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Each build pulls whatever the registry serves that day, so the image that ships can change without a commit, and last month's build cannot be reproduced. 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In a project with 97 recent contributors and at least 11 years of history, that is a question about one person's role rather than a fragile team — but it is the question to ask. "},{"id":"03.26","band":"adequate","layer":"deterministic","title":"The bus factor fell from 4 to 1","signal":"bus_factor_trend","weight":"corroborating","evidence":[{"ref":"bus factor by year","kind":"metric","detail":"1, 1, 1, 4"}],"observed":{"by_year_newest_first":[1,1,1,4]},"dimension":"03","rationale":"Year by year, newest first, the number of people who wrote half the changes was 1, 1, 1, 4. 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The shipped product may differ from what this report describes. Survey the release branch too. This was read from the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026) only; older history was not read.","context_why":"A note that does not affect this rating: notes like it are common in well-run projects."}],"signals_run":19,"conclusive_signals":13,"what_a_person_adds":[{"id":"04.32","kind":"H","where":"The data room and the team's record of estimates","question":"Can this team deliver the stated roadmap on the stated timeline?"},{"id":"04.31","kind":"H","where":"Budget and roadmap decisions","question":"Does leadership know about the debt, and is time budgeted to repay it?"},{"id":"04.33","kind":"H","where":"Revenue, customer and churn data","question":"Is the engineering shape consistent with the commercial story?"}]},{"id":"05","band":"adequate","name":"Security & Reliability Posture","coverage":"partial","findings":[{"id":"05.2","band":"adequate","layer":"deterministic","title":"None of the standard security guard rails are configured","signal":"security_guardrails","weight":"corroborating","evidence":[{"ref":"guardrail-scan","kind":"metric","detail":"checked 5 kinds of guard rail across 17,839 tracked files; 0 present"}],"observed":{},"dimension":"05","rationale":"There is no disclosure policy, no automated dependency updates, no named code owners and no pre-commit configuration. 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Answer lives in: the release you run, set against each fixed version.","context_why":"A note that does not affect this rating: it describes the project's advisory record, and no advisory in it is known to affect the surveyed commit."}],"signals_run":34,"conclusive_signals":21,"what_a_person_adds":[{"id":"05.43","kind":"H+","where":"The security owner","measured":"No threat model is in the tree of what looks like a running service.","question":"Does one exist elsewhere, and who owns it?"},{"id":"05.41","kind":"H","where":"Ticketing and chat","question":"What has actually broken, how often, and how badly?"},{"id":"05.42","kind":"H","where":"Reports in the data room","question":"What did external testing find, and was it fixed?"},{"id":"05.44","kind":"H","where":"Audit reports; policy files in the tree are not evidence","question":"What is the SOC 2, ISO 27001 or GDPR status, and where is the evidence?"}]},{"id":"06","band":"adequate","name":"Observability & Operations","coverage":"partial","findings":[{"id":"06.2","band":"adequate","layer":"deterministic","title":"No structured logging library is in use","signal":"structured_logging","weight":"corroborating","evidence":[{"ref":"logging-scan","kind":"metric","detail":"searched 13,535 files for 10 structured logging libraries; 0 matched"}],"observed":{},"dimension":"06","rationale":"Nothing references a structured logging library. 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elsewhere","signal":"feature_flags","observed":{"sdk_files":0,"evaluation_sites":7},"dimension":"06","conclusive":false},{"reason":"not assessed: this check needs the whole history, and only the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026) were read","signal":"active_contributors","observed":{"history_read":"the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026)"},"dimension":"03","conclusive":false},{"reason":"not assessed: this check needs the whole history, and only the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026) were read","signal":"knowledge_silos","observed":{"history_read":"the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026)"},"dimension":"03","conclusive":false},{"reason":"not assessed: this check needs the whole history, and only the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026) were read","signal":"drive_by_contributors","observed":{"history_read":"the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026)"},"dimension":"03","conclusive":false},{"reason":"not assessed: this check needs the