Public recordModerate
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-10-21 03:14 UTC
A3S-Lab / Flow
AI Native Workflow Engine
A3S-Lab/Flow holds a health index of 62 out of 100, placing it in the Moderate band. It scores highest on Vitality (78/100) and lowest on Community & Adoption (24/100). It was last updated 28 days ago. A single contributor accounts for most of its recent work.
62
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.
62
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 58 is calibrated to 62 on the published index scale (record calibration 2026-08-02).
Ownership
A3S LabOrganization
41 followers79 public repossince Jan 2026
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 | a3s-flow | 1.1.0 | 2,975 | 41 | 56 days ago | asyncsdkworkflowevent-sourcingdurableasynchronousdevelopment-tools |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
78
Development activity
64Moderate
How it's scored
| 28.8/36 | Push recency — last push 28 days ago |
| 6.9/36 | Commit cadence — 10/52 weeks with commits |
| 18/18 | Commit volume — 491 commits in the last year |
| 10/10 | OpenSSF Scorecard: Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 |
Inputs used
| commits_last_year | 491 |
| human_commit_share | 1 |
| days_since_last_push | 28 |
| active_weeks_last_year | 10 |
Release discipline
100Exceptional
How it's scored
| 27/27 | Ships releases — 33 releases published |
| 36/36 | Release recency — latest release 56 days ago |
| 27/27 | Release cadence — a release every ~1.9 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 33 |
| latest_release_tag | v1.1.0 |
| releases_from_tags | no |
| days_since_latest_release | 56 |
| mean_days_between_releases | 1.9 |
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?
24
Popularity & adoption
1Critical
How it's scored
| 0/60 | Stars — 1 stars |
| 0/25 | Forks — 1 forks |
| 0/15 | Watchers — 0 watchers |
Inputs used
| forks | 1 |
| stars | 1 |
| watchers | 0 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
25At Risk
How it's scored
| 22.5/22.5 | README |
| 0/22.5 | License — no license file detected |
| 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 | no |
| readme_badges | 4 |
| has_contributing | no |
| has_issue_template | no |
| has_code_of_conduct | no |
| readme_badge_services | github.com, shields.io |
| has_pull_request_template | no |
Ecosystem adoption (downloads)
58Moderate
How it's scored
| 46.3/80 | Monthly downloads — 2,975 downloads/month across crates |
| 0/20 | Registry dependents — not reported by this ecosystem |
Inputs used
| packages | a3s-flow |
| dependents | — |
| ecosystems | crates |
| total_downloads | 10,233 |
| monthly_downloads | 2,975 |
| 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?
58
Maintainer resilience (bus factor)
12Critical
How it's scored
| 9/54 | Bus factor — 1 contributor(s) cover half of all commits |
| 0.8/22.5 | Commit distribution — top contributor authored 96% of commits |
| 2.7/13.5 | Contributor breadth — 2 contributors |
| 0/10 | OpenSSF Scorecard: Contributors — project has 0 contributing companies or organizations -- score normalized to 0 |
Inputs used
| bus_factor | 1 |
| contributors_sampled | 2 |
| top_contributor_share | 0.964 |
Issue & PR responsiveness
82Excellent
How it's scored
| 38.5/42 | Issue resolution — 92% of issues closed |
| 28.8/30 | PR acceptance — 142/148 decided PRs merged |
| 13/13 | Newcomer PR acceptance — 1/1 first-time contributors' PRs merged in 30d |
| 1.5/15 | OpenSSF Scorecard: Code-Review — Found 1/10 approved changesets -- score normalized to 1 |
Inputs used
| merged_prs | 142 |
| open_issues | 5 |
| closed_issues | 55 |
| prs_merged_7d | 0 |
| prs_decided_7d | 0 |
| prs_merged_30d | 1 |
| prs_decided_30d | 1 |
| issue_closed_ratio | 0.917 |
| closed_unmerged_prs | 6 |
| first_time_authors_30d | 1 |
| first_time_prs_merged_30d | 1 |
| first_time_prs_decided_30d | 1 |
Ownership & stewardship
56Moderate
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain |
| 11.7/25 | Owner reach — 41 followers of A3S-Lab |
| 14.5/25 | Track record — 79 public repos, account ~0 yr old |
Inputs used
| followers | 41 |
| owner_type | Organization |
| is_verified | no |
| owner_login | A3S-Lab |
| public_repos | 79 |
| account_age_days | 279 |
Package maintenance
100Exceptional
How it's scored
| 25/25 | Published & resolvable — 1 package(s) on crates |
| 35/35 | Publish recency — latest publish 56 days ago |
| 20/20 | Version history — 41 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | a3s-flow |
| ecosystems | crates |
| any_deprecated | no |
| min_days_since_publish | 56 |
Engineering Quality
Are baseline engineering and documentation practices in place?
