公开记录中等
软件健康报告模式 0.27.0 · 指标 1.13.0 · 2026-07-28 13:28 UTC
pierrec / lz4
LZ4 compression and decompression in pure Go
pierrec/lz4 的健康指数为 100 分中的 60 分，处于「中等」区间。 其得分最高的类别是Sustainability & Governance（68/100），最低的是Security（47/100）。 最近一次更新在 58 天前。 近期的大部分工作由 1 位贡献者完成。
60
总分 / 100软件健康指数
指标归入加权类别，统一采用 1–100 量表。总体分先取类别加权平均；当公开证据触发高风险司法辖区政策时，评级会按政策调整，并设置 49（有风险）的上限。AI 就绪度不计入总体分。
60
优秀85-100堪称典范；基本满足所有检验标准
良好70-84健康；仅有轻微不足
中等50-69可接受，但存在明显不足；建议进行审查
存在风险30-49存在重大薄弱环节；采用时应保持审慎
危急1-29问题严重（项目被弃置、仅有单一维护者、缺乏基本工程规范）
评分画像
每条轴代表一个类别。形状比平均值更重要——健康的对象会填满整个图形，而“一峰一谷”式画像意味着某一维度的优势正掩盖另一维度的风险。
所有权
软件包生态系统
| 注册表 | 软件包 | 版本 | 月下载量 | 版本数 | 最近发布 |
|---|---|---|---|---|---|
| Go | github.com/pierrec/lz4/v4 | v4.1.27 | - | 32 | 58 天前 |
按类别列示的指标
活力
项目是否仍有生命——是否仍在编写代码，是否仍在发布版本？
60
开发活跃度
38存在风险
评分方式
| 18/36 | 推送新近度 — 最近一次推送于 58 天前 |
| 4.8/36 | 提交节奏 — 52 周中有 7 周有提交 |
| 12.2/18 | 提交量 — 最近一年 22 次提交 |
| 3/10 | OpenSSF Scorecard：Maintained — 3 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 3 |
所用输入
| commits_last_year | 22 |
| human_commit_share | 1 |
| days_since_last_push | 58 |
| active_weeks_last_year | 7 |
发布纪律
92优秀
评分方式
| 27/27 | 有发布版本 — 已发布 3 个发布版本 |
| 36/36 | 发布时效 — 最近一次发布版本于 58 天前 |
| 19.8/27 | 发布节奏 — 约每 82.3 天发布一次 |
| 0/10 | OpenSSF Scorecard：Signed-Releases — 无数据 |
所用输入
| releases_count | 3 |
| latest_release_tag | v4.1.27 |
| releases_from_tags | 否 |
| days_since_latest_release | 58 |
| mean_days_between_releases | 82.3 |
已排除计分（无数据或不适用）：OpenSSF Scorecard：Signed-Releases。 其余权重已重新归一化。
社区与采用
项目是否拥有用户、下载量与关注度，并具备欢迎贡献者参与的配置？
63
流行度与采用
74良好
评分方式
| 48.4/60 | 星标 — 967 个星标 |
| 18.2/25 | 复刻 — 152 个复刻 |
| 7.2/15 | 关注者 — 21 位关注者 |
所用输入
| forks | 152 |
| stars | 967 |
| watchers | 21 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
社区健康
50中等
评分方式
| 22.5/22.5 | README |
| 22.5/22.5 | 许可证 — 可识别的许可证（BSD-3-Clause） |
| 0/18 | CONTRIBUTING 指南 |
| 0/13.5 | 行为准则 |
| 0/7.2 | 议题模板 |
| 0/6.3 | PR 模板 |
所用输入
| has_readme | 是 |
| has_license | 是 |
| has_contributing | 否 |
| has_issue_template | 否 |
| has_code_of_conduct | 否 |
| has_pull_request_template | 否 |
可持续性与治理
项目能否在其成员之外延续——巴士系数、响应能力、由谁支持，以及软件包的维护状况？
68
维护者韧性（巴士系数）
40存在风险
评分方式
| 9/54 | 巴士系数 — 1 位贡献者贡献了半数提交 |
| 7.5/22.5 | 提交分布 — 头号贡献者编写了 67% 的提交 |
| 13.5/13.5 | 贡献者广度 — 37 位贡献者 |
| 10/10 | OpenSSF Scorecard：Contributors — project has 18 contributing companies or organizations |
所用输入
| bus_factor | 1 |
| contributors_sampled | 37 |
| top_contributor_share | 0.666 |
议题与 PR 响应能力
86优秀
评分方式
| 38.6/46.8 | 议题解决 — 82% 的议题已关闭 |
| 35.4/38.3 | PR 接受 — 已裁定的 PR 中 113/122 已合并 |
| 12/15 | OpenSSF Scorecard：Code-Review — Found 9/11 approved changesets -- score normalized to 8 |
所用输入
| merged_prs | 113 |
| open_issues | 21 |
| closed_issues | 99 |
| issue_closed_ratio | 0.825 |
| closed_unmerged_prs | 9 |
所有权与托管责任
60中等
评分方式
| 10/30 | 所有权背书 — 个人（用户）账户 |
| 0/20 | 已验证域名 — 不适用于个人账户 |
| 13.7/25 | 所有者影响力 — pierrec 有 80 位关注者 |
| 24.4/25 | 既往记录 — 49 个公开仓库，账户约 15 年 |
所用输入
| followers | 80 |
| owner_type | User |
| is_verified | — |
| owner_login | pierrec |
| public_repos | 49 |
| account_age_days | 5,823 |
已排除计分（无数据或不适用）：已验证域名。 其余权重已重新归一化。
软件包维护
100优秀
评分方式
| 25/25 | 已发布且可解析 — go 上有 1 个软件包 |
| 35/35 | 发布时效 — 最近一次发布于 58 天前 |
| 20/20 | 版本历史 — 32 个已发布版本 |
| 20/20 | 未被弃用 — 活跃，未被弃用或撤回 |
所用输入
| packages | github.com/pierrec/lz4/v4 |
| ecosystems | go |
| any_deprecated | 否 |
| min_days_since_publish | 58 |
工程质量
基础的工程与文档实践是否到位？
58
工程实践
56中等
评分方式
| 24/24 | CI 工作流 — 1 个工作流 |
| 24/24 | 存在测试 |
| 0/16 | Linter 配置 |
| 0/9.6 | Pre-commit 钩子 |
| 0/6.4 | .editorconfig |
| 8/20 | OpenSSF Scorecard：CI-Tests — 4 out of 9 merged PRs checked by a CI test -- score normalized to 4 |
所用输入
| has_ci | 是 |
| has_tests | 是 |
| has_editorconfig | 否 |
| has_linter_config | 否 |
| has_precommit_config | 否 |
文档
60中等
评分方式
| 30/30 | README |
| 0/25 | 文档目录 |
| 0/15 | 文档 / 主页站点 |
| 10/10 | 仓库描述 |
| 10/10 | 主题标签 — 4 个主题标签 |
| 10/10 | Wiki |
所用输入
| topics | go, golang, lz4, lz4-frame |
| has_wiki | 是 |
| homepage | — |
| has_readme | 是 |
| has_docs_dir | 否 |
| has_description | 是 |
安全
可见的安全与供应链实践是否稳固，且不存在未解决的高风险司法辖区暴露？
47
安全态势
34存在风险
评分方式
| 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 |
| 1/2.5 | CI-Tests — 4 out of 9 merged PRs checked by a CI test -- score normalized to 4 |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 6/7.5 | Code-Review — Found 9/11 approved changesets -- score normalized to 8 |
| 2.5/2.5 | Contributors — project has 18 contributing companies or organizations |
| 10/10 | Dangerous-Workflow — no dangerous workflow patterns detected |
| 0/7.5 | Dependency-Update-Tool — no update tool detected |
| 0/5 | Fuzzing — project is not fuzzed |
| 2.5/2.5 | 许可证 — license file detected |
| 2.2/7.5 | Maintained — 3 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 3 |
| 0/5 | Packaging — 无数据 |
| 0/5 | Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0 |
| 0/5 | SAST — SAST tool is not run on all commits -- score normalized to 0 |
| 0/5 | Security-Policy — security policy file not detected |
| 0/7.5 | Signed-Releases — 无数据 |
| 0/7.5 | Token-Permissions — detected GitHub workflow tokens with excessive permissions |
| 0/7.5 | Vulnerabilities — 27 existing vulnerabilities detected |
所用输入
| source | openssf_scorecard |
| checks_evaluated | 16 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 2 |
| scorecard_aggregate | 3.4 |
已排除计分（无数据或不适用）：packaging, signed_releases。 其余权重已重新归一化。
依赖安全公告
100优秀
评分方式
| 35/35 | 直接依赖不含已知公告 — 没有直接依赖携带已知公告 |
| 0/25 | 间接依赖不含已知公告 — 在此范围内，传递依赖集合无法与开发和测试依赖区分 |
| 0/40 | 没有长期未处理的公告 — 没有公告带有发布日期 |
所用输入
| source | osv |
| advisories | 0 |
| affected_packages | 0 |
| assessed_packages | 12 |
| unassessed_packages | 0 |
| affected_by_severity | none |
| direct_affected_packages | 0 |
已排除计分（无数据或不适用）：间接依赖不含已知公告, 没有长期未处理的公告。 其余权重已重新归一化。 已将 12 个已解析依赖与 OSV 比对。 该仓库未发布任何索引可解析的软件包，因此改为评估仓库依赖图。该图将开发与测试版本固定同交付的依赖混在一起，因此仅对声明的运行时依赖计分；传递性发现仅作为背景信息列出，不计入评分。 未对可达性进行分析。
AI 就绪度
该仓库在多大程度上具备与 AI 编码代理协同开发与维护的条件？这是一枚独立的实验性徽章——权重为 0.0，因此单独呈现，不影响总体健康评分。
59
AI 代理上下文与指引
37存在风险
评分方式
| 0/45 | 代理指令 — 没有 CLAUDE.md / AGENTS.md / 编辑器规则 |
| 0/15 | 机器可读文档（llms.txt） |
| 36.8/40 | 可读的提交历史 — 100 次人类提交中有 69 次说明了意图（结构化标题或解释性正文） |
所用输入
| has_llms_txt | 否 |
| legible_history_share | 0.69 |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
评分方式
| 12.6/18 | 一条命令的引导启动 — cmd/lz4c/go.mod, fuzz/go.mod, go.mod（工具链约定，无任务运行器） |
| 22/22 | 自动化测试 |
| 0/11 | Lint / 格式化配置 |
| 11/11 | 静态类型检查 — Go（静态类型） |
| 10/10 | 可复现环境 — lockfile |
| 4/10 | 已体现的代理实践 — 最近 100 次提交中有 2 次由代理编写或署名代理 |
| 0/8 | 自动化维护 — 未观察到自动依赖更新 |
| 0/10 | OpenSSF Scorecard：Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0 |
所用输入
| has_nix | 否 |
| has_tests | 是 |
| lockfiles | go.sum |
| has_dockerfile | 否 |
| typed_language | 是 |
| bootstrap_files | — |
| has_devcontainer | 否 |
| has_linter_config | 否 |
| typecheck_configs | — |
| agent_commit_share | 0.02 |
| toolchain_manifests | cmd/lz4c/go.mod, fuzz/go.mod, go.mod |
| dependency_bot_commit_share | 0 |
面向模型的代码可读性
100优秀
评分方式
| 45/45 | 可类型检查的代码 — Go（静态类型） |
| 55/55 | 可控的文件大小 — 采样的 36 个源文件中有 0 个超过 60KB |
所用输入
| primary_language | Go |
| largest_source_bytes | 12,487 |
| source_files_sampled | 36 |
| oversized_source_files | 0 |
关键数据
967GitHub 星标
37贡献者
22最近 12 个月提交数
58距最近推送天数
3发布版本数
1巴士系数（bus factor）
21开放议题
Go软件包生态系统数
数据采集警告
- Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
