Public recordExcellent
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-15 16:45 UTC
holochain / holochain-hdi
The Holochain HDI (integrity zome SDK) and the type crates it depends on.
holochain/holochain-hdi holds a health index of 83 out of 100, placing it in the Excellent band. It scores highest on Vitality (87/100) and lowest on Community & Adoption (45/100). It was last updated today. 2 contributors account for most of its recent work.
83
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.
83
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 70 is calibrated to 83 on the published index scale (record calibration 2026-08-02).
Ownership
HolochainOrganization
609 followers269 public repossince Jun 2017
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 | hdi | 0.8.0 | 7,113 | 241 | 1 day ago | integrityholochainholocryptography |
| crates.io | fixt | 0.7.0 | 5,580 | 105 | 1 day ago | testfixtureholochainholo |
| crates.io | holo_hash | 0.7.0 | 10,216 | 216 | 1 day ago | hashblake2bblakeholochainholocryptography |
| crates.io | holochain_timestamp | 0.7.0 | 4,747 | 35 | 1 day ago | networkingp2pdhtholochaindate-and-time |
| crates.io | hdk_derive | 0.7.0 | 7,984 | 266 | 1 day ago | holochainholohdkcryptography |
| crates.io | holochain_util | 0.7.0 | 8,001 | 99 | 1 day ago | — |
| crates.io | holochain_integrity_types | 0.7.0 | 9,312 | 233 | 1 day ago | — |
| crates.io | holochain_secure_primitive | 0.7.0 | 6,239 | 50 | 1 day ago | — |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
87
Development activity
78Good
How it's scored
| 36/36 | Push recency — last push 0 days ago |
| 23.5/36 | Commit cadence — 34/52 weeks with commits |
| 18/18 | Commit volume — 110 commits in the last year |
| 0/10 | OpenSSF Scorecard: Maintained — project was created within the last 90 days. Please review its contents carefully |
Inputs used
| commits_last_year | 110 |
| human_commit_share | 0.93 |
| days_since_last_push | 0 |
| active_weeks_last_year | 34 |
Release discipline
100Exceptional
How it's scored
| 27/27 | Ships releases — 4 releases published |
| 36/36 | Release recency — latest release 1 days ago |
| 27/27 | Release cadence — a release every ~2 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 4 |
| latest_release_tag | v0.9.0-dev.7 |
| releases_from_tags | no |
| days_since_latest_release | 1 |
| mean_days_between_releases | 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?
45
Popularity & adoption
1Critical
How it's scored
| 0/60 | Stars — 0 stars |
| 0/25 | Forks — 0 forks |
| 0/15 | Watchers — 0 watchers |
Inputs used
| forks | 0 |
| stars | 0 |
| watchers | 0 |
| 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 |
| readme_badges | 0 |
| has_contributing | yes |
| has_issue_template | no |
| has_code_of_conduct | no |
| readme_badge_services | — |
| has_pull_request_template | no |
Ecosystem adoption (downloads)
80Excellent
How it's scored
| 63.6/80 | Monthly downloads — 59,192 downloads/month across crates |
| 0/20 | Registry dependents — not reported by this ecosystem |
Inputs used
| packages | hdi, fixt, holo_hash, holochain_timestamp, hdk_derive, holochain_util, holochain_integrity_types, holochain_secure_primitive |
| dependents | — |
| ecosystems | crates |
| total_downloads | 2,573,188 |
| monthly_downloads | 59,192 |
| 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?
