Public recordCritical
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-15 07:27 UTC
vilicvane / extendable-error
A simple extendable error class that extends Error.
vilicvane/extendable-error holds a health index of 19 out of 100, placing it in the Critical band. It scores highest on AI Readiness (41/100) and lowest on Vitality (13/100). It was last updated 1221 days ago. A single contributor accounts for most of its recent work.
19
overall / 100Software 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.
19
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)
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 25 is calibrated to 19 on the published index scale (record calibration 2026-08-02).
Ownership
vilicvanePersonal account
507 followers191 public repossince Aug 2011Enverse
This repository is owned by a personal account. A single-owner project carries more continuity risk than an organization-backed one.
Package ecosystems
| Registry | Package | Version | Downloads / mo | Versions | Last publish |
|---|---|---|---|---|---|
| npm | extendable-errorpoints to another repo — not scored | 0.1.7 | 14,872,950 | 8 | 2252 days ago |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
13
Development activity
1Critical
How it's scored
| 0/36 | Push recency — last push 1,221 days ago |
| 0/36 | Commit cadence — 0/52 weeks with commits |
| 0/18 | Commit volume — 0 commits in the last year |
| 0/10 | OpenSSF Scorecard: Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
Inputs used
| commits_last_year | 0 |
| human_commit_share | 1 |
| days_since_last_push | 1,221 |
| active_weeks_last_year | 0 |
Release discipline
32At Risk
How it's scored
| 16.2/27 | Ships releases — 1 version tags (no GitHub releases) |
| 0/36 | Release recency — latest release 2,252 days ago |
| 12.6/27 | Release cadence — cadence unknown (single release) |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 1 |
| latest_release_tag | v0.1.7 |
| releases_from_tags | yes |
| days_since_latest_release | 2,252 |
| mean_days_between_releases | — |
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?
19
Popularity & adoption
14Critical
How it's scored
| 13.7/60 | Stars — 8 stars |
| 0/25 | Forks — 1 forks |
| 0/15 | Watchers — 1 watchers |
Inputs used
| forks | 1 |
| stars | 8 |
| watchers | 1 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
25At Risk
How it's scored
| 22.5/22.5 | README |
| 0/22.5 | License — no license file detected |
| 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 | no |
| readme_badges | 0 |
| has_contributing | no |
| has_issue_template | no |
| has_code_of_conduct | no |
| readme_badge_services | — |
| has_pull_request_template | no |
Sustainability & Governance
Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?
25
Maintainer resilience (bus factor)
10Critical
How it's scored
| 9/54 | Bus factor — 1 contributor(s) cover half of all commits |
| 0/22.5 | Commit distribution — top contributor authored 100% of commits |
| 1.4/13.5 | Contributor breadth — 1 contributors |
| 0/10 | OpenSSF Scorecard: Contributors — project has 0 contributing companies or organizations -- score normalized to 0 |
Inputs used
| bus_factor | 1 |
| contributors_sampled | 1 |
| top_contributor_share | 1 |
Issue & PR responsiveness
1Critical
How it's scored
| 0/42 | Issue resolution — 0% of issues closed |
| 0/30 | PR acceptance — no decided pull requests or no data |
| 0/13 | Newcomer PR acceptance — no first-time contributor's PR decided in 30d |
| 0/15 | OpenSSF Scorecard: Code-Review — Found 0/22 approved changesets -- score normalized to 0 |
Inputs used
| merged_prs | 0 |
| open_issues | 1 |
| closed_issues | 0 |
| prs_merged_7d | 0 |
| prs_decided_7d | 0 |
| prs_merged_30d | 0 |
| prs_decided_30d | 0 |
| issue_closed_ratio | 0 |
| closed_unmerged_prs | 0 |
| first_time_authors_30d | 0 |
| first_time_prs_merged_30d | 0 |
| first_time_prs_decided_30d | 0 |
Excluded from scoring (no data or not applicable): PR acceptance, Newcomer PR acceptance. Remaining weights renormalized.