更多细节
Star 与 Fork 历史 0 ★ / 152 ⇿
0Star
152Fork
3发布
每颗 star 和每个 fork 的添加时间，来自 GitHub 并按天汇总。累计增长位于其构成来源——每日新增——的正上方，二者可相互对照：稳定的自然增长与短暂的突增形态截然不同。当这一差别可被衡量时，它会作为增长真实性予以报告。
主版本 0次版本 0修订 3
每个点涵盖 11 天。
OpenSSF Scorecard 3.4 / 10
3.4综合
来自开源项目 OpenSSF Scorecard 的独立、工具无关的安全评估。每项检查奖励的是安全实践本身，而非特定供应商的工具。Scorecard 无法判定的检查项标记为 不适用，并从安全评分中剔除（绝不按零分计）。
| 10 | Binary-Artifacts | no binaries found in the repo |
| 0 | Branch-Protection | branch protection not enabled on development/release branches |
| 4 | CI-Tests | 4 out of 9 merged PRs checked by a CI test -- score normalized to 4 |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 8 | Code-Review | Found 9/11 approved changesets -- score normalized to 8 |
| 10 | Contributors | project has 18 contributing companies or organizations |
| 10 | Dangerous-Workflow | no dangerous workflow patterns detected |
| 0 | Dependency-Update-Tool | no update tool detected |
| 0 | Fuzzing | project is not fuzzed |
| 10 | License | license file detected |
| 3 | Maintained | 3 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 3 |
| 不适用 | Packaging | packaging workflow not detected |
| 0 | Pinned-Dependencies | dependency not pinned by hash detected -- score normalized to 0 |
| 0 | SAST | SAST tool is not run on all commits -- score normalized to 0 |
| 0 | Security-Policy | security policy file not detected |
| 不适用 | Signed-Releases | no releases found |
| 0 | Token-Permissions | detected GitHub workflow tokens with excessive permissions |
| 0 | Vulnerabilities | 27 existing vulnerabilities detected |
全部依赖 12
来自 GitHub 依赖图的完整解析依赖集合：0 个直接依赖与 12 个间接（传递）软件包。仓库提交锁文件时，传递闭包才是完整的。
| 注册表 | 软件包 | 版本 | 关系 |
|---|---|---|---|
| Go | code.cloudfoundry.org/bytefmt | 0.0.0-20231017140541-3b893ed0421b | 间接 |
| Go | github.com/dvyukov/go-fuzz | 0.0.0-20201115201419-0701ec3cea76 | 间接 |
| Go | github.com/elazarl/go-bindata-assetfs | 1.0.1 | 间接 |
| Go | github.com/mattn/go-runewidth | 0.0.15 | 间接 |
| Go | github.com/pierrec/cmdflag | 0.0.2 | 间接 |
| Go | github.com/pierrec/lz4/v4 | 4.0.0-00010101000000-000000000000 | 间接 |
| Go | github.com/pierrec/lz4/v4 | 4.1.19 | 间接 |
| Go | github.com/rivo/uniseg | 0.4.4 | 间接 |
| Go | github.com/schollz/progressbar/v3 | 3.14.1 | 间接 |
| Go | github.com/stephens2424/writerset | 1.0.2 | 间接 |
| Go | golang.org/x/term | 0.15.0 | 间接 |
| Go | golang.org/x/tools | 0.0.0-20201116002733-ac45abd4c88c | 间接 |
依赖安全公告 0
该仓库未发布可被索引解析的包，因此评估的是其自身的依赖图——共 12 个包，其中也包含从不交付的开发与测试版本固定：0 个存在已知公告，0 个为直接依赖。
没有已知公告影响已评估的依赖。
公告表示依赖图中记录的版本落入某条公告的受影响范围。可达性未经分析，且依赖图包含开发与测试的版本固定——某项发现可能只涉及工具链而非交付的软件。
原始 JSON 报告 机器可读
{
"data": {
"repo": {
"topics": [
"go",
"golang",
"lz4",
"lz4-frame"
],
"is_fork": false,
"size_kb": 68857,
"has_wiki": true,
"homepage": null,
"languages": {
"Go": 142187,
"Assembly": 30439
},
"pushed_at": "2026-05-31T08:26:53Z",
"created_at": "2015-03-14T17:21:06Z",
"owner_type": "User",
"updated_at": "2026-07-28T12:56:26Z",
"description": "LZ4 compression and decompression in pure Go",
"is_archived": false,
"is_disabled": false,
"license_spdx": "BSD-3-Clause",
"default_branch": "v4",
"license_spdx_raw": "BSD-3-Clause",
"primary_language": "Go",
"significant_languages": [
"Go",
"Assembly"
]
},
"owner": {
"blog": null,
"name": "Pierre Curto",
"type": "User",
"login": "pierrec",
"company": null,
"location": "Paris (France)",
"followers": 80,
"avatar_url": "https://avatars.githubusercontent.com/u/368228?v=4",
"created_at": "2010-08-18T09:15:08Z",
"is_verified": null,
"public_repos": 49,
"account_age_days": 5823
},
"license": {
"state": "standard",
"spdx_id": "BSD-3-Clause",
"raw_spdx": "BSD-3-Clause",
"file_present": true,
"scorecard_found": true,
"profile_has_license": true
},
"activity": {
"releases": [
{
"tag": "v4.1.27",
"kind": "patch",
"published_at": "2026-05-31T08:31:30Z"
},
{
"tag": "v4.1.26",
"kind": "patch",
"published_at": "2026-03-06T08:37:10Z"
},
{
"tag": "v4.1.23",
"kind": "patch",
"published_at": "2025-12-17T16:01:17Z"
}
],
"recent_commits": [
{
"oid": "a296161b6e73e177e902d9cdafbd3e8b9ffaa68f",
"body": "arm64: major decodeBlock performance rework",
"is_bot": false,
"headline": "Merge pull request #243 from honeycombio/lizf.arm64-shortcut",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2026-05-31T08:22:42Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "17a7cd8306b892532c1668af771cbb54d14b9324",
"body": "set err to nil after ReadFull returns io.EOF",
"is_bot": false,
"headline": "Merge pull request #245 from serprex/fix-read-eof-regression",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2026-05-31T08:22:06Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "a9333c3061d3ab75b01271fa1a9a0ba076b17f02",
"body": "When source size is multiple of block size, final io.ReadFull returns (0, io.EOF)\n`err` only cleared by `w.write` when `rn > 0`\n\nThis broke io.Copy which uses dst.(io.ReaderFrom) shortcut,\npropagating io.EOF to caller",
"is_bot": false,
"headline": "set err to nil after ReadFull returns io.EOF",
"author_name": "Philip Dubé",
"author_login": "serprex",
"committed_at": "2026-04-29T13:33:09Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "903773a82fcb0e520f20e05233a7ec445c413d13",
"body": null,
"is_bot": false,
"headline": "Merge branch 'v4' into lizf.arm64-shortcut",
"author_name": "Liz Fong-Jones",
"author_login": "lizthegrey",
"committed_at": "2026-04-23T17:56:21Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "2f2b6bbaaeb58484f47106b334d836955084135e",
"body": "ci: refresh Go matrix to 1.24-1.26 and bump actions",
"is_bot": false,
"headline": "Merge pull request #244 from honeycombio/lizf.ci-refresh",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2026-04-23T07:02:17Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "91e8b6facb72b4265b93aa5b537f54accca0af19",
"body": "For match copies where offset >= len (non-overlapping) and len >= 256\nbytes, jump out of the inline LDP/STP loop and into runtime·memmove.\nGo's arm64 memmove is hand-tuned NEON (128-bit reads/writes, prefetch,\nsoftware-pipelined 64 B/iter) and outruns any scalar loop we can\nrealistically write inlin\n[…]\numnar data shows ~56% of total match-copy bytes\ncome from matches of length >= 256, and essentially all of those\nhave offset >> len, so this path fires on the majority of real-world\nlong-match output.",
"is_bot": false,
"headline": "arm64: call runtime·memmove for long, non-overlapping match copies",
"author_name": "Liz Fong-Jones",
"author_login": "lizthegrey",
"committed_at": "2026-04-21T16:18:32Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "0894170a60ac9fa12d1e4bf18ae85dca3756e131",
"body": "copyMatchLoop8 has carried a comment claiming \"a 16-at-a-time loop\ndoesn't provide a further speedup\". On columnar / record-oriented\ncompressed data that comment is no longer accurate: measurements show\nlong matches (actual match length >= 19, ~9% of matches by count) emit\n~75% of total match-copy b\n[…]\ntly\ntruncates a larger immediate (e.g. $32 -> $0), which produces a loop\nentered on any offset >= 0 and corrupts output. The entry condition\nuses CCMP offset, $31 + BLS so the encoding stays in range.",
"is_bot": false,
"headline": "arm64: widen copyMatchLoop8 to 16 bytes/iter for offset >= 32",
"author_name": "Liz Fong-Jones",
"author_login": "lizthegrey",
