Public recordAt risk
Software health reportschema 0.27.0 · metrics 1.13.0 · 2026-07-28 03:49 UTC
mbta / server_sent_event_stage
A GenStage producer which parses the ServerSentEvent protocol
mbta/server_sent_event_stage holds a health index of 49 out of 100, placing it in the At risk band. It scores highest on Engineering Quality (59/100) and lowest on Community & Adoption (37/100). It was last updated 5 days ago. A single contributor accounts for most of its recent work.
49
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.
49
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
Massachusetts Bay Transportation Authority Organization
202 followers121 public repossince Mar 2016
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 |
|---|---|---|---|---|---|
| Hex | server_sent_event_stage | 1.2.1 | 2,009 | 10 | 720 days ago |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
44
Development activity
39At risk
How it's scored
| 36/36 | Push recency — last push 5 days ago |
| 0.7/36 | Commit cadence — 1/52 weeks with commits |
| 2.7/18 | Commit volume — 1 commits in the last year |
| 0/10 | OpenSSF Scorecard: Maintained — 1 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
Inputs used
| commits_last_year | 1 |
| human_commit_share | 1 |
| days_since_last_push | 5 |
| active_weeks_last_year | 1 |
Release discipline
52Moderate
How it's scored
| 27/27 | Ships releases — 9 releases published |
| 7.2/36 | Release recency — latest release 720 days ago |
| 12.6/27 | Release cadence — a release every ~281.4 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 9 |
| latest_release_tag | v1.2.1 |
| releases_from_tags | no |
| days_since_latest_release | 720 |
| mean_days_between_releases | 281.4 |
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?
37
Popularity & adoption
14Critical
How it's scored
| 4.9/60 | Stars — 3 stars |
| 2.5/25 | Forks — 3 forks |
| 6.2/15 | Watchers — 14 watchers |
Inputs used
| forks | 3 |
| stars | 3 |
| watchers | 14 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
50Moderate
How it's scored
| 22.5/22.5 | README |
| 22.5/22.5 | License — recognized license (MIT) |
| 0/18 | CONTRIBUTING guide |
| 0/13.5 | Code of conduct |
| 0/7.2 | Issue template |
| 0/6.3 | PR template |
Inputs used
| has_readme | yes |
| has_license | yes |
| has_contributing | no |
| has_issue_template | no |
| has_code_of_conduct | no |
| has_pull_request_template | no |
Ecosystem adoption (downloads)
55Moderate
How it's scored
| 44/80 | Monthly downloads — 2,009 downloads/month across hex |
| 0/20 | Registry dependents — not reported by this ecosystem |
Inputs used
| packages | server_sent_event_stage |
| dependents | — |
| ecosystems | hex |
| total_downloads | 174,646 |
| monthly_downloads | 2,009 |
Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.
Sustainability & Governance
Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?
56
Maintainer resilience (bus factor)
35At risk
How it's scored
| 9/54 | Bus factor — 1 contributor(s) cover half of all commits |
| 6.7/22.5 | Commit distribution — top contributor authored 70% of commits |
| 9.5/13.5 | Contributor breadth — 7 contributors |
| 10/10 | OpenSSF Scorecard: Contributors — project has 3 contributing companies or organizations -- score normalized to 10 |
Inputs used
| bus_factor | 1 |
| contributors_sampled | 7 |
| top_contributor_share | 0.703 |
Issue & PR responsiveness
48At risk
How it's scored
| 0/46.8 | Issue resolution — 0% of issues closed |
| 36.3/38.3 | PR acceptance — 19/20 decided PRs merged |
| 12/15 | OpenSSF Scorecard: Code-Review — Found 16/18 approved changesets -- score normalized to 8 |
Inputs used
| merged_prs | 19 |
| open_issues | 1 |
| closed_issues | 0 |
| issue_closed_ratio | 0 |
| closed_unmerged_prs | 1 |
Ownership & stewardship
72Good
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain |
| 16.6/25 | Owner reach — 202 followers of mbta |
| 25/25 | Track record — 121 public repos, account ~10 yr old |
Inputs used
| followers | 202 |
| owner_type | Organization |
| is_verified | — |
| owner_login | mbta |
| public_repos | 121 |
| account_age_days | 3,780 |
Package maintenance
79Good
How it's scored
| 25/25 | Published & resolvable — 1 package(s) on hex |
| 14/35 | Publish recency — latest publish 720 days ago |
| 20/20 | Version history — 10 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | server_sent_event_stage |
| ecosystems | hex |
| any_deprecated | no |
| min_days_since_publish | 720 |
Engineering Quality
Are baseline engineering and documentation practices in place?
