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Size is not a defect on its own — some problems genuinely live in one place — but these are where merge conflicts, review fatigue and single-owner knowledge concentrate, and they are the first thing that slows an inheriting engineer down.","context_why":"A note that does not affect this rating: measured against its own codebase's median, it is below the 85th percentile of 382 surveyed projects' largest files, where this check begins to count."},{"id":"01.7","band":"adequate","layer":"deterministic","title":"6% of code blocks appear verbatim in more than one file","signal":"duplicated_blocks","weight":"corroborating","context":true,"evidence":[{"ref":"duplicated-block","kind":"metric","detail":"identical 8-line block in 10 files: jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/files/CsvFileInput.tsx, jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/files/ExcelFileInput.tsx, jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/files/JsonFileInput.tsx"},{"ref":"duplicated-block","kind":"metric","detail":"identical 8-line block in 10 files: jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/files/CsvFileInput.tsx, jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/files/ExcelFileInput.tsx, jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/files/JsonFileInput.tsx"},{"ref":"duplicated-block","kind":"metric","detail":"identical 8-line block in 8 files: jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/files/CsvFileInput.tsx, jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/files/ExcelFileInput.tsx, jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/files/ParquetFileInput.tsx"},{"ref":"duplicated-block","kind":"metric","detail":"identical 8-line block in 8 files: jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/files/ExcelFileInput.tsx, jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/files/JsonFileInput.tsx, jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/files/ParquetFileInput.tsx"},{"ref":"duplicated-block","kind":"metric","detail":"identical 8-line block in 7 files: jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/databases/BigQueryInput.tsx, jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/databases/MySQLInput.tsx, jupyterlab-amphi/packages/pipeline-components-core/src/components/inputs/databases/ODBCInput.tsx"}],"observed":{"share":0.0557,"distinct_blocks":32543,"duplicated_blocks":1813},"dimension":"01","rationale":"1,813 distinct 8-line blocks appear in two or more files. Copy-paste is the cheapest thing a generator does and among the more expensive things to inherit: a fix has to be applied everywhere the block landed, and nothing in the repository records where that is. Tests, fixtures and documentation examples are excluded — those repeat by design — so this is duplication in code that ships. Blocks are matched after normalising whitespace and only across different files.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."}],"signals_run":11,"conclusive_signals":10,"what_a_person_adds":[{"id":"01.38","kind":"H+","where":"The team","measured":"No architecture or design document is in the tree, across 685 product files.","question":"Where does the design live, and who holds it?"},{"id":"01.39","kind":"H","where":"Your architects, with the product roadmap","question":"Is the architecture right for the next three years of the product?"},{"id":"01.40","kind":"H","where":"The team's reasoning at the time","question":"Were the home-grown components reasonable choices when they were made, and are they now?"}]},{"id":"02","band":"adequate","name":"Engineering Process & SDLC Maturity","coverage":"high","findings":[{"id":"02.3","band":"adequate","layer":"deterministic","title":"Tests are absent or token","signal":"test_presence","weight":"corroborating","evidence":[{"ref":"test-file-ratio","kind":"metric","detail":"0 test files / 267 source files"}],"observed":{"tests":0,"source":267,"test_ratio":0.0},"unproven":true,"dimension":"02","rationale":"0 test files against 267 source files (0.0%). This does not measure whether the tests are good, only whether enough of them exist for the codebase to be changed safely by someone who did not write it — which is exactly the situation after an acquisition."}],"signals_run":16,"conclusive_signals":14,"what_a_person_adds":[{"id":"02.32","kind":"H","where":"The code host's pull request data","question":"Is review real or a rubber stamp? Comment depth and time to approve need the pull request history."