Ownership & stewardship
68Good
How it's scored
| 10/30 | Ownership backing — personal (user) account |
| 0/20 | Verified domain — not applicable to user accounts |
| 19.5/25 | Owner reach — 507 followers of vilicvane |
| 25/25 | Track record — 191 public repos, account ~15 yr old |
Inputs used
| followers | 507 |
| owner_type | User |
| is_verified | — |
| owner_login | vilicvane |
| public_repos | 191 |
| account_age_days | 5,515 |
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.
Engineering Quality
Are baseline engineering and documentation practices in place?
38
Engineering practices
30At Risk
How it's scored
| 0/24 | CI workflows |
| 24/24 | Tests present |
| 0/16 | Linter config |
| 0/9.6 | Pre-commit hooks |
| 0/6.4 | .editorconfig |
| 0/20 | OpenSSF Scorecard: CI-Tests — no data |
Inputs used
| has_ci | no |
| has_tests | yes |
| has_editorconfig | no |
| has_linter_config | no |
| has_precommit_config | no |
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: CI-Tests. Remaining weights renormalized.
Documentation
50Moderate
How it's scored
| 30/30 | README |
| 0/25 | Documentation directory |
| 0/15 | Documentation / homepage site |
| 10/10 | Repository description |
| 0/10 | Topics |
| 10/10 | Wiki |
Inputs used
| topics | — |
| has_wiki | yes |
| homepage | — |
| docs_site | — |
| 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?
29
Security posture
11Critical
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 — no data |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 0/7.5 | Code-Review — Found 0/22 approved changesets -- score normalized to 0 |
| 0/2.5 | Contributors — project has 0 contributing companies or organizations -- score normalized to 0 |
| 0/10 | Dangerous-Workflow — no data |
| 0/7.5 | Dependency-Update-Tool — no update tool detected |
| 0/5 | Fuzzing — project is not fuzzed |
| 0/2.5 | License — license file not detected |
| 0/7.5 | Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
| 0/5 | Packaging — no data |
| 0/5 | Pinned-Dependencies — no data |
| 0/5 | SAST — no SAST tool detected |
| 0/5 | Security-Policy — security policy file not detected |
| 0/7.5 | Signed-Releases — no data |
| 0/7.5 | Token-Permissions — no data |
| 0/7.5 | Vulnerabilities — 23 existing vulnerabilities detected |
Inputs used
| source | openssf_scorecard |
| checks_evaluated | 12 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 6 |
| scorecard_aggregate | 1.1 |
Excluded from scoring (no data or not applicable): CI-Tests, Dangerous-Workflow, Packaging, Pinned-Dependencies, Signed-Releases, Token-Permissions. Remaining weights renormalized.
Dependency advisories
100Exceptional
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 | 27 |
| affected_packages | 16 |
| assessed_packages | 142 |
| unassessed_packages | 0 |
| affected_by_severity | critical 4, high 8, moderate 4 |
| 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 142 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.
41
Agent context & guidance
1Critical
How it's scored
| 0/45 | Agent instructions — no CLAUDE.md / AGENTS.md / editor rules |
| 0/15 | Machine-readable docs (llms.txt) |
| 0/40 | Legible commit history — 0 of 22 human commits state their intent (structured subject or explanatory body) |
Inputs used
| has_llms_txt | no |
| llms_txt_url | — |
| legible_history_share | 0 |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
How it's scored
| 0/18 | One-command bootstrap |
| 22/22 | Automated tests |
| 0/11 | Lint / format config |
| 11/11 | Static type checking — tsconfig.json |
| 10/10 | Reproducible environment — lockfile |
| 0/10 | Demonstrated agent practice — no agent-authored commits among the last 22 |
| 0/8 | Automated maintenance — no automated dependency updates observed |
| 0/10 | OpenSSF Scorecard: Pinned-Dependencies — no data |
Inputs used
| has_nix | no |
| has_tests | yes |
| lockfiles | yarn.lock |
| has_dockerfile | no |
| typed_language | yes |
| bootstrap_files | — |
| has_devcontainer | no |
| has_linter_config | no |
| typecheck_configs | tsconfig.json |
| agent_commit_share | 0 |
| toolchain_manifests | — |
| dependency_bot_commit_share | 0 |
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Pinned-Dependencies. Remaining weights renormalized.
