Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-14 04:22 UTC

observablehq / prettier

Prettier is an opinionated code formatter.

JavaScriptMIT★ 6 stars⑂ 1 forksince Sep 2019forkView on GitHub ↗
KindCommand-line toolNetwork serviceLibraryWeb interfacehow this is determined

observablehq/prettier holds a health index of 23 out of 100, placing it in the At Risk band. It scores highest on Sustainability & Governance (64/100) and lowest on Community & Adoption (18/100). It was last updated 675 days ago. 4 contributors account 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

ObservableOrganization · verified domain
1,396 followers68 public repossince Jul 2017

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publish
npm@observablehq/prettierpoints to another repo — not scored2.7.1-alpha.422913675 days ago

Metrics by category

Vitality

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

20At Risk · 21% of overall
How it's scored
0/36Push recencylast push 675 days ago
0/36Commit cadence0/52 weeks with commits
0/18Commit volume0 commits in the last year
0/10OpenSSF Scorecard: Maintained0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Inputs used
commits_last_year0
human_commit_share0.82
days_since_last_push675
active_weeks_last_year0
How it's scored
16.2/27Ships releases98 version tags (no GitHub releases)
0/36Release recencylatest release 2,116 days ago
27/27Release cadencea release every ~27.9 days
0/10OpenSSF Scorecard: Signed-Releasesno data
Inputs used
releases_count98
latest_release_tag2.2.1
releases_from_tagsyes
days_since_latest_release2,116
mean_days_between_releases27.9
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?

18Critical · 17% of overall
How it's scored
11.3/60Stars6 stars
0/25Forks1 forks
0/15Watchers0 watchers
Inputs used
forks1
stars6
watchers0
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
0/22.5README
22.5/22.5Licenserecognized license (MIT)
0/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeno
has_licenseno
readme_badges9
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_servicesshields.io
has_pull_request_templateno

Sustainability & Governance

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

64Moderate · 23% of overall
How it's scored
43.2/54Bus factor4 contributor(s) cover half of all commits
17.7/22.5Commit distributiontop contributor authored 21% of commits
13.5/13.5Contributor breadth97 contributors
10/10OpenSSF Scorecard: Contributorsproject has 90 contributing companies or organizations
Inputs used
bus_factor4
contributors_sampled97
top_contributor_share0.214
How it's scored
0/42Issue resolutionno issues or no data
0.3/30PR acceptance4/461 decided PRs merged
0/13Newcomer PR acceptanceno first-time contributor's PR decided in 30d
3/15OpenSSF Scorecard: Code-ReviewFound 2/8 approved changesets -- score normalized to 2
Inputs used
merged_prs4
open_issues0
closed_issues0
prs_merged_7d0
prs_decided_7d0
prs_merged_30d0
prs_decided_30d0
issue_closed_ratio
closed_unmerged_prs457
first_time_authors_30d0
first_time_prs_merged_30d0
first_time_prs_decided_30d0
Excluded from scoring (no data or not applicable): Issue resolution, Newcomer PR acceptance. Remaining weights renormalized.
How it's scored
30/30Ownership backingorganization-owned
20/20Verified domain
22.6/25Owner reach1,396 followers of observablehq
25/25Track record68 public repos, account ~9 yr old
Inputs used
followers1,396
owner_typeOrganization
is_verifiedyes
owner_loginobservablehq
public_repos68
account_age_days3,351

Engineering Quality

Are baseline engineering and documentation practices in place?

62Moderate · 19% of overall
How it's scored
24/24CI workflows13 workflow(s)
24/24Tests present
16/16Linter config.eslintrc.js
0/9.6Pre-commit hooks
6.4/6.4.editorconfig
0/20OpenSSF Scorecard: CI-Tests0 out of 4 merged PRs checked by a CI test -- score normalized to 0
Inputs used
has_ciyes
has_testsyes
has_editorconfigyes
has_linter_configyes
has_precommit_configno

Documentation

50Moderate
How it's scored
0/30README
25/25Documentation directory
15/15Documentation / homepage sitehttps://prettier.io
0/10Repository description
0/10Topics
10/10Wiki
Inputs used
topics
has_wikiyes
homepagehttps://prettier.io
docs_sitehttps://prettier.io
has_readmeno
has_docs_diryes
has_descriptionno

