Public recordGood
Software health reportschema 0.31.0 · metrics 2.5.0 · 2026-08-05 07:59 UTC
shiguredo / mp4-rs
MP4 library
shiguredo/mp4-rs holds a health index of 78 out of 100, placing it in the Good band. It scores highest on Vitality (88/100) and lowest on Community & Adoption (50/100). It was last updated 2 days ago. A single contributor accounts for most of its recent work.
78
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.
78
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 67 is calibrated to 78 on the published index scale (record calibration 2026-08-02).
Ownership
時雨堂 (shiguredo)Organization
552 followers137 public repossince Oct 2012
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 | shiguredo_mp4 | 2026.4.0 | 2,874 | 26 | 2 days ago | no-std |
| crates.io | pbtpoints to another repo — not scored | 0.5.12 | 169 | 46 | 18 days ago | arbitraryfuzzpropertyproptesttestsecuritydata-structuresalgorithmsmathematics |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
88
Development activity
86Excellent
How it's scored
| 36/36 | Push recency — last push 2 days ago |
| 22.2/36 | Commit cadence — 32/52 weeks with commits |
| 18/18 | Commit volume — 1,366 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 | 1,366 |
| human_commit_share | 1 |
| days_since_last_push | 2 |
| active_weeks_last_year | 32 |
Release discipline
90Excellent
How it's scored
| 27/27 | Ships releases — 27 releases published |
| 36/36 | Release recency — latest release 2 days ago |
| 27/27 | Release cadence — a release every ~22.3 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases. |
Inputs used
| releases_count | 27 |
| latest_release_tag | 2026.4.0 |
| releases_from_tags | no |
| days_since_latest_release | 2 |
| mean_days_between_releases | 22.3 |
Community & Adoption
Does the project have users, downloads, attention, and a welcoming setup for contributors?
50
Popularity & adoption
45Weak
How it's scored
| 35.4/60 | Stars — 154 stars |
| 4/25 | Forks — 4 forks |
| 5.3/15 | Watchers — 10 watchers |
Inputs used
| forks | 4 |
| stars | 154 |
| watchers | 10 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
50Moderate
How it's scored
| 22.5/22.5 | README |
| 22.5/22.5 | License — recognized license (Apache-2.0) |
| 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 |
| 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
| 46.1/80 | Monthly downloads — 2,874 downloads/month across crates |
| 0/20 | Registry dependents — not reported by this ecosystem |
Inputs used
| packages | shiguredo_mp4 |
| dependents | — |
| ecosystems | crates |
| total_downloads | 30,369 |
| monthly_downloads | 2,874 |
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)
25At Risk
How it's scored
| 9/54 | Bus factor — 1 contributor(s) cover half of all commits |
| 1.8/22.5 | Commit distribution — top contributor authored 92% of commits |
| 4.1/13.5 | Contributor breadth — 3 contributors |
| 10/10 | OpenSSF Scorecard: Contributors — project has 3 contributing companies or organizations -- score normalized to 10 |
Inputs used
| bus_factor | 1 |
| contributors_sampled | 3 |
| top_contributor_share | 0.92 |
How it's scored
| 0/42 | Issue resolution — no issues or no data |
| 29.7/30 | PR acceptance — 103/104 decided PRs merged |
| 0/13 | Newcomer PR acceptance — no first-time contributor's PR decided in 30d |
| 0/15 | OpenSSF Scorecard: Code-Review — Found 0/11 approved changesets -- score normalized to 0 |
Inputs used
| merged_prs | 103 |
| open_issues | 0 |
| closed_issues | 0 |
| prs_merged_7d | 24 |
| prs_decided_7d | 24 |
| prs_merged_30d | 47 |
| prs_decided_30d | 47 |
| issue_closed_ratio | — |
| closed_unmerged_prs | 1 |
| first_time_authors_30d | 0 |
| first_time_prs_merged_30d | 0 |
| first_time_prs_decided_30d | 0 |
Excluded from scoring (no data or not applicable): Issue resolution, newcomer_pr_acceptance. Remaining weights renormalized.
Ownership & stewardship
75Good
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain |
| 19.7/25 | Owner reach — 552 followers of shiguredo |
| 25/25 | Track record — 137 public repos, account ~13 yr old |
Inputs used
| followers | 552 |
| owner_type | Organization |
| is_verified | — |
| owner_login | shiguredo |
| public_repos | 137 |
| account_age_days | 5,044 |
Package maintenance
100Exceptional
How it's scored
| 25/25 | Published & resolvable — 1 package(s) on crates |
| 35/35 | Publish recency — latest publish 2 days ago |
| 20/20 | Version history — 26 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | shiguredo_mp4 |
| ecosystems | crates |
| any_deprecated | no |
| min_days_since_publish | 2 |
Engineering Quality
Are baseline engineering and documentation practices in place?
68
Engineering practices
64Moderate
How it's scored
| 24/24 | CI workflows — 3 workflow(s) |
| 24/24 | Tests present |
| 0/16 | Linter config |
| 0/9.6 | Pre-commit hooks |
| 0/6.4 | .editorconfig |
| 16/20 | OpenSSF Scorecard: CI-Tests — 4 out of 5 merged PRs checked by a CI test -- score normalized to 8 |
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 |
| 25/25 | Documentation directory |
| 0/15 | Documentation / homepage site |
| 10/10 | Repository description |
| 10/10 | Topics — 5 topics |
| 0/10 | Wiki |
Inputs used
| topics | mp4, rust, no-std, zero-dependency, sans-io |
| has_wiki | no |
| homepage | — |
| 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?
65
Security posture
56Moderate
How it's scored
| 7.5/7.5 | Binary-Artifacts — no binaries found in the repo |
| 0/7.5 | Branch-Protection — branch protection not enabled on development/release branches |
| 2/2.5 | CI-Tests — 4 out of 5 merged PRs checked by a CI test -- score normalized to 8 |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 0/7.5 | Code-Review — Found 0/11 approved changesets -- score normalized to 0 |
| 2.5/2.5 | Contributors — project has 3 contributing companies or organizations -- score normalized to 10 |
| 10/10 | Dangerous-Workflow — no dangerous workflow patterns detected |
| 7.5/7.5 | Dependency-Update-Tool — update tool detected |
| 5/5 | Fuzzing — project is fuzzed |
| 2.5/2.5 | License — license file 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 |
| 2/5 | Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 4 |
| 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 |
| 7.5/7.5 | Vulnerabilities — 0 existing vulnerabilities detected |
Inputs used
| source | openssf_scorecard |
| checks_evaluated | 18 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 0 |
| scorecard_aggregate | 5.6 |
Dependency advisories
100Exceptional
How it's scored
| 35/35 | Direct dependencies free of known advisories — no direct dependency carries a known advisory |
| 0/25 | Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope |
| 0/40 | No advisories left outstanding — no advisory carries a publication date |
Inputs used
| source | osv |
| advisories | 0 |
| affected_packages | 0 |
| assessed_packages | 78 |
| unassessed_packages | 4 |
| affected_by_severity | none |
| direct_affected_packages | 0 |
Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 78 resolved dependencies against OSV. 4 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list. This repository publishes no package the index resolves, so the repository dependency graph was assessed instead. That graph mixes development and test pins with shipped dependencies, so only the declared runtime dependencies are scored; transitive findings are reported as context and excluded from the score. Reachability is not analyzed.