whole history, and only the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026) were read","signal":"contributor_attrition","observed":{"history_read":"the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026)"},"dimension":"03","conclusive":false},{"reason":"more than one person changes the critical paths","signal":"critical_path_ownership","observed":{"authors":97,"sole_owned_areas":[]},"dimension":"03","conclusive":true},{"reason":"the second and third contributors are still active","signal":"second_contributor_attrition","observed":{"gone":[]},"dimension":"03","conclusive":true},{"reason":"the team is not shrinking","signal":"joiners_and_leavers","observed":{"left":5,"joined":14,"regular_last_year":27,"regular_prior_year":22},"dimension":"03","conclusive":true},{"reason":"a meaningful share of recent change carries evidence of review","signal":"merge_discipline","observed":{"merges":87,"window":"last 24 months","with_tracked":51,"with_reviewed":0,"reviewed_share":0.978,"commits_in_window":6042,"squashed_with_pr_ref":5817,"with_signed_off_other":11,"reviewed_share_all_time":0.578,"with_committed_by_other":5903},"dimension":"02","conclusive":true},{"reason":"CI configuration is present in the working tree","signal":"ci_presence","observed":{"count":25,"configs":[".github/workflows/ci-graalvm.yml",".github/workflows/ci-mcp.yml",".github/workflows/ci.yml",".github/workflows/e2e-agent.yml",".github/workflows/e2e-mcp.yml"]},"dimension":"02","conclusive":true},{"reason":"tests are present in a normal proportion to source","signal":"test_presence","observed":{"tests":4787,"source":10223,"test_ratio":0.468},"dimension":"02","conclusive":true},{"reason":"not assessed: this check needs the whole history, and only the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026) were read","signal":"release_cadence","observed":{"history_read":"the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026)"},"dimension":"02","conclusive":false},{"reason":"commit subjects generally carry content, in the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026)","signal":"conventional_commits","observed":{"sampled":47100,"history_read":"the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026)","low_content_share":0.032},"dimension":"02","conclusive":true},{"reason":"process scaffolding is present in the repository","signal":"branch_protection_hints","observed":{"present":["CI workflows","contribution guidance"]},"dimension":"02","conclusive":true},{"reason":"CI invokes a test runner","signal":"ci_runs_tests","observed":{"sample":[".github/workflows/ci-graalvm.yml",".github/workflows/ci-mcp.yml",".github/workflows/e2e-agent.yml"],"configs":25,"with_tests":12},"dimension":"02","conclusive":true},{"reason":"few tests are switched 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Java, the language the product is written in: this check's patterns read other languages only","signal":"outbound_timeouts","observed":{"languages_not_read":["Java"],"calls_without_timeout":0},"dimension":"05","conclusive":false},{"reason":"too few migrations to judge","signal":"migration_reversibility","observed":{"migrations":0},"dimension":"05","conclusive":false},{"reason":"no SQL is assembled from strings in product code","signal":"sql_from_strings","observed":{"files":0,"sites":0,"value_interpolated":0},"dimension":"05","conclusive":true},{"reason":"product code does not build shell commands from strings","signal":"shell_from_strings","observed":{"sites":0},"dimension":"05","conclusive":true},{"reason":"no code-executing deserialiser in product code","signal":"unsafe_deserialization","observed":{"sites":0},"dimension":"05","conclusive":true},{"reason":"no TLS verification is switched off in product 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API version is served, or none","signal":"api_versions_coexisting","observed":{"live":[],"versions_seen":[]},"dimension":"04","conclusive":false},{"reason":"few deprecations have outlived two years","signal":"deprecations_lingering","observed":{"older_than_two_years":2,"files_with_deprecations":38},"dimension":"04","conclusive":true},{"reason":"few dependencies were added and dropped within 60 days","signal":"dependency_churn","observed":{"dependencies_seen":45,"added_in_two_years":4,"removed_within_60_days":4},"dimension":"04","conclusive":true},{"reason":"the README's first screen states no end, move or freeze","signal":"repository_status","observed":{"statements":0},"dimension":"04","conclusive":true},{"reason":"nothing says development happens elsewhere","signal":"development_elsewhere","observed":{"no_pr_statements":0,"mirror_statements":0,"replayed_commit_share":0.0},"dimension":"02","conclusive":true},{"reason":"the root licence has not changed in the history read","signal":"licence_changes","observed":{"licence_versions":1,"unreleased_changes":0},"dimension":"05","conclusive":true},{"reason":"no