Security

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

39Weak · 16% of overall
How it's scored
7.5/7.5Binary-Artifactsno binaries found in the repo
0/7.5Branch-Protectionbranch protection not enabled on development/release branches
0/2.5CI-Tests0 out of 4 merged PRs checked by a CI test -- score normalized to 0
0/2.5CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
1.5/7.5Code-ReviewFound 2/8 approved changesets -- score normalized to 2
2.5/2.5Contributorsproject has 90 contributing companies or organizations
10/10Dangerous-Workflowno dangerous workflow patterns detected
7.5/7.5Dependency-Update-Toolupdate tool detected
0/5Fuzzingproject is not fuzzed
2.5/2.5Licenselicense file detected
0/7.5Maintained0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
0/5Packagingno data
0/5Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0/5SASTSAST tool is not run on all commits -- score normalized to 0
5/5Security-Policysecurity policy file detected
0/7.5Signed-Releasesno data
0/7.5Token-Permissionsdetected GitHub workflow tokens with excessive permissions
0/7.5Vulnerabilities115 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated16
scorecard_versionv5.5.0
checks_inconclusive2
scorecard_aggregate3.9
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? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

58Moderate · 4% of overall
How it's scored
0/45Agent instructionsno CLAUDE.md / AGENTS.md / editor rules
15/15Machine-readable docs (llms.txt)llms.txt served by the project website (https://prettier.io/llms.txt)
33.8/40Legible commit history52 of 82 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtyes
llms_txt_urlhttps://prettier.io/llms.txt
legible_history_share0.634
agent_instruction_files
agent_instruction_max_bytes
How it's scored
0/18One-command bootstrap
22/22Automated tests
11/11Lint / format config.eslintrc.js
11/11Static type checkingtsconfig.json
10/10Reproducible environmentlockfile
0/10Demonstrated agent practiceno agent-authored commits among the last 100
8/8Automated maintenance18 of the last 100 commits are automated dependency updates
0/10OpenSSF Scorecard: Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsyes
lockfilesyarn.lock
has_dockerfileno
typed_languageno
bootstrap_files
has_devcontainerno
has_linter_configyes
typecheck_configstsconfig.json
agent_commit_share0
toolchain_manifests
dependency_bot_commit_share0.18
How it's scored
27/45Type-checkable codeJavaScript with type-check config (tsconfig.json)
55/55Manageable file sizes2/4,268 source files over 60KB
Inputs used
primary_languageJavaScript
largest_source_bytes329,583
source_files_sampled4,268
oversized_source_files2
How it's scored
40/40API schema (OpenAPI/GraphQL/proto)tests/format/graphql/arguments/hello.graphql, tests/format/graphql/bracket-spacing/bracket_spacing.graphql, tests/format/graphql/comments/argument_comment.graphql, tests/format/graphql/comments/fields.graphql, tests/format/graphql/comments/interfaces.graphql, tests/format/graphql/comments/tokens.graphql, tests/format/graphql/definitions/fields.graphql, tests/format/graphql/deprecation/directives.graphql, tests/format/graphql/directive-decl/directive_decl.graphql, tests/format/graphql/directives/directives.graphql, tests/format/graphql/enum/enum.graphql, tests/format/graphql/fields/fields.graphql, tests/format/graphql/fragment-variables/fragment_variables.graphql, tests/format/graphql/fragments/fragments.graphql, tests/format/graphql/hello/hello.graphql, tests/format/graphql/interface/interface.graphql, tests/format/graphql/interface/object_type_def.graphql, tests/format/graphql/interface/object_type_def_mixed_syntax.graphql, tests/format/graphql/interface/object_type_def_old_syntax.graphql, tests/format/graphql/interface/separator-detection.graphql, tests/format/graphql/kitchen-sink/kitchen_sink.graphql, tests/format/graphql/kitchen-sink/schema_kitchen_sink.graphql, tests/format/graphql/lists/lists.graphql, tests/format/graphql/newline/__snapshots__/obj_type_def.graphql, tests/format/graphql/newline/directive_decl.graphql, tests/format/graphql/newline/directives.graphql, tests/format/graphql/newline/enum.graphql, tests/format/graphql/newline/fields.graphql, tests/format/graphql/newline/input.graphql, tests/format/graphql/newline/interface.graphql, tests/format/graphql/newline/object_type_def.graphql, tests/format/graphql/newline/schema.graphql, tests/format/graphql/object-type-def/arguments.graphql, tests/format/graphql/object-type-def/directives.graphql, tests/format/graphql/object