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.
64
Agent context & guidance
57Moderate
How it's scored
| 45/45 | Agent instructions — AGENTS.md, CLAUDE.md |
| 0/15 | Machine-readable docs (llms.txt) |
| 12.3/40 | Legible commit history — 23 of 100 human commits state their intent (structured subject or explanatory body) |
Inputs used
| has_llms_txt | no |
| legible_history_share | 0.23 |
| agent_instruction_files | AGENTS.md, CLAUDE.md |
| agent_instruction_max_bytes | 1,639 |
How it's scored
| 18/18 | One-command bootstrap — Makefile |
| 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 agent-authored commits among the last 100 |
| 0/8 | Automated maintenance — no automated dependency updates observed |
| 4/10 | OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 4 |
Inputs used
| has_nix | no |
| has_tests | yes |
| lockfiles | Cargo.lock |
| has_dockerfile | no |
| typed_language | yes |
| bootstrap_files | Makefile |
| has_devcontainer | no |
| has_linter_config | no |
| typecheck_configs | — |
| agent_commit_share | 0 |
| toolchain_manifests | Cargo.toml, crates/c-api/Cargo.toml, crates/wasm/Cargo.toml, examples/dump_wasm/Cargo.toml, examples/transcode_wasm/Cargo.toml, fuzz/Cargo.toml, pbt/Cargo.toml |
| dependency_bot_commit_share | 0 |
Code legibility for models
97Exceptional
How it's scored
| 45/45 | Type-checkable code — Rust (statically typed) |
| 51.8/55 | Manageable file sizes — 9/157 source files over 60KB |
Inputs used
| primary_language | Rust |
| largest_source_bytes | 117,735 |
| source_files_sampled | 157 |
| oversized_source_files | 9 |
How it's scored
| 0/40 | API schema (OpenAPI/GraphQL/proto) |
| 0/20 | MCP server |
| 40/40 | Runnable examples — examples |
Inputs used
| example_dirs | examples |
| has_mcp_signal | no |
| api_schema_files | — |
Key facts
154GitHub stars
3contributors
1,366commits, last 12 months
2days since last push
27releases
1bus factor
0open issues
crates.iopackage ecosystems
Data collection warnings
- Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
- crates package 'pbt' points at a different repository (https://github.com/wrsturgeon/pbt); excluded from ecosystem scoring
- deps.dev does not index crates:shiguredo_mp4@2026.4.0; advisories assessed against the repository dependency graph instead
More detail
Star and fork history 0 ★ / 4 ⇿
0Stars
4Forks
26Releases
When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.
Major 0Minor 11Patch 0
Each point covers 2 days.
OpenSSF Scorecard 5.6 / 10
5.6aggregate
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 |
| 0 | Branch-Protection | branch protection not enabled on development/release branches |
| 8 | CI-Tests | 4 out of 5 merged PRs checked by a CI test -- score normalized to 8 |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 0 | Code-Review | Found 0/11 approved changesets -- score normalized to 0 |
| 10 | Contributors | project has 3 contributing companies or organizations -- score normalized to 10 |
| 10 | Dangerous-Workflow | no dangerous workflow patterns detected |
| 10 | Dependency-Update-Tool | update tool detected |
| 10 | Fuzzing | project is fuzzed |
| 10 | License | license file 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 |
| 4 | Pinned-Dependencies | dependency not pinned by hash detected -- score normalized to 4 |
| 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 |
| 10 | Vulnerabilities | 0 existing vulnerabilities detected |
All dependencies 82
Full resolved dependency set from the GitHub dependency graph: 0 direct and 82 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|---|---|---|
| crates.io | arbitrary | 1.4.2 | indirect |
| crates.io | autocfg | 1.5.0 | indirect |
| crates.io | bit-set | 0.8.0 | indirect |
| crates.io | bit-vec | 0.8.0 | indirect |
| crates.io | bitflags | 2.11.1 | indirect |
| crates.io | cbindgen | — | indirect |
| crates.io | cbindgen | 0.29.4 | indirect |
| crates.io | cc | 1.2.50 | indirect |
| crates.io | cfg-if | 1.0.4 | indirect |
| crates.io | equivalent | 1.0.2 | indirect |
| crates.io | errno | 0.3.14 | indirect |
| crates.io | fastrand | 2.4.1 | indirect |
| crates.io | find-msvc-tools | 0.1.5 | indirect |
| crates.io | fnv | 1.0.7 | indirect |
| crates.io | futures | — | indirect |
| crates.io | futures | 0.3.33 | indirect |
| crates.io | futures-channel | 0.3.33 | indirect |
| crates.io | futures-core | 0.3.33 | indirect |
| crates.io | futures-executor | 0.3.33 | indirect |
| crates.io | futures-io | 0.3.33 | indirect |
| crates.io | futures-macro | 0.3.33 | indirect |
| crates.io | futures-sink | 0.3.33 | indirect |
| crates.io | futures-task | 0.3.33 | indirect |
| crates.io | futures-util | 0.3.33 | indirect |
| crates.io | getrandom | 0.3.4 | indirect |
| crates.io | hashbrown | 0.17.0 | indirect |
| crates.io | heck | 0.5.0 | indirect |
| crates.io | indexmap | 2.14.0 | indirect |
| crates.io | itoa | 1.0.18 | indirect |
| crates.io | jobserver | 0.1.34 | indirect |
| crates.io | libc | 0.2.178 | indirect |
| crates.io | libc | 0.2.185 | indirect |
| crates.io | libfuzzer-sys | 0.4.13 | indirect |
| crates.io | linux-raw-sys | 0.12.1 | indirect |
| crates.io | log | 0.4.29 | indirect |
| crates.io | memchr | 2.8.0 | indirect |
| crates.io | nojson | — | indirect |
| crates.io | nojson | 0.3.12 | indirect |
| crates.io | num-traits | 0.2.19 | indirect |
| crates.io | once_cell | 1.21.4 | indirect |
| crates.io | pin-project-lite | 0.2.17 | indirect |
| crates.io | ppv-lite86 | 0.2.21 | indirect |
| crates.io | proc-macro2 | 1.0.106 | indirect |
| crates.io | proptest | — | indirect |
| crates.io | proptest | 1.11.0 | indirect |
| crates.io | quick-error | 1.2.3 | indirect |
| crates.io | quote | 1.0.45 | indirect |
| crates.io | r-efi | 5.3.0 | indirect |
| crates.io | rand | 0.9.4 | indirect |
| crates.io | rand_chacha | 0.9.0 | indirect |
| crates.io | rand_core | 0.9.5 | indirect |
| crates.io | rand_xorshift | 0.4.0 | indirect |
| crates.io | regex-syntax | 0.8.10 | indirect |
| crates.io | rustix | 1.1.4 | indirect |
| crates.io | rusty-fork | 0.3.1 | indirect |
| crates.io | serde | 1.0.228 | indirect |
| crates.io | serde_core | 1.0.228 | indirect |
| crates.io | serde_derive | 1.0.228 | indirect |
| crates.io | serde_json | 1.0.149 | indirect |
| crates.io | serde_spanned | 1.1.1 | indirect |
| crates.io | shlex | 1.3.0 | indirect |
| crates.io | slab | 0.4.12 | indirect |
| crates.io | syn | 2.0.117 | indirect |
| crates.io | tempfile | 3.27.0 | indirect |
| crates.io | toml | 0.9.12+spec-1.1.0 | indirect |
| crates.io | toml_datetime | 0.7.5+spec-1.1.0 | indirect |
| crates.io | toml_parser | 1.1.2+spec-1.1.0 | indirect |
| crates.io | toml_writer | 1.1.1+spec-1.1.0 | indirect |
| crates.io | unarray | 0.1.4 | indirect |
| crates.io | unicode-ident | 1.0.24 | indirect |
| crates.io | wait-timeout | 0.2.1 | indirect |
| crates.io | wasip2 | 1.0.1+wasi-0.2.4 | indirect |
| crates.io | wasip2 | 1.0.2+wasi-0.2.9 | indirect |
| crates.io | windows-link | 0.2.1 | indirect |
| crates.io | windows-sys | 0.61.2 | indirect |
| crates.io | winnow | 0.7.15 | indirect |
| crates.io | winnow | 1.0.1 | indirect |
| crates.io | wit-bindgen | 0.46.0 | indirect |
| crates.io | wit-bindgen | 0.51.0 | indirect |
| crates.io | zerocopy | 0.8.48 | indirect |
| crates.io | zerocopy-derive | 0.8.48 | indirect |
| crates.io | zmij | 1.0.21 | indirect |
Dependency advisories 0
