High performance, minimalist Go web framework
This report summarizes scanner evidence for labstack/echo, a Go project with 32,787 GitHub stars. SynthScan examined 49,193 lines of code across 137 source files, recording 74 pattern matches distributed across 3 syntactic categories. The legacy adjusted pattern signal is 1.6 (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? 74 finding(s).
Are imports declared and package/API names verified? 0 finding(s).
Are wrappers, guards, and repeated structures necessary? 0 finding(s).
Which changes need focused human review? 74 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 74 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 | server.go | 41 | // Listener is used to start server with the custom listener. | COMMENT |
| LOW | response.go | 81 | // See [http.Flusher](https://golang.org/pkg/net/http/#Flusher) | COMMENT |
| LOW | router_test.go | 1021 | COMMENT | |
| LOW | router_test.go | 1041 | // | | | | COMMENT |
| LOW | router_test.go | 1121 | // Request for "/a/c/f" should match "/:e/c/f" | COMMENT |
| LOW | router_test.go | 3521 | // 1.2 `test` (static) ID=2 | COMMENT |
| LOW | rfc9457.go | 41 | } | COMMENT |
| LOW | renderer.go | 1 | // SPDX-License-Identifier: MIT | COMMENT |
| LOW | httperror.go | 61 | // This function is useful for middleware and handlers that need to figure out the HTTP status | COMMENT |
| LOW | group.go | 181 | return g.Add(http.MethodGet, path, handler, middleware...) | COMMENT |
| LOW | ip.go | 281 | // is used. Surrounding brackets (for IPv6) are stripped. | COMMENT |
| LOW | context.go | 201 | // | COMMENT |
| LOW | context.go | 221 | // See: | COMMENT |
| LOW | context.go | 621 | // JSONPretty sends a pretty-print JSON with status code. | COMMENT |
| LOW | bind.go | 21 | type Binder interface { | COMMENT |
| LOW | echo.go | 61 | "syscall" | COMMENT |
| LOW | echo.go | 261 | // Logger is the slog logger instance used for application-wide structured logging. | COMMENT |
| LOW | echo.go | 281 | // Supports os.DirFS, embed.FS, and custom implementations. | COMMENT |
| LOW | echo.go | 301 | // Can be replaced with faster alternatives like jsoniter or sonic. | COMMENT |
| LOW | echo.go | 321 | COMMENT | |
| LOW | echo.go | 441 | COMMENT | |
| LOW | echo.go | 581 | // router with optional route-level middleware. Panics on error. | COMMENT |
| LOW | echo.go | 641 | // | COMMENT |
| LOW | echo.go | 841 | err = e.preChain(c) | COMMENT |
| LOW | binder_generic.go | 21 | // It can be a standard Go time layout string or one of the special Unix time layouts. | COMMENT |
| LOW | binder_generic.go | 41 | // TimeLayout constants for parsing Unix timestamps in different precisions. | COMMENT |
| LOW | binder_generic.go | 101 | // Empty String Handling: | COMMENT |
| LOW | binder_generic.go | 201 | COMMENT | |
| LOW | binder_generic.go | 281 | } | COMMENT |
| LOW | binder_generic.go | 341 | return result, nil | COMMENT |
| LOW | binder_generic.go | 361 | // - echo.BindUnmarshaler interface | COMMENT |
| LOW | binder_generic.go | 381 | // - int64 | COMMENT |
| LOW | router.go | 21 | // - Router.Route must handle a Context whose PathValues capacity is smaller than the maximum path parameter count | COMMENT |
| LOW | router.go | 101 | // Despite its historical name, true selects the decoded req.URL.Path. | COMMENT |
| LOW | router.go | 901 | // See https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/OPTIONS | COMMENT |
| LOW | binder.go | 1261 | } | COMMENT |
| LOW | binder.go | 1281 | return b.unixTime(sourceParam, dest, false, time.Millisecond) | COMMENT |
| LOW | binder.go | 1301 | // Note: | COMMENT |
| LOW | middleware/csrf.go | 21 | // We know that the client is using a browser that supports Sec-Fetch-Site header, so when the form is submitted in | COMMENT |
| LOW | middleware/csrf.go | 41 | // - `same-site` same registrable domain (subdomain and/or different port) | COMMENT |
| LOW | middleware/cors.go | 21 | // AllowOrigins determines the value of the Access-Control-Allow-Origin | COMMENT |
| LOW | middleware/cors.go | 41 | // - error, if an error is returned, it is returned immediately by the handler. | COMMENT |
| LOW | middleware/cors.go | 61 | // accessing the resource. This is used in response to a preflight request. | COMMENT |
| LOW | middleware/cors.go | 81 | // Access-Control-Allow-Credentials response header. This header indicates | COMMENT |
| LOW | middleware/cors.go | 101 | // | COMMENT |
| LOW | middleware/cors.go | 121 | // Example: `https://example.com`, `http://example.com:8080`, `*` | COMMENT |
| LOW | middleware/request_logger.go | 21 | // HandleError: true, // forwards error to the global error handler, so it can decide appropriate status code | COMMENT |
| LOW | middleware/request_logger.go | 41 | // LogStatus: true, | COMMENT |
| LOW | middleware/request_logger.go | 61 | // if v.Error == nil { | COMMENT |
| LOW | middleware/request_logger.go | 81 | // LogStatus: true, | COMMENT |
| LOW | middleware/request_logger.go | 101 | // log := logrus.New() | COMMENT |
| LOW | middleware/request_logger.go | 121 | // })) | COMMENT |
| LOW | middleware/request_logger.go | 161 | // LogUserAgent instructs logger to extract request user agent values. | COMMENT |
| LOW | middleware/key_auth.go | 21 | Skipper Skipper | COMMENT |
| LOW | middleware/key_auth.go | 41 | // access to environment with their own auth scheme. | COMMENT |
| LOW | middleware/key_auth.go | 61 | // and continue. Some logic down the remaining execution chain needs to check that (public) key auth value then. | COMMENT |
| LOW | middleware/key_auth.go | 81 | // // Use constant-time comparison to prevent timing attacks | COMMENT |
| LOW | middleware/extractor.go | 61 | // `<cut-prefix>` is argument value to cut/trim prefix of the extracted value. This is useful if header | COMMENT |
| LOW | middleware/secure.go | 21 | COMMENT | |
| LOW | middleware/secure.go | 41 | // be accessed using HTTPS. This reduces your exposure to some SSL-stripping | COMMENT |
| 12 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | router.go | 126 | // You can leverage Echo.OnAddRoute callback to add HEAD routes explicitly from a single place. | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | renderer.go | 14 | // Example usage: | COMMENT |