Public recordModerate
Software health reportschema 0.12.0 · metrics 1.13.0 · 2026-07-18 07:10 UTC
yjs / y-crdt
Rust port of Yjs
yjs/y-crdt holds a health index of 63 out of 100, placing it in the Moderate band. It scores highest on Vitality (76/100) and lowest on AI Readiness (41/100). It was last updated 5 days ago. A single contributor accounts for most of its recent work.
63
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.
63
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
y-crdtOrganization
117 followers18 public repossince Nov 2020
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 | Tags |
|---|---|---|---|---|---|---|
| crates.io | yffi | 0.27.3 | 128 | 79 | 5 days ago | c-fficrdtyrs |
| crates.io | yrspoints to another repo — not scored | 0.27.3 | 205,048 | 80 | 5 days ago | crdtyrs |
| crates.io | ywasm | 0.19.2 | 54 | 59 | 730 days ago | crdtwasmyrs |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
76
Development activity
76Good
How it's scored
| 36/36 | Push recency — last push 5 days ago |
| 12.5/36 | Commit cadence — 18/52 weeks with commits |
| 18/18 | Commit volume — 120 commits in the last year |
| 10/10 | OpenSSF Scorecard: Maintained — 30 commit(s) and 5 issue activity found in the last 90 days -- score normalized to 10 |
Inputs used
| commits_last_year | 120 |
| human_commit_share | — |
| days_since_last_push | 5 |
| active_weeks_last_year | 18 |
Release discipline
76Good
How it's scored
| 27/27 | Ships releases — 8 releases published |
| 36/36 | Release recency — latest release 5 days ago |
| 12.6/27 | Release cadence — a release every ~241.4 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases. |
Inputs used
| releases_count | 8 |
| latest_release_tag | v0.27.3 |
| releases_from_tags | no |
| days_since_latest_release | 5 |
| mean_days_between_releases | 241.4 |
Community & Adoption
Does the project have users, downloads, attention, and a welcoming setup for contributors?
57
Popularity & adoption
80Good
How it's scored
| 54/60 | Stars — 2,119 stars |
| 17.6/25 | Forks — 131 forks |
| 8/15 | Watchers — 28 watchers |
Inputs used
| forks | 131 |
| stars | 2,119 |
| watchers | 28 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
44At risk
How it's scored
| 22.5/22.5 | README |
| 16.9/22.5 | License — license file present, not a recognized license |
| 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)
38At risk
How it's scored
| 30.2/80 | Monthly downloads — 182 downloads/month across crates |
| 0/20 | Registry dependents — not reported by this ecosystem |
Inputs used
| packages | yffi, ywasm |
| dependents | — |
| ecosystems | crates |
| total_downloads | 143,811 |
| monthly_downloads | 182 |
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?
63
Maintainer resilience (bus factor)
36At risk
How it's scored
| 9/54 | Bus factor — 1 contributor(s) cover half of all commits |
| 3.5/22.5 | Commit distribution — top contributor authored 85% of commits |
| 13.5/13.5 | Contributor breadth — 37 contributors |
| 10/10 | OpenSSF Scorecard: Contributors — project has 9 contributing companies or organizations |
Inputs used
| bus_factor | 1 |
| contributors_sampled | 37 |
| top_contributor_share | 0.846 |
Issue & PR responsiveness
64Moderate
How it's scored
| 27.2/46.8 | Issue resolution — 58% of issues closed |
| 34.3/38.3 | PR acceptance — 349/389 decided PRs merged |
| 3/15 | OpenSSF Scorecard: Code-Review — Found 3/12 approved changesets -- score normalized to 2 |
Inputs used
| merged_prs | 349 |
| open_issues | 101 |
| closed_issues | 140 |
| issue_closed_ratio | 0.581 |
| closed_unmerged_prs | 40 |
Ownership & stewardship
66Moderate
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain |
| 14.9/25 | Owner reach — 117 followers of y-crdt |
| 20.6/25 | Track record — 18 public repos, account ~5 yr old |
Inputs used
| followers | 117 |
| owner_type | Organization |
| is_verified | — |
| owner_login | y-crdt |
| public_repos | 18 |
| account_age_days | 2,068 |
Package maintenance
100Excellent
How it's scored
| 25/25 | Published & resolvable — 2 package(s) on crates |
| 35/35 | Publish recency — latest publish 5 days ago |
| 20/20 | Version history — 79 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | yffi, ywasm |
| ecosystems | crates |
| any_deprecated | no |
| min_days_since_publish | 5 |
Engineering Quality
Are baseline engineering and documentation practices in place?