This repository publishes no package the index resolves, so its own dependency graph was assessed — 78 packages, which also include development and test pins that never ship: 0 carry known advisories, of which 0 are direct. 4 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list.
No known advisories affect the assessed dependencies.
An advisory means the version recorded in the dependency graph falls inside an advisory’s affected range. Reachability is not analysed, and the graph includes development and test pins — a finding may concern tooling rather than shipped software.
Raw JSON report machine-readable
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"activity": {
"releases": [
{
"tag": "2026.4.0",
"kind": "minor",
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{
"tag": "2026.3.0",
"kind": "minor",
"published_at": "2026-04-03T03:07:50Z"
},
{
"tag": "2026.3.0-canary.0",
"kind": "prerelease",
"published_at": "2026-04-02T04:57:08Z"
},
{
"tag": "2026.2.0",
"kind": "minor",
"published_at": "2026-03-13T05:14:24Z"
},
{
"tag": "2026.2.0-canary.5",
"kind": "prerelease",
"published_at": "2026-03-11T08:12:13Z"
},
{
"tag": "2026.2.0-canary.4",
"kind": "prerelease",
"published_at": "2026-03-11T06:01:39Z"
},
{
"tag": "2026.2.0-canary.3",
"kind": "prerelease",
"published_at": "2026-02-26T05:53:27Z"
},
{
"tag": "2026.2.0-canary.2",
"kind": "prerelease",
"published_at": "2026-02-02T05:48:36Z"
},
{
"tag": "2026.2.0-canary.1",
"kind": "prerelease",
"published_at": "2026-01-28T05:09:33Z"
},
{
"tag": "2026.2.0-canary.0",
"kind": "prerelease",
"published_at": "2026-01-14T05:03:52Z"
},
{
"tag": "2026.1.0",
"kind": "minor",
"published_at": "2026-01-05T02:21:17Z"
},
{
"tag": "2025.4.0",
"kind": "minor",
"published_at": "2025-12-15T05:04:09Z"
},
{
"tag": "2025.4.0-canary.0",
"kind": "prerelease",
"published_at": "2025-12-04T05:32:05Z"
},
{
"tag": "2025.3.0",
"kind": "minor",
"published_at": "2025-11-06T02:13:19Z"
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"body": "- compute_earliest_presentation_time が EPT サンプルの keyframe を返す\n- starts_with_sap / sap_type を samples[0] 基準から EPT 基準に変える\n- 境界を単体テスト 3 本で固定し CHANGES に [FIX] を追記する",
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"headline": "0059 sidx の starts_with_sap を EPT サンプルの SAP 状態と整合させる",
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},
{
"oid": "a933312bbe305a4b35fe81a8f65664c4accd5da1",
"body": "- 配列 + 長さのシグネチャに破壊的に置き換える\n- 呼び出し箇所とテスト・CHANGES を追従する",
"is_bot": false,
"headline": "0052 C API の mp4_estimate_maximum_moov_box_size を任意トラック数対応にする",
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"author_login": "sile",
"committed_at": "2026-07-31T06:52:42Z",
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},
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"body": "…dx の sidx.starts_with_sap / sap_type が EPT サンプルの実際の SAP 状態を反映していない",
"is_bot": false,
"headline": "0059 polished Fmp4SegmentMuxer::create_media_segment_metadata_with_si…",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T06:46:00Z",
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{
"oid": "ad05193c224816b74cb042ed0e476f07a0d4e6ad",
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"headline": "0052 issue のカテゴリを bug から change に変更する",
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{
"oid": "3d08774ff094b0b4e5aae06ed51f7c56bd4c332e",
"body": "…2 トラック分しか見積もれない",
"is_bot": false,
"headline": "0052 polished C API の `mp4_estimate_maximum_moov_box_size()` が音声・映像の …",
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},
{
"oid": "78c051b0ad791124f0c34adb04cafbb5ce4acc6b",
"body": "- Options に TrackKind 別の language / name を追加する\n- LanguageCode / TrackMetadata を新設する\n- 単体テストと両 muxer の PBT を追加する",
"is_bot": false,
"headline": "0053 両 muxer でトラックの言語とトラック名を指定できるようにする",
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"author_login": "sile",
"committed_at": "2026-07-31T06:29:53Z",
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},
{
"oid": "7fe9382e192921d26f5fc3d43cb07ee59f735f49",
"body": "…うにする",
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"headline": "0053 polished 両 muxer でトラックの言語（mdhd.language）とトラック名（hdlr.name）を指定できるよ…",
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"author_login": "sile",
"committed_at": "2026-07-31T06:15:53Z",
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},
{
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"headline": "0052 設計方針と完了条件を決定内容で書き換える",
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},
{
"oid": "3c6ec8f7a37926ca1a4932b88ea842fbf1ca1487",
"body": "…oad-size-zero\n\n`BoxHeader::decode_header_and_payload` で 32bit の size=0（`BoxSize::VARIABLE_SIZE`）をバッファ末尾までの可変長ボックスとして扱えるようにする",
"is_bot": false,
"headline": "Merge pull request #100 from shiguredo/feature/fix-decode-header-payl…",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T06:04:42Z",
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"oid": "e0c1cd4a760fb02f1647fb6452b27d9f449efc28",
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"is_bot": false,
"headline": "0025 closed basic_types.rs の decode_header_and_payload で size=0 の特別処理…",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T06:03:22Z",
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},
{
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"headline": "0025 解決方法を追記する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T06:03:21Z",
"body_truncated": false,
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},
{
"oid": "fccd61c9f0580988da423ed53b69f78e9d57ee54",
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"headline": "0025 decode_header_and_payload の空ペイロードとバッファ不足の回帰テストを追加する",
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"author_login": "sile",
"committed_at": "2026-07-31T06:01:38Z",
"body_truncated": false,
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},
{
"oid": "3899604e09e078a76363241dbbbe0d9f4789caf6",
"body": "…olicy\n\nwasm の mp4_alloc 失敗（OOM）時の方針を abort に統一する",
"is_bot": false,
"headline": "Merge pull request #98 from shiguredo/feature/change-wasm-alloc-oom-p…",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:57:42Z",
"body_truncated": false,
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},
{
"oid": "4f1ec3a2d660e06df3183a587caebf09a1214b5f",
"body": null,
"is_bot": false,
"headline": "0060 wasm クレートの冗長・陳腐化したコメント注記を整理する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:56:21Z",
"body_truncated": false,
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},
{
"oid": "7c02f1ac905a28c5d9433bab4d36d1d924c8d3ec",
"body": "- ネスト時のスライス末尾扱いと U64(0) のエラー経路を明記する\n- 冗長なコメントとテストの重複アサーションを削る",
"is_bot": false,
"headline": "0025 size=0 関連のドキュメントとコメントを整理する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:55:59Z",
"body_truncated": false,
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},
{
"oid": "9c4fa6a604f75009dd50864dcceba9f9fbb032ba",
"body": null,
"is_bot": false,
"headline": "0060 closed wasm の mp4_alloc 失敗（OOM）時の方針を abort に統一する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:32:54Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "76e8f26ed72a83145a7f084c2429ec646db04f2e",
"body": null,
"is_bot": false,
"headline": "0060 解決方法を追記する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:32:41Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "5cfe2a960cf38de2c2c242b5d554e348d6dac0ff",
"body": "- U32(0) のみ特別扱いし U64(0) はエラーのままにする\n- 回帰テストとドキュメントを更新する\n- CHANGES に FIX を追記する",
"is_bot": false,