59
Engineering practices
48At risk
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 |
| 0/20 | OpenSSF Scorecard: CI-Tests — 1 out of 17 merged PRs checked by a CI test -- score normalized to 0 |
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 |
| 0/25 | Documentation directory |
| 15/15 | Documentation / homepage site — https://hex.pm/packages/server_sent_event_stage |
| 10/10 | Repository description |
| 10/10 | Topics — 2 topics |
| 10/10 | Wiki |
Inputs used
| topics | eventsource, elixir |
| has_wiki | yes |
| homepage | https://hex.pm/packages/server_sent_event_stage |
| has_readme | yes |
| has_docs_dir | no |
| has_description | yes |
Security
Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?
44
Security posture
44At risk
How it's scored
| 7.5/7.5 | Binary-Artifacts — no binaries found in the repo |
| 0/7.5 | Branch-Protection — branch protection not enabled on development/release branches |
| 0/2.5 | CI-Tests — 1 out of 17 merged PRs checked by a CI test -- score normalized to 0 |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 6/7.5 | Code-Review — Found 16/18 approved changesets -- score normalized to 8 |
| 2.5/2.5 | Contributors — project has 3 contributing companies or organizations -- score normalized to 10 |
| 10/10 | Dangerous-Workflow — no dangerous workflow patterns detected |
| 0/7.5 | Dependency-Update-Tool — no update tool detected |
| 0/5 | Fuzzing — project is not fuzzed |
| 2.5/2.5 | License — license file detected |
| 0/7.5 | Maintained — 1 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
| 0/5 | Packaging — no data |
| 5/5 | Pinned-Dependencies — all dependencies are pinned |
| 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 — 26 existing vulnerabilities detected |
Inputs used
| source | openssf_scorecard |
| checks_evaluated | 16 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 2 |
| scorecard_aggregate | 4.4 |
Excluded from scoring (no data or not applicable): packaging, signed_releases. Remaining weights renormalized.
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.
50
Agent context & guidance
40At risk
How it's scored
| 0/45 | Agent instructions — no CLAUDE.md / AGENTS.md / editor rules |
| 0/15 | Machine-readable docs (llms.txt) |
| 40/40 | Legible commit history — 33 of 37 human commits state their intent (structured subject or explanatory body) |
Inputs used
| has_llms_txt | no |
| legible_history_share | 0.892 |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
Verify loop (build / test / typecheck)
55Moderate
How it's scored
| 12.6/18 | One-command bootstrap — mix.exs (toolchain convention, no task runner) |
| 22/22 | Automated tests |
| 0/11 | Lint / format config |
| 0/11 | Static type checking |
| 10/10 | Reproducible environment — lockfile |
| 0/10 | Demonstrated agent practice — no agent-authored commits among the last 37 |
| 0/8 | Automated maintenance — no automated dependency updates observed |
| 10/10 | OpenSSF Scorecard: Pinned-Dependencies — all dependencies are pinned |
Inputs used
| has_nix | no |
| has_tests | yes |
| lockfiles | mix.lock |
| has_dockerfile | no |
| typed_language | no |
| bootstrap_files | — |
| has_devcontainer | no |
| has_linter_config | no |
| typecheck_configs | — |
| agent_commit_share | 0 |
| toolchain_manifests | mix.exs |
| dependency_bot_commit_share | 0 |
Code legibility for models
55Moderate
How it's scored
| 0/45 | Type-checkable code — Elixir without a type-check config |
| 55/55 | Manageable file sizes — 0/8 source files over 60KB |
Inputs used
| primary_language | Elixir |
| largest_source_bytes | 8,682 |
| source_files_sampled | 8 |
| oversized_source_files | 0 |
Key facts
3GitHub stars
7contributors
1commits, last 12 months
5days since last push
9releases
1bus factor
1open issues
Hexpackage ecosystems
Data collection warnings
- Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
More detail
Star and fork history 0 ★ / 3 ⇿
0Stars
3Forks
2Releases
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.
