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A log written by someone explaining their reasoning to a future reader does not look like this. The log is therefore weak evidence of intent, whatever the code is like.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"01.6","band":"adequate","layer":"deterministic","title":"agent/src/config/handler.rs is 6,250 lines, 71× this codebase's median file","signal":"oversized_modules","weight":"corroborating","context":true,"evidence":[{"ref":"line-count","kind":"path","path":"agent/src/config/handler.rs","detail":"6,250 lines (71× median)","line_end":6250,"line_start":1},{"ref":"line-count","kind":"path","path":"agent/src/ebpf/kernel/include/protocol_inference.h","detail":"4,910 lines (56× median)","line_end":4910,"line_start":1},{"ref":"line-count","kind":"path","path":"agent/src/config/config.rs","detail":"4,312 lines (49× median)","line_end":4312,"line_start":1},{"ref":"line-count","kind":"path","path":"agent/src/ebpf/user/socket.c","detail":"4,235 lines (48× median)","line_end":4235,"line_start":1},{"ref":"line-count","kind":"path","path":"agent/src/trident.rs","detail":"3,978 lines (45× median)","line_end":3978,"line_start":1}],"observed":{"largest":6250,"library":{"n":382,"share":67,"value":71.8,"cutoff":138.63,"material":false,"percentile":85},"threshold":1000,"files_over":78,"median_lines":87},"dimension":"01","rationale":"The median source file here is 87 lines. 78 files exceed 1,000 lines, the largest being 6,250. 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":"01.25","band":"adequate","layer":"deterministic","title":"1 base image floats: no version, or `latest`","signal":"build_reproducibility","weight":"corroborating","evidence":[{"ref":"server/Dockerfile","kind":"path","path":"server/Dockerfile","detail":"base image without a version","line_end":1,"line_start":1}],"observed":{"floating":1,"from_lines":2},"dimension":"01","rationale":"1 of 2 `FROM` lines in product Dockerfiles name an image without a version, or with `latest`. 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. Pin a version, or a digest."}],"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 2,461 product files.","question":"Where does the design live, and who holds it?"},{"id":"01.35","kind":"H+","where":"The team and the submodule owners","measured":"The repository pulls code in through git submodules (.gitmodules).","question":"A buyer receives pointers, not that code. Can every submodule be fetched without the team's credentials, and who owns each one?"},{"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":"strong","name":"Engineering Process & SDLC Maturity","coverage":"high","findings":[{"id":"02.6","band":"adequate","layer":"deterministic","title":"Almost no process scaffolding exists in the repository","signal":"branch_protection_hints","weight":"corroborating","context":true,"evidence":[{"ref":"process-scaffolding","kind":"metric","detail":"1 of 5 markers present across 3,028 tracked files"}],"observed":{},"dimension":"02","rationale":"Of five ordinary markers — CI workflows, CODEOWNERS, a pull-request template, pre-commit hooks, contribution guidance — 1 is present: CI workflows. Branch protection itself is a GitHub setting rather than a file, so this is a reading of proxies and not of the rules themselves. What it does establish is that the process is not written down anywhere a new engineer would find it.","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":16,"conclusive_signals":15,"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":"strong","name":"Organization & Key-Person Risk","coverage":"partial","findings":[],"signals_run":10,"conclusive_signals":10,"what_a_person_adds":[{"id":"03.29","kind":"H+","where":"The deal terms","measured":"103 people have committed here.","question":"Which of them are you acquiring, and which are you replacing?"},{"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? Commit times cannot say: git keeps no reliable local time."},{"id":"03.32","kind":"H","where":"Interviews","question":"Does the team want to stay after close?"},{"id":"03.33","kind":"H","where":"Time with the team","question":"How are decisions made and disagreements resolved?"