"headline": "0025 decode_header_and_payload で size=0 をバッファ末尾まで扱えるようにする",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:31:56Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "7e07be7bafa30147708c2460464abd8a8edda4ae",
"body": null,
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"headline": "0053 設計方針を 3 論点の確定案に書き換える",
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"author_login": "sile",
"committed_at": "2026-07-31T05:30:26Z",
"body_truncated": false,
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},
{
"oid": "02d54c492833b3fb648290f2eda78028944f88c7",
"body": "…処理が到達不能なデッドコードになっている",
"is_bot": false,
"headline": "0025 polished basic_types.rs の decode_header_and_payload で size=0 の特別…",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:29:16Z",
"body_truncated": false,
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},
{
"oid": "4b31732c216b89bab0f8bbf70a5f818f71f54d47",
"body": null,
"is_bot": false,
"headline": "0060 hev1 の全 units 空入力に対する free 中間状態の回帰テストを追加する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:27:05Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "697b90a0323c7a412a312f26dd7d56a4c39827e4",
"body": "- 他実装調査結果 (FFmpeg / GPAC / Bento4 / mp4parse-rust) を反映する\n- largesize=0 は仕様未定義のためエラー継続に確定する",
"is_bot": false,
"headline": "0025 設計方針を size=0 のみ末尾扱いに絞り込む",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:20:47Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "a78ef3764a1216dd2e908e4a6ab99f36e2c7861c",
"body": "…as-i32\n\nc-api の `mp4_file_demuxer_get_required_input` / `mp4_file_kind_detector_get_required_input` で要求サイズが `i32::MAX` を超えたときに `-1`（EOF）と衝突しないようにする",
"is_bot": false,
"headline": "Merge pull request #99 from shiguredo/feature/fix-capi-required-size-…",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:17:43Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "6e7b500cbd67f719cbcbd13ad3e542e385c0a95b",
"body": null,
"is_bot": false,
"headline": "0024 CHANGES の説明を破損入力への防御として書き換える",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:16:02Z",
"body_truncated": false,
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},
{
"oid": "271bba786f6d19c68c8ab8d57aedb9f7fb32d98a",
"body": null,
"is_bot": false,
"headline": "0060 wasm クレートの冗長な null / size ガードを abort invariant のもとで撤去する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:15:54Z",
"body_truncated": false,
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},
{
"oid": "11f1d33e274027420d79306d96f60e9d8d2db1da",
"body": "…）と衝突する",
"is_bot": false,
"headline": "0024 closed c-api の required_input_size が usize as i32 で切り捨てられ -1（EOF…",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:12:14Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "5a48a7f5c4766a65f3bfe42308fd73c71af4aa4b",
"body": null,
"is_bot": false,
"headline": "0024 解決方法を追記する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:12:14Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "37efaf2cfb0896d88756fb4768c36b0a144a5a4f",
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"is_bot": false,
"headline": "0024 get_required_input の使用例で戻り値を確認するようにする",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:10:12Z",
"body_truncated": false,
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{
"oid": "3ca4c4a292c1607e758f384d4d6127bd976dcd6d",
"body": null,
"is_bot": false,
"headline": "0060 wasm クレート OOM 方針変更に伴う doc とコメントの文言を精緻化する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:05:56Z",
"body_truncated": false,
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},
{
"oid": "cd7e7a9d663189dbaaded04d88d6400790798602",
"body": "- 戻り値説明を demuxer / detector で揃える\n- 不正確なテストコメントと冗長なインラインを直す",
"is_bot": false,
"headline": "0024 required_input_size 関連のコメントとドキュメントを整える",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T05:02:51Z",
"body_truncated": false,
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},
{
"oid": "6f648c83ba186df0ab9b53b44e39dd6d7719f246",
"body": "Hybrid MP4 の取り扱いについての補足ドキュメントを追加する",
"is_bot": false,
"headline": "Merge pull request #97 from shiguredo/feature/add-hybrid-mp4-doc",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T04:59:33Z",
"body_truncated": false,
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},
{
"oid": "3bccfeb5f2442c4b1ea3a4dfa82d5535fc15c427",
"body": null,
"is_bot": false,
"headline": "0057 closed Hybrid MP4 の取り扱いについての補足ドキュメントを追加する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T04:57:36Z",
"body_truncated": false,
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},
{
"oid": "bed4f52dee85ee06b0138ccc0162daefbc44e716",
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"headline": "0057 完了記録と Completed を追記する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T04:57:27Z",
"body_truncated": false,
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},
{
"oid": "073918c30781dc3119a47eb55fabe7d29e2dae35",
"body": null,
"is_bot": false,
"headline": "0057 Hybrid MP4 の比較表を書き直し C API 参照を削除する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T03:58:44Z",
"body_truncated": false,
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{
"oid": "cbd56fb5dff8fa96076b0202efb52d61b510d345",
"body": "- 超過時は MP4_ERROR_UNSUPPORTED を返す\n- ヘルパー単体テストとドキュメントを追加する",
"is_bot": false,
"headline": "0024 required_input_size の usize as i32 切り捨てを修正する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T03:52:15Z",
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{
"oid": "0468e87e017b1ec059ccd468d5b97719bb2afd40",
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"headline": "0057 Hybrid MP4 のコード例の書き戻し panic と繰り返し記述を修正する",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T03:49:12Z",
"body_truncated": false,
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},
{
"oid": "6c6699622f237eb434c3520d80f18ae4f359e6a5",
"body": "…OF）と衝突する",
"is_bot": false,
"headline": "0024 polished c-api の required_input_size が usize as i32 で切り捨てられ -1（E…",
"author_name": "Takeru Ohta",
"author_login": "sile",
"committed_at": "2026-07-31T03:48:30Z",
"body_truncated": false,
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"headline": "0024 設計方針を try_from + UNSUPPORTED に絞り込む",
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"author_login": "sile",
"committed_at": "2026-07-31T03:35:52Z",
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{
"oid": "c9bb823e82dd592a8a5227fb50b9f33af43f8f9f",
"body": "- `mp4_alloc` / `allocate_and_copy_*` の確保失敗を abort に寄せる\n- 0034 由来の fmt null ガードと部分 alloc 失敗テストを整理する\n- `CHANGES.md` に契約変更を追記する",
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"headline": "0060 wasm の mp4_alloc 失敗（OOM）時の方針を abort に統一する",
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"committed_at": "2026-07-31T03:32:57Z",
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"headline": "0060 polished wasm の mp4_alloc 失敗（OOM）時の方針を abort に統一する",
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"author_login": "sile",
"committed_at": "2026-07-31T03:27:46Z",
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{
"oid": "95c5d306ac39a01b623ee2351bed7b559d51bb24",
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"headline": "0057 Hybrid MP4 ドキュメントから hisui への参考リンクを削除する",
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"committed_at": "2026-07-31T03:19:12Z",
"body_truncated": false,
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"oid": "2bf99f41e956ab0dfcb26918b6bf324f4de4267b",