-type-def/extend.graphql, tests/format/graphql/object-type-def/implements.graphql, tests/format/graphql/object-type-def/input.graphql, tests/format/graphql/object-type-def/object_type_def.graphql, tests/format/graphql/objects/objects.graphql, tests/format/graphql/prettier-ignore/prettier-ignore-comment.graphql, tests/format/graphql/range/issue2296.graphql, tests/format/graphql/scalar/scalar.graphql, tests/format/graphql/schema/schema.graphql, tests/format/graphql/string/description.graphql, tests/format/graphql/string/string.graphql, tests/format/graphql/trailing-comma/trailing.graphql, tests/format/graphql/type-extension-definition/type-extendsion-syntax.graphql, tests/format/graphql/union-types/union_types.graphql, tests/format/graphql/variable-definitions/variable_definitions.graphql, tests/format/misc/errors/graphql/type-interfaces.graphql, tests/format/misc/insert-pragma/graphql/with-pragma.graphql, tests/format/misc/insert-pragma/graphql/without-pragma.graphql, tests/format/misc/require-pragma/graphql/with-pragma.graphql, tests/format/misc/require-pragma/graphql/without-pragma.graphql
0/20MCP server
0/40Runnable examples
Inputs used
example_dirs
has_mcp_signalno
api_schema_filestests/format/graphql/arguments/hello.graphql, tests/format/graphql/bracket-spacing/bracket_spacing.graphql, tests/format/graphql/comments/argument_comment.graphql, tests/format/graphql/comments/fields.graphql, tests/format/graphql/comments/interfaces.graphql, tests/format/graphql/comments/tokens.graphql, tests/format/graphql/definitions/fields.graphql, tests/format/graphql/deprecation/directives.graphql, tests/format/graphql/directive-decl/directive_decl.graphql, tests/format/graphql/directives/directives.graphql, tests/format/graphql/enum/enum.graphql, tests/format/graphql/fields/fields.graphql, tests/format/graphql/fragment-variables/fragment_variables.graphql, tests/format/graphql/fragments/fragments.graphql, tests/format/graphql/hello/hello.graphql, tests/format/graphql/interface/interface.graphql, tests/format/graphql/interface/object_type_def.graphql, tests/format/graphql/interface/object_type_def_mixed_syntax.graphql, tests/format/graphql/interface/object_type_def_old_syntax.graphql, tests/format/graphql/interface/separator-detection.graphql, tests/format/graphql/kitchen-sink/kitchen_sink.graphql, tests/format/graphql/kitchen-sink/schema_kitchen_sink.graphql, tests/format/graphql/lists/lists.graphql, tests/format/graphql/newline/__snapshots__/obj_type_def.graphql, tests/format/graphql/newline/directive_decl.graphql, tests/format/graphql/newline/directives.graphql, tests/format/graphql/newline/enum.graphql, tests/format/graphql/newline/fields.graphql, tests/format/graphql/newline/input.graphql, tests/format/graphql/newline/interface.graphql, tests/format/graphql/newline/object_type_def.graphql, tests/format/graphql/newline/schema.graphql, tests/format/graphql/object-type-def/arguments.graphql, tests/format/graphql/object-type-def/directives.graphql, tests/format/graphql/object-type-def/extend.graphql, tests/format/graphql/object-type-def/implements.graphql, tests/format/graphql/object-type-def/input.graphql, tests/format/graphql/object-type-def/object_type_def.graphql, tests/format/graphql/objects/objects.graphql, tests/format/graphql/prettier-ignore/prettier-ignore-comment.graphql, tests/format/graphql/range/issue2296.graphql, tests/format/graphql/scalar/scalar.graphql, tests/format/graphql/schema/schema.graphql, tests/format/graphql/string/description.graphql, tests/format/graphql/string/string.graphql, tests/format/graphql/trailing-comma/trailing.graphql, tests/format/graphql/type-extension-definition/type-extendsion-syntax.graphql, tests/format/graphql/union-types/union_types.graphql, tests/format/graphql/variable-definitions/variable_definitions.graphql, tests/format/misc/errors/graphql/type-interfaces.graphql, tests/format/misc/insert-pragma/graphql/with-pragma.graphql, tests/format/misc/insert-pragma/graphql/without-pragma.graphql, tests/format/misc/require-pragma/graphql/with-pragma.graphql, tests/format/misc/require-pragma/graphql/without-pragma.graphql
interfaces_expected_ofnetwork-service

Key facts

6GitHub stars
97contributors
0commits, last 12 months
675days since last push
98releases
4bus factor
0open issues
npmpackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • Community profile unavailable
  • npm package '@observablehq/prettier' points at a different repository (https://github.com/prettier/prettier); excluded from ecosystem scoring