}]},{"id":"04","band":"adequate","name":"Product & Engineering Maturity","coverage":"minimal","findings":[{"id":"04.3","band":"adequate","layer":"deterministic","title":"106 direct dependencies in a single manifest","signal":"dependency_sprawl","weight":"corroborating","evidence":[{"ref":"direct-dependencies","kind":"path","path":"server/go.mod","detail":"106 declared"},{"ref":"direct-dependencies","kind":"path","path":"cli/go.mod","detail":"8 declared"},{"ref":"direct-dependencies","kind":"path","path":"message/go.mod","detail":"1 declared"},{"ref":"direct-dependencies","kind":"path","path":"server/controller/cloud/kubernetes_gather/expand/go.mod","detail":"0 declared"}],"observed":{"set_aside":{"automation_test/requirements.txt":"not product code (test)"},"by_manifest":{"cli/go.mod":8,"server/go.mod":106,"message/go.mod":1,"server/libs/logger/blocker/go.mod":0,"server/controller/monitor/bill/go.mod":0,"server/controller/native_field/go.mod":0,"server/controller/http/appender/go.mod":0,"server/controller/cloud/platform/go.mod":0,"server/controller/monitor/license/go.mod":0,"server/ingester/config/configdefaults/go.mod":0,"server/controller/cloud/tencent/expand/go.mod":0,"server/controller/monitor/vtap/version/go.mod":0,"server/controller/genesis/store/sync/redis/go.mod":0,"server/controller/db/metadb/session/edition/go.mod":0,"server/controller/http/service/agentlicense/go.mod":0,"server/ingester/flow_log/log_data/dd_import/go.mod":0,"server/ingester/flow_log/log_data/sw_import/go.mod":0,"server/controller/db/metadb/migrator/edition/go.mod":0,"server/controller/http/service/configuration/go.mod":0,"server/querier/engine/clickhouse/packet_batch/go.mod":0,"server/controller/db/metadb/sqladapter/edition/go.mod":0,"server/controller/cloud/kubernetes_gather/expand/go.mod":0,"server/querier/app/prometheus/router/packet_adapter/go.mod":0,"server/querier/app/prometheus/service/packet_wrapper/go.mod":0,"server/querier/app/distributed_tracing/service/tracemap/go.mod":0,"server/querier/app/tracing-adapter/service/packet_service/go.mod":0}},"dimension":"04","rationale":"server/go.mod declares 106 direct dependencies. Each one is a maintenance obligation, a supply-chain surface and a potential licence question that transfers with the asset. The count says nothing about whether any given dependency was a good choice; it says how many such choices a buyer inherits."},{"id":"04.17","band":"adequate","layer":"deterministic","title":"Go 1.21 is past end of life","signal":"eol_runtime","weight":"corroborating","context":true,"evidence":[{"ref":"server/Dockerfile.builder","kind":"path","path":"server/Dockerfile.builder","detail":"Go 1.21, end of life 2024-08-13"}],"observed":{"pinned":["go 1.21"],"eol_as_of":"2026-09-24"},"dimension":"04","rationale":"The code is pinned to Go 1.21 (end of life 2024-08-13). None of these receives security fixes any more; the first stopped on 2024-08-13. Moving off an unsupported runtime is rarely a one-line change, so a buyer should ask whether the upgrade is planned and what it touches.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"04.19","band":"adequate","layer":"deterministic","title":"7% of bug fixes add or change a test","signal":"fixes_with_tests","weight":"corroborating","evidence":[{"ref":"fix commits touching tests","kind":"metric","detail":"46 of 614"}],"observed":{"fixes":614,"share":0.075,"with_tests":46},"dimension":"04","rationale":"Of 614 fixes in the last 24 months, 46 touched a test. A fix without the test that would have caught the bug can quietly come back, and the suite never learns from what went wrong."},{"id":"04.37","band":"adequate","layer":"deterministic","title":"API v1 and v2 have been served together for 52 months","signal":"api_versions_coexisting","weight":"corroborating","evidence":[{"ref":"roze/datasource/datasource.go","kind":"path","path":"roze/datasource/datasource.go","detail":"v1 since Nov 2020"},{"ref":"server/controller/router/domain.go","kind":"path","path":"server/controller/router/domain.go","detail":"v2 since Jun 2022"}],"observed":{"live":["v1","v2"],"versions_seen":["v1","v2"],"months_together":52},"dimension":"04","rationale":"v2 first appeared in Jun 2022, and v1 is still in the code 52 months later. Two versions mean two surfaces to secure, document and support. Ask who still calls the old one, and whether retiring it is planned."}],"signals_run":19,"conclusive_signals":14,"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 3,028 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. None of these is load-bearing on its own. Their collective absence says that security posture here is whatever the current team happens to remember to do, which is not a posture that survives the team changing."