"body": "- docs/hybrid_mp4.md を追加し docs.rs から取り込む\n- CHANGES.md の misc にエントリを追加する",
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"headline": "0057 Hybrid MP4 の取り扱いについての補足ドキュメントを追加する",
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"committed_at": "2026-07-31T03:18:17Z",
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"headline": "0060 wasm の OOM 方針を abort に確定する",
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"committed_at": "2026-07-31T03:15:45Z",
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"headline": "0057 polished Hybrid MP4 の取り扱いについての補足ドキュメントを追加する",
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"headline": "0057 目的と設計方針を役割分担・用語参照先中心に書き換える",
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{
"oid": "88004c1136cf6bf2f2c154ef98226f111c2e65ba",
"body": "`MuxError` に `NoSyncSamples` を追加し、同期サンプルを持たない映像トラックを `Mp4FileMuxer` が拒否するようにする",
"is_bot": false,
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"deploy.yml",
"release.yml"
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"has_editorconfig": false,
"has_linter_config": false,
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"security_signals": {
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{
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"documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#branch-protection"
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{
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{
"name": "Dangerous-Workflow",
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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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"documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#dependency-update-tool"
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{
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},
{
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"documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#license"
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{
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{
"name": "Packaging",
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"documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#packaging"
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{
"name": "Pinned-Dependencies",
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"documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#pinned-dependencies"
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{
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"documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#sast"
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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#token-permissions"
},
{
"name": "Vulnerabilities",
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"reason": "0 existing vulnerabilities detected",
"documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#vulnerabilities"
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"source": {
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"key": "forks",
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"code": "forks",
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}
],
"max_points": 25
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{
"key": "watchers",
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"points": 5.3,
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"code": "watchers",
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],
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]
},
{
"key": "community_health",
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"note": null,
"notes": [],
"value": 50,
"inputs": {
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"has_license": true,
"readme_badges": 4,
"has_contributing": false,
"has_issue_template": false,
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"readme_badge_services": [
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"components": [
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"key": "readme",
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"points": 22.5,
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"details": [],
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{
"key": "license",
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"detail": "recognized license (Apache-2.0)",
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"details": [
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"code": "license_standard",
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{
"code": "license_spdx",
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],
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{
"key": "contributing_guide",
"name": "CONTRIBUTING guide",
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"points": 0,
"status": "missed",
"details": [],
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{
"key": "code_of_conduct",
"name": "Code of conduct",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
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},
{
"key": "issue_template",
"name": "Issue template",
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"points": 0,
"status": "missed",
"details": [],
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{
"key": "pr_template",
"name": "PR template",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 6.3
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]
},
{
"key": "ecosystem_adoption",
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"name": "Ecosystem adoption (downloads)",
"note": "Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.",
"notes": [
{
"code": "excluded_no_data",
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{
"code": "weights_renormalized",
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],
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"components": [
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"key": "monthly_downloads",
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"points": 46.1,
"status": "partial",
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],
"max_points": 80
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{
"key": "registry_dependents",
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{
"key": "governance",
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"weight": 0.23,
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{
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"key": "contributor_breadth",
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{
"key": "openssf_scorecard_contributors",
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},
{
"key": "responsiveness",
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"notes": [
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"code": "excluded_no_data",
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{
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{
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]
},
{
"key": "stewardship",
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"components": [
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{
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{
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]
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{
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"description": "Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?"