Code legibility for models
100Exceptional
How it's scored
| 45/45 | Type-checkable code — TypeScript (statically typed) |
| 55/55 | Manageable file sizes — 0/3 source files over 60KB |
Inputs used
| primary_language | TypeScript |
| largest_source_bytes | 3,274 |
| source_files_sampled | 3 |
| oversized_source_files | 0 |
Key facts
8GitHub stars
1contributors
0commits, last 12 months
1,221days since last push
1releases
1bus factor
1open issues
npmpackage ecosystems
Data collection warnings
- Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
- npm package 'extendable-error' points at a different repository (https://github.com/vilic/extendable-error); excluded from ecosystem scoring
More detail
OpenSSF Scorecard 1.1 / 10
1.1aggregate
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 |
| n/a | CI-Tests | no pull request found |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 0 | Code-Review | Found 0/22 approved changesets -- score normalized to 0 |
| 0 | Contributors | project has 0 contributing companies or organizations -- score normalized to 0 |
| n/a | Dangerous-Workflow | no workflows found |
| 0 | Dependency-Update-Tool | no update tool detected |
| 0 | Fuzzing | project is not fuzzed |
| 0 | License | license file not detected |
| 0 | Maintained | 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
| n/a | Packaging | packaging workflow not detected |
| n/a | Pinned-Dependencies | no dependencies found |
| 0 | SAST | no SAST tool detected |
| 0 | Security-Policy | security policy file not detected |
| n/a | Signed-Releases | no releases found |
| n/a | Token-Permissions | No tokens found |
| 0 | Vulnerabilities | 23 existing vulnerabilities detected |
All dependencies 142
Full resolved dependency set from the GitHub dependency graph: 0 direct and 142 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|---|---|---|
| npm | @types/chai | 3.5.2 | indirect |
| npm | @types/mocha | 2.2.48 | indirect |
| npm | @types/node | 7.10.11 | indirect |
| npm | ansi-align | 2.0.0 | indirect |
| npm | ansi-regex | 2.1.1 | indirect |
| npm | ansi-regex | 3.0.0 | indirect |
| npm | ansi-styles | 2.2.1 | indirect |
| npm | ansi-styles | 3.2.1 | indirect |
| npm | assertion-error | 1.1.0 | indirect |
| npm | babel-code-frame | 6.26.0 | indirect |
| npm | balanced-match | 1.0.0 | indirect |
| npm | boxen | 1.3.0 | indirect |
| npm | brace-expansion | 1.1.11 | indirect |
| npm | browser-stdout | 1.3.0 | indirect |
| npm | camelcase | 4.1.0 | indirect |
| npm | capture-stack-trace | 1.0.1 | indirect |
| npm | chai | 3.5.0 | indirect |
| npm | chalk | 1.1.3 | indirect |
| npm | chalk | 2.4.2 | indirect |
| npm | ci-info | 1.6.0 | indirect |
| npm | cli-boxes | 1.0.0 | indirect |
| npm | color-convert | 1.9.3 | indirect |
| npm | color-name | 1.1.3 | indirect |
| npm | colors | 1.4.0 | indirect |
| npm | commander | 2.9.0 | indirect |
| npm | concat-map | 0.0.1 | indirect |
| npm | configstore | 3.1.2 | indirect |