},{"id":"02.38","kind":"H","where":"The issue tracker: backlog, sprint history, estimate accuracy","question":"Is delivery planned and measured, or heroic?"},{"id":"02.37","kind":"H","where":"Tickets, chat and postmortems","question":"How are incidents run, reviewed and learned from?"}]},{"id":"03","band":"significant findings","name":"Organization & Key-Person Risk","coverage":"partial","findings":[{"id":"03.1","band":"significant findings","layer":"deterministic","title":"Bus factor 1: recent work is concentrated in one contributor","signal":"contributor_concentration","weight":"corroborating","evidence":[{"ref":"git shortlog -sn","kind":"metric","detail":"last 24 months: top author more than half of 324 commits; bus factor 1; 13 authors"}],"observed":{"years":2.4,"window":"last 24 months","authors":13,"top_share":"more than half","bus_factor":1,"authors_in_window":13,"top_share_all_time":"more than half","bus_factor_all_time":1},"dimension":"03","rationale":"In the last 24 months, one contributor authored more than half of 324 non-merge commits among 13 authors; across all history, more than half of 445. This is the single most expensive thing to discover after closing, and the repository cannot tell you whether that person is part of the transaction."},{"id":"03.3","band":"adequate","layer":"deterministic","title":"1 of 3 major areas has only ever had one author","signal":"knowledge_silos","weight":"corroborating","context":true,"evidence":[{"ref":"sole-author","kind":"path","path":"amphi-scheduler/","detail":"1,024 lines added"}],"observed":{},"dimension":"03","rationale":"Across 13 contributors, 1 substantial top-level area has been touched by exactly one person. The headline bus factor does not show this: a team can look well spread in aggregate and still have subsystems that stop moving the day one person stops working on them. For these areas, ask who else can change them today.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."}],"signals_run":10,"conclusive_signals":8,"what_a_person_adds":[{"id":"03.29","kind":"H+","where":"The deal terms","measured":"One contributor authored more than half of the commits in this history.","question":"Is that person part of the transaction, and for how long after it?"},{"id":"03.28","kind":"H","where":"The team; review history only suggests candidates","question":"Who mentors whom, and would that survive a departure?"},{"id":"03.30","kind":"H","where":"Recruiting data and the org chart","question":"Can the team grow, and who stands behind the top three contributors?"},{"id":"03.31","kind":"H","where":"HR data","question":"Is the seniority mix sound, and will pay survive your salary bands?"},{"id":"03.14","kind":"H","where":"Interviews and on-call history","question":"Is the pace sustainable? 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That matters twice over in a transaction: the thing being bought cannot be reproduced exactly, and a compromised upstream release arrives without anyone choosing to take it.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"05.20","band":"adequate","layer":"deterministic","title":"2 SQL statements built from strings","signal":"sql_from_strings","weight":"corroborating","context":true,"evidence":[{"ref":"jupyterlab-amphi/packages/pipeline-components-core/src/components/transforms/join/AdvancedJoin.tsx","kind":"path","path":"jupyterlab-amphi/packages/pipeline-components-core/src/components/transforms/join/AdvancedJoin.tsx","detail":"SQL built from a string","line_end":170,"line_start":170},{"ref":"jupyterlab-amphi/packages/pipeline-components-core/src/components/transforms/join/AdvancedJoin.tsx","kind":"path","path":"jupyterlab-amphi/packages/pipeline-components-core/src/components/transforms/join/AdvancedJoin.tsx","detail":"SQL built from a string","line_end":173,"line_start":173}],"observed":{"files":1,"sites":2,"value_interpolated":0},"dimension":"05","rationale":"2 places in product code build SQL by formatting or joining strings rather than passing parameters. In each, what the code shows going in is a table or column name, a constant, or something the line does not show, not a request's value. Ask whether any value reaches these strings, rather than a parameter.