Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-16 09:28 UTC

teambition / merge2

Merge multiple streams into one stream in sequence or parallel (~119M/month downloads).

JavaScriptMIT★ 171 stars⑂ 15 forkssince Oct 2014View on GitHub ↗

teambition/merge2 holds a health index of 23 out of 100, placing it in the At Risk band. It scores highest on Community & Adoption (63/100) and lowest on Vitality (15/100). It was last updated 237 days ago. A single contributor accounts for most of its recent work.

23
overall / 100
At Risk

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.

23
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 42 is calibrated to 38 on the published index scale (record calibration 2026-08-02).

Ownership

TeambitionOrganization
18 followers68 public repossince Jul 2012

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
npmmerge21.4.1427,315,968232296 days agomerge2multiplesequenceparallelmergestreammerge-streamsync

Metrics by category

Vitality

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

15Critical · 21% of overall
How it's scored
3.6/36Push recency — last push 237 days ago
0/36Commit cadence — 0/52 weeks with commits
0/18Commit volume — 0 commits in the last year
0/10OpenSSF Scorecard: Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Inputs used
commits_last_year0
human_commit_share0.976
days_since_last_push237
active_weeks_last_year0
How it's scored
16.2/27Ships releases — 24 version tags (no GitHub releases)
0/36Release recency — latest release 2,296 days ago
12.6/27Release cadence — a release every ~138.9 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count24
latest_release_tagv1.4.1
releases_from_tagsyes
days_since_latest_release2,296
mean_days_between_releases138.9
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?

63Moderate · 17% of overall
How it's scored
36.2/60Stars — 171 stars
9.6/25Forks — 15 forks
6.4/15Watchers — 15 watchers
Inputs used
forks15
stars171
watchers15
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (MIT)
0/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges0
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_services—
has_pull_request_templateno
How it's scored
80/80Monthly downloads — 427,315,968 downloads/month across npm
0/20Registry dependents — not reported by this ecosystem
Inputs used
packagesmerge2
dependents—
ecosystemsnpm
total_downloads—
monthly_downloads427,315,968
unverified_packages_excluded—
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?

54Moderate · 23% of overall
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
3.3/22.5Commit distribution — top contributor authored 85% of commits
8.1/13.5Contributor breadth — 6 contributors
10/10OpenSSF Scorecard: Contributors — project has 10 contributing companies or organizations
Inputs used
bus_factor1
contributors_sampled6
top_contributor_share0.854
How it's scored
38.5/42Issue resolution — 92% of issues closed
12/30PR acceptance — 6/15 decided PRs merged
0/13Newcomer PR acceptance — no first-time contributor's PR decided in 30d
3/15OpenSSF Scorecard: Code-Review — Found 5/22 approved changesets -- score normalized to 2
Inputs used
merged_prs6
open_issues2
closed_issues22
prs_merged_7d0
prs_decided_7d0
prs_merged_30d0
prs_decided_30d0
issue_closed_ratio0.917
closed_unmerged_prs9
first_time_authors_30d0
first_time_prs_merged_30d0
first_time_prs_decided_30d0
Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.
How it's scored
30/30Ownership backing — organization-owned
0/20Verified domain
9.2/25Owner reach — 18 followers of teambition
25/25Track record — 68 public repos, account ~14 yr old
Inputs used
followers18
owner_typeOrganization
is_verifiedno
owner_loginteambition
public_repos68
account_age_days5,175
How it's scored
25/25Published & resolvable — 1 package(s) on npm
4/35Publish recency — latest publish 2,296 days ago
20/20Version history — 23 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagesmerge2
ecosystemsnpm
any_deprecatedno
min_days_since_publish2,296

Engineering Quality

Are baseline engineering and documentation practices in place?

34At Risk · 19% of overall
How it's scored
0/24CI workflows
24/24Tests present
0/16Linter config
0/9.6Pre-commit hooks
0/6.4.editorconfig
0/20OpenSSF Scorecard: CI-Tests — 0 out of 6 merged PRs checked by a CI test -- score normalized to 0
Inputs used
has_cino
has_testsyes
has_editorconfigno
has_linter_configno
has_precommit_configno

Documentation

50Moderate
How it's scored
30/30README
0/25Documentation directory
0/15Documentation / homepage site
10/10Repository description
0/10Topics
10/10Wiki
Inputs used
topics—
has_wikiyes
homepage—
docs_site—
has_readmeyes
has_docs_dirno
has_descriptionyes