},
{
"key": "engineering",
"band": "good",
"name": "Engineering Quality",
"value": 68,
"weight": 0.19,
"metrics": [
{
"key": "engineering_practices",
"band": "moderate",
"name": "Engineering practices",
"note": null,
"notes": [],
"value": 64,
"inputs": {
"has_ci": true,
"has_tests": true,
"has_editorconfig": false,
"has_linter_config": false,
"has_precommit_config": false
},
"components": [
{
"key": "ci_workflows",
"name": "CI workflows",
"detail": "3 workflow(s)",
"points": 24,
"status": "met",
"details": [
{
"code": "ci_workflows",
"params": {
"count": 3
}
}
],
"max_points": 24
},
{
"key": "tests_present",
"name": "Tests present",
"detail": null,
"points": 24,
"status": "met",
"details": [],
"max_points": 24
},
{
"key": "linter_config",
"name": "Linter config",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 16
},
{
"key": "pre_commit_hooks",
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"detail": null,
"points": 0,
"status": "missed",
"details": [],
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},
{
"key": "editorconfig",
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"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 6.4
},
{
"key": "openssf_scorecard_ci_tests",
"name": "OpenSSF Scorecard: CI-Tests",
"detail": "4 out of 5 merged PRs checked by a CI test -- score normalized to 8",
"points": 16,
"status": "partial",
"details": [],
"max_points": 20
}
]
},
{
"key": "documentation",
"band": "good",
"name": "Documentation",
"note": null,
"notes": [],
"value": 75,
"inputs": {
"topics": [
"mp4",
"rust",
"no-std",
"zero-dependency",
"sans-io"
],
"has_wiki": false,
"homepage": null,
"has_readme": true,
"has_docs_dir": true,
"has_description": true
},
"components": [
{
"key": "readme",
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"detail": null,
"points": 30,
"status": "met",
"details": [],
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},
{
"key": "documentation_directory",
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"detail": null,
"points": 25,
"status": "met",
"details": [],
"max_points": 25
},
{
"key": "documentation_homepage_site",
"name": "Documentation / homepage site",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
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},
{
"key": "repository_description",
"name": "Repository description",
"detail": null,
"points": 10,
"status": "met",
"details": [],
"max_points": 10
},
{
"key": "topics",
"name": "Topics",
"detail": "5 topics",
"points": 10,
"status": "met",
"details": [
{
"code": "topics_count",
"params": {
"count": 5
}
}
],
"max_points": 10
},
{
"key": "wiki",
"name": "Wiki",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 10
}
]
}
],
"description": "Are baseline engineering and documentation practices in place?"
},
{
"key": "security",
"band": "good",
"name": "Security",
"value": 65,
"weight": 0.16,
"metrics": [
{
"key": "security_posture",
"band": "moderate",
"name": "Security posture",
"note": null,
"notes": [],
"value": 56,
"inputs": {
"source": "openssf_scorecard",
"checks_evaluated": 18,
"scorecard_version": "v5.5.0",
"checks_inconclusive": 0,
"scorecard_aggregate": 5.6
},
"components": [
{
"key": "binary_artifacts",
"name": "Binary-Artifacts",
"detail": "no binaries found in the repo",
"points": 7.5,
"status": "met",
"details": [],
"max_points": 7.5
},
{
"key": "branch_protection",
"name": "Branch-Protection",
"detail": "branch protection not enabled on development/release branches",
"points": 0,
"status": "missed",
"details": [],
"max_points": 7.5
},
{
"key": "ci_tests",
"name": "CI-Tests",
"detail": "4 out of 5 merged PRs checked by a CI test -- score normalized to 8",
"points": 2,
"status": "partial",
"details": [],
"max_points": 2.5
},
{
"key": "cii_best_practices",
"name": "CII-Best-Practices",
"detail": "no effort to earn an OpenSSF best practices badge detected",
"points": 0,
"status": "missed",
"details": [],
"max_points": 2.5
},
{
"key": "code_review",
"name": "Code-Review",
"detail": "Found 0/11 approved changesets -- score normalized to 0",
"points": 0,
"status": "missed",
"details": [],
"max_points": 7.5
},
{
"key": "contributors",
"name": "Contributors",
"detail": "project has 3 contributing companies or organizations -- score normalized to 10",
"points": 2.5,
"status": "met",
"details": [],
"max_points": 2.5
},
{
"key": "dangerous_workflow",
"name": "Dangerous-Workflow",
"detail": "no dangerous workflow patterns detected",
"points": 10,
"status": "met",
"details": [],
"max_points": 10
},
{
"key": "dependency_update_tool",
"name": "Dependency-Update-Tool",
"detail": "update tool detected",
"points": 7.5,
"status": "met",
"details": [],
"max_points": 7.5
},
{
"key": "fuzzing",
"name": "Fuzzing",
"detail": "project is fuzzed",
"points": 5,
"status": "met",
"details": [],
"max_points": 5
},
{
"key": "license",
"name": "License",
"detail": "license file detected",
"points": 2.5,
"status": "met",
"details": [],
"max_points": 2.5
},
{
"key": "maintained",
"name": "Maintained",
"detail": "30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10",
"points": 7.5,
"status": "met",
"details": [],
"max_points": 7.5
},
{
"key": "packaging",
"name": "Packaging",
"detail": "packaging workflow detected",
"points": 5,
"status": "met",
"details": [],
"max_points": 5
},
{
"key": "pinned_dependencies",
"name": "Pinned-Dependencies",