| npm | create-error-class | 3.0.2 | indirect |
| npm | cross-spawn | 5.1.0 | indirect |
| npm | crypto-random-string | 1.0.0 | indirect |
| npm | debug | 2.6.8 | indirect |
| npm | deep-eql | 0.1.3 | indirect |
| npm | deep-extend | 0.6.0 | indirect |
| npm | diff | 3.2.0 | indirect |
| npm | diff | 3.5.0 | indirect |
| npm | dot-prop | 4.2.0 | indirect |
| npm | duplexer3 | 0.1.4 | indirect |
| npm | escape-string-regexp | 1.0.5 | indirect |
| npm | esutils | 2.0.3 | indirect |
| npm | execa | 0.7.0 | indirect |
| npm | findup-sync | 0.3.0 | indirect |
| npm | fs.realpath | 1.0.0 | indirect |
| npm | get-stream | 3.0.0 | indirect |
| npm | glob | 5.0.15 | indirect |
| npm | glob | 7.1.1 | indirect |
| npm | glob | 7.1.6 | indirect |
| npm | global-dirs | 0.1.1 | indirect |
| npm | got | 6.7.1 | indirect |
| npm | graceful-fs | 4.2.4 | indirect |
| npm | graceful-readlink | 1.0.1 | indirect |
| npm | growl | 1.9.2 | indirect |
| npm | has-ansi | 2.0.0 | indirect |
| npm | has-flag | 1.0.0 | indirect |
| npm | has-flag | 3.0.0 | indirect |
| npm | he | 1.1.1 | indirect |
| npm | import-lazy | 2.1.0 | indirect |
| npm | imurmurhash | 0.1.4 | indirect |
| npm | inflight | 1.0.6 | indirect |
| npm | inherits | 2.0.4 | indirect |
| npm | ini | 1.3.5 | indirect |
| npm | is-ci | 1.2.1 | indirect |
| npm | is-fullwidth-code-point | 2.0.0 | indirect |
| npm | is-installed-globally | 0.1.0 | indirect |
| npm | is-npm | 1.0.0 | indirect |
| npm | is-obj | 1.0.1 | indirect |
| npm | is-path-inside | 1.0.1 | indirect |
| npm | is-redirect | 1.0.0 | indirect |
| npm | is-retry-allowed | 1.2.0 | indirect |
| npm | is-stream | 1.1.0 | indirect |
| npm | isexe | 2.0.0 | indirect |
| npm | js-tokens | 3.0.2 | indirect |
| npm | json3 | 3.3.2 | indirect |
| npm | latest-version | 3.1.0 | indirect |
| npm | lodash._baseassign | 3.2.0 | indirect |
| npm | lodash._basecopy | 3.0.1 | indirect |
| npm | lodash._basecreate | 3.0.3 | indirect |
| npm | lodash._getnative | 3.9.1 | indirect |
| npm | lodash._isiterateecall | 3.0.9 | indirect |
| npm | lodash.create | 3.1.1 | indirect |
| npm | lodash.isarguments | 3.1.0 | indirect |
| npm | lodash.isarray | 3.0.4 | indirect |
| npm | lodash.keys | 3.1.2 | indirect |
| npm | lowercase-keys | 1.0.1 | indirect |
| npm | lru-cache | 4.1.5 | indirect |
| npm | make-dir | 1.3.0 | indirect |
| npm | minimatch | 3.0.4 | indirect |
| npm | minimist | 0.0.10 | indirect |
| npm | minimist | 0.0.8 | indirect |
| npm | minimist | 1.2.5 | indirect |
| npm | mkdirp | 0.5.1 | indirect |
| npm | mocha | 3.5.3 | indirect |
| npm | ms | 2.0.0 | indirect |
| npm | npm-run-path | 2.0.2 | indirect |
| npm | once | 1.4.0 | indirect |
| npm | optimist | 0.6.1 | indirect |
| npm | p-finally | 1.0.0 | indirect |
| npm | package-json | 4.0.1 | indirect |
| npm | path-is-absolute | 1.0.1 | indirect |
| npm | path-is-inside | 1.0.2 | indirect |
| npm | path-key | 2.0.1 | indirect |
| npm | path-parse | 1.0.6 | indirect |