More detail

OpenSSF Scorecard 3.9 / 10
3.9aggregate

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 · 2026-09-14 04:22 UTC

10Binary-Artifactsno binaries found in the repo
0Branch-Protectionbranch protection not enabled on development/release branches
0CI-Tests0 out of 4 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 2/8 approved changesets -- score normalized to 2
10Contributorsproject has 90 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
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
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTSAST tool is not run on all commits -- score normalized to 0
10Security-Policysecurity policy file detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
0Vulnerabilities115 existing vulnerabilities detected
Direct dependencies 83
RegistryPackageVersion constraintManifest
npm@angular/compiler12.2.16package.json
npm@babel/code-frame7.16.7package.json
npm@babel/parser7.18.0package.json
npm@glimmer/syntax0.84.2package.json
npm@iarna/toml2.2.5package.json
npm@typescript-eslint/typescript-estree5.27.0package.json
npmacorn8.7.0package.json
npmacorn-jsx5.3.2package.json
npmangular-estree-parser2.5.1package.json
npmangular-html-parser1.8.0package.json
npmcamelcase6.3.0package.json
npmchalk5.0.1package.json
npmci-info3.3.0package.json
npmcjk-regex2.0.1package.json
npmcosmiconfig7.0.1package.json
npmcss-units-list1.1.0package.json
npmdashify2.0.0package.json
npmdiff5.0.0package.json
npmeditorconfig0.15.3package.json
npmeditorconfig-to-prettier0.2.0package.json
npmescape-string-regexp5.0.0package.json
npmespree9.3.1package.json
npmesutils2.0.3package.json
npmfast-glob3.2.11package.json
npmfast-json-stable-stringify2.1.0package.json
npmfile-entry-cache6.0.1package.json
npmfind-cache-dir3.3.2package.json
npmfind-parent-dir0.3.1package.json
npmflow-parser0.180.0package.json
npmget-stdin8.0.0package.json
npmgraphql15.6.1package.json
npmhtml-element-attributes3.1.0package.json
npmhtml-styles1.0.0package.json
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npmignore5.2.0package.json
npmjest-docblock27.5.1package.json
npmjson52.2.1package.json
npmleven4.0.0package.json
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npmlinguist-languages7.21.0package.json
npmmem9.0.2package.json
npmmeriyah4.2.1package.json
npmmicromatch4.0.5package.json
npmminimist1.2.6package.json
npmn-readlines1.0.1package.json
npmoutdent0.8.0package.json
npmparse-srcsetikatyang/parse-srcset#54eb9c1cb21db5c62b4d0e275d7249516df6f0eepackage.json
npmplease-upgrade-node3.2.0package.json
npmpostcss-less3.1.4package.json
npmpostcss-media-query-parser0.2.3package.json
npmpostcss-scss2.1.1package.json
npmpostcss-selector-parser2.2.3package.json
npmpostcss-values-parser2.0.1package.json
npmregexp-util1.2.2package.json
npmremark-footnotes2.0.0package.json
npmremark-math3.0.1package.json
npmremark-parse8.0.3package.json
npmresolve1.22.0package.json
npmsdbm2.0.0package.json
npmsemver7.3.7package.json
npmstring-width5.0.1package.json
npmstrip-ansi7.0.1package.json
npmtypescript4.7.2package.json
npmunicode-regex3.0.0package.json
npmunified9.2.1package.json
npmvnopts1.0.2package.json
npmwcwidth1.0.1package.json
npmyaml-unist-parser1.3.1package.json
npmclipboard2.0.10website/package.json
npmcodemirror-graphql1.2.15website/package.json
npmlz-string1.4.4website/package.json
npmprop-types15.8.1website/package.json
npmreact17.0.2website/package.json
npmreact-dom17.0.2website/package.json
npmchalk4.1.2scripts/release/package.json
npmenquirer2.3.6scripts/release/package.json
npmexeca6.1.0scripts/release/package.json
npmminimist1.2.6scripts/release/package.json
npmnode-fetch3.2.3scripts/release/package.json
npmoutdent0.8.0scripts/release/package.json
npmsemver7.3.7scripts/release/package.json
npmstring-width5.1.2scripts/release/package.json
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.

RegistryPackageVersionRelation
Dependency advisories not assessed

Advisory matching could not run for this report: No resolved dependencies to assess

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 statisticsnpm.