79
Maintainer resilience (bus factor)
64Moderate
How it's scored
| 25.2/54 | Bus factor — 2 contributor(s) cover half of all commits |
| 15.3/22.5 | Commit distribution — top contributor authored 32% of commits |
| 13.5/13.5 | Contributor breadth — 29 contributors |
| 10/10 | OpenSSF Scorecard: Contributors — project has 14 contributing companies or organizations |
Inputs used
| bus_factor | 2 |
| contributors_sampled | 29 |
| top_contributor_share | 0.32 |
Issue & PR responsiveness
84Excellent
How it's scored
| 0/42 | Issue resolution — no issues or no data |
| 30/30 | PR acceptance — 17/17 decided PRs merged |
| 13/13 | Newcomer PR acceptance — 10/10 first-time contributors' PRs merged in 30d |
| 6/15 | OpenSSF Scorecard: Code-Review — Found 10/22 approved changesets -- score normalized to 4 |
Inputs used
| merged_prs | 17 |
| open_issues | 0 |
| closed_issues | 0 |
| prs_merged_7d | 6 |
| prs_decided_7d | 6 |
| prs_merged_30d | 10 |
| prs_decided_30d | 10 |
| issue_closed_ratio | — |
| closed_unmerged_prs | 0 |
| first_time_authors_30d | 3 |
| first_time_prs_merged_30d | 10 |
| first_time_prs_decided_30d | 10 |
Excluded from scoring (no data or not applicable): Issue resolution. Remaining weights renormalized.
Ownership & stewardship
75Good
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain |
| 20/25 | Owner reach — 609 followers of holochain |
| 25/25 | Track record — 269 public repos, account ~9 yr old |
Inputs used
| followers | 609 |
| owner_type | Organization |
| is_verified | no |
| owner_login | holochain |
| public_repos | 269 |
| account_age_days | 3,377 |
Package maintenance
100Exceptional
How it's scored
| 25/25 | Published & resolvable — 8 package(s) on crates |
| 35/35 | Publish recency — latest publish 1 days ago |
| 20/20 | Version history — 266 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | hdi, fixt, holo_hash, holochain_timestamp, hdk_derive, holochain_util, holochain_integrity_types, holochain_secure_primitive |
| ecosystems | crates |
| any_deprecated | no |
| min_days_since_publish | 1 |
Engineering Quality
Are baseline engineering and documentation practices in place?
72
Engineering practices
84Excellent
How it's scored
| 24/24 | CI workflows — 3 workflow(s) |
| 24/24 | Tests present |
| 16/16 | Linter config — Cargo.toml ([workspace.lints]), crates/fixt/Cargo.toml ([lints]), crates/hdi/Cargo.toml ([lints]), crates/hdk_derive/Cargo.toml ([lints]), crates/holo_hash/Cargo.toml ([lints]), crates/holochain_integrity_types/Cargo.toml ([lints]), crates/holochain_secure_primitive/Cargo.toml ([lints]), crates/holochain_util/Cargo.toml ([lints]), crates/timestamp/Cargo.toml ([lints]) |
| 0/9.6 | Pre-commit hooks |
| 0/6.4 | .editorconfig |
| 20/20 | OpenSSF Scorecard: CI-Tests — 17 out of 17 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 | yes |
| has_precommit_config | no |
Documentation
55Moderate
How it's scored
| 30/30 | README |
| 0/25 | Documentation directory |
| 15/15 | Documentation / homepage site — https://docs.rs/hdi |
| 10/10 | Repository description |
| 0/10 | Topics |
| 0/10 | Wiki |
Inputs used
| topics | — |
| has_wiki | no |
| homepage | — |
| docs_site | https://docs.rs/hdi |
| 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?
59
Security posture
59Moderate
How it's scored
| 7.5/7.5 | Binary-Artifacts — no binaries found in the repo |
| 0.8/7.5 | Branch-Protection — branch protection is not maximal on development and all release branches |
| 2.5/2.5 | CI-Tests — 17 out of 17 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 |
| 3/7.5 | Code-Review — Found 10/22 approved changesets -- score normalized to 4 |
| 2.5/2.5 | Contributors — project has 14 contributing companies or organizations |
| 10/10 | Dangerous-Workflow — no dangerous workflow patterns detected |
| 7.5/7.5 | Dependency-Update-Tool — update tool detected |
| 0/5 | Fuzzing — project is not fuzzed |
| 2.5/2.5 | License — license file detected |
| 0/7.5 | Maintained — project was created within the last 90 days. Please review its contents carefully |
| 0/5 | Packaging — no data |
| 5/5 | Pinned-Dependencies — all dependencies are pinned |
| 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 |
| 6/7.5 | Vulnerabilities — 2 existing vulnerabilities detected |
Inputs used
| source | openssf_scorecard |
| checks_evaluated | 16 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 2 |
| scorecard_aggregate | 5.9 |
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.
