/badges/main/v1/u/uber/tango.svg",
"full_name": "uber/tango",
"license_state": "standard",
"license_spdx": "Apache-2.0"
}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 v1.13.0, schema v0.17.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics — Go.