"committed_at": "2026-04-21T16:18:32Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "f6dea622362f2df28ed6f90512218625d20cbaf4",
"body": "The shortcut's 18-byte match copy has been sequenced as three\nback-to-back 8+8+2 memory ops so that the RLE cycling case for\noffset 8..15 loads data that prior stores just produced. That\nsequencing is only required when offset < 18 -- any larger offset\nguarantees no overlap between the 16-byte LDP a\n[…]\n)\n\nNo statistically significant regressions. Wins concentrate on\nnon-RLE workloads as expected: RLE1/2 don't take the shortcut path\n(offset 1/2 splat is used instead), so they see only layout effects.",
"is_bot": false,
"headline": "arm64: LDP/STP fast path for shortcut match copy when offset >= 18",
"author_name": "Liz Fong-Jones",
"author_login": "lizthegrey",
"committed_at": "2026-04-21T03:26:22Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "4ce77f3d22808a7ce55ca1ccf50eb20851b29821",
"body": "The splat loop for offset 1/2 RLE matches was storing 8 bytes per\niteration. Every arm64 core we target (Graviton2/3/4/5, Apple\nM2/M3/M4) can retire an STP of two X-registers as a single 16-byte\nstore, so writing `STP (tmp3, tmp3), 16(dst)!` per iteration halves\nthe iteration count and the per-itera\n[…]\n\n BenchmarkUncompressRLE2 30530 MB/s -> 57920 MB/s (1.90x, offset=2)\n\nAll non-RLE benchmarks (Pg1661, Twain, Digits, Rand, RLE3, RLE4)\nare unchanged within noise: they don't exercise the splat path.",
"is_bot": false,
"headline": "arm64: widen splat store from 8 to 16 bytes per iter",
"author_name": "Liz Fong-Jones",
"author_login": "lizthegrey",
"committed_at": "2026-04-21T02:38:46Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "5f0a64122bc561e9cf80c0c6327339ce0cbf795f",
"body": "Go 1.19-1.21 are all end-of-life (1.21 went EOL in Feb 2024 when\n1.23 shipped). The current maintained Go versions are 1.25 and\n1.26; keeping 1.24 gives one EOL generation of headroom for\ndownstream consumers that haven't migrated yet.\n\nAlso bumps actions/checkout v2 -> v4 and actions/setup-go v2 ->\n[…]\n was disabled across all GitHub\nActions in 2024, so the current CI matrix has been failing to\nlaunch (not just the jobs themselves). v4 / v5 use Node 20.\n\nNo source changes; this is a CI-only refresh.",
"is_bot": false,
"headline": "ci: refresh Go matrix to 1.24-1.26 and bump actions",
"author_name": "Liz Fong-Jones",
"author_login": "lizthegrey",
"committed_at": "2026-04-21T02:19:33Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "998937e68150031faaa24696b29bb79fb55a4a9c",
"body": "Small-offset matches with offset 1 (byte RLE) or offset 2 (halfword\nRLE) previously went through a byte-at-a-time loop that on modern\narm64 cores is bottlenecked by store-to-load forwarding latency.\nWhen len >= 8 and offset is 1 or 2, splat the 1- or 2-byte pattern\nacross a 64-bit register and emit \n[…]\nssRLE4 1690 MB/s -> 1550 MB/s (noise)\n\nNon-RLE benchmarks (Pg1661, Twain, Digits, Rand) are unchanged\nwithin noise: the one added branch (CMP $8, len; BLO) is predicted\naway on non-RLE match paths.",
"is_bot": false,
"headline": "arm64: splat fast path for offset 1 and 2 in copyMatchLoop1",
"author_name": "Liz Fong-Jones",
"author_login": "lizthegrey",
"committed_at": "2026-04-21T01:59:01Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "41139b443e32eedf8e82e36fb7728c2dca2e0b54",
"body": "Ports the \"copy shortcut\" optimization from decode_amd64.s to\ndecode_arm64.s: when literal length is 0..14, there is at least\n32 bytes of dst and 16 bytes of src remaining, the match offset is\nat least 8, the match is within the current block (not dict), and\nthe match length is not extended, copy 16\n[…]\ns (+81%)\n Digits 4560 MB/s -> 4920 MB/s (+8%)\n Rand 9260 MB/s -> 9270 MB/s (flat, all-literal path unchanged)\n\nAdds one register (R20, dstend32 = dstend - 32) used only by the\nshortcut guard.",
"is_bot": false,
"headline": "arm64: add copy shortcut fast path",
"author_name": "Liz Fong-Jones",
"author_login": "lizthegrey",
"committed_at": "2026-04-21T01:12:38Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "60ed180f469c3090aa5453e33043a96f02e790a5",
"body": null,
"is_bot": false,
"headline": "remove failing test as its test file is unavailable (too large).",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2026-03-06T08:33:31Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "feb996bd667464756d6284de01fcb1c5d79f04b3",
"body": "Fix Reader stale data, Writer buffer leak, and zero-length write",
"is_bot": false,
"headline": "Merge pull request #240 from lkinley-rythmos/v4",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2026-03-05T09:29:07Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "5dfa7723090a1d6ffaad08f43ea864782b9fe1bd",
"body": "…ero-length write\n\n- TestReader_DirectModeStaleData: synthetic LZ4 frame with a zero-length\n uncompressed block verifies direct-mode r.data clearing\n- TestReader_BufferIssue: end-to-end test with bundle testdata\n- TestWriter_ResetWithoutClose: Reset without Close returns buffer to pool\n- TestWriter_ReadFromZeroLengthRead: zero-byte reads are skipped in ReadFrom\n\nCo-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Add regression tests for Reader stale data, Writer buffer leak, and z…",
"author_name": "Lance Kinley",
"author_login": "lkinley-rythmos",
"committed_at": "2026-03-04T22:21:50Z",
"body_truncated": false,
"is_coding_agent": true
},
{
"oid": "74d44e96f45dcec80d6c9ade6e035bb88cb86f6f",
"body": "- Reader.read: clear r.data in direct mode so that a subsequent\n zero-length block does not copy stale pool data\n- Writer.Reset: return data buffer to pool before resetting to\n prevent a memory leak on reuse\n- Writer.ReadFrom: skip write and handler call when read returns\n zero bytes\n\nCo-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>",
"is_bot": false,
"headline": "Fix Reader stale data, Writer buffer leak, and zero-length write",
"author_name": "Lance Kinley",
"author_login": "lkinley-rythmos",
"committed_at": "2026-02-07T19:19:12Z",
"body_truncated": false,
"is_coding_agent": true
},
{
"oid": "ace844d9aa4689551c0679d4a700adb95f0c5cd1",
"body": "Fixes #239.",
"is_bot": false,
"headline": "State: do not wrap io.EOF",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2026-01-17T09:00:21Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "a6fe6d4072fb777a2e7a3bab930f5de8ce5763f8",
"body": "Fix broken tests",
"is_bot": false,
"headline": "Merge pull request #238 from ncruces/ncruces",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2026-01-16T14:48:55Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "7aa3fed660712d5b16aa8bcad9913cf436c63ed4",
"body": "This was introduced in 0f7173a to fix #202.",
"is_bot": false,
"headline": "Fix block tests.",
"author_name": "Nuno Cruces",
"author_login": "ncruces",
"committed_at": "2026-01-14T11:30:49Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "6dfb2d648aba46961bc40f435a8467ea32e1e357",
"body": "I don't know what's going on with the test files, but both report errors\nwhen ran through:\n\n lz4 --test file.lz4\n\nSince #229 tries to continue reading past the first frame, it causes\nthese errors to show up.",
"is_bot": false,
"headline": "Fix legacy reader test.",
"author_name": "Nuno Cruces",