71
Engineering practices
68Moderate
How it's scored
| 24/24 | CI workflows — 2 workflow(s) |
| 24/24 | Tests present |
| 0/16 | Linter config |
| 0/9.6 | Pre-commit hooks |
| 0/6.4 | .editorconfig |
| 20/20 | OpenSSF Scorecard: CI-Tests — 12 out of 12 merged PRs checked by a CI test -- score normalized to 10 |
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://docs.rs/yrs/ |
| 10/10 | Repository description |
| 10/10 | Topics — 3 topics |
| 10/10 | Wiki |
Inputs used
| topics | yjs, crdt, rust |
| has_wiki | yes |
| homepage | https://docs.rs/yrs/ |
| 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?
42
Security posture
42At risk
How it's scored
| 7.5/7.5 | Binary-Artifacts — no binaries found in the repo |
| 0/7.5 | Branch-Protection — no data |
| 2.5/2.5 | CI-Tests — 12 out of 12 merged PRs checked by a CI test -- score normalized to 10 |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 1.5/7.5 | Code-Review — Found 3/12 approved changesets -- score normalized to 2 |
| 2.5/2.5 | Contributors — project has 9 contributing companies or organizations |
| 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 |
| 2.2/2.5 | License — license file detected |
| 7.5/7.5 | Maintained — 30 commit(s) and 5 issue activity found in the last 90 days -- score normalized to 10 |
| 0/5 | Packaging — no data |
| 0/5 | Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0 |
| 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 — Project has not signed or included provenance with any releases. |
| 0/7.5 | Token-Permissions — detected GitHub workflow tokens with excessive permissions |
| 5.2/7.5 | Vulnerabilities — 3 existing vulnerabilities detected |
Inputs used
| source | openssf_scorecard |
| checks_evaluated | 16 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 2 |
| scorecard_aggregate | 4.2 |
Excluded from scoring (no data or not applicable): branch_protection, packaging. 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.
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 — no data |
Inputs used
| has_llms_txt | no |
| legible_history_share | — |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.
Verify loop (build / test / typecheck)
52Moderate
How it's scored
| 0/18 | One-command bootstrap |
| 22/22 | Automated tests |
| 0/11 | Lint / format config |
| 11/11 | Static type checking — Rust (statically typed) |
| 10/10 | Reproducible environment — lockfile |
| 0/10 | Demonstrated agent practice — no data |
| 0/8 | Automated maintenance — no data |
| 0/10 | OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0 |
Inputs used
| has_nix | no |
| has_tests | yes |
| lockfiles | Cargo.lock, package-lock.json |
| has_dockerfile | no |
| typed_language | yes |
| bootstrap_files | — |
| has_devcontainer | no |
| has_linter_config | no |
| typecheck_configs | — |
| agent_commit_share | — |
| toolchain_manifests | — |
| dependency_bot_commit_share | — |
Excluded from scoring (no data or not applicable): Demonstrated agent practice, Automated maintenance. Remaining weights renormalized.