Security

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

47Weak · 16% of overall
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — no data
0/2.5CI-Tests — 0 out of 6 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
1.5/7.5Code-Review — Found 5/22 approved changesets -- score normalized to 2
2.5/2.5Contributors — project has 10 contributing companies or organizations
0/10Dangerous-Workflow — no data
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
0/7.5Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
0/5Packaging — no data
0/5Pinned-Dependencies — no data
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
0/5Security-Policy — security policy file not detected
0/7.5Signed-Releases — no data
0/7.5Token-Permissions — no data
0/7.5Vulnerabilities — 26 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated12
scorecard_versionv5.5.0
checks_inconclusive6
scorecard_aggregate3.4
Excluded from scoring (no data or not applicable): Branch-Protection, Dangerous-Workflow, Packaging, Pinned-Dependencies, Signed-Releases, Token-Permissions. 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
advisories28
affected_packages13
assessed_packages239
unassessed_packages0
affected_by_severitycritical 1, high 8, moderate 3, low 1
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 239 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.

35Weak · 4% of overall
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
13/40Legible commit history — 10 of 41 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.244
agent_instruction_files—
agent_instruction_max_bytes—
How it's scored
0/18One-command bootstrap
22/22Automated tests
0/11Lint / format config
0/11Static type checking
10/10Reproducible environment — lockfile
0/10Demonstrated agent practice — no agent-authored commits among the last 42
8/8Automated maintenance — 1 of the last 42 commits are automated dependency updates
0/10OpenSSF Scorecard: Pinned-Dependencies — no data
Inputs used
has_nixno
has_testsyes
lockfilespackage-lock.json
has_dockerfileno
typed_languageno
bootstrap_files—
has_devcontainerno
has_linter_configno
typecheck_configs—
agent_commit_share0
toolchain_manifests—
dependency_bot_commit_share0.024
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Pinned-Dependencies. Remaining weights renormalized.
How it's scored
0/45Type-checkable code — JavaScript without a type-check config
55/55Manageable file sizes — 0/2 source files over 60KB
Inputs used
primary_languageJavaScript
largest_source_bytes8,939
source_files_sampled2
oversized_source_files0

Key facts

171GitHub stars
6contributors
0commits, last 12 months
237days since last push
24releases
1bus factor
2open issues
npmpackage ecosystems

Data collection warnings

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

More detail

Star and fork history 0 ★ / 15 ⇿
0Stars
15Forks
14Releases

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.

03581013151512015-092021-012026-06
Major 1Minor 4Patch 9

Each point covers 10 days.

OpenSSF Scorecard 3.4 / 10
3.4aggregate

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).Scorecard v5.5.0 · 2026-09-16 09:28 UTC

10Binary-Artifactsno binaries found in the repo
n/aBranch-Protectioninternal error: error during branchesHandler.setup: internal error: some github tokens can't read classic branch protection rules: https://github.com/ossf/scorecard-action/blob/main/docs/authentication/fine-grained-auth-token.md
0CI-Tests0 out of 6 merged PRs checked by a CI test -- score normalized to 0
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
2Code-ReviewFound 5/22 approved changesets -- score normalized to 2
10Contributorsproject has 10 contributing companies or organizations
n/aDangerous-Workflowno workflows found
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
0Maintained0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
n/aPackagingpackaging workflow not detected
n/aPinned-Dependenciesno dependencies found
0SASTSAST tool is not run on all commits -- score normalized to 0
0Security-Policysecurity policy file not detected
n/aSigned-Releasesno releases found
n/aToken-PermissionsNo tokens found
0Vulnerabilities26 existing vulnerabilities detected
All dependencies 239