"author_login": "ncruces",
"committed_at": "2026-01-12T14:03:36Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "a72bd0ba2fe6b46422171fd294e081af81dde1a2",
"body": "These were broken since #220 and EOF resets the frame, which clears the\nContentSize, and both ReadAll and Copy read through EOF.\n\nAlso clarified the comment, as #229 means this is only really useful for\nthe current frame, whereas a stream is now a sequence of frames.",
"is_bot": false,
"headline": "Fix SizeOption tests.",
"author_name": "Nuno Cruces",
"author_login": "ncruces",
"committed_at": "2026-01-12T11:39:12Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "2a51f81be7b1c7f8e258ea4ef5064fc0279725ce",
"body": "This was introduced in #228.",
"is_bot": false,
"headline": "Fix crash in TestReader.",
"author_name": "Nuno Cruces",
"author_login": "ncruces",
"committed_at": "2026-01-12T11:36:03Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "cd9d7a4f66405a92f4881933816b828b0f7d5fe2",
"body": "replace deprecated functions",
"is_bot": false,
"headline": "Merge pull request #230 from 0xAozora/v4",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2025-05-10T15:40:43Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "0ebf0a52dd7a5857a9f857d2bc53dec2b1917855",
"body": null,
"is_bot": false,
"headline": "replace deprecated functions",
"author_name": "0xAozora",
"author_login": "0xAozora",
"committed_at": "2025-05-09T01:48:43Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "dd108f5ec171000788650f84c0e0f7970f108012",
"body": "Support for Append",
"is_bot": false,
"headline": "Merge pull request #229 from 0xAozora/v4",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2025-05-08T09:46:45Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "9bdf5f634e11b376161b33f3e3a3fae7dfeff914",
"body": null,
"is_bot": false,
"headline": "Support for Append",
"author_name": "0xAozora",
"author_login": "0xAozora",
"committed_at": "2025-04-26T21:32:16Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "71a9b632b2ba7bc051d74d47e579a2d276e177bd",
"body": "Eliminate interface-boxing allocations in blocks.go",
"is_bot": false,
"headline": "Merge pull request #228 from pendo-io/elim-blocks-ifaceallocs",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2025-04-11T07:15:28Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "fd6458dd51fd0d9c3f32c79e1f335507431ae8f2",
"body": null,
"is_bot": false,
"headline": "Improve allocations in blocks.go",
"author_name": "Drew Boyuka",
"author_login": "daboyuka",
"committed_at": "2025-04-09T20:23:12Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "006d000e4499194c10854972af93a9089e08d848",
"body": null,
"is_bot": false,
"headline": "Add unit tests and benchmarks for blocks.go",
"author_name": "Drew Boyuka",
"author_login": "daboyuka",
"committed_at": "2025-04-09T20:23:06Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "2b9933d22aef22a311a48aefa4ea524649b7c611",
"body": "Fix WriteTo on a started Reader, and the resulting incorrect error message",
"is_bot": false,
"headline": "Merge pull request #227 from jwebb/fix-fail",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2025-03-17T14:06:35Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "3bb69037d4d33b217543d17b3756c7e8996182d7",
"body": null,
"is_bot": false,
"headline": "Add WriteTo test",
"author_name": "Jamie Webb",
"author_login": null,
"committed_at": "2025-03-17T12:51:47Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "f7f887bceb24cde470103a262529c16679d013bd",
"body": "…ssage",
"is_bot": false,
"headline": "Fix WriteTo on a started Reader, and the resulting incorrect error me…",
"author_name": "Jamie Webb",
"author_login": null,
"committed_at": "2025-03-13T18:07:31Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "1a4bbaef2f12f93c70060b52121e992756077a1f",
"body": "Add CLI benchmarks",
"is_bot": false,
"headline": "Merge pull request #225 from klauspost/add-cli-benchmark",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2025-01-12T09:03:39Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "6945807a992539feec79df1e6751bc910ff9681a",
"body": "internal/lz4block: Speed up noasm decoder",
"is_bot": false,
"headline": "Merge pull request #226 from greatroar/noasm",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2025-01-12T09:02:51Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "a3839dcdcf7ce84eb46efe66a93d9d664e962d77",
"body": "When the compiler is told exactly how many bytes a copy call should\ncopy, and that number is at most 16, it will inline the call. Also, the\nold code only took the short match shortcut when the short literal\nshortcut was also taken. But long literals with short matches are\ncommon.\n\nBenchmark results \n[…]\n6 702.8Mi ± 1% 1309.5Mi ± 7% +86.32% (p=0.000 n=10)\n UncompressRand-16 6.878Gi ± 0% 6.850Gi ± 1% -0.42% (p=0.009 n=10)\n geomean 1.699Gi 2.430Gi +43.04%",
"is_bot": false,
"headline": "internal/lz4block: Speed up noasm decoder",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2025-01-11T09:57:01Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "eb139b7a84fdaa193437ab155996e18b54e381d5",
"body": "Add in-memory benchmark of stream encoding.\n\nSpecify `-bench=n` to run n benchmarks on every input with provided settings.",
"is_bot": false,
"headline": "Add CLI benchmarks",
"author_name": "Klaus Post",
"author_login": "klauspost",
"committed_at": "2024-12-31T14:48:48Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "0f7173a5b95f975973834ea04c88e62efca736d2",
"body": "This reduces the package size substantially.\nFixes #202.",
"is_bot": false,
"headline": "testdata: gzip compress raw files",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2024-12-12T19:11:07Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "2bb851f7eb9c71aca9c3a67399a7a826c4d2b7c7",
"body": "fix: reset frame when read to EOF to release buffer in Block",
"is_bot": false,
"headline": "Merge pull request #220 from aiquestion/v4_restframe",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2024-12-12T17:01:02Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "fdaa7e2eae2400f761d8503ca047b46d2ab67507",
"body": "Fixes #223.",
"is_bot": false,
"headline": "lz4stream/block: compute block checksum on the block not its source.",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2024-12-12T16:53:43Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "72f5eb617db082814b55046b7959073b5eb8b92b",
"body": null,
"is_bot": false,
"headline": "fix: reset frame when read to EOF to release buffer in Block",
"author_name": "ByteDance",
"author_login": "aiquestion",
"committed_at": "2024-08-19T11:41:26Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "294e7659e17723306ebf3a44cd7ad2c11f456c37",
"body": "Reverts bc1239ba, no longer needed to conform to legacy",
"is_bot": false,
"headline": "Merge pull request #216 from evanphx/b-fix-tests",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2024-01-08T20:17:19Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "6e17a24fd413d8ffe9f563376e803d4ddce07288",
"body": "This fixes the tests and verifies that the fix from bc1239ba, which\nbroke the tests, is no longer needed to conform to legacy compression.",
"is_bot": false,
"headline": "Reverts bc1239ba, no longer needed to conform to legacy",
"author_name": "Evan Phoenix",