77
Engineering practices
68Good
How it's scored
| 24/24 | CI workflows — 4 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 — 9 out of 9 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
90Excellent
How it's scored
| 30/30 | README |
| 25/25 | Documentation directory |
| 15/15 | Documentation / homepage site — https://a3s-lab.github.io/Flow/ |
| 10/10 | Repository description |
| 0/10 | Topics |
| 10/10 | Wiki |
Inputs used
| topics | — |
| has_wiki | yes |
| homepage | https://a3s-lab.github.io/Flow/ |
| docs_site | https://a3s-lab.github.io/Flow/ |
| has_readme | yes |
| has_docs_dir | yes |
| has_description | yes |
Security
Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?
40
Security posture
40Weak
How it's scored
| 6.8/7.5 | Binary-Artifacts — binaries present in source code |
| 0/7.5 | Branch-Protection — branch protection not enabled on development/release branches |
| 2.5/2.5 | CI-Tests — 9 out of 9 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 |
| 0.8/7.5 | Code-Review — Found 1/10 approved changesets -- score normalized to 1 |
| 0/2.5 | Contributors — project has 0 contributing companies or organizations -- score normalized to 0 |
| 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 |
| 0/2.5 | License — license file not detected |
| 7.5/7.5 | Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 |
| 5/5 | Packaging — packaging workflow detected |
| 1.5/5 | Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 3 |
| 0/5 | SAST — SAST tool is not run on all commits -- score normalized to 0 |
| 5/5 | Security-Policy — security policy file detected |
| 0/7.5 | Signed-Releases — no data |
| 0/7.5 | Token-Permissions — detected GitHub workflow tokens with excessive permissions |
| 0/7.5 | Vulnerabilities — 15 existing vulnerabilities detected |
Inputs used
| source | openssf_scorecard |
| checks_evaluated | 17 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 1 |
| scorecard_aggregate | 4 |
Excluded from scoring (no data or not applicable): 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.
76
Agent context & guidance
55Moderate
How it's scored
| 0/45 | Agent instructions — no CLAUDE.md / AGENTS.md / editor rules |
| 15/15 | Machine-readable docs (llms.txt) — llms.txt served by the project website (https://a3s-lab.github.io/Flow/llms.txt) |
| 40/40 | Legible commit history — 100 of 100 human commits state their intent (structured subject or explanatory body) |
Inputs used
| has_llms_txt | yes |
| llms_txt_url | https://a3s-lab.github.io/Flow/llms.txt |
| legible_history_share | 1 |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
How it's scored
| 18/18 | One-command bootstrap — justfile |
| 22/22 | Automated tests |
| 0/11 | Lint / format config |
| 11/11 | Static type checking — packages/ui/tsconfig.json, website/tsconfig.json |
| 10/10 | Reproducible environment — lockfile |
| 10/10 | Demonstrated agent practice — 60 of the last 100 commits agent-authored or agent-credited |
| 0/8 | Automated maintenance — no automated dependency updates observed |
| 3/10 | OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 3 |
Inputs used
| has_nix | no |
| has_tests | yes |
| lockfiles | Cargo.lock, package-lock.json |
| has_dockerfile | no |
| typed_language | yes |
| bootstrap_files | justfile |
| has_devcontainer | no |
| has_linter_config | no |
| typecheck_configs | packages/ui/tsconfig.json, website/tsconfig.json |
| agent_commit_share | 0.6 |
| toolchain_manifests | Cargo.toml, website/graph-kernel/Cargo.toml |
| dependency_bot_commit_share | 0 |
Code legibility for models
100Exceptional
How it's scored
| 45/45 | Type-checkable code — Rust (statically typed) |
| 54.7/55 | Manageable file sizes — 2/380 source files over 60KB |
Inputs used
| primary_language | Rust |
| largest_source_bytes | 67,805 |
| source_files_sampled | 380 |
| oversized_source_files | 2 |
Machine-readable interfaces
100Exceptional
How it's scored
| 0/40 | API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software |
| 0/20 | MCP server — not applicable to this kind of software |
| 40/40 | Runnable examples — examples |
Inputs used
| example_dirs | examples |
| has_mcp_signal | no |
| api_schema_files | — |
| interfaces_expected_of | — |
Excluded from scoring (no data or not applicable): API schema (OpenAPI/GraphQL/proto), MCP server. Remaining weights renormalized.