Full resolved dependency set from the GitHub dependency graph: 0 direct and 239 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
npm@babel/code-frame7.10.1indirect
npm@babel/helper-validator-identifier7.10.1indirect
npm@babel/highlight7.10.1indirect
npm@types/color-name1.1.1indirect
npmacorn7.2.0indirect
npmacorn-jsx5.2.0indirect
npmajv6.12.6indirect
npmansi-escapes4.3.1indirect
npmansi-regex4.1.1indirect
npmansi-regex5.0.1indirect
npmansi-styles3.2.1indirect
npmansi-styles4.2.1indirect
npmargparse1.0.10indirect
npmarray-includes3.1.1indirect
npmastral-regex1.0.0indirect
npmbalanced-match1.0.0indirect
npmbrace-expansion1.1.11indirect
npmcallsites3.1.0indirect
npmchalk2.4.2indirect
npmchalk3.0.0indirect
npmchardet0.7.0indirect
npmcli-cursor3.1.0indirect
npmcli-width2.2.1indirect
npmcolor-convert1.9.3indirect
npmcolor-convert2.0.1indirect
npmcolor-name1.1.3indirect
npmcolor-name1.1.4indirect
npmcommander5.1.0indirect
npmconcat-map0.0.1indirect
npmcontains-path0.1.0indirect
npmcore-util-is1.0.2indirect
npmcross-spawn6.0.5indirect
npmdebug2.6.9indirect
npmdebug4.1.1indirect
npmdebug-log1.0.1indirect
npmdeep-is0.1.3indirect
npmdefine-properties1.1.3indirect
npmdeglob4.0.1indirect
npmdiff4.0.2indirect
npmdoctrine1.5.0indirect
npmdoctrine2.1.0indirect
npmdoctrine3.0.0indirect
npmemoji-regex7.0.3indirect
npmemoji-regex8.0.0indirect
npmerror-ex1.3.2indirect
npmes-abstract1.17.5indirect
npmes-to-primitive1.2.1indirect
npmescape-string-regexp1.0.5indirect
npmeslint6.8.0indirect
npmeslint-config-standard14.1.1indirect
npmeslint-config-standard-jsx8.1.0indirect
npmeslint-import-resolver-node0.3.3indirect
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npmeslint-plugin-es2.0.0indirect
npmeslint-plugin-import2.18.2indirect
npmeslint-plugin-node10.0.0indirect
npmeslint-plugin-promise4.2.1indirect
npmeslint-plugin-react7.14.3indirect
npmeslint-plugin-standard4.0.1indirect
npmeslint-scope5.0.0indirect
npmeslint-utils1.4.3indirect
npmeslint-visitor-keys1.1.0indirect
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npmesprima4.0.1indirect
npmesquery1.3.1indirect
npmesrecurse4.2.1indirect
npmestraverse4.3.0indirect
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npmesutils2.0.3indirect
npmexternal-editor3.1.0indirect
npmfast-deep-equal3.1.1indirect
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npmfigures3.2.0indirect
npmfile-entry-cache5.0.1indirect
npmfind-root1.1.0indirect
npmfind-up2.1.0indirect
npmfind-up3.0.0indirect
npmflat-cache2.0.1indirect
npmflatted2.0.2indirect
npmfs.realpath1.0.0indirect
npmfunction-bind1.1.1indirect
npmfunctional-red-black-tree1.0.1indirect
npmget-stdin7.0.0indirect
npmglob7.1.6indirect
npmglob-parent5.1.2indirect
npmglobals12.4.0indirect
npmgraceful-fs4.2.4indirect
npmhas1.0.3indirect
npmhas-flag3.0.0indirect
npmhas-flag4.0.0indirect
npmhas-symbols1.0.1indirect
npmhosted-git-info2.8.9indirect
npmiconv-lite0.4.24indirect
npmignore4.0.6indirect
npmignore5.1.8indirect
npmimport-fresh3.2.1indirect
npmimurmurhash0.1.4indirect
npminflight1.0.6indirect
npminherits2.0.4indirect
npminquirer7.1.0indirect
npmis-arrayish0.2.1indirect
npmis-callable1.2.0indirect
npmis-date-object1.0.2indirect
npmis-extglob2.1.1indirect
npmis-fullwidth-code-point2.0.0indirect
npmis-fullwidth-code-point3.0.0indirect
npmis-glob4.0.1indirect
npmis-regex1.0.5indirect
npmis-string1.0.5indirect
npmis-symbol1.0.3indirect
npmisarray1.0.0indirect
npmisexe2.0.0indirect
npmjs-tokens4.0.0indirect
npmjs-yaml3.14.0indirect
npmjson-parse-better-errors1.0.2indirect
npmjson-schema-traverse0.4.1indirect
npmjson-stable-stringify-without-jsonify1.0.1indirect
npmjsx-ast-utils2.3.0indirect
npmlevn0.3.0indirect
npmload-json-file2.0.0indirect
npmload-json-file5.3.0indirect
npmlocate-path2.0.0indirect
npmlocate-path3.0.0indirect
npmlodash4.17.21indirect
npmloose-envify1.4.0indirect
npmmimic-fn2.1.0indirect
npmminimatch3.0.4indirect