directory carries a separate paid-edition licence","signal":"paid_edition","observed":{"directories":0},"dimension":"05","conclusive":true},{"reason":"releases keep pace with development","signal":"releases_stopped","observed":{"median_gap_days":88.0,"days_since_last_tag":242,"commits_last_90_days":955},"dimension":"04","conclusive":true},{"reason":"no file says one person maintains it","signal":"single_maintainer","observed":{"statements":0},"dimension":"03","conclusive":true},{"reason":"could not tell whether 6 published advisories affect the surveyed code: its version is only known to be at least 3.1.0","signal":"project_advisories","observed":{"sources":["OSV by commit","GitHub repository advisories","NVD"],"affecting":0,"exploited":0,"advisories":6,"version_from":"the newest release tag in the surveyed history, 37,815 commits before the surveyed commit","fix_unreleased":0,"sources_failed":[],"version_unknown":6,"high_or_critical":0,"surveyed_version":"3.1.0","affecting_newest_release":2},"dimension":"05","conclusive":false},{"reason":"no affecting advisory is on CISA's Known Exploited list","signal":"project_exploited","observed":{"exploited":0},"dimension":"05","conclusive":true}],"schema_version":"1","repository_says":[{"line":null,"path":null,"text":"Releases are cut from another branch than the one surveyed","finding":"04.62"},{"line":16,"path":".github/PULL_REQUEST_TEMPLATE.md","text":"states a policy on AI-generated contributions","phrase":null},{"line":17,"path":"README.md","text":"names OpenSSF"},{"line":319,"path":"README.md","text":"names CNCF"}],"surveyed_commit":{"says":"The newest release, 5.5.3, is not on the branch this survey read; the newest release on it is 3.1.0","kinds":["not the release line"],"advice":"Read this report as describing that commit, not the release users run. Survey the release branch or tag as well.","newest_release":{"sha":"8d35894433416ef249ebb6ea21f8a8749648e9b6","tag":"5.5.3"}},"provenance_disclosure":{"agents":["Claude","GitHub Copilot"],"recent":{"since":"2025-10-23","until":"2026-10-23","window":"the last 12 months","measures":"share of lines added in the last 12 months to 2026-10-23 by commits declaring an AI agent as co-author: the same floor as the all-time share, over a shorter window","confidence":"moderate","ai_line_share":0.0074,"total_commits":2919,"ai_commit_share":0.0151,"confidence_basis":["4% of non-merge commits carry any trailer at all","low trailer coverage: the convention may not be in consistent use","no widespread author/committer date divergence"],"declared_commits":44,"total_lines_added":584084,"declared_lines_added":4350},"window":"the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026)","excluded":"lockfiles, vendored and generated paths are excluded from both measurements so that code nobody wrote cannot move the share","measures":"share of lines added by commits declaring an AI agent as co-author, as a proportion of the lines added in the most recent 50,000 commits (5 Feb 2016 to 23 Oct 2026) only; older history was not read","confidence":"moderate","measurable":true,"ai_line_share":0.0009,"total_commits":47100,"affects_rating":false,"excluded_lines":56417,"ai_commit_share":0.0013,"confidence_basis":["2% of non-merge commits carry any trailer at all","low trailer coverage: the convention may not be in consistent use","no widespread author/committer date divergence"],"declared_commits":59,"total_lines_added":6461646,"surviving_ai_lines":null,"surviving_measures":"share of lines still present in the working tree that originate in an AI-declared commit; null unless the scan was run with --deep","commit_share_by_year":{"2016":0.0,"2017":0.0,"2018":0.0,"2019":0.0,"2020":0.0,"2021":0.0,"2022":0.0,"2023":0.0,"2024":0.0,"2025":0.019,"2026":0.0017},"declared_agent_names":["Claude","Claude Opus 5","Claude Sonnet 5","copilot-swe-agent[bot]"],"declared_lines_added":5681,"surviving_line_share":null,"floor_not_measurement":"This is a lower bound. It counts what the repository declares. Undeclared AI authorship is invisible here, and a single rebase removes the trailers this rests on. Absence of a declaration is absence of disclosure, not absence of AI authorship.","surviving_total_lines":null},"reliance":"An automated reading of a repository's code and its history up to one commit, with public advisory records. It may be wrong, it is not legal, financial, investment or security advice, and it does not replace diligence by a qualified person. It is provided for information: nobody may rely on it (Borehole's terms, section 3).","published_under_todays_rules":["Words about people are today's: bands rather than exact shares, dates or day counts, and what the history measured rather than why.","4 findings from checks Borehole's calibration found wrong more often than right are no longer published."]}