Code legibility for models
93Excellent
How it's scored
| 45/45 | Type-checkable code — Rust (statically typed) |
| 47.8/55 | Manageable file sizes — 12/92 source files over 60KB |
Inputs used
| primary_language | Rust |
| largest_source_bytes | 308,388 |
| source_files_sampled | 92 |
| oversized_source_files | 12 |
Key facts
2,119GitHub stars
37contributors
120commits, last 12 months
5days since last push
8releases
1bus factor
101open issues
crates.io, npmpackage ecosystems
Data collection warnings
- Could not fetch npm package 'tests-wasm' from its registry
- crates package 'yrs' points at a different repository (https://github.com/y-crdt/y-crdt/); excluded from ecosystem scoring
- GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository
More detail
OpenSSF Scorecard 4.2 / 10
4.2aggregate
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 |
| n/a | Branch-Protection | internal 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 |
| 10 | CI-Tests | 12 out of 12 merged PRs checked by a CI test -- score normalized to 10 |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 2 | Code-Review | Found 3/12 approved changesets -- score normalized to 2 |
| 10 | Contributors | project has 9 contributing companies or organizations |
| 10 | Dangerous-Workflow | no dangerous workflow patterns detected |
| 0 | Dependency-Update-Tool | no update tool detected |
| 0 | Fuzzing | project is not fuzzed |
| 9 | License | license file detected |
| 10 | Maintained | 30 commit(s) and 5 issue activity found in the last 90 days -- score normalized to 10 |
| n/a | Packaging | packaging workflow not detected |
| 0 | Pinned-Dependencies | dependency not pinned by hash detected -- score normalized to 0 |
| 0 | SAST | SAST tool is not run on all commits -- score normalized to 0 |
| 0 | Security-Policy | security policy file not detected |
| 0 | Signed-Releases | Project has not signed or included provenance with any releases. |
| 0 | Token-Permissions | detected GitHub workflow tokens with excessive permissions |
| 7 | Vulnerabilities | 3 existing vulnerabilities detected |
Direct dependencies 23
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| npm | lib0 | ^0.2.42 | tests-wasm/package.json |
| npm | ywasm | file:../ywasm/pkg | tests-wasm/package.json |
| npm | zlib | ^1.0.5 | tests-wasm/package.json |
| crates.io | yrs | 0.27.3 | yffi/Cargo.toml |
| crates.io | serde_json | 1.0 | yffi/Cargo.toml |
| crates.io | thiserror | 2 | yrs/Cargo.toml |
| crates.io | fastrand | 2 | yrs/Cargo.toml |
| crates.io | smallstr | 0.3 | yrs/Cargo.toml |
| crates.io | smallvec | 1.13 | yrs/Cargo.toml |
| crates.io | async-lock | 3.4 | yrs/Cargo.toml |
| crates.io | async-trait | 0.1 | yrs/Cargo.toml |
| crates.io | arc-swap | 1.7 | yrs/Cargo.toml |
| crates.io | serde | 1.0 | yrs/Cargo.toml |
| crates.io | serde_json | 1.0 | yrs/Cargo.toml |
| crates.io | dashmap | 6.0 | yrs/Cargo.toml |
| crates.io | yrs | 0.27.3 | ywasm/Cargo.toml |
| crates.io | wasm-bindgen | 0.2 | ywasm/Cargo.toml |
| crates.io | serde | 1.0 | ywasm/Cargo.toml |
| crates.io | serde-wasm-bindgen | 0.6 | ywasm/Cargo.toml |
| crates.io | base64_light | 0.1 | ywasm/Cargo.toml |
| crates.io | console_error_panic_hook | 0.1.7 | ywasm/Cargo.toml |
| crates.io | wee_alloc | 0.4.5 | ywasm/Cargo.toml |
| crates.io | js-sys | 0.3 | ywasm/Cargo.toml |
All dependencies not collected
The resolved dependency set could not be collected for this report: GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository
Raw JSON report machine-readable
{
"data": {
"repo": {
"topics": [
"yjs",
"crdt",
"rust"
],
"is_fork": false,
"size_kb": 16101,
"has_wiki": true,
"homepage": "https://docs.rs/yrs/",
"languages": {
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"C++": 383837,
"Rust": 1857401,
"CMake": 1392,
"JavaScript": 83314
},
"pushed_at": "2026-07-13T04:13:18Z",
"created_at": "2020-09-29T14:48:17Z",
"owner_type": "Organization",
"updated_at": "2026-07-17T06:15:19Z",
"description": "Rust port of Yjs",
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},
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},
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"health_percentage": 37,
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"latest_version_yanked": false,
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},
{
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"repository_url": "https://github.com/y-crdt/y-crdt/",
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"monthly_downloads": 205048,
"first_published_at": "2020-10-20T22:33:36.911869Z",
"latest_published_at": "2026-07-13T04:13:49.112017Z",
"latest_version_yanked": false,
"days_since_latest_publish": 5
},
{
"name": "ywasm",
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"license": "MIT",
"keywords": [
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"wasm",
"yrs"
],
"ecosystem": "crates",
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"is_deprecated": false,
"latest_version": "0.19.2",
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"monthly_downloads": 54,
"first_published_at": "2021-10-14T09:10:38.030285Z",
"latest_published_at": "2024-07-17T08:53:24.420762Z",
"latest_version_yanked": false,
"days_since_latest_publish": 730
}
]
},
"popularity": {
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"stars": 2119,
"watchers": 28,
"open_issues_and_prs": 110
},
"ai_readiness": {
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"example_dirs": [],
"has_llms_txt": false,
"has_dockerfile": false,
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"oversized_source_files": 12,