"author_login": "evanphx",
"committed_at": "2024-01-08T19:42:28Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "9542ba54f589829673a0403acffdfdb5a6fad37a",
"body": null,
"is_bot": false,
"headline": "CI: update go versions to more recent ones",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2024-01-08T13:04:50Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "d9eb671a7a0692d7b0ac074f3b4cb43dc531dd5b",
"body": null,
"is_bot": false,
"headline": "cmd/lz4c: update go.mod and fix issue #214",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2024-01-03T16:20:52Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "219b252affdff286ab22e08f1da635b3e40e55e6",
"body": "Update README.md: add @latest to cli install command",
"is_bot": false,
"headline": "Merge pull request #213 from corneliusroemer/patch-1",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2024-01-03T16:04:48Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "58c60739dabf487fe6d5b1bab195570e5293cb05",
"body": null,
"is_bot": false,
"headline": "Update README.md: add @latest to cli install command",
"author_name": "Cornelius Roemer",
"author_login": "corneliusroemer",
"committed_at": "2023-12-25T04:12:14Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "e974631fb9d0027d944e898862d8c31b6f27e1b8",
"body": "CompressingReader: compressed data reader stream (#210)",
"is_bot": false,
"headline": "Merge pull request #211 from oakad/issue_210",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2023-12-08T15:52:16Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "76139896ff3591a8f18047bc676faefe45ec647c",
"body": "Signed-off-by: Alex Dubov <oakad@yahoo.com>",
"is_bot": false,
"headline": "CompressingReader: support older Go versions",
"author_name": "Alex Dubov",
"author_login": "oakad",
"committed_at": "2023-12-08T05:34:03Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "a0f6c5e4be7afda8aa9154f2b85ee64e9c3c5008",
"body": "Writer: initialize the writer on Flush() if wasn't initialized before",
"is_bot": false,
"headline": "Merge pull request #212 from edigaryev/writer-init-on-flush",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2023-12-07T08:46:44Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "3ac62b559678924aeda07eb7a725c3d382a06ccd",
"body": "This allows compressing empty files, because without this change\nthe proper headers were not emitted when reading an empty file\nvia e.g. io.Copy().\n\nSigned-off-by: Nikolay Edigaryev <edigaryev@gmail.com>",
"is_bot": false,
"headline": "Writer: initialize the writer on Flush() if wasn't initialized before",
"author_name": "Nikolay Edigaryev",
"author_login": "edigaryev",
"committed_at": "2023-11-22T12:39:13Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "4a80a2f8726c7b603b98707757eef952377a16a9",
"body": "It is possible for out buffer to have no overflow data and yet\nthe read offset will be not zero (if byte slices passed by the reader\njust happened to align perfectly).\n\nSigned-off-by: Alex Dubov <oakad@yahoo.com>",
"is_bot": false,
"headline": "CompressingReader: account for possible out buffer state",
"author_name": "Alex Dubov",
"author_login": "oakad",
"committed_at": "2023-11-13T07:16:21Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "f2ece5b1696566fc0d204f3ceab7c9aa41b8c7ba",
"body": "Out buffer may have some stale overflow data on Reset.\n\nSigned-off-by: Alex Dubov <oakad@yahoo.com>",
"is_bot": false,
"headline": "CompressingReader: make sure to clear out buffer",
"author_name": "Alex Dubov",
"author_login": "oakad",
"committed_at": "2023-11-13T07:01:49Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "65348f5f34d70b6fda82a21e53a55eb13b5024c7",
"body": "In Go, `http.Request` requires an `io.ReadCloser` for an upload body. To\nfacilitate compression of data being uploaded we want to wrap a\nsource reader (such an `io.File`) with a proposed\n`lz4.CompressingReader`, whereupon the said reader can be set directly\ninto `http.Request` Body field.\n\nThis benefits not only the plain `http.Request`, but also the various\nnetwork file storage APIs which build on top of Go's http client.\n\nSigned-off-by: Alex Dubov <oakad@yahoo.com>",
"is_bot": false,
"headline": "CompressingReader: compressed data reader stream (#210)",
"author_name": "Alex Dubov",
"author_login": "oakad",
"committed_at": "2023-11-13T06:50:15Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "ef495ee7d4516ddb9b31019170c8c3eb311caeb5",
"body": "Restore copyMatchTry4",
"is_bot": false,
"headline": "Merge pull request #207 from honeycombio/lizf.copy4",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2023-06-14T14:02:14Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "8801e2e957d65c696d92420e7d55945c12625e4d",
"body": null,
"is_bot": false,
"headline": "Restore copyMatchTry4",
"author_name": "Liz Fong-Jones",
"author_login": "lizthegrey",
"committed_at": "2023-06-03T00:48:05Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "6a69bd8894ef1e7ec64b86daa24034b08e25005e",
"body": "Signed-off-by: Pierre Curto <pierre.curto@gmail.com>",
"is_bot": false,
"headline": "update all dependencies",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2023-02-25T15:21:49Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "d2b3f5d3e4659cc4fd720d1649c39b5627187261",
"body": "Revert \"Hash five bytes instead of six\"",
"is_bot": false,
"headline": "Merge pull request #197 from greatroar/revert-hash5",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-09-27T07:11:15Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "cca61bae2446aeb57953e99963e33f13eea4e3be",
"body": "This reverts commit dff8cbc7b3b0fd8dbab7f517327f59388c1b25fd.\n\nAccording to @klauspost's research, this doesn't necessarily produce\nsmaller output and decompression speed suffers quite a bit. Closes #196.",
"is_bot": false,
"headline": "Revert \"Hash five bytes instead of six\"",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-09-25T14:42:29Z",
"body_truncated": false,
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},
{
"oid": "edc95a188bc81afa4a34b114aafcb8d41513dc84",
"body": "Signed-off-by: Pierre Curto <pierre.curto@gmail.com>",
"is_bot": false,
"headline": "internal/xxh: update the origin of the code",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-09-14T05:59:32Z",
"body_truncated": false,
"is_coding_agent": false
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{
"oid": "cb3e7ea2cd15fd4d9f4d65333308f20d9b5d8156",
"body": "Restore fix for #51, but in a different form",
"is_bot": false,
"headline": "Merge pull request #193 from greatroar/fix-189",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-09-10T06:38:32Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "118da3a0050fdc247c5b34f599424d2cabd1eb42",
"body": "The check for end > len(dst) was removed to fix #167, but this caused\na new bug, #189. It's restored in a form that avoids both.\n\nFixes #189, #191.",
"is_bot": false,
"headline": "Restore fix for #51, but in a different form",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-09-09T11:36:04Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "c3eaa1e8841ece1461ec5e0f1fbbd5f1c52d2f85",
"body": "remove state change after Flush",
"is_bot": false,