npmminimist1.2.6indirect
npmmkdirp0.5.5indirect
npmms2.0.0indirect
npmms2.1.2indirect
npmmute-stream0.0.8indirect
npmnatural-compare1.4.0indirect
npmnice-try1.0.5indirect
npmnormalize-package-data2.5.0indirect
npmobject-assign4.1.1indirect
npmobject-inspect1.7.0indirect
npmobject-keys1.1.1indirect
npmobject.assign4.1.0indirect
npmobject.entries1.1.2indirect
npmobject.fromentries2.0.2indirect
npmobject.values1.1.1indirect
npmonce1.4.0indirect
npmonetime5.1.0indirect
npmoptionator0.8.3indirect
npmos-tmpdir1.0.2indirect
npmp-limit1.3.0indirect
npmp-limit2.3.0indirect
npmp-locate2.0.0indirect
npmp-locate3.0.0indirect
npmp-try1.0.0indirect
npmp-try2.2.0indirect
npmparent-module1.0.1indirect
npmparse-json2.2.0indirect
npmparse-json4.0.0indirect
npmpath-exists3.0.0indirect
npmpath-is-absolute1.0.1indirect
npmpath-key2.0.1indirect
npmpath-parse1.0.7indirect
npmpath-type2.0.0indirect
npmpify2.3.0indirect
npmpify4.0.1indirect
npmpkg-conf3.1.0indirect
npmpkg-config1.1.1indirect
npmpkg-dir2.0.0indirect
npmprelude-ls1.1.2indirect
npmprocess-nextick-args2.0.1indirect
npmprogress2.0.3indirect
npmprop-types15.7.2indirect
npmpunycode2.1.1indirect
npmreact-is16.13.1indirect
npmread-pkg2.0.0indirect
npmread-pkg-up2.0.0indirect
npmreadable-stream2.3.7indirect
npmreadable-stream3.6.0indirect
npmregexpp2.0.1indirect
npmregexpp3.1.0indirect
npmresolve1.17.0indirect
npmresolve-from4.0.0indirect
npmrestore-cursor3.1.0indirect
npmrimraf2.6.3indirect
npmrun-async2.4.1indirect
npmrun-parallel1.1.9indirect
npmrxjs6.5.5indirect
npmsafe-buffer5.1.2indirect
npmsafe-buffer5.2.1indirect
npmsafer-buffer2.1.2indirect
npmsemver5.7.1indirect
npmsemver6.3.0indirect
npmshebang-command1.2.0indirect
npmshebang-regex1.0.0indirect
npmsignal-exit3.0.3indirect
npmslice-ansi2.1.0indirect
npmspdx-correct3.1.1indirect
npmspdx-exceptions2.3.0indirect
npmspdx-expression-parse3.0.1indirect
npmspdx-license-ids3.0.5indirect
npmsprintf-js1.0.3indirect
npmstandard14.3.4indirect
npmstandard-engine12.1.0indirect
npmstring-width3.1.0indirect
npmstring-width4.2.0indirect
npmstring.prototype.trimend1.0.1indirect
npmstring.prototype.trimleft2.1.2indirect
npmstring.prototype.trimright2.1.2indirect
npmstring.prototype.trimstart1.0.1indirect
npmstring_decoder1.1.1indirect
npmstring_decoder1.3.0indirect
npmstrip-ansi5.2.0indirect
npmstrip-ansi6.0.0indirect
npmstrip-bom3.0.0indirect
npmstrip-json-comments3.1.0indirect
npmsupports-color5.5.0indirect
npmsupports-color7.1.0indirect
npmtable5.4.6indirect
npmtext-table0.2.0indirect
npmthrough2.3.8indirect
npmthrough22.0.5indirect
npmthrough23.0.1indirect
npmthunks4.9.6indirect
npmtman1.10.0indirect
npmtmp0.0.33indirect
npmto-through2.0.0indirect
npmtslib1.13.0indirect
npmtype-check0.3.2indirect
npmtype-fest0.11.0indirect
npmtype-fest0.3.1indirect
npmtype-fest0.8.1indirect
npmuniq1.0.1indirect
npmuri-js4.2.2indirect
npmutil-deprecate1.0.2indirect
npmv8-compile-cache2.1.1indirect
npmvalidate-npm-package-license3.0.4indirect
npmwhich1.3.1indirect
npmword-wrap1.2.3indirect
npmwrappy1.0.2indirect
npmwrite1.0.3indirect
npmxtend4.0.2indirect
Dependency advisories 13

This repository publishes no package the index resolves, so its own dependency graph was assessed — 239 packages, which also include development and test pins that never ship: 13 carry known advisories, of which 0 are direct.

PackageVersionRelationSeverityAdvisoriesFixed in
flatted2.0.2indirectcritical23.4.2
brace-expansion1.1.11indirecthigh55.0.9
cross-spawn6.0.5indirecthigh17.0.5
js-yaml3.14.0indirecthigh54.3.2
lodash4.17.21indirecthigh34.18.0
minimatch3.0.4indirecthigh410.2.3
semver5.7.1indirecthigh17.5.2
semver6.3.0indirecthigh17.5.2
tmp0.0.33indirecthigh20.2.6
ajv6.12.6indirectmoderate18.18.0
diff4.0.2indirectmoderate18.0.3
word-wrap1.2.3indirectmoderate11.2.4
debug4.1.1indirectlow14.3.1

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 — npm.