Major 0Minor 1Patch 1
OpenSSF Scorecard 4.4 / 10
4.4aggregate
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 |
| 0 | Branch-Protection | branch protection not enabled on development/release branches |
| 0 | CI-Tests | 1 out of 17 merged PRs checked by a CI test -- score normalized to 0 |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 8 | Code-Review | Found 16/18 approved changesets -- score normalized to 8 |
| 10 | Contributors | project has 3 contributing companies or organizations -- score normalized to 10 |
| 10 | Dangerous-Workflow | no dangerous workflow patterns detected |
| 0 | Dependency-Update-Tool | no update tool detected |
| 0 | Fuzzing | project is not fuzzed |
| 10 | License | license file detected |
| 0 | Maintained | 1 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
| n/a | Packaging | packaging workflow not detected |
| 10 | Pinned-Dependencies | all dependencies are pinned |
| 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 | 26 existing vulnerabilities detected |
Direct dependencies 4
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| Hex | gen_stage | ~> 1.1 | mix.exs |
| Hex | mint | ~> 1.4 | mix.exs |
| Hex | castore | ~> 0.1.0 or ~> 1.0 | mix.exs |
| Hex | ex_doc | ~> 0.22 | mix.exs |
All dependencies 0
Full resolved dependency set from the GitHub dependency graph: 0 direct and 0 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|
Dependency advisories not assessed
Advisory matching could not run for this report: No resolved dependencies to assess
Raw JSON report machine-readable
{
"data": {
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],
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{
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}
],
"max_points": 60
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{
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"code": "forks",
"params": {
"count": 3
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}
],
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{
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}
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]
},
{
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"note": null,
"notes": [],
"value": 50,
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{
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}
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],
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{
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"weight": 0.24,
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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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]
},
{
"key": "stewardship",
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"notes": [],
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"inputs": {
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"components": [
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"code": "owner_organization",
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{
"key": "verified_domain",
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{
"key": "owner_reach",
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{
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]
}
],
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{
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]
},
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"inputs": {
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"key": "documentation_directory",
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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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},
{
"key": "dependency_update_tool",
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"status": "missed",
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},
{
"key": "fuzzing",
"name": "Fuzzing",
"detail": "project is not fuzzed",
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"status": "missed",
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},
{
"key": "license",
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"status": "met",
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},
{
"key": "maintained",
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"points": 0,
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},
{
"key": "packaging",
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"status": "excluded",
"details": [
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"code": "no_data",
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],
"max_points": 5
},
{
"key": "pinned_dependencies",
"name": "Pinned-Dependencies",
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"status": "met",
"details": [],
"max_points": 5
},
{
"key": "sast",
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"status": "missed",
"details": [],
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{
"key": "security_policy",
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"points": 0,
"status": "missed",
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{
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"status": "excluded",
"details": [
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"code": "no_data",
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],
"max_points": 7.5
},
{
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{
"key": "vulnerabilities",
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"status": "missed",
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]
},
{
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"notes": [
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"code": "jurisdiction_evidence_limits",
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],
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"inputs": {
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"components": [
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"code": "jurisdiction_no_match",
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}
],
"max_points": 100
}
]
}
],
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{
"key": "ai_readiness",
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"metrics": [
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"key": "ai_agent_context",
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"components": [
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"status": "missed",
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"code": "no_agent_instructions",
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],
"max_points": 45
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{
"key": "machine_readable_docs_llms_txt",
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"points": 0,
"status": "missed",
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},
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"details": [
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"code": "legible_history",
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}
],
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]
},
{
"key": "ai_verify_loop",
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"notes": [],
"value": 55,
"inputs": {
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"components": [
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"key": "one_command_bootstrap",
"name": "One-command bootstrap",
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"status": "partial",
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"code": "toolchain_convention",
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],
"max_points": 18
},
{
"key": "automated_tests",
"name": "Automated tests",
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"points": 22,
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},
{
"key": "lint_format_config",
"name": "Lint / format config",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 11
},
{
"key": "static_type_checking",
"name": "Static type checking",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 11
},
{
"key": "reproducible_environment",
"name": "Reproducible environment",
"detail": "lockfile",
"points": 10,
"status": "met",
"details": [
{
"code": "file_list",
"params": {
"files": "lockfile"
}
}
],
"max_points": 10
},
{
"key": "demonstrated_agent_practice",
"name": "Demonstrated agent practice",
"detail": "no agent-authored commits among the last 37",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_agent_authored_commits",
"params": {
"sampled": 37
}
}
],
"max_points": 10
},
{
"key": "automated_maintenance",
"name": "Automated maintenance",
"detail": "no automated dependency updates observed",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_dependency_automation",
"params": {}
}
],
"max_points": 8
},
{
"key": "openssf_scorecard_pinned_dependencies",
"name": "OpenSSF Scorecard: Pinned-Dependencies",
"detail": "all dependencies are pinned",
"points": 10,
"status": "met",
"details": [],
"max_points": 10
}
]
},
{
"key": "ai_code_legibility",
"band": "moderate",
"name": "Code legibility for models",
"note": null,
"notes": [],
"value": 55,
"inputs": {
"primary_language": "Elixir",
"largest_source_bytes": 8682,
"source_files_sampled": 8,
"oversized_source_files": 0
},
"components": [
{
"key": "type_checkable_code",
"name": "Type-checkable code",
"detail": "Elixir without a type-check config",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_typecheck_config_language",
"params": {
"language": "Elixir"
}
}
],
"max_points": 45
},
{
"key": "manageable_file_sizes",
"name": "Manageable file sizes",
"detail": "0/8 source files over 60KB",
"points": 55,
"status": "met",
"details": [
{
"code": "oversized_source_files",
"params": {
"kb": 60,
"sampled": 8,
"oversized": 0
}
}
],
"max_points": 55
}
]
}
],
"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": [
"Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token"
],
"report_type": "repository",
"generated_at": "2026-07-28T03:49:20.433472Z",
"schema_version": "0.27.0",
"badge_url": "https://raw.githubusercontent.com/inspect-software/badges/main/v1/m/mbta/server_sent_event_stage.svg",
"full_name": "mbta/server_sent_event_stage",
"license_state": "standard",
"license_spdx": "MIT"
}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 v0.27.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics — Hex.