Progressive delivery Kubernetes operator (Canary, A/B Testing and Blue/Green deployments)
This report summarizes scanner evidence for fluxcd/flagger, a Go project with 5,426 GitHub stars. SynthScan examined 109,498 lines of code across 725 source files, recording 401 pattern matches distributed across 3 syntactic categories. The legacy adjusted pattern signal is 2.8 (Low pattern signal); it is not an authorship estimate.
Use the findings to ask whether maintainers can explain intent, verify dependencies, simplify unnecessary scaffolding, and focus review effort. Risk Payload v1 adds ownership, supply-chain, over-engineering, and review-effort vectors when available. These are prompts for human verification, not probabilities, security findings, or measured maintenance costs.
Use each vector to guide manual verification of the underlying findings.
Payload schema: 1.0.0 · Engine: 2.0.0 · Scoring: heuristic-density-v1 · Scan date: 2026-10-31.
Can maintainers explain intent, assumptions, and trade-offs? 400 finding(s).
Are imports declared and package/API names verified? 1 finding(s).
Are wrappers, guards, and repeated structures necessary? 0 finding(s).
Which changes need focused human review? 401 finding(s).
This chart tracks the legacy adjusted pattern score across scan runs. Changes can reflect source changes, scan coverage, or detector/scoring versions; they do not measure AI adoption or prove that a team refactored code. Compare runs only when their scoring versions are compatible. The dashed line tracks the raw pattern-hit count.
Groups findings by configured severity weight. Severity is not a confidence estimate, security rating, or proof that a package is missing. Verify imports against the project's manifests and inspect each finding in its local design context.
This horizontal bar chart shows where configured pattern scores accumulate across directories. Treat the bars as locations to inspect, not as evidence of authorship or code quality. Use the file-level findings to decide whether a directory needs a focused ownership, dependency, complexity, or review check.
The scanner identified 401 distinct pattern matches across 3 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a detector match to inspect in context. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.
Reading the findings table: The Severity column indicates the configured finding weight (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — legacy comment-context matches receive a ×1.5 score weight. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier under the legacy scoring model.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | README.md | 101 | # define the canary analysis timing and KPIs | COMMENT |
| LOW | charts/flagger/values.yaml | 81 | enabled: false | COMMENT |
| LOW | charts/flagger/values.yaml | 101 | # name: msteams | COMMENT |
| LOW | hack/verify-codegen.sh | 1 | #!/usr/bin/env bash | COMMENT |
| LOW | docs/gitbook/usage/how-it-works.md | 361 | # promotion increment step | COMMENT |
| LOW | pkg/apis/flagger/v1beta1/canary.go | 121 | COMMENT | |
| LOW | pkg/apis/flagger/v1beta1/canary.go | 141 | // +optional | COMMENT |
| LOW | pkg/apis/flagger/v1beta1/canary.go | 161 | COMMENT | |
| LOW | pkg/apis/flagger/v1beta1/canary.go | 181 | // Gateways that the HTTPRoute needs to attach itself to. | COMMENT |
| LOW | pkg/apis/flagger/v1beta1/canary.go | 321 | CookieName string `json:"cookieName,omitempty"` | COMMENT |
| LOW | pkg/apis/flagger/v1beta1/status.go | 41 | // CanaryPhaseInitializing means the canary initializing is underway | COMMENT |
| LOW | pkg/apis/smi/v1alpha1/traffic_split.go | 21 | metav1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"` | COMMENT |
| LOW | pkg/apis/apisix/v2/types.go | 81 | ServicePort intstr.IntOrString `json:"servicePort" yaml:"servicePort"` | COMMENT |
| LOW | pkg/apis/apisix/v2/types.go | 101 | Methods []string `json:"methods,omitempty" yaml:"methods,omitempty"` | COMMENT |
| LOW | pkg/apis/apisix/v2/types.go | 121 | NginxVars []ApisixRouteHTTPMatchExpr `json:"exprs,omitempty" yaml:"exprs,omitempty"` | COMMENT |
| LOW | pkg/apis/apisix/v2/types.go | 221 | // ApisixRouteStreamBackend represents a TCP backend (a Kubernetes Service). | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 21 | // addressed. Each routing rule defines matching criteria for traffic of a specific | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 41 | // | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 61 | // ``` | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 81 | // - name: v2 | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 101 | // interpreted as "reviews.default.svc.cluster.local", irrespective of | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 121 | // gateways and sidecars, specify `mesh` as one of the gateway names. | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 141 | // in the platform's service registry (e.g., Kubernetes services, Consul | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 161 | // metadata: | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 181 | // subset: v2 | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 201 | // host: reviews # interpreted as reviews.foo.svc.cluster.local | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 221 | // | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 241 | // | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 261 | // - number: 80 | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 281 | // | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 301 | // within the mesh. The subset must be defined in a corresponding | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 321 | // is matched if any one of the match blocks succeed. | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 341 | Timeout string `json:"timeout,omitempty"` | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 401 | // rule to be applied to the HTTP request. For example, the following | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 421 | // - destination: | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 441 | COMMENT | |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 461 | // | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 481 | // | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 501 | // at the top of the VirtualService (if any) are overridden. The gateway match is | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 561 | COMMENT | |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 581 | // sourceSubnet: "172.17.16.0/24" | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 601 | } | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 621 | // One or more labels that constrain the applicability of a rule to | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 641 | // metadata: | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 661 | // this value. | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 681 | // prefix: /ratings | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 701 | // | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 721 | // retryOn: gateway-error,connect-failure,refused-stream | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 741 | // Describes the Cross-Origin Resource Sharing (CORS) policy, for a given | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 761 | // subset: v1 | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 801 | // (not the preflight) using credentials. Translates to | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 821 | Abort *InjectAbort `json:"abort,omitempty"` | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 841 | // - destination: | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 861 | // (-- Add a delay (based on an exponential function) before forwarding | COMMENT |
| LOW | pkg/apis/istio/v1beta1/virtual_service.go | 881 | // host: ratings | COMMENT |
| LOW | pkg/apis/istio/v1beta1/doc.go | 1 | // Api versions allow the api contract for a resource to be changed while keeping | COMMENT |
| LOW | pkg/apis/istio/v1beta1/destination_rule.go | 21 | // balancing pool. For example, a simple load balancing policy for the | COMMENT |
| LOW | pkg/apis/istio/v1beta1/destination_rule.go | 41 | // pods) with labels (version:v3). | COMMENT |
| LOW | pkg/apis/istio/v1beta1/destination_rule.go | 61 | // simple: ROUND_ROBIN | COMMENT |
| LOW | pkg/apis/istio/v1beta1/destination_rule.go | 81 | // portLevelSettings: | COMMENT |
| 339 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | pkg/metrics/providers/externalmetrics.go | 128 | // Adding a dummy protocol so we can leverage url.Parse for parsing the query string, easily extracting the path and qu | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | pkg/metrics/providers/externalmetrics_test.go | 81 | BearerToken: "fake-token", | CODE |