Repository Analysis

fatedier/frp

A fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet.

3.8 Likely human-written View on GitHub

Analysis Overview

This report presents the forensic synthetic code analysis of fatedier/frp, a Go project with 108,009 GitHub stars. SynthScan v2.0 examined 75,535 lines of code across 462 source files, recording 282 pattern matches distributed across 4 syntactic categories. The overall adjusted score of 3.8 places this repository in the Likely human-written 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).

3.8
Adjusted Score
3.8
Raw Score
100%
Time Factor
2026-07-11
Last Push
108.0K
Stars
Go
Language
75.5K
Lines of Code
462
Files
282
Pattern Hits
2026-07-14
Scan Date
0.00
HC Hit Rate

What These Metrics Mean

Adjusted Score
Primary synthetic code indicator. Raw score normalised per 1,000 lines of code and multiplied by the temporal discount factor. This is the definitive comparative metric — use it to rank repositories by AI authorship density.
Raw Score
The unmodified sum of all severity-weighted, context-multiplied pattern match scores before temporal discounting. Reflects the absolute signal strength independent of when the repository was last active.
Time Factor
The temporal discount multiplier (0–100%) applied to the raw score. Repositories last updated before ChatGPT's launch (Nov 2022) receive a 5% factor. Full signal is only assigned to repositories active in the post-adoption era (Jan 2024+).
Pattern Hits
Total count of individual pattern matches across all files and categories. A high hit count with a low score may indicate a very large codebase with isolated AI snippets; a low count with a high score indicates dense, concentrated AI signatures.
HC Hit Rate
High+Critical pattern hits per file, averaged across the repository. This orthogonal signal catches repositories where a few files are densely packed with high-severity AI tells — a strong indicator even when the normalised score appears moderate due to codebase size.
Lines of Code / Files
Total lines and files analysed. The scanner examines 94 file extensions. These denominators are used to normalise the score, enabling fair comparison between repositories of vastly different sizes.

Score History

This chart maps the temporal evolution of the adjusted synthetic code score across successive scan runs. An upward trajectory indicates ongoing incorporation of AI-generated code or expanding LLM-assisted scaffolding; a stable or declining trajectory may reflect active human refactoring, code removal, or the adoption of stricter authorship policies. The dashed secondary line (right axis) independently tracks total raw pattern hit count, which can diverge from the normalised score when codebase size changes significantly between scans.

Severity Breakdown

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.

CRITICAL 0HIGH 0MEDIUM 4LOW 278

Directory Score Breakdown

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.

Pattern Findings

The scanner identified 282 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.