72
Agent context & guidance
40Weak
How it's scored
| 0/45 | Agent instructions — no CLAUDE.md / AGENTS.md / editor rules |
| 0/15 | Machine-readable docs (llms.txt) |
| 40/40 | Legible commit history — 93 of 93 human commits state their intent (structured subject or explanatory body) |
Inputs used
| has_llms_txt | no |
| llms_txt_url | — |
| legible_history_share | 1 |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
Verify loop (build / test / typecheck)
85Excellent
How it's scored
| 12.6/18 | One-command bootstrap — Cargo.toml, crates/fixt/Cargo.toml, crates/fixt/test/Cargo.toml (toolchain convention, no task runner) |
| 22/22 | Automated tests |
| 11/11 | Lint / format config — Cargo.toml ([workspace.lints]), crates/fixt/Cargo.toml ([lints]), crates/hdi/Cargo.toml ([lints]), crates/hdk_derive/Cargo.toml ([lints]), crates/holo_hash/Cargo.toml ([lints]), crates/holochain_integrity_types/Cargo.toml ([lints]), crates/holochain_secure_primitive/Cargo.toml ([lints]), crates/holochain_util/Cargo.toml ([lints]), crates/timestamp/Cargo.toml ([lints]) |
| 11/11 | Static type checking — Rust (statically typed) |
| 10/10 | Reproducible environment — lockfile |
| 0/10 | Demonstrated agent practice — no agent-authored commits among the last 100 |
| 8/8 | Automated maintenance — 7 of the last 100 commits are automated dependency updates |
| 10/10 | OpenSSF Scorecard: Pinned-Dependencies — all dependencies are pinned |
Inputs used
| has_nix | no |
| has_tests | yes |
| lockfiles | Cargo.lock |
| has_dockerfile | no |
| typed_language | yes |
| bootstrap_files | — |
| has_devcontainer | no |
| has_linter_config | yes |
| typecheck_configs | — |
| agent_commit_share | 0 |
| toolchain_manifests | Cargo.toml, crates/fixt/Cargo.toml, crates/fixt/test/Cargo.toml, crates/hdi/Cargo.toml, crates/hdk_derive/Cargo.toml, crates/holo_hash/Cargo.toml, crates/holochain_integrity_types/Cargo.toml, crates/holochain_secure_primitive/Cargo.toml, crates/holochain_util/Cargo.toml, crates/timestamp/Cargo.toml |
| dependency_bot_commit_share | 0.07 |
Code legibility for models
100Exceptional
How it's scored
| 45/45 | Type-checkable code — Rust (statically typed) |
| 55/55 | Manageable file sizes — 0/135 source files over 60KB |
Inputs used
| primary_language | Rust |
| largest_source_bytes | 44,340 |
| source_files_sampled | 135 |
| oversized_source_files | 0 |
Key facts
0GitHub stars
29contributors
110commits, last 12 months
0days since last push
4releases
2bus factor
0open issues
crates.iopackage ecosystems
Data collection warnings
- GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository
More detail
OpenSSF Scorecard 5.9 / 10
5.9aggregate
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).