| npm | pify | 3.0.0 | indirect |
| npm | prepend-http | 1.0.4 | indirect |
| npm | pseudomap | 1.0.2 | indirect |
| npm | rc | 1.2.8 | indirect |
| npm | registry-auth-token | 3.4.0 | indirect |
| npm | registry-url | 3.1.0 | indirect |
| npm | resolve | 1.17.0 | indirect |
| npm | rimraf | 2.7.1 | indirect |
| npm | safe-buffer | 5.2.1 | indirect |
| npm | semver | 5.7.1 | indirect |
| npm | semver-diff | 2.1.0 | indirect |
| npm | shebang-command | 1.2.0 | indirect |
| npm | shebang-regex | 1.0.0 | indirect |
| npm | signal-exit | 3.0.3 | indirect |
| npm | string-width | 2.1.1 | indirect |
| npm | strip-ansi | 3.0.1 | indirect |
| npm | strip-ansi | 4.0.0 | indirect |
| npm | strip-eof | 1.0.0 | indirect |
| npm | strip-json-comments | 2.0.1 | indirect |
| npm | supports-color | 2.0.0 | indirect |
| npm | supports-color | 3.1.2 | indirect |
| npm | supports-color | 5.5.0 | indirect |
| npm | term-size | 1.2.0 | indirect |
| npm | timed-out | 4.0.1 | indirect |
| npm | tslint | 4.5.1 | indirect |
| npm | tsutils | 1.9.1 | indirect |
| npm | type-detect | 0.1.1 | indirect |
| npm | type-detect | 1.0.0 | indirect |
| npm | typescript | 2.9.2 | indirect |
| npm | unique-string | 1.0.0 | indirect |
| npm | unzip-response | 2.0.1 | indirect |
| npm | update-notifier | 2.5.0 | indirect |
| npm | url-parse-lax | 1.0.0 | indirect |
| npm | vts | 0.1.2 | indirect |
| npm | which | 1.3.1 | indirect |
| npm | widest-line | 2.0.1 | indirect |
| npm | wordwrap | 0.0.3 | indirect |
| npm | wrappy | 1.0.2 | indirect |
| npm | write-file-atomic | 2.4.3 | indirect |
| npm | xdg-basedir | 3.0.0 | indirect |
| npm | yallist | 2.1.2 | indirect |
Dependency advisories 16
This repository publishes no package the index resolves, so its own dependency graph was assessed — 142 packages, which also include development and test pins that never ship: 16 carry known advisories, of which 0 are direct.
| Package | Version | Relation | Severity | Advisories | Fixed in |
|---|---|---|---|---|---|
| growl | 1.9.2 | indirect | critical | 1 | 1.10.0 |
| minimist | 0.0.10 | indirect | critical | 2 | 1.2.6 |
| minimist | 0.0.8 | indirect | critical | 2 | 1.2.6 |
| minimist | 1.2.5 | indirect | critical | 1 | 1.2.6 |
| ansi-regex | 3.0.0 | indirect | high | 1 | 6.0.1 |
| brace-expansion | 1.1.11 | indirect | high | 5 | 5.0.9 |
| cross-spawn | 5.1.0 | indirect | high | 1 | 7.0.5 |
| debug | 2.6.8 | indirect | high | 2 | 4.3.1 |
| dot-prop | 4.2.0 | indirect | high | 1 | 5.1.1 |
| ini | 1.3.5 | indirect | high | 1 | 1.3.6 |
| minimatch | 3.0.4 | indirect | high | 4 | 10.2.3 |
| semver | 5.7.1 | indirect | high | 1 | 7.5.2 |
| diff | 3.2.0 | indirect | moderate | 2 | 8.0.3 |
| diff | 3.5.0 | indirect | moderate | 1 | 8.0.3 |
| got | 6.7.1 | indirect | moderate | 1 | 12.1.0 |
| path-parse | 1.0.6 | indirect | moderate | 1 | 1.0.7 |
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.
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 — npm.