"headline": "Merge pull request #188 from leehinman/flush_fix",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-06-15T06:43:04Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "8582079abcd01a8243fc7d29eea6e5f4aa875e7f",
"body": "A call do Flush does not necessarily mean that the state should\nchange. Another write could come in, if the state is closed this\ncan't occur. Another Write can come in, it just needs to be a new\nblock.",
"is_bot": false,
"headline": "remove state change after Flush",
"author_name": "Lee E. Hinman",
"author_login": "leehinman",
"committed_at": "2022-06-15T01:28:59Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "885e900f46f2b4ba02927eb80e982edd8db50236",
"body": "do not auto-Close() Writer after ReadFrom()/Copy()",
"is_bot": false,
"headline": "Merge pull request #184 from lizthegrey/patch-1",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-05-23T07:34:31Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "ec13d8cf53539cda9a8ef35ffaf0c6d31118a6d8",
"body": "ReadFrom()/Copy() should leave it to user whether or not to Close() afterwards rather than shutting down/flushing immediately after the buffer is copied in.\r\n\r\nfixes #183",
"is_bot": false,
"headline": "do not auto-Close() Writer after ReadFrom()/Copy()",
"author_name": "Liz Fong-Jones",
"author_login": "lizthegrey",
"committed_at": "2022-05-18T05:06:23Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "c6ed913a9bb183497c53f77350d269427ab803ef",
"body": "Fix Reader.Reset() docs",
"is_bot": false,
"headline": "Merge pull request #179 from bodgit/doc",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-05-13T08:47:07Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "9dece95a203d1c37e41e8284f0cdb74709d84031",
"body": null,
"is_bot": false,
"headline": "Fix Reader.Reset() docs",
"author_name": "Matt Dainty",
"author_login": "bodgit",
"committed_at": "2022-05-12T17:30:39Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "b8cae7c096c63b2f8ca10b20843b8504e95d96a0",
"body": "Decoder improvements",
"is_bot": false,
"headline": "Merge pull request #172 from greatroar/decoder-fixes",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-03-22T07:05:51Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "db11e2633d91d918a02a208733b3cfab8b9e4000",
"body": "The other decoders handle this correctly.",
"is_bot": false,
"headline": "internal/lz4block: Handle zero offsets in amd64 shortcut",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-02-18T13:11:33Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "7c0f44d5dc8a9d0db8a06ce7b2a3a6b5484a5cf4",
"body": "This corner case wasn't detected by any of the decoders.",
"is_bot": false,
"headline": "internal/lz4block: Detect match with no space for offset",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-02-18T13:03:41Z",
"body_truncated": false,
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},
{
"oid": "24303cffaad515ae9d6613a91a0f725003b1847d",
"body": "Use fast loop after dict copy. Checking for its possibility costs as\nmany instructions as jumping over it.\n\nMove SUBS close to conditional branches for CPUs that fuse these\ninstructions.\n\nShave one instruction off the remainder handling code after this loop.\nA load from register base+register offset has the same latency and\nthroughput as a load from register+constant offset, at least on\nCortex-A72.",
"is_bot": false,
"headline": "internal/lz4block: arm64 decoder improvements",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-02-16T21:27:00Z",
"body_truncated": false,
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},
{
"oid": "bc1239ba9073d34e1c5cc25110deb212d3e72526",
"body": null,
"is_bot": false,
"headline": "[legacy] Writer: fix #156",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-02-12T19:08:56Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "f9f4ce27eb6a3bdcc6830dd5261c2dfa2cf9c8d7",
"body": null,
"is_bot": false,
"headline": "Writer: fix #170",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-02-12T08:42:08Z",
"body_truncated": false,
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},
{
"oid": "687388676c983331e18e229c430e9cc108782822",
"body": null,
"is_bot": false,
"headline": "portable encoder: adjust off by 1 bound checks",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-02-12T08:24:31Z",
"body_truncated": false,
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},
{
"oid": "7e764f73f7cb74bcd418db52060b12cf76d1128e",
"body": null,
"is_bot": false,
"headline": "portable decoder: fix #167",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-02-12T08:24:22Z",
"body_truncated": false,
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},
{
"oid": "49196799640a4a26196ab01472e7bde34de6734d",
"body": "internal/lz4block: Faster table reset",
"is_bot": false,
"headline": "Merge pull request #169 from greatroar/fast-table-reset",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-02-12T08:10:37Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "92c7da43462013e56f330e0cd7829905eee3a988",
"body": "Fix performance regression in amd64 decoder",
"is_bot": false,
"headline": "Merge pull request #168 from greatroar/amd64-regression",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-02-12T08:08:37Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "fd2bd12884a9584f43c1ee51524fa238bc3c5b53",
"body": "Zeroing out the 128kiB hash table takes a considerable amount of time in\nrepeated calls to CompressBlock on small, poorly compressible blocks.\nGive the hashtable an 8kiB bitmap indicating which entries are in use\nand zero that out instead.\n\nLinux/amd64, Go 1.17:\n\nname old speed new\n[…]\npressTwain-8 532MB/s ± 4% 526MB/s ± 6% ~ (p=0.283 n=19+20)\nCompressRand-8 21.1MB/s ± 4% 21.2MB/s ± 7% ~ (p=0.635 n=20+20)\n\n(I'm not sure why 1.18 is slower than 1.17 overall.)",
"is_bot": false,
"headline": "internal/lz4block: Faster table reset",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-02-09T17:36:37Z",
"body_truncated": true,
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},
{
"oid": "a79cadb95a1ac1b35202112499e46fd57a3995ad",
"body": "In the fix for #163, I accidentally rerouted matches without literals\nthrough the slow match copy path. This undoes the mistake, with the\nadditional optimization of using 32-bit instructions where possible,\nto counter some slowdown in BenchmarkUncompressDigits.\n\nCompared to 257c664d416bd8deace75610e\n[…]\n± 2% 2.38GB/s ± 1% +2.65% (p=0.000 n=10+19)\nUncompressTwain-8 812MB/s ± 1% 1227MB/s ± 1% +51.20% (p=0.000 n=10+20)\nUncompressRand-8 3.90GB/s ± 2% 3.87GB/s ± 2% ~ (p=0.062 n=9+20)",
"is_bot": false,
"headline": "internal/lz4block: Fix performance regression in amd64 decoder",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-02-09T16:34:21Z",
"body_truncated": true,
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},
{
"oid": "271c8cc4291b8dda11d9b355957505f3cb4d33c7",
"body": "It was compressing the wrong file and didn't get enough space to\nactually compress its input.",
"is_bot": false,
"headline": "Fix BenchmarkCompressRandom",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-02-09T16:24:23Z",
"body_truncated": false,
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},
{
"oid": "c54b395e3ce35d2f24f09bf41b46ddeebdc98301",
"body": "internal/lz4block: Remove unused loop from arm64 decoder",