"detail": "dependency not pinned by hash detected -- score normalized to 4",
"points": 2,
"status": "partial",
"details": [],
"max_points": 5
},
{
"key": "sast",
"name": "SAST",
"detail": "SAST tool is not run on all commits -- score normalized to 0",
"points": 0,
"status": "missed",
"details": [],
"max_points": 5
},
{
"key": "security_policy",
"name": "Security-Policy",
"detail": "security policy file not detected",
"points": 0,
"status": "missed",
"details": [],
"max_points": 5
},
{
"key": "signed_releases",
"name": "Signed-Releases",
"detail": "Project has not signed or included provenance with any releases.",
"points": 0,
"status": "missed",
"details": [],
"max_points": 7.5
},
{
"key": "token_permissions",
"name": "Token-Permissions",
"detail": "detected GitHub workflow tokens with excessive permissions",
"points": 0,
"status": "missed",
"details": [],
"max_points": 7.5
},
{
"key": "vulnerabilities",
"name": "Vulnerabilities",
"detail": "0 existing vulnerabilities detected",
"points": 7.5,
"status": "met",
"details": [],
"max_points": 7.5
}
]
},
{
"key": "dependency_advisories",
"band": "exceptional",
"name": "Dependency advisories",
"note": "Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 78 resolved dependencies against OSV; 4 could not be assessed (no resolved version, an unsupported ecosystem, or beyond the reported package list). This repository publishes no package the index resolves, so the repository dependency graph was assessed instead. That graph mixes development and test pins with shipped dependencies, so only the declared runtime dependencies are scored; transitive findings are reported as context and excluded from the score. Reachability is not analyzed.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
"indirect_dependencies_free_of_known_advisories",
"no_advisories_left_outstanding"
]
}
},
{
"code": "weights_renormalized",
"params": {}
},
{
"code": "advisories_scope_repository",
"params": {
"assessed": 78
}
},
{
"code": "advisories_unassessed",
"params": {
"count": 4
}
},
{
"code": "advisories_repo_graph_caveat",
"params": {}
},
{
"code": "advisories_reachability",
"params": {}
}
],
"value": 100,
"inputs": {
"source": "osv",
"advisories": 0,
"affected_packages": 0,
"assessed_packages": 78,
"unassessed_packages": 4,
"affected_by_severity": "none",
"direct_affected_packages": 0
},
"components": [
{
"key": "direct_dependencies_free_of_known_advisories",
"name": "Direct dependencies free of known advisories",
"detail": "no direct dependency carries a known advisory",
"points": 35,
"status": "met",
"details": [
{
"code": "no_direct_advisories",
"params": {}
}
],
"max_points": 35
},
{
"key": "indirect_dependencies_free_of_known_advisories",
"name": "Indirect dependencies free of known advisories",
"detail": "transitive set not separable from development and test dependencies in this scope",
"points": 0,
"status": "excluded",
"details": [
{
"code": "advisories_scope_not_separable",
"params": {}
}
],
"max_points": 25
},
{
"key": "no_advisories_left_outstanding",
"name": "No advisories left outstanding",
"detail": "no advisory carries a publication date",
"points": 0,
"status": "excluded",
"details": [
{
"code": "advisories_no_publication_date",
"params": {}
}
],
"max_points": 40
}
]
},
{
"key": "malicious_dependencies",
"band": "exceptional",
"name": "Malicious dependencies",
"note": null,
"notes": [],
"value": 100,
"inputs": {
"source": "osv",
"meaning": "reported as a malicious package by the OpenSSF corpus; the remedy is removal or moving off the compromised name, never an upgrade of the same artifact. Versions the registry has since pulled are listed but not scored",
"packages": [],
"red_flag": false,
"assessed_packages": 78,
"malicious_packages": 0,
"direct_malicious_packages": 0,
"withdrawn_malicious_packages": 0,
"installable_malicious_packages": 0
},
"components": [
{
"key": "no_dependency_reported_as_a_malicious_package",
"name": "No dependency reported as a malicious package",
"detail": "no dependency is reported as a malicious package",
"points": 100,
"status": "met",
"details": [
{
"code": "no_malicious_dependencies",
"params": {}
}
],
"max_points": 100
}
]
},
{
"key": "high_risk_jurisdiction_exposure",
"band": "exceptional",
"name": "High-Risk Jurisdiction Exposure",
"note": "Only high-confidence self-published location evidence affects this multiplier. Ambiguous matches are review-only; country evidence is not proof of nationality, citizenship, legal registration, malicious intent, or sanctions status.",
"notes": [
{
"code": "jurisdiction_evidence_limits",
"params": {}
}
],
"value": 100,
"inputs": {
"meaning": "self-published location evidence; not nationality or citizenship",
"red_flag": false,
"exposures": [],
"policy_countries": [
"Russia",
"Iran",
"North Korea"
],
"commit_weight_rule": {
"min_commits": 50,
"min_commit_share": 0.1
},
"review_only_matches": 0,
"below_threshold_exposures": [],
"assessed_self_published_locations": 4
},
"components": [
{
"key": "policy_exposure_multiplier",
"name": "Policy exposure multiplier",
"detail": "no confirmed policy-scope location match",
"points": 100,
"status": "met",
"details": [
{
"code": "jurisdiction_no_match",
"params": {}
}
],
"max_points": 100
}
]
}
],
"description": "Are visible security and supply-chain practices strong, with no malicious dependency and no unresolved high-risk jurisdiction exposure?"
