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Rework is normal and often healthy, but a rising ratio means an increasing share of the team's time is spent replacing code that already exists rather than building what does not. Whether that is deliberate repayment or churn is a question for the team.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"04.20","band":"adequate","layer":"deterministic","title":"Fixes are 54% of recent work, up from 33%","signal":"fix_share_trend","weight":"corroborating","evidence":[{"ref":"fix share by quarter","kind":"metric","detail":"52%, 56%, 45%, 33%, 30%, 30%, 32%, 29%"}],"observed":{"fix_share_by_quarter_newest_first":[0.52,0.56,0.45,0.33,0.3,0.3,0.32,0.29]},"dimension":"04","rationale":"In the last two quarters 54% of commits were fixes, against 33% in the quarters before. 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A deprecation is a promise to remove. Ask what still depends on these, and whether removing them is scheduled.","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":19,"conclusive_signals":14,"what_a_person_adds":[{"id":"04.11","kind":"H+","where":"The team","measured":"672 commits landed in the last year, against 1,766 the year before (-62%).","question":"Is that maintenance mode, a pivot, or fewer people working on it? The count looks the same for all three."},{"id":"04.34","kind":"H+","where":"The ML team and its run history","measured":"Experiment tracking is configured (wandb).","question":"Can the model that ships be tied to the run, data and code that produced it?"},{"id":"04.35","kind":"H+","where":"The ML team","measured":"No model card is in the tree.","question":"What is the model's intended use, what was it trained on, and where does it fail?"},{"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":"05.26","band":"adequate","layer":"deterministic","title":"38 locked dependencies have published vulnerabilities, 64 high or critical in what ships","signal":"known_vulnerabilities","weight":"corroborating","evidence":[{"ref":"llama-index-core/uv.lock","kind":"path","path":"llama-index-core/uv.lock","detail":"certifi 2026.7.22: GHSA-6q48-6c7w-9gw2 (critical), fixed in 2026.10.19"},{"ref":"llama-index-integrations/embeddings/llama-index-embeddings-autoembeddings/uv.lock","kind":"path","path":"llama-index-integrations/embeddings/llama-index-embeddings-autoembeddings/uv.lock","detail":"chromadb 1.5.9: GHSA-36p7-vc44-83pf (critical)"},{"ref":"llama-index-core/uv.lock","kind":"path","path":"llama-index-core/uv.lock","detail":"pillow 12.3.0: GHSA-332p-7hrc-92wf (critical), fixed in 13.0.0"}],"observed":{"advisories":157,"dependencies":778,"high_or_critical":86,"pinned_to_a_commit":0,"ecosystems_not_read":[],"vulnerable_packages":38,"set_aside_not_imported":0,"high_or_critical_shipping":64,"high_or_critical_not_shipped":{"dev":22}},"unproven":true,"dimension":"05","rationale":"38 of 778 locked dependencies match 157 published advisories in OSV, 86 of them rated high or critical. 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A project that publishes advisories is telling its users about its fixes, and the count and pace say how much security work it carries. Whether 1 of them are fixed in the code you ship could not be told from this history: its version is only known to be at least 0.14.25. 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":23,"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 331 files for 10 structured logging libraries; 0 matched"}],"observed":{},"dimension":"06","rationale":"Nothing references a structured logging library. Logs that are written to be read by a person are not searchable by a machine, which means incident response here is proportional to how well someone remembers the codebase rather than to what the tooling can find."},{"id":"06.8","band":"adequate","layer":"deterministic","title":"One request cannot be followed through the logs","signal":"correlation_ids","weight":"corroborating","evidence":[{"ref":"request ids","kind":"metric","detail":"no request id, correlation id or tracing found"}],"observed":{"tracing":false,"request_id_sites":0},"dimension":"06","rationale":"Nothing in the service carries a request or correlation id, and there is no tracing. When a customer reports a failure, the log lines that belong to their request cannot be picked out from everyone else's."},{"id":"06.9","band":"adequate","layer":"deterministic","title":"No error reporter is wired in","signal":"error_reporting","weight":"corroborating","context":true,"evidence":[{"ref":"error reporting","kind":"metric","detail":"no error reporter initialised"}],"observed":{"installed":[],"initialised":0,"config_files":0},"dimension":"06","rationale":"Nothing in the service initialises an error reporter (Sentry, Rollbar, Bugsnag, Honeybadger or an APM agent). An exception in production reaches a person only if someone is reading the logs, which usually means a customer reports it first.","context_why":"A note that does not affect this rating: notes like it are common in well-run projects."}],"signals_run":16,"conclusive_signals":11,"what_a_person_adds":[{"id":"06.19","kind":"H+","where":"The operations team","measured":"Nothing in the tree backs up or restores data.","question":"How is data backed up, and has a restore ever been rehearsed?"},{"id":"06.10","kind":"H+","where":"The alerting tool and the on-call rota","measured":"No alert rule is defined in the repository.","question":"Where are alerts defined, who receives them, and when did one last fire?"},{"id":"06.29","kind":"H","where":"Pager history and dashboard logs","question":"Are the dashboards opened, the alerts acknowledged and the pages answered?"},{"id":"06.30","kind":"H","where":"Production metrics","question":"Are the service-level objectives actually met?"},{"id":"06.31","kind":"H","where":"Pager exports and interviews","question":"Who carries the pager, and how often does it go off?"},{"id":"06.32","kind":"H","where":"Cloud billing and capacity plans","question":"What does it cost to run, and how much headroom is there?"}]},{"id":"07","band":"not assessable","name":"Fit with the Acquirer","coverage":"none","findings":[],"signals_run":0,"conclusive_signals":0,"what_a_person_adds":[{"id":"07.1","kind":"H+","question":"This is primarily a Python codebase. Does your engineering organisation already run Python in production, or would this be the first?"},{"id":"07.10","kind":"H+","question":"The bulk of this system sits in llama-index-integrations/, llama-index-core/, llama-index-utils/. Which of your existing systems would each of those have to absorb or replace?"},{"id":"07.2","kind":"H+","question":"The repository carries deployment configuration (llama-index-integrations/embeddings/llama-index-embeddings-elasticsearch/docker-compose.yml and 1 more). 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