Public recordAt risk
Software health reportschema 0.14.0 · metrics 1.13.0 · 2026-07-19 04:37 UTC
serde-rs / serde
Serialization framework for Rust
serde-rs/serde holds a health index of 34 out of 100, placing it in the At risk band. It scores highest on Community & Adoption (88/100) and lowest on Security (28/100). It was last updated today. A single contributor accounts for most of its recent work.
34
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.
34
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.
High-Risk Jurisdiction Policy applies a 50% multiplier to weighted overall health and gives it an At risk ceiling of 49.
Ownership
serde-rsOrganization
316 followers8 public repossince Apr 2015
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 | serde | 1.0.229 | 78,955,528 | 316 | 0 days ago | no-stdserdeserializationencoding |
| crates.io | serde_core | 1.0.229 | 62,791,268 | 10 | 0 days ago | no-stdserdeserializationencoding |
| crates.io | serde_derive | 1.0.229 | 76,730,705 | 271 | 0 days ago | deriveno-stdserdeserialization |
| crates.io | serde_derive_internals | 0.29.1 | 14,666,808 | 23 | 794 days ago | serializationserde |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
85
Development activity
75Good
How it's scored
| 36/36 | Push recency — last push 0 days ago |
| 13.8/36 | Commit cadence — 20/52 weeks with commits |
| 18/18 | Commit volume — 149 commits in the last year |
| 7/10 | OpenSSF Scorecard: Maintained — 8 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 7 |
Inputs used
| commits_last_year | 149 |
| human_commit_share | — |
| days_since_last_push | 0 |
| active_weeks_last_year | 20 |
Release discipline
100Excellent
How it's scored
| 27/27 | Ships releases — 100 releases published |
| 36/36 | Release recency — latest release 0 days ago |
| 27/27 | Release cadence — a release every ~34.2 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 100 |
| latest_release_tag | v1.0.229 |
| releases_from_tags | no |
| days_since_latest_release | 0 |
| mean_days_between_releases | 34.2 |
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?
88
Popularity & adoption
95Excellent
How it's scored
| 60/60 | Stars — 10,712 stars |
| 24.7/25 | Forks — 922 forks |
| 10.3/15 | Watchers — 72 watchers |
Inputs used
| forks | 922 |
| stars | 10,712 |
| watchers | 72 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
70Good
How it's scored
| 22.5/22.5 | README |
| 22.5/22.5 | License — recognized license (Apache-2.0) |
| 18/18 | 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 | yes |
| has_issue_template | no |
| has_code_of_conduct | no |
| has_pull_request_template | no |
Ecosystem adoption (downloads)
100Excellent
How it's scored
| 80/80 | Monthly downloads — 233,144,309 downloads/month across crates |
| 0/20 | Registry dependents — not reported by this ecosystem |
Inputs used
| packages | serde, serde_core, serde_derive, serde_derive_internals |
| dependents | — |
| ecosystems | crates |
| total_downloads | 2,830,879,456 |
| monthly_downloads | 233,144,309 |
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?
67
Maintainer resilience (bus factor)
40At risk
How it's scored
| 9/54 | Bus factor — 1 contributor(s) cover half of all commits |
| 8/22.5 | Commit distribution — top contributor authored 64% of commits |
| 13.5/13.5 | Contributor breadth — 100 contributors |
| 10/10 | OpenSSF Scorecard: Contributors — project has 48 contributing companies or organizations |
Inputs used
| bus_factor | 1 |
| contributors_sampled | 100 |
| top_contributor_share | 0.643 |
How it's scored
| 39.2/46.8 | Issue resolution — 84% of issues closed |
| 29.8/38.3 | PR acceptance — 791/1,014 decided PRs merged |
| 3/15 | OpenSSF Scorecard: Code-Review — Found 6/22 approved changesets -- score normalized to 2 |
Inputs used
| merged_prs | 791 |
| open_issues | 315 |
| closed_issues | 1,629 |
| issue_closed_ratio | 0.838 |
| closed_unmerged_prs | 223 |
Ownership & stewardship
67Moderate
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain |
| 18/25 | Owner reach — 316 followers of serde-rs |
| 18.9/25 | Track record — 8 public repos, account ~11 yr old |
Inputs used
| followers | 316 |
| owner_type | Organization |
| is_verified | — |
| owner_login | serde-rs |
| public_repos | 8 |
| account_age_days | 4,112 |
Package maintenance
100Excellent
How it's scored
| 25/25 | Published & resolvable — 4 package(s) on crates |
| 35/35 | Publish recency — latest publish 0 days ago |
| 20/20 | Version history — 316 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | serde, serde_core, serde_derive, serde_derive_internals |
| ecosystems | crates |
| any_deprecated | no |
| min_days_since_publish | 0 |
Engineering Quality
Are baseline engineering and documentation practices in place?