Over-Commented Block272 hits · 272 pts
SeverityFileLineSnippetContext
LOWcmd/frpc/main.go1// Copyright 2016 fatedier, fatedier@gmail.comCOMMENT
LOWcmd/frpc/sub/proxy.go1// Copyright 2023 The frp AuthorsCOMMENT
LOWcmd/frpc/sub/admin.go1// Copyright 2023 The frp AuthorsCOMMENT
LOWcmd/frpc/sub/nathole.go1// Copyright 2023 The frp AuthorsCOMMENT
LOWcmd/frpc/sub/root.go1// Copyright 2018 fatedier, fatedier@gmail.comCOMMENT
LOWcmd/frpc/sub/verify.go1// Copyright 2021 The frp AuthorsCOMMENT
LOWcmd/frps/main.go1// Copyright 2018 fatedier, fatedier@gmail.comCOMMENT
LOWcmd/frps/root.go1// Copyright 2018 fatedier, fatedier@gmail.comCOMMENT
LOWcmd/frps/verify.go1// Copyright 2021 The frp AuthorsCOMMENT
LOWtest/e2e/e2e.go41 log.Infof("starting e2e run %q on Ginkgo node %d of total %d",COMMENT
LOWtest/e2e/e2e.go61// such as making some global variables accessible to all parallel executionsCOMMENT
LOWtest/e2e/v1/basic/oidc.go1// Copyright 2026 The frp AuthorsCOMMENT
LOWtest/e2e/v1/basic/token_source.go1// Copyright 2025 The frp AuthorsCOMMENT
LOWtest/e2e/mock/server/oidcserver/oidcserver.go1// Copyright 2026 The frp AuthorsCOMMENT
LOWserver/service.go1// Copyright 2017 fatedier, fatedier@gmail.comCOMMENT
LOWserver/service_test.go1// Copyright 2026 The frp AuthorsCOMMENT
LOWserver/control.go1// Copyright 2017 fatedier, fatedier@gmail.comCOMMENT
LOWserver/api_router.go1// Copyright 2017 fatedier, fatedier@gmail.comCOMMENT
LOWserver/proxy/https.go1// Copyright 2019 fatedier, fatedier@gmail.comCOMMENT
LOWserver/proxy/xtcp.go1// Copyright 2019 fatedier, fatedier@gmail.comCOMMENT
LOWserver/proxy/tcpmux.go1// Copyright 2020 guylewin, guy@lewin.co.ilCOMMENT
LOWserver/proxy/xtcp_test.go1// Copyright 2026 The frp AuthorsCOMMENT
LOWserver/proxy/proxy.go1// Copyright 2017 fatedier, fatedier@gmail.comCOMMENT
LOWserver/proxy/sudp.go1// Copyright 2019 fatedier, fatedier@gmail.comCOMMENT
LOWserver/proxy/stcp.go1// Copyright 2019 fatedier, fatedier@gmail.comCOMMENT
LOWserver/proxy/http.go1// Copyright 2019 fatedier, fatedier@gmail.comCOMMENT
LOWserver/proxy/udp.go1// Copyright 2019 fatedier, fatedier@gmail.comCOMMENT
LOWserver/proxy/tcp.go1// Copyright 2019 fatedier, fatedier@gmail.comCOMMENT
LOWserver/proxy/proxy_test.go1// Copyright 2026 The frp AuthorsCOMMENT
LOWserver/proxy/sudp_test.go1// Copyright 2026 The frp AuthorsCOMMENT
LOWserver/group/https.go1// Copyright 2025 The frp AuthorsCOMMENT
LOWserver/group/tcpmux.go1// Copyright 2020 guylewin, guy@lewin.co.ilCOMMENT
LOWserver/group/group.go1// Copyright 2018 fatedier, fatedier@gmail.comCOMMENT
LOWserver/group/tcp.go1// Copyright 2018 fatedier, fatedier@gmail.comCOMMENT
LOWserver/controller/resource.go1// Copyright 2019 fatedier, fatedier@gmail.comCOMMENT
LOWserver/http/controller.go1// Copyright 2025 The frp AuthorsCOMMENT
LOWserver/http/controller_v2_test.go1// Copyright 2026 The frp AuthorsCOMMENT
LOWserver/http/controller_v2_proxy_spec_test.go1// Copyright 2026 The frp AuthorsCOMMENT
LOWserver/http/controller_test.go1// Copyright 2026 The frp AuthorsCOMMENT
LOWserver/http/controller_v2.go1// Copyright 2026 The frp AuthorsCOMMENT
LOWserver/http/model/types.go1// Copyright 2025 The frp AuthorsCOMMENT
LOWserver/http/model/v2.go1// Copyright 2026 The frp AuthorsCOMMENT
LOWserver/visitor/visitor_test.go1// Copyright 2026 The frp AuthorsCOMMENT
LOWserver/visitor/visitor.go1// Copyright 2019 fatedier, fatedier@gmail.comCOMMENT
LOWserver/registry/registry.go1// Copyright 2025 The frp AuthorsCOMMENT
LOWserver/registry/registry_test.go1// Copyright 2026 The frp AuthorsCOMMENT
LOWassets/assets.go1// Copyright 2016 fatedier, fatedier@gmail.comCOMMENT
LOWconf/frpc_full_example.toml21# console or real logFile path like ./frpc.logCOMMENT
LOWconf/frpc_full_example.toml41COMMENT
LOWconf/frpc_full_example.toml61# Specify a custom CA certificate file for verifying the OIDC token endpoint's TLS certificate.COMMENT
LOWconf/frpc_full_example.toml81COMMENT
LOWconf/frpc_full_example.toml101COMMENT
LOWconf/frpc_full_example.toml121# transport.quic.keepalivePeriod = 10COMMENT
LOWconf/frpc_full_example.toml141# to disable it.COMMENT
LOWconf/frpc_full_example.toml161# This parameter should be same between client and server.COMMENT
LOWconf/frps_full_example.toml1# This configuration file is for reference only. Please do not use this configuration directly to run the program as it COMMENT
LOWconf/frps_full_example.toml21# transport.quic.keepalivePeriod = 10COMMENT
LOWconf/frps_full_example.toml41# transport.tcpKeepalive = 7200COMMENT
LOWconf/frps_full_example.toml61# HTTP CONNECT requests. By default, this value is 0.COMMENT
LOWconf/frps_full_example.toml101# auth.additionalScopes specifies additional scopes to include authentication information.COMMENT
212 more matches not shown…
Slop Phrases4 hits · 12 pts
SeverityFileLineSnippetContext
MEDIUMconf/frpc_full_example.toml37# alternatively, you can use tokenSource to load the token from a fileCOMMENT
MEDIUMconf/frpc_full_example.toml237# Resolve your domain names to [serverAddr] so you can use http://web01.yourdomain.com to browse web01 and http://web02.COMMENT
MEDIUMconf/frps_full_example.toml108# alternatively, you can use tokenSource to load the token from a fileCOMMENT
MEDIUMconf/legacy/frpc_legacy_full.ini220# Resolve your domain names to [server_addr] so you can use http://web01.yourdomain.com to browse web01 and http://web02COMMENT
Fake / Example Data5 hits · 5 pts
SeverityFileLineSnippetContext
LOWweb/frpc/src/components/ConfigField.vue8 :placeholder="placeholder"CODE
LOWweb/frpc/src/components/ConfigField.vue16 :placeholder="placeholder"CODE
LOWweb/frpc/src/components/ConfigField.vue57 :placeholder="placeholder"CODE
LOWweb/frpc/src/components/ConfigField.vue75 :placeholder="placeholder"CODE
LOWweb/frpc/src/components/StringListEditor.vue13 :placeholder="placeholder"CODE
Redundant / Tautological Comments1 hit · 2 pts
SeverityFileLineSnippetContext
LOWhack/run-e2e.sh6# Check if ginkgo is availableCOMMENT