| 10 | Binary-Artifacts | no binaries found in the repo |
| 1 | Branch-Protection | branch protection is not maximal on development and all release branches |
| 10 | CI-Tests | 17 out of 17 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 |
| 4 | Code-Review | Found 10/22 approved changesets -- score normalized to 4 |
| 10 | Contributors | project has 14 contributing companies or organizations |
| 10 | Dangerous-Workflow | no dangerous workflow patterns detected |
| 10 | Dependency-Update-Tool | update tool detected |
| 0 | Fuzzing | project is not fuzzed |
| 10 | License | license file detected |
| 0 | Maintained | project was created within the last 90 days. Please review its contents carefully |
| n/a | Packaging | packaging workflow not detected |
| 10 | Pinned-Dependencies | all dependencies are pinned |
| 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 |
| 8 | Vulnerabilities | 2 existing vulnerabilities detected |
Direct dependencies 79
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| crates.io | holochain_serialized_bytes | =0.0.57 | crates/fixt/Cargo.toml |
| crates.io | lazy_static | 1.4 | crates/fixt/Cargo.toml |
| crates.io | parking_lot | 0.12 | crates/fixt/Cargo.toml |
| crates.io | paste | 1.0.12 | crates/fixt/Cargo.toml |
| crates.io | rand | 0.10 | crates/fixt/Cargo.toml |
| crates.io | serde | 1.0 | crates/fixt/Cargo.toml |
| crates.io | strum | 0.27 | crates/fixt/Cargo.toml |
| crates.io | strum_macros | 0.27 | crates/fixt/Cargo.toml |
| crates.io | hdk_derive | — | crates/hdi/Cargo.toml |
| crates.io | holo_hash | — | crates/hdi/Cargo.toml |
| crates.io | holochain_wasmer_guest | =0.0.103 | crates/hdi/Cargo.toml |
| crates.io | holochain_serialized_bytes | =0.0.57 | crates/hdi/Cargo.toml |
| crates.io | holochain_serialized_bytes_derive | =0.0.57 | crates/hdi/Cargo.toml |
| crates.io | holochain_integrity_types | — | crates/hdi/Cargo.toml |
| crates.io | paste | 1.0 | crates/hdi/Cargo.toml |
| crates.io | serde | 1.0 | crates/hdi/Cargo.toml |
| crates.io | serde_bytes | 0.11 | crates/hdi/Cargo.toml |
| crates.io | tracing | 0.1 | crates/hdi/Cargo.toml |
| crates.io | tracing-core | 0.1 | crates/hdi/Cargo.toml |
| crates.io | mockall | 0.15 | crates/hdi/Cargo.toml |
| crates.io | syn | — | crates/hdk_derive/Cargo.toml |
| crates.io | quote | 1 | crates/hdk_derive/Cargo.toml |
| crates.io | proc-macro2 | 1 | crates/hdk_derive/Cargo.toml |
| crates.io | paste | 1.0 | crates/hdk_derive/Cargo.toml |
| crates.io | darling | 0.24.1 | crates/hdk_derive/Cargo.toml |
| crates.io | heck | 0.5 | crates/hdk_derive/Cargo.toml |
| crates.io | holochain_integrity_types | — | crates/hdk_derive/Cargo.toml |
| crates.io | proc-macro-error | 1.0.4 | crates/hdk_derive/Cargo.toml |
| crates.io | thiserror | 2.0 | crates/holo_hash/Cargo.toml |
| crates.io | base64 | 0.23 | crates/holo_hash/Cargo.toml |
| crates.io | blake2b_simd | 1.0 | crates/holo_hash/Cargo.toml |
| crates.io | bytes | 1 | crates/holo_hash/Cargo.toml |
| crates.io | derive_more | 2.0 | crates/holo_hash/Cargo.toml |
| crates.io | fixt | — | crates/holo_hash/Cargo.toml |
| crates.io | futures | 0.3 | crates/holo_hash/Cargo.toml |