},{"id":"05.6","band":"adequate","layer":"deterministic","title":"2 Dockerfiles run the application as root","signal":"container_runs_as_root","weight":"corroborating","evidence":[{"ref":"no-USER-instruction","kind":"path","path":"server/Dockerfile","detail":"runs as root"},{"ref":"no-USER-instruction","kind":"path","path":"server/Dockerfile.builder","detail":"runs as root"}],"observed":{"rootful":2,"dockerfiles":2},"dimension":"05","rationale":"No USER instruction switches away from root, so the process runs with full privileges inside the container. It is a one-line fix and an ordinary expectation, which is why its absence is worth asking about: it usually says more about whether anyone has reviewed the deployment than about this container specifically."},{"id":"05.25","band":"adequate","layer":"deterministic","title":"1 environment file is committed","signal":"secrets_management_pattern","weight":"corroborating","context":true,"evidence":[{"ref":"manifests/deepflow-docker-compose/.env","kind":"path","path":"manifests/deepflow-docker-compose/.env","detail":"committed environment file"}],"observed":{"env_files":1},"dimension":"05","rationale":"manifests/deepflow-docker-compose/.env is tracked in git. Environment files are where credentials usually live, and committing one usually means nobody decided how secrets reach the running application. Whatever is in it is in the history for good. Check 05.1 says whether it holds anything credential-shaped.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"05.27","band":"adequate","layer":"deterministic","title":"The build runs third-party code it does not pin","signal":"supply_chain_pinning","weight":"corroborating","context":true,"evidence":[{"ref":".github/workflows/agent-build-rust-env.yml","kind":"path","path":".github/workflows/agent-build-rust-env.yml","detail":"action pinned by tag","line_end":28,"line_start":28},{"ref":".github/workflows/agent-build-rust-env.yml","kind":"path","path":".github/workflows/agent-build-rust-env.yml","detail":"action pinned by tag","line_end":33,"line_start":33},{"ref":".github/workflows/agent-build-rust-env.yml","kind":"path","path":".github/workflows/agent-build-rust-env.yml","detail":"download piped into a shell","line_end":21,"line_start":21}],"observed":{"action_refs":122,"pipe_to_shell":10,"unpinned_third_party":14},"dimension":"05","rationale":"14 third-party CI actions are referenced by a tag or branch rather than a commit, so they run whatever that tag points to on the day; 10 steps pipe a download straight into a shell. Tags have been moved to malicious commits in real supply-chain attacks, and a piped script is whatever the server returns that minute. Pinning to a commit is the fix, and it is small.","context_why":"A note that does not affect this rating: notes like it are common in well-run projects."},{"id":"05.13","band":"adequate","layer":"deterministic","title":"7 outbound calls can wait forever","signal":"outbound_timeouts","weight":"corroborating","context":true,"evidence":[{"ref":"agent/src/flow_generator/protocol_logs/mq/kafka-apis.py","kind":"path","path":"agent/src/flow_generator/protocol_logs/mq/kafka-apis.py","detail":"outbound call without a timeout","line_end":17,"line_start":17},{"ref":"agent/src/flow_generator/protocol_logs/mq/kafka-apis.py","kind":"path","path":"agent/src/flow_generator/protocol_logs/mq/kafka-apis.py","detail":"outbound call without a timeout","line_end":40,"line_start":40},{"ref":"server/controller/http/service/rebalance/traffic.go","kind":"path","path":"server/controller/http/service/rebalance/traffic.go","detail":"outbound call without a timeout","line_end":663,"line_start":663}],"observed":{"calls_without_timeout":7},"dimension":"05","rationale":"7 HTTP calls use a client with no timeout (Python `requests` without `timeout=`, or Go's default client). When a dependency slows down, each one holds a worker until the connection gives up, and enough of them take the service down with the dependency.","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":"1 SQL statement built from strings","signal":"sql_from_strings","weight":"corroborating","context":true,"evidence":[{"ref":"server/ingester/prometheus/dbwriter/prometheus_writer.go","kind":"path","path":"server/ingester/prometheus/dbwriter/prometheus_writer.go","detail":"SQL built from a string","line_end":131,"line_start":131}],"observed":{"files":1,"sites":1,"value_interpolated":0},"dimension":"05","rationale":"1 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":"05.34","band":"adequate","layer":"deterministic","title":"2 of 2 Kubernetes workloads declare no resource limits","signal":"resource_limits","weight":"corroborating","context":true,"evidence":[{"ref":"agent/docker/deepflow-agent-ds.yaml","kind":"path","path":"agent/docker/deepflow-agent-ds.yaml","detail":"workload with no limits"},{"ref":"agent/docker/deepflow-agent_test.yaml","kind":"path","path":"agent/docker/deepflow-agent_test.yaml","detail":"workload with no limits"}],"observed":{"workloads":2,"without_limits":2},"dimension":"05","rationale":"2 workload manifests set no CPU or memory limits. One pod that leaks memory or spins can starve everything else on its node, and the scheduler cannot plan capacity for what it cannot see.