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"05.21","band":"adequate","layer":"deterministic","title":"3 shell commands built from strings","signal":"shell_from_strings","weight":"corroborating","context":true,"evidence":[{"ref":"jupyterlab-amphi/packages/pipeline-components-local/src/components/inputs/system/SystemInformation.tsx","kind":"path","path":"jupyterlab-amphi/packages/pipeline-components-local/src/components/inputs/system/SystemInformation.tsx","detail":"command run through a shell","line_end":66,"line_start":66},{"ref":"jupyterlab-amphi/packages/pipeline-components-local/src/components/inputs/system/SystemInformation.tsx","kind":"path","path":"jupyterlab-amphi/packages/pipeline-components-local/src/components/inputs/system/SystemInformation.tsx","detail":"command run through a shell","line_end":71,"line_start":71},{"ref":"jupyterlab-amphi/packages/pipeline-components-local/src/components/inputs/system/SystemInformation.tsx","kind":"path","path":"jupyterlab-amphi/packages/pipeline-components-local/src/components/inputs/system/SystemInformation.tsx","detail":"command run through a shell","line_end":76,"line_start":76}],"observed":{"sites":3},"dimension":"05","rationale":"3 places run a command through a shell (`shell=True`, `os.system`, `exec` with a template) rather than passing arguments. Where any part comes from outside, it is command injection. Ask where each one's input comes from.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"05.48","band":"adequate","layer":"deterministic","title":"11 places insert HTML from a variable without sanitising it","signal":"unsafe_html","weight":"corroborating","context":true,"evidence":[{"ref":"jupyterlab-amphi/packages/pipeline-console/src/logconsole.tsx","kind":"path","path":"jupyterlab-amphi/packages/pipeline-console/src/logconsole.tsx","detail":"HTML from a variable","line_end":165,"line_start":165},{"ref":"jupyterlab-amphi/packages/pipeline-console/src/logconsole.tsx","kind":"path","path":"jupyterlab-amphi/packages/pipeline-console/src/logconsole.tsx","detail":"HTML from a variable","line_end":177,"line_start":177},{"ref":"jupyterlab-amphi/packages/pipeline-console/src/logconsole.tsx","kind":"path","path":"jupyterlab-amphi/packages/pipeline-console/src/logconsole.tsx","detail":"HTML from a variable","line_end":196,"line_start":196}],"observed":{"sites":11},"dimension":"05","rationale":"11 places set HTML from a value that is neither a literal nor passed through a sanitiser. Where the value can come from a user, that is stored cross-site scripting, and it is the first thing a buyer's security review looks for in a frontend.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"05.66","band":"adequate","layer":"deterministic","title":"The licence is Elastic-2.0: source available, not open source","signal":"license_grant_unclear","weight":"corroborating","context":true,"evidence":[{"ref":"LICENSE","kind":"path","path":"LICENSE","detail":"35 lines, Elastic-2.0","line_end":3,"line_start":1}],"observed":{"path":"LICENSE","named":true,"identified":"Elastic-2.0","source_available":true},"dimension":"05","rationale":"LICENSE grants Elastic-2.0: source available, not open source; offering it as a managed service is not allowed. The reading comes from the licence's own title and clauses. Whether the terms fit the buyer's intended use, and whether any paid licence transfers with the code, is a question for counsel and the licensor.","context_why":"A note that does not affect this rating: it names the project's licence, a fact for the first screen rather than a weakness."}],"signals_run":34,"conclusive_signals":26,"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":"06.1","band":"adequate","layer":"deterministic","title":"No telemetry or error reporting is wired in anywhere","signal":"telemetry_presence","weight":"corroborating","evidence":[{"ref":"telemetry-scan","kind":"metric","detail":"searched 356 tracked text files for 16 known instrumentation libraries; manifests for metrics, tracing and error-reporting families; locked dependencies for the packages that emit; 0 matched"}],"observed":{},"dimension":"06","rationale":"None of 356 readable files references an instrumentation, metrics or error-reporting library. If this system is in production, nobody learns that it broke from the system itself — they learn it from a customer. That is a reliability finding before it is an observability one."},{"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 356 files for 10 structured logging libraries; 0 matched"}],"observed":{},"dimension":"06","rationale":"Nothing references a structured logging library. 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