"is_bot": false,
"headline": "Merge pull request #166 from greatroar/arm64-cleanup",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-02-07T20:03:52Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "1cbdd8169b0510935efd9164dbbea4dcda897fb6",
"body": null,
"is_bot": false,
"headline": "internal/lz4block: Remove unused loop from arm64 decoder",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-02-07T18:28:23Z",
"body_truncated": false,
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},
{
"oid": "a5532e5996ee86d17f8ce2694c08fb5bf3c6b471",
"body": "Permit some invalid inputs in portable decoder",
"is_bot": false,
"headline": "Merge pull request #165 from greatroar/fix-160",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-02-07T17:09:36Z",
"body_truncated": false,
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},
{
"oid": "f27c1a0ed0f6c78a37c7b904fe041be5b5d6a93e",
"body": "Inputs that violate the end of block restrictions are now permitted in\nthe portable decoder, so that UncompressBlock (and its companion\nWithDict) is now consistent across platforms. The asm decoders already\nallow these inputs and TestBlockDecode relied on them producing the right\noutput, even when an error was returned.\n\nFixes #160.",
"is_bot": false,
"headline": "internal/lz4block: Permit some invalid inputs in portable decoder",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-02-06T12:50:40Z",
"body_truncated": false,
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{
"oid": "947bcf2cb7b335de36ac19425f9dbe257f85d38c",
"body": "Fixes #163.",
"is_bot": false,
"headline": "internal/lz4block: Handle empty buffer in amd64 decoder",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-02-06T12:38:43Z",
"body_truncated": false,
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},
{
"oid": "937a472cf6230c7a4662d8f9831d54faff99587d",
"body": null,
"is_bot": false,
"headline": "Merge remote-tracking branch 'origin/v4' into v4",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-02-05T08:10:40Z",
"body_truncated": false,
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{
"oid": "4b2f3242d34a675602201ec397e1a25ac80f110c",
"body": "internal/lz4block: Simplify portable decoder",
"is_bot": false,
"headline": "Merge pull request #159 from greatroar/simplify-decode-other",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-02-05T08:10:11Z",
"body_truncated": false,
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{
"oid": "5e2de87372f5c27f7323640dfa590520a2d8f508",
"body": "internal/lz4block: Short literal copying in arm64 decoder",
"is_bot": false,
"headline": "Merge pull request #162 from greatroar/arm64-literal-copy",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-02-05T08:09:52Z",
"body_truncated": false,
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},
{
"oid": "e99166d96a6e0c4d9f5141d3cf9e6952ee8dc7a4",
"body": "This borrows a trick from the amd64 decoder: copy short literals by\nalways copying 16 bytes, using the space beyond the literal's length as\nscratch space (but only when we're >=16 bytes from the end of src, dst).\n\nBenchmark results on RPi4B:\n\nname old speed new speed delta\nU\n[…]\n(p=0.000 n=10+10)\nUncompressRand-4 1.14GB/s ± 1% 1.13GB/s ± 1% ~ (p=0.075 n=10+10)\n\nAlso moved a SUBS to just before the associated branch to allow\ninstruction fusion on ARMs that do that.",
"is_bot": false,
"headline": "internal/lz4block: Short literal copying in arm64 decoder",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-02-04T11:37:19Z",
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{
"oid": "30805c8e2e72469c5845d4678d222b9bc1b245d8",
"body": null,
"is_bot": false,
"headline": "Merge remote-tracking branch 'origin/v4' into v4",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-01-31T08:49:43Z",
"body_truncated": false,
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},
{
"oid": "6bd757cc8db31d83920c9972713f2463426e96ce",
"body": "internal/lz4block: Copy literals of <=48 bytes through XMM registers in amd64 decoder",
"is_bot": false,
"headline": "Merge pull request #161 from greatroar/amd64-match-copy-48",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-01-31T08:49:21Z",
"body_truncated": false,
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},
{
"oid": "956d8fb4a36b159abc67c1261dbbeae22e5d0b56",
"body": null,
"is_bot": false,
"headline": "Merge remote-tracking branch 'origin/v4' into v4",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-01-31T08:45:36Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "257c664d416bd8deace75610eedccf6504312315",
"body": "name old speed new speed delta\nUncompressPg1661-8 1.15GB/s ± 1% 1.19GB/s ± 1% +3.39% (p=0.000 n=10+10)\nUncompressDigits-8 1.89GB/s ± 0% 2.33GB/s ± 1% +23.46% (p=0.000 n=9+10)\nUncompressTwain-8 1.19GB/s ± 1% 1.23GB/s ± 0% +3.43% (p=0.000 n=10+10)\nUncompressRand\n[…]\ne 37.4% of its literals\nhave lengths 17-48. In Twain and Pg1661, this is <4.1%.\n\nThis is faster than copying 32 bytes. At 64 bytes, digits gets faster\nstill whlie Twain and Pg1661 get slightly slower.",
"is_bot": false,
"headline": "internal/lz4block: Copy literals of <=48 bytes through XMM regs",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-01-30T19:44:15Z",
"body_truncated": true,
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{
"oid": "ce76f0ba2d92d1175f50c366059c0876bdc929ae",
"body": null,
"is_bot": false,
"headline": "internal/lz4block: Simplify portable decoder",
"author_name": "greatroar",
"author_login": "greatroar",
"committed_at": "2022-01-30T15:19:12Z",
"body_truncated": false,
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},
{
"oid": "677f6a5a5b2ebbfee631cb910a0ff9b0dd753523",
"body": "Updated example:",
"is_bot": false,
"headline": "Merge pull request #158 from satheshshiva/v4",
"author_name": "Pierre Curto",
"author_login": "pierrec",
"committed_at": "2022-01-13T09:33:21Z",
"body_truncated": false,
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"points": 8,
"status": "partial",
"details": [],
"max_points": 20
}
]
},
{
"key": "documentation",
"band": "moderate",
"name": "Documentation",
"note": null,
"notes": [],
"value": 60,
"inputs": {
"topics": [
"go",
"golang",
"lz4",
"lz4-frame"
],
"has_wiki": true,
"homepage": null,
"has_readme": true,
"has_docs_dir": false,
"has_description": true
},
"components": [
{
"key": "readme",
"name": "README",
"detail": null,
"points": 30,
"status": "met",
"details": [],
"max_points": 30
},
{
"key": "documentation_directory",
"name": "Documentation directory",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 25
},
{
"key": "documentation_homepage_site",
"name": "Documentation / homepage site",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 15
},
{
"key": "repository_description",
"name": "Repository description",
"detail": null,
"points": 10,
"status": "met",
"details": [],
"max_points": 10
},
{
"key": "topics",
"name": "Topics",
"detail": "4 topics",
"points": 10,
"status": "met",
"details": [
{
"code": "topics_count",
"params": {
"count": 4
}
}
],
"max_points": 10
},
{
"key": "wiki",
"name": "Wiki",
"detail": null,
"points": 10,
"status": "met",
"details": [],
"max_points": 10
}
]
}
],
"description": "Are baseline engineering and documentation practices in place?"