67
Engineering practices
68Moderate
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 |
| 20/20 | OpenSSF Scorecard: CI-Tests — 7 out of 7 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
65Moderate
How it's scored
| 30/30 | README |
| 0/25 | Documentation directory |
| 15/15 | Documentation / homepage site — https://serde.rs/ |
| 10/10 | Repository description |
| 10/10 | Topics — 4 topics |
| 0/10 | Wiki |
Inputs used
| topics | rust, serde, derive, no-std |
| has_wiki | no |
| homepage | https://serde.rs/ |
| 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?
28
Security posture
28Critical
Jurisdiction risk alert
High-risk jurisdiction exposure detected
1 top contributor profilesRussiaSecurity and overall rating: At risk ceiling
Based on self-published public profile locations. This governance signal does not determine nationality, citizenship, intent, sanctions status, or individual trustworthiness.
How jurisdiction exposure is assessedHow 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 — 7 out of 7 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 6/22 approved changesets -- score normalized to 2 |
| 2.5/2.5 | Contributors — project has 48 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 |
| 2.5/2.5 | License — license file detected |
| 5.2/7.5 | Maintained — 8 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 7 |
| 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 — no data |
| 7.5/7.5 | Token-Permissions — GitHub workflow tokens follow principle of least privilege |
| 7.5/7.5 | Vulnerabilities — 0 existing vulnerabilities detected |
Inputs used
| source | openssf_scorecard |
| checks_evaluated | 15 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 3 |
| scorecard_aggregate | 5.5 |
| high_risk_jurisdiction_cap | 49 |
| high_risk_jurisdiction_multiplier | 50 |
| security_posture_after_multiplier | 28 |
| security_posture_before_jurisdiction | 55 |
Excluded from scoring (no data or not applicable): branch_protection, packaging, signed_releases. Remaining weights renormalized. High-Risk Jurisdiction Policy applies a 50% multiplier and gives Security posture an At risk ceiling of 49.
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.
36
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.
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) |
| 0/10 | Reproducible environment |
| 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 | — |
| 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
98Excellent
How it's scored
| 45/45 | Type-checkable code — Rust (statically typed) |
| 53.4/55 | Manageable file sizes — 6/208 source files over 60KB |
Inputs used
| primary_language | Rust |
| largest_source_bytes | 110,746 |
| source_files_sampled | 208 |
| oversized_source_files | 6 |
Key facts
10,712GitHub stars
100contributors
149commits, last 12 months
0days since last push
100releases
1bus factor
315open issues
crates.iopackage ecosystems
Data collection warnings
- Could not fetch crates package 'serde_test_suite' from its registry
More detail
OpenSSF Scorecard 5.5 / 10
5.5aggregate
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 | 7 out of 7 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 6/22 approved changesets -- score normalized to 2 |
| 10 | Contributors | project has 48 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 |
| 10 | License | license file detected |
| 7 | Maintained | 8 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 7 |
| 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 |
| n/a | Signed-Releases | no releases found |
| 10 | Token-Permissions | GitHub workflow tokens follow principle of least privilege |
| 10 | Vulnerabilities | 0 existing vulnerabilities detected |
Direct dependencies 9
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| crates.io | serde_core | =1.0.229 | serde/Cargo.toml |
| crates.io | serde_derive | 1 | serde/Cargo.toml |
| crates.io | proc-macro2 | — | serde_derive/Cargo.toml |
| crates.io | quote | — | serde_derive/Cargo.toml |
| crates.io | syn | — | serde_derive/Cargo.toml |
| crates.io | proc-macro2 | — | serde_derive_internals/Cargo.toml |
| crates.io | quote | — | serde_derive_internals/Cargo.toml |
| crates.io | syn | — | serde_derive_internals/Cargo.toml |
| crates.io | serde | — | test_suite/Cargo.toml |
All dependencies 10
Full resolved dependency set from the GitHub dependency graph: 4 direct and 6 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|---|---|---|
| crates.io | serde | — | direct |
| crates.io | serde_core | 1.0.228 | direct |
| crates.io | serde_derive | — | direct |
| crates.io | serde_derive | 1.0.228 | direct |
| crates.io | automod | — | indirect |
| crates.io | foldhash | — | indirect |
| crates.io | libc | — | indirect |
| crates.io | rustversion | — | indirect |
| crates.io | serde_test | — | indirect |
| crates.io | trybuild | — | indirect |
Raw JSON report machine-readable
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{
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{
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{
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{
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"login": "nox",
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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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"documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#dangerous-workflow"
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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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{
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{
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{
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},
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"weight": 0.16,
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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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},
{
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},
{
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{
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}
]
},
{
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"notes": [
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"components": [
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],
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}
],
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},
{
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"weight": 0,
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{
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},
{
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},
{
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],
"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": [
"Could not fetch crates package 'serde_test_suite' from its registry"
],
"report_type": "repository",
"generated_at": "2026-07-19T04:37:00.884582Z",
"schema_version": "0.14.0",
"badge_url": "https://raw.githubusercontent.com/inspect-software/badges/main/v1/s/serde-rs/serde.svg",
"full_name": "serde-rs/serde",
"license_state": "standard",
"license_spdx": "Apache-2.0"
}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 v0.14.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics — crates.io.