},
{
"key": "ai_readiness",
"band": "moderate",
"name": "AI Readiness",
"value": 64,
"weight": 0.04,
"metrics": [
{
"key": "ai_agent_context",
"band": "moderate",
"name": "Agent context & guidance",
"note": null,
"notes": [],
"value": 57,
"inputs": {
"has_llms_txt": false,
"legible_history_share": 0.23,
"agent_instruction_files": [
"AGENTS.md",
"CLAUDE.md"
],
"agent_instruction_max_bytes": 1639
},
"components": [
{
"key": "agent_instructions",
"name": "Agent instructions",
"detail": "AGENTS.md, CLAUDE.md",
"points": 45,
"status": "met",
"details": [
{
"code": "file_list",
"params": {
"files": "AGENTS.md, CLAUDE.md"
}
}
],
"max_points": 45
},
{
"key": "machine_readable_docs_llms_txt",
"name": "Machine-readable docs (llms.txt)",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 15
},
{
"key": "legible_commit_history",
"name": "Legible commit history",
"detail": "23 of 100 human commits state their intent (structured subject or explanatory body)",
"points": 12.3,
"status": "partial",
"details": [
{
"code": "legible_history",
"params": {
"legible": 23,
"sampled": 100
}
}
],
"max_points": 40
}
]
},
{
"key": "ai_verify_loop",
"band": "good",
"name": "Verify loop (build / test / typecheck)",
"note": null,
"notes": [],
"value": 65,
"inputs": {
"has_nix": false,
"has_tests": true,
"lockfiles": [
"Cargo.lock"
],
"has_dockerfile": false,
"typed_language": true,
"bootstrap_files": [
"Makefile"
],
"has_devcontainer": false,
"has_linter_config": false,
"typecheck_configs": [],
"agent_commit_share": 0,
"toolchain_manifests": [
"Cargo.toml",
"crates/c-api/Cargo.toml",
"crates/wasm/Cargo.toml",
"examples/dump_wasm/Cargo.toml",
"examples/transcode_wasm/Cargo.toml",
"fuzz/Cargo.toml",
"pbt/Cargo.toml"
],
"dependency_bot_commit_share": 0
},
"components": [
{
"key": "one_command_bootstrap",
"name": "One-command bootstrap",
"detail": "Makefile",
"points": 18,
"status": "met",
"details": [
{
"code": "file_list",
"params": {
"files": "Makefile"
}
}
],
"max_points": 18
},
{
"key": "automated_tests",
"name": "Automated tests",
"detail": null,
"points": 22,
"status": "met",
"details": [],
"max_points": 22
},
{
"key": "lint_format_config",
"name": "Lint / format config",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 11
},
{
"key": "static_type_checking",
"name": "Static type checking",
"detail": "Rust (statically typed)",
"points": 11,
"status": "met",
"details": [
{
"code": "statically_typed_language",
"params": {
"language": "Rust"
}
}
],
"max_points": 11
},
{
"key": "reproducible_environment",
"name": "Reproducible environment",
"detail": "lockfile",
"points": 10,
"status": "met",
"details": [
{
"code": "file_list",
"params": {
"files": "lockfile"
}
}
],
"max_points": 10
},
{
"key": "demonstrated_agent_practice",
"name": "Demonstrated agent practice",
"detail": "no agent-authored commits among the last 100",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_agent_authored_commits",
"params": {
"sampled": 100
}
}
],
"max_points": 10
},
{
"key": "automated_maintenance",
"name": "Automated maintenance",
"detail": "no automated dependency updates observed",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_dependency_automation",
"params": {}
}
],
"max_points": 8
},
{
"key": "openssf_scorecard_pinned_dependencies",
"name": "OpenSSF Scorecard: Pinned-Dependencies",
"detail": "dependency not pinned by hash detected -- score normalized to 4",
"points": 4,
"status": "partial",
"details": [],
"max_points": 10
}
]
},
{
"key": "ai_code_legibility",
"band": "exceptional",
"name": "Code legibility for models",
"note": null,
"notes": [],
"value": 97,
"inputs": {
"primary_language": "Rust",
"largest_source_bytes": 117735,
"source_files_sampled": 157,
"oversized_source_files": 9
},
"components": [
{
"key": "type_checkable_code",
"name": "Type-checkable code",
"detail": "Rust (statically typed)",
"points": 45,
"status": "met",
"details": [
{
"code": "statically_typed_language",
"params": {
"language": "Rust"
}
}
],
"max_points": 45
},
{
"key": "manageable_file_sizes",
"name": "Manageable file sizes",
"detail": "9/157 source files over 60KB",
"points": 51.8,
"status": "partial",
"details": [
{
"code": "oversized_source_files",
"params": {
"kb": 60,
"sampled": 157,
"oversized": 9
}
}
],
"max_points": 55
}
]
},
{
"key": "ai_interfaces",
"band": "weak",
"name": "Machine-readable interfaces",
"note": null,
"notes": [],
"value": 40,
"inputs": {
"example_dirs": [
"examples"
],
"has_mcp_signal": false,
"api_schema_files": []
},
"components": [
{
"key": "api_schema_openapi_graphql_proto",
"name": "API schema (OpenAPI/GraphQL/proto)",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 40
},
{
"key": "mcp_server",
"name": "MCP server",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 20
},
{
"key": "runnable_examples",
"name": "Runnable examples",
"detail": "examples",
"points": 40,
"status": "met",
"details": [
{
"code": "file_list",
"params": {
"files": "examples"
}
}
],
"max_points": 40
}
]
}
],
"description": "How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight: agent tooling is a real maintenance signal, but its absence must never gate the top of the scale (calibration saturates at raw 91, so 100/100 remains reachable with AI Readiness at zero)."
}
],
"classification": {
"top": [
"library"
],
"labels": [
"library"
],
"scores": {
"library": 7.4
},
"primary": "library",
"evidence": [
{
"tier": "distribution",
"label": "library",
"source": "registry:crates",
"weight": 6
},
{
"tier": "declared",
"label": "library",
"source": "cargo.publish_false",
"weight": -3.6
},
{
"tier": "structure",
"label": "library",
"source": "tree.cargo_lib",
"weight": 3
},
{
"tier": "description",
"label": "library",
"source": "description:library",
"weight": 2
}
],
"artifacts": [
{
"path": "Cargo.toml",
"labels": [],
"ecosystem": "crates"
},
{
"path": "pbt/Cargo.toml",
"labels": [],
"ecosystem": "crates"
}
],
"confidence": "medium",
"host_extension": false,
"runs_as_process": false,
"consumed_by_code": true
},
"metrics_version": "2.5.0"
},
"warnings": [
"Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token",
"crates package 'pbt' points at a different repository (https://github.com/wrsturgeon/pbt); excluded from ecosystem scoring",
"deps.dev does not index crates:shiguredo_mp4@2026.4.0; advisories assessed against the repository dependency graph instead"
],
"report_type": "repository",
"generated_at": "2026-08-05T07:59:31.406497Z",
"schema_version": "0.31.0",
"badge_url": "https://raw.githubusercontent.com/inspect-software/badges/main/v1/s/shiguredo/mp4-rs.svg",
"full_name": "shiguredo/mp4-rs",
"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 v2.5.0, schema v0.31.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics — crates.io.