Key facts
1GitHub stars
2contributors
491commits, last 12 months
28days since last push
33releases
1bus factor
5open issues
crates.io, npmpackage ecosystems
Data collection warnings
- Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
- GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository
More detail
OpenSSF Scorecard 4.0 / 10
4.0aggregate
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).
| 9 | Binary-Artifacts | binaries present in source code |
| 0 | Branch-Protection | branch protection not enabled on development/release branches |
| 10 | CI-Tests | 9 out of 9 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 |
| 1 | Code-Review | Found 1/10 approved changesets -- score normalized to 1 |
| 0 | Contributors | project has 0 contributing companies or organizations -- score normalized to 0 |
| 10 | Dangerous-Workflow | no dangerous workflow patterns detected |
| 0 | Dependency-Update-Tool | no update tool detected |
| 0 | Fuzzing | project is not fuzzed |
| 0 | License | license file not detected |
| 10 | Maintained | 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 |
| 10 | Packaging | packaging workflow detected |
| 3 | Pinned-Dependencies | dependency not pinned by hash detected -- score normalized to 3 |
| 0 | SAST | SAST tool is not run on all commits -- score normalized to 0 |
| 10 | Security-Policy | security policy file detected |
| n/a | Signed-Releases | no releases found |
| 0 | Token-Permissions | detected GitHub workflow tokens with excessive permissions |
| 0 | Vulnerabilities | 15 existing vulnerabilities detected |
Direct dependencies 26
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| crates.io | a3s-boot | 0.2.0 | Cargo.toml |
| crates.io | a3s-event | 0.3 | Cargo.toml |
| crates.io | a3s-orm | 0.3.1 | Cargo.toml |
| crates.io | async-trait | 0.1 | Cargo.toml |
| crates.io | chrono | 0.4 | Cargo.toml |
| crates.io | futures-util | 0.3 | Cargo.toml |
| crates.io | serde | 1 | Cargo.toml |
| crates.io | serde_json | 1 | Cargo.toml |
| crates.io | serde_yaml_ng | 0.10 | Cargo.toml |
| crates.io | semver | 1 | Cargo.toml |
| crates.io | sha2 | 0.10 | Cargo.toml |
| crates.io | ryu-js | 1 | Cargo.toml |
| crates.io | thiserror | 1 | Cargo.toml |
| crates.io | tracing | 0.1 | Cargo.toml |
| crates.io | uuid | 1 | Cargo.toml |
| crates.io | tokio | 1 | Cargo.toml |
| npm | @a3s-lab/flow-ui | file:../packages/ui | website/package.json |
| npm | @a3s-lab/ui | git+https://github.com/A3S-Lab/UI.git#171fa3c4a348ecd41080e2fb33498ac44d4fc045 | website/package.json |
| npm | @fontsource-variable/geist | ^5.3.0 | website/package.json |
| npm | @fontsource-variable/geist-mono | ^5.3.0 | website/package.json |
| npm | @fontsource-variable/noto-sans-sc | ^5.3.0 | website/package.json |
| npm | @phosphor-icons/react | ^2.1.10 | website/package.json |
| npm | @rspress/core | ^2.0.19 | website/package.json |
| npm | @xyflow/react | ^12.11.3 | website/package.json |
| npm | react | ^19.2.8 | website/package.json |
| npm | react-dom | ^19.2.8 | website/package.json |
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.