"agent_instruction_files": [],
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"dependencies": {
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"tests-wasm/package.json",
"yffi/Cargo.toml",
"yrs/Cargo.toml",
"ywasm/Cargo.toml"
],
"ecosystems": [
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"dependencies": [
{
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},
{
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},
{
"name": "zlib",
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},
{
"name": "yrs",
"manifest": "yffi/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "0.27.3"
},
{
"name": "serde_json",
"manifest": "yffi/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "1.0"
},
{
"name": "thiserror",
"manifest": "yrs/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "2"
},
{
"name": "fastrand",
"manifest": "yrs/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "2"
},
{
"name": "smallstr",
"manifest": "yrs/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "0.3"
},
{
"name": "smallvec",
"manifest": "yrs/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "1.13"
},
{
"name": "async-lock",
"manifest": "yrs/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "3.4"
},
{
"name": "async-trait",
"manifest": "yrs/Cargo.toml",
"ecosystem": "crates",
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{
"name": "arc-swap",
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"ecosystem": "crates",
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},
{
"name": "serde",
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"ecosystem": "crates",
"version_constraint": "1.0"
},
{
"name": "serde_json",
"manifest": "yrs/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "1.0"
},
{
"name": "dashmap",
"manifest": "yrs/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "6.0"
},
{
"name": "yrs",
"manifest": "ywasm/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "0.27.3"
},
{
"name": "wasm-bindgen",
"manifest": "ywasm/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "0.2"
},
{
"name": "serde",
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"ecosystem": "crates",
"version_constraint": "1.0"
},
{
"name": "serde-wasm-bindgen",
"manifest": "ywasm/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "0.6"
},
{
"name": "base64_light",
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"ecosystem": "crates",
"version_constraint": "0.1"
},
{
"name": "console_error_panic_hook",
"manifest": "ywasm/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "0.1.7"
},
{
"name": "wee_alloc",
"manifest": "ywasm/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "0.4.5"
},
{
"name": "js-sys",
"manifest": "ywasm/Cargo.toml",
"ecosystem": "crates",
"version_constraint": "0.3"
}
],
"all_dependencies": {
"error": "GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository",
"source": null,
"packages": [],
"collected": false,
"truncated": false,
"total_count": null,
"direct_count": null,
"indirect_count": null
}
},
"maintainership": {
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"merged_prs": 349,
"open_issues": 101,
"closed_ratio": 0.581,
"closed_issues": 140,
"closed_unmerged_prs": 40
},
"bus_factor": 1,
"top_contributors": [
{
"type": "User",
"login": "Horusiath",
"commits": 1160,
"avatar_url": "https://avatars.githubusercontent.com/u/679705?u=1045fdc27b9420a8101a5f573728b3032fd4b208&v=4"
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"description": "Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?"
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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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{
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{
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{
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{
"key": "sast",
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"status": "missed",
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{
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{
"key": "signed_releases",
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{
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"status": "missed",
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{
"key": "vulnerabilities",
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]
},
{
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"value": 100,
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"components": [
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"points": 100,
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],
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},
{
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"value": 41,
"weight": 0,
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{
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}
],
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},
"warnings": [
"Could not fetch npm package 'tests-wasm' from its registry",
"crates package 'yrs' points at a different repository (https://github.com/y-crdt/y-crdt/); excluded from ecosystem scoring",
"GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository"
],
"report_type": "repository",
"generated_at": "2026-07-18T07:10:08.835472Z",
"schema_version": "0.12.0",
"badge_url": "https://raw.githubusercontent.com/inspect-software/badges/main/v1/y/yjs/y-crdt.svg",
"full_name": "yjs/y-crdt",
"license_state": "custom",
"license_spdx": null
}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 v0.12.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics — crates.io.