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"05.26","band":"adequate","layer":"deterministic","title":"27 locked dependencies have published vulnerabilities, 2 high or critical in what ships","signal":"known_vulnerabilities","weight":"corroborating","evidence":[{"ref":"cli/go.mod","kind":"path","path":"cli/go.mod","detail":"google.golang.org/grpc v1.62.1: GHSA-p77j-4mvh-x3m3 (critical), fixed in 1.79.3"},{"ref":"agent/Cargo.lock","kind":"path","path":"agent/Cargo.lock","detail":"windows 0.30.0: GHSA-x4mq-m75f-mx8m (critical), fixed in 0.32.0"},{"ref":"server/go.mod","kind":"path","path":"server/go.mod","detail":"github.com/prometheus/prometheus v0.36.2: GHSA-8rm2-7qqf-34qm (high), fixed in 0.311.3"}],"observed":{"advisories":47,"dependencies":862,"high_or_critical":6,"pinned_to_a_commit":0,"ecosystems_not_read":[],"vulnerable_packages":27,"set_aside_not_imported":46,"high_or_critical_shipping":2},"unproven":true,"dimension":"05","rationale":"27 of 862 locked dependencies match 47 published advisories in OSV, 6 of them rated high or critical. A lockfile says which version is installed, not whether the flawed code is reachable from this product, so each needs a look. Most are fixed by an upgrade, and the advisory names the version. This lockfile pins development tools alongside what ships and does not say which is which, so some of these may never reach a user."},{"id":"05.45","band":"adequate","layer":"deterministic","title":"5 workload settings give a container the host","signal":"privileged_workloads","weight":"corroborating","evidence":[{"ref":"agent/docker/deepflow-agent-ds.yaml","kind":"path","path":"agent/docker/deepflow-agent-ds.yaml","detail":"privileged or host namespace","line_end":20,"line_start":20},{"ref":"agent/docker/deepflow-agent-ds.yaml","kind":"path","path":"agent/docker/deepflow-agent-ds.yaml","detail":"privileged or host namespace","line_end":26,"line_start":26},{"ref":"agent/docker/deepflow-agent_test.yaml","kind":"path","path":"agent/docker/deepflow-agent_test.yaml","detail":"privileged or host namespace","line_end":29,"line_start":29}],"observed":{"sites":5,"behind_a_setting_or_built_here":0},"unproven":true,"dimension":"05","rationale":"5 places in the deployment configuration run a container privileged or in the host's network, process or IPC namespace. A compromise of that container is a compromise of the machine, and most acquirers' security reviews block it. Node agents (network, storage, monitoring) are excluded."}],"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":"strong","name":"Observability & Operations","coverage":"partial","findings":[{"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":10,"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 Go codebase, with Rust alongside (18% of source files). Does your engineering organisation already run Go in production, or would this be the first?"},{"id":"07.10","kind":"H+","question":"The bulk of this system sits in server/, agent/, manifests/. 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 (agent/docker/DockerfileToFix-aarch64.build and 14 more). Does that match your deployment and on-call model, or does it need rehosting first?"},{"id":null,"kind":"H+","question":"What is your tolerance for the findings above remaining unaddressed for the first two quarters after close, given everything else that will compete for this team's time?"},{"id":"07.11","kind":"H","where":"Your architecture","question":"Which of these systems duplicate yours, and which get retired?"},{"id":"07.12","kind":"H","where":"The engagement","question":"What will integration cost, and in what order?"},{"id":"07.13","kind":"H","where":"Your org design","question":"Where does the team land in your organisation, and who reports to whom?"},{"id":"07.14","kind":"H","where":"Deal terms","question":"Are there earn-outs, retention packages or contractor IP to assign?"},{"id":"07.15","kind":"H","where":"Customer contracts","question":"Do customer contracts limit hosting, regions or vendors?"}],"not_assessable_reason":"structurally not assessable from a 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