},
{
"key": "security",
"band": "at_risk",
"name": "Security",
"value": 47,
"weight": 0.16,
"metrics": [
{
"key": "security_posture",
"band": "at_risk",
"name": "Security posture",
"note": "Excluded from scoring (no data or not applicable): Packaging, Signed-Releases. Remaining weights renormalized.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
"packaging",
"signed_releases"
]
}
},
{
"code": "weights_renormalized",
"params": {}
}
],
"value": 34,
"inputs": {
"source": "openssf_scorecard",
"checks_evaluated": 16,
"scorecard_version": "v5.5.0",
"checks_inconclusive": 2,
"scorecard_aggregate": 3.4
},
"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 9 merged PRs checked by a CI test -- score normalized to 4",
"points": 1,
"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 9/11 approved changesets -- score normalized to 8",
"points": 6,
"status": "partial",
"details": [],
"max_points": 7.5
},
{
"key": "contributors",
"name": "Contributors",
"detail": "project has 18 contributing companies or organizations",
"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": "no update tool detected",
"points": 0,
"status": "missed",
"details": [],
"max_points": 7.5
},
{
"key": "fuzzing",
"name": "Fuzzing",
"detail": "project is not fuzzed",
"points": 0,
"status": "missed",
"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": "3 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 3",
"points": 2.2,
"status": "partial",
"details": [],
"max_points": 7.5
},
{
"key": "packaging",
"name": "Packaging",
"detail": "packaging workflow not detected",
"points": 0,
"status": "excluded",
"details": [
{
"code": "no_data",
"params": {}
}
],
"max_points": 5
},
{
"key": "pinned_dependencies",
"name": "Pinned-Dependencies",
"detail": "dependency not pinned by hash detected -- score normalized to 0",
"points": 0,
"status": "missed",
"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": "no releases found",
"points": 0,
"status": "excluded",
"details": [
{
"code": "no_data",
"params": {}
}
],
"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": "27 existing vulnerabilities detected",
"points": 0,
"status": "missed",
"details": [],
"max_points": 7.5
}
]
},
{
"key": "dependency_advisories",
"band": "excellent",
"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 12 resolved dependencies against OSV. 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": 12
}
},
{
"code": "advisories_repo_graph_caveat",
"params": {}
},
{
"code": "advisories_reachability",
"params": {}
}
],
"value": 100,
"inputs": {
"source": "osv",
"advisories": 0,
"affected_packages": 0,
"assessed_packages": 12,
"unassessed_packages": 0,
"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": "excellent",
"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": 12,
"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": "excellent",
"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"
],
"review_only_matches": 0,
"assessed_self_published_locations": 14
},
"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": 59,
"weight": 0,
"metrics": [
{
"key": "ai_agent_context",
"band": "at_risk",
"name": "Agent context & guidance",
"note": null,
"notes": [],
"value": 37,
"inputs": {
"has_llms_txt": false,
"legible_history_share": 0.69,
"agent_instruction_files": [],
"agent_instruction_max_bytes": null
},
"components": [
{
"key": "agent_instructions",
"name": "Agent instructions",
"detail": "no CLAUDE.md / AGENTS.md / editor rules",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_agent_instructions",
"params": {}
}
],
"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": "69 of 100 human commits state their intent (structured subject or explanatory body)",
"points": 36.8,
"status": "partial",
"details": [
{
"code": "legible_history",
"params": {
"legible": 69,
"sampled": 100
}
}
],
"max_points": 40
}
]
},
{
"key": "ai_verify_loop",
"band": "moderate",
"name": "Verify loop (build / test / typecheck)",
"note": null,
"notes": [],
"value": 60,
"inputs": {
"has_nix": false,
"has_tests": true,
"lockfiles": [
"go.sum"
],
"has_dockerfile": false,
"typed_language": true,
"bootstrap_files": [],
"has_devcontainer": false,
"has_linter_config": false,
"typecheck_configs": [],
"agent_commit_share": 0.02,
"toolchain_manifests": [
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"fuzz/go.mod",
"go.mod"
],
"dependency_bot_commit_share": 0
},
"components": [
{
"key": "one_command_bootstrap",
"name": "One-command bootstrap",
"detail": "cmd/lz4c/go.mod, fuzz/go.mod, go.mod (toolchain convention, no task runner)",
"points": 12.6,
"status": "partial",
"details": [
{
"code": "toolchain_convention",
"params": {
"files": "cmd/lz4c/go.mod, fuzz/go.mod, go.mod"
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}
],
"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": "Go (statically typed)",
"points": 11,
"status": "met",
"details": [
{
"code": "statically_typed_language",
"params": {
"language": "Go"
}
}
],
"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": "2 of the last 100 commits agent-authored or agent-credited",
"points": 4,
"status": "partial",
"details": [
{
"code": "agent_authored_commits",
"params": {
"count": 2,
"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 0",
"points": 0,
"status": "missed",
"details": [],
"max_points": 10
}
]
},
{
"key": "ai_code_legibility",
"band": "excellent",
"name": "Code legibility for models",
"note": null,
"notes": [],
"value": 100,
"inputs": {
"primary_language": "Go",
"largest_source_bytes": 12487,
"source_files_sampled": 36,
"oversized_source_files": 0
},
"components": [
{
"key": "type_checkable_code",
"name": "Type-checkable code",
"detail": "Go (statically typed)",
"points": 45,
"status": "met",
"details": [
{
"code": "statically_typed_language",
"params": {
"language": "Go"
}
}
],
"max_points": 45
},
{
"key": "manageable_file_sizes",
"name": "Manageable file sizes",
"detail": "0/36 source files over 60KB",
"points": 55,
"status": "met",
"details": [
{
"code": "oversized_source_files",
"params": {
"kb": 60,
"sampled": 36,
"oversized": 0
}
}
],
"max_points": 55
}
]
}
],
"description": "How well is the repo equipped to be developed and maintained with AI coding agents? An independent, experimental badge — weight 0.0, so it is surfaced on its own and does not affect the overall health score."
}
],
"metrics_version": "1.13.0"
},
"warnings": [
"Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token"
],
"report_type": "repository",
"generated_at": "2026-07-28T13:28:34.812321Z",
"schema_version": "0.27.0",
"badge_url": "https://raw.githubusercontent.com/inspect-software/badges/main/v1/p/pierrec/lz4.svg",
"full_name": "pierrec/lz4",
"license_state": "standard",
"license_spdx": "BSD-3-Clause"
}