| crates.io | holochain_serialized_bytes | =0.0.57 | crates/holo_hash/Cargo.toml |
| crates.io | holochain_util | — | crates/holo_hash/Cargo.toml |
| crates.io | kitsune2_api | 0.6.0-dev.1 | crates/holo_hash/Cargo.toml |
| crates.io | must_future | 0.1 | crates/holo_hash/Cargo.toml |
| crates.io | proptest | 1 | crates/holo_hash/Cargo.toml |
| crates.io | proptest-derive | 0 | crates/holo_hash/Cargo.toml |
| crates.io | rand | 0.10 | crates/holo_hash/Cargo.toml |
| crates.io | serde | 1 | crates/holo_hash/Cargo.toml |
| crates.io | serde_bytes | 0.11 | crates/holo_hash/Cargo.toml |
| crates.io | sha2 | 0.11 | crates/holo_hash/Cargo.toml |
| crates.io | holochain_wasmer_common | =0.0.103 | crates/holo_hash/Cargo.toml |
| crates.io | schemars | — | crates/holo_hash/Cargo.toml |
| crates.io | ts-rs | 12.0 | crates/holo_hash/Cargo.toml |
| crates.io | holo_hash | — | crates/holochain_integrity_types/Cargo.toml |
| crates.io | holochain_serialized_bytes | =0.0.57 | crates/holochain_integrity_types/Cargo.toml |
| crates.io | holochain_util | — | crates/holochain_integrity_types/Cargo.toml |
| crates.io | holochain_secure_primitive | — | crates/holochain_integrity_types/Cargo.toml |
| crates.io | serde | 1.0 | crates/holochain_integrity_types/Cargo.toml |
| crates.io | serde_bytes | 0.11 | crates/holochain_integrity_types/Cargo.toml |
| crates.io | schemars | — | crates/holochain_integrity_types/Cargo.toml |
| crates.io | holochain_timestamp | — | crates/holochain_integrity_types/Cargo.toml |
| crates.io | subtle | 2 | crates/holochain_integrity_types/Cargo.toml |
| crates.io | derive_builder | 0.20 | crates/holochain_integrity_types/Cargo.toml |
| crates.io | proptest | 1 | crates/holochain_integrity_types/Cargo.toml |
| crates.io | proptest-derive | 0 | crates/holochain_integrity_types/Cargo.toml |
| crates.io | subtle-encoding | 0.5 | crates/holochain_integrity_types/Cargo.toml |
| crates.io | tracing | 0.1 | crates/holochain_integrity_types/Cargo.toml |
| crates.io | ts-rs | 12.0 | crates/holochain_integrity_types/Cargo.toml |
| crates.io | serde | 1.0 | crates/holochain_secure_primitive/Cargo.toml |
| crates.io | paste | 1.0 | crates/holochain_secure_primitive/Cargo.toml |
| crates.io | subtle | 2 | crates/holochain_secure_primitive/Cargo.toml |
| crates.io | colored | 3.0 | crates/holochain_util/Cargo.toml |
| crates.io | once_cell | 1.13.0 | crates/holochain_util/Cargo.toml |
| crates.io | tokio | 1.27 | crates/holochain_util/Cargo.toml |
| crates.io | futures | 0.3 | crates/holochain_util/Cargo.toml |
| crates.io | backtrace | 0.3 | crates/holochain_util/Cargo.toml |
| crates.io | cfg-if | 1.0 | crates/holochain_util/Cargo.toml |
| crates.io | dunce | 1.0 | crates/holochain_util/Cargo.toml |
| crates.io | rpassword | 7.0.0 | crates/holochain_util/Cargo.toml |
| crates.io | sodoken | 0.1.0 | crates/holochain_util/Cargo.toml |
| crates.io | schemars | — | crates/holochain_util/Cargo.toml |
| crates.io | serde | 1.0 | crates/timestamp/Cargo.toml |
| crates.io | ts-rs | 12.0 | crates/timestamp/Cargo.toml |
| crates.io | chrono | 0.4.22 | crates/timestamp/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
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 — crates.io.