The Go Cloud Development Kit (Go CDK): A library and tools for open cloud development in Go.
This report presents the forensic synthetic code analysis of google/go-cloud, a Go project with 9,910 GitHub stars. SynthScan v2.0 examined 88,642 lines of code across 530 source files, recording 559 pattern matches distributed across 4 syntactic categories. The overall adjusted score of 6.4 places this repository in the Low AI signal band.
The scanner applied 160+ deterministic lexical heuristics, multi-line block detectors, abstract syntax tree depth profilers, and a cross-file Jaccard similarity matrix to construct a statistically normalised synthetic code estimate. All matches are individually weighted by severity coefficient and contextual multiplier before summation, and the resulting headline score is temporally discounted to account for the repository's development history relative to the commercial emergence of large language model coding tooling (November 2022 onward).
Longitudinal tracking requires multiple scan runs. Once this repository is re-scanned after new commits land, this chart will visualise how the synthetic code signal evolves over time — enabling you to detect whether AI authorship is growing, stabilising, or being actively corrected by human engineers.
Classifies detected patterns by their diagnostic confidence and structural impact. CRITICAL patterns (coefficient 10) represent definitive synthetic signatures — hallucinated imports, explicit LLM attribution metadata — virtually never produced by human authors. HIGH (5) indicates strong structural tells such as cross-file repetition or cross-linguistic idioms. MEDIUM (2) covers recognisable conversational padding and AI-specific vocabulary. LOW (1) captures subtle indicators like tautological comments and generic boilerplate that require density to carry independent signal.
This horizontal bar chart decomposes the repository's raw synthetic code score by top-level directory, allowing you to pinpoint precisely which modules or components carry the highest AI authorship density. Directories with disproportionately high scores relative to their size warrant targeted manual review: concentrated AI signatures often trace back to mass-generated configuration layers, auto-ported test suites, LLM-scaffolded boilerplate classes, or entire subsystems authored under heavy copilot assistance. Use this view to prioritise your human code-review effort.
The scanner identified 559 distinct pattern matches across 4 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a statistically significant AI authorship indicator. 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 diagnostic confidence level (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — comment-context matches receive a ×1.5 weight because LLMs systematically over-annotate. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier as dense clusters constitute far stronger evidence of synthetic authorship than isolated hits.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | doc.go | 1 | // Copyright 2018 The Go Cloud Development Kit Authors | COMMENT |
| LOW | azure/azurecloud/azurecloud.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | azure/azuredb/azuredb.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/example_test.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/example_openkeeper_test.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/secrets.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/secrets.go | 21 | // # Errors | COMMENT |
| LOW | secrets/secrets_test.go | 1 | // Copyright 2019-2025 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/awskms/example_test.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/awskms/kms_test.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/awskms/kms.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/awskms/kms.go | 21 | // The default URL opener will use an AWS session with the default credentials | COMMENT |
| LOW | secrets/awskms/kms.go | 81 | // URLOpener opens AWS KMS URLs like "awskms://keyID" or "awskms:///keyID". | COMMENT |
| LOW | secrets/drivertest/drivertest.go | 1 | // Copyright 2018 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/driver/driver.go | 1 | // Copyright 2018 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/azurekeyvault/example_test.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/azurekeyvault/akv_test.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/azurekeyvault/akv_test.go | 41 | // | COMMENT |
| LOW | secrets/azurekeyvault/akv.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/azurekeyvault/akv.go | 21 | // For secrets.OpenKeeper, azurekeyvault registers for the scheme "azurekeyvault". | COMMENT |
| LOW | secrets/azurekeyvault/akv.go | 81 | type defaultDialer struct{} | COMMENT |
| LOW | secrets/localsecrets/example_test.go | 1 | // Copyright 2018 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/localsecrets/localsecrets_test.go | 1 | // Copyright 2018 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/localsecrets/localsecrets.go | 1 | // Copyright 2018 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/gcpkms/example_test.go | 1 | // Copyright 2018 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/gcpkms/kms_test.go | 1 | // Copyright 2018 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/gcpkms/kms.go | 1 | // Copyright 2018 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/gcpkms/kms.go | 21 | // The default URL opener will create a connection using use default | COMMENT |
| LOW | secrets/gcpkms/kms.go | 101 | } | COMMENT |
| LOW | secrets/hashivault/example_test.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/hashivault/localvault.sh | 1 | #!/usr/bin/env bash | COMMENT |
| LOW | secrets/hashivault/vault_test.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | secrets/hashivault/vault.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/escape/escape.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/escape/escape.go | 41 | // HexEscape returns s, with all runes for which shouldEscape returns true | COMMENT |
| LOW | internal/escape/escape.go | 61 | // In addition to whatever the caller wants escaped, always escape | COMMENT |
| LOW | internal/escape/escape_test.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/gcerr/gcerr_test.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/gcerr/gcerr.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/gcerr/gcerr.go | 101 | // ErrResourceExhausted means that some resource has been exhausted, typically because a service resource limit | COMMENT |
| LOW | internal/useragent/useragent.go | 1 | // Copyright 2018 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/useragent/useragent_test.go | 1 | // Copyright 2026 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/retry/retry_test.go | 1 | // Copyright 2018 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/retry/retry.go | 1 | // Copyright 2018 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/retry/retry.go | 21 | "time" | COMMENT |
| LOW | internal/releasehelper/releasehelper_test.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/releasehelper/releasehelper.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/website/listnewpkgs.sh | 1 | #!/usr/bin/env bash | COMMENT |
| LOW | internal/website/makeimports.sh | 1 | #!/usr/bin/env bash | COMMENT |
| LOW | internal/website/gatherexamples/gatherexamples.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/website/gatherexamples/gatherexamples.go | 21 | // | COMMENT |
| LOW | internal/website/gatherexamples/gatherexamples_test.go | 1 | // Copyright 2019 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/website/gatherexamples/run.sh | 1 | #!/usr/bin/env bash | COMMENT |
| LOW | internal/otel/trace_test.go | 1 | // Copyright 2025 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/otel/metrics.go | 1 | // Copyright 2019-2025 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/otel/trace.go | 1 | // Copyright 2019-2025 The Go Cloud Development Kit Authors | COMMENT |
| LOW | internal/docs/design.md | 241 | // inside foo, like Bucket or Subscription. | COMMENT |
| LOW | internal/docs/pubsub/design.md | 381 | // | COMMENT |
| LOW | internal/testing/runchecks.sh | 1 | #!/usr/bin/env bash | COMMENT |
| LOW | internal/testing/update_deps.sh | 1 | #!/usr/bin/env bash | COMMENT |
| 494 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | samples/guestbook/azure/main.tf | 33 | # Create a resource group | COMMENT |
| MEDIUM | samples/guestbook/azure/main.tf | 39 | # Create a Storage Account, container, and two blobs. | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | docstore/awsdynamodb/v2/dynamo_test.go | 47 | // Don't forget to change it back when done benchmarking. | COMMENT |
| LOW | .github/workflows/tests.yml | 26 | # When updating this, make sure to also update the | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | contrib/upgrade-dependency.sh | 5 | # Usage: | COMMENT |