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feat(detection): expand agent branch prefixes and co-author email detection (#93) #94

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feat(detection): expand agent branch prefixes and co-author email detection (#93) #94

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feat(detection): expand agent branch prefixes and co-author email det…
neo0007777 Aug 21, 2026
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test(detection): add positive and negative test cases for agent branc…
neo0007777 Aug 21, 2026
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7 changes: 6 additions & 1 deletion detection/branchname/branchname_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,12 @@ func TestDetectNoMatch(t *testing.T) {
cases := []string{
"main",
"feature/add-login",
"fix-codex-typo", // "codex" appears, but not as a branch prefix
"fix-codex-typo", // "codex" appears, but not as a branch prefix
"rooster/fix-bug", // starts with "roo", but not "roo/"
"windsurfer/refactor", // starts with "windsurf", but not "windsurf/"
"openhands-discussion", // missing trailing slash "openhands/"
"swe-agent-docs", // missing trailing slash "swe-agent/"
"feature/roo-code", // prefix appears in body, not at start
"",
}

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24 changes: 16 additions & 8 deletions detection/constants.go
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Original file line number Diff line number Diff line change
Expand Up @@ -140,14 +140,19 @@ var SupportedToolsInMentions = []string{
// KnownAgentBranchPrefixes maps branch name prefixes used by AI coding CLIs/agents
// when they create their own branches (e.g. "codex/fix-bug") to tool names.
var KnownAgentBranchPrefixes = map[string]string{
"codex/": "OpenAI Codex",
"claude/": "Claude",
"copilot/": "GitHub Copilot",
"cursor/": "Cursor",
"devin/": "Devin",
"cline/": "Cline",
"aider/": "Aider",
"gemini/": "Gemini",
"codex/": "OpenAI Codex",
"claude/": "Claude",
"copilot/": "GitHub Copilot",
"cursor/": "Cursor",
"devin/": "Devin",
"cline/": "Cline",
"aider/": "Aider",
"gemini/": "Gemini",
"roo/": "Roo Code",
"roo-code/": "Roo Code",
"windsurf/": "Windsurf",
"openhands/": "OpenHands",
"swe-agent/": "SWE-Agent",
}

// KnownCoAuthorEmails Known emails present with Co-Authored-By trailers
Expand All @@ -156,6 +161,9 @@ var KnownCoAuthorEmails = map[string]string{
"cursoragent@cursor.com": "Cursor",
"noreply@aider.chat": "Aider",
"copilot@github.com": "Copilot",
"noreply@continue.dev": "Continue.dev",
"noreply@windsurf.com": "Windsurf",
"openhands@all-hands.dev": "OpenHands",
}

// CoAuthorPattern Regex to look for Co-Authored-By trailer with name and email
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40 changes: 40 additions & 0 deletions detection/trailer/trailer_test.go
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Expand Up @@ -57,6 +57,46 @@ func TestDetect(t *testing.T) {
wantScore: []float64{85},
wantConfidence: []detection.Confidence{detection.ConfidenceHigh},
},
{
name: "coauthor: Continue.dev trailer",
message: "feat: add feature\n\nCo-Authored-By: Continue <noreply@continue.dev>",
wantTools: []string{"Continue.dev"},
wantModels: []string{""},
wantScore: []float64{75},
wantConfidence: []detection.Confidence{detection.ConfidenceHigh},
},
{
name: "coauthor: Windsurf trailer",
message: "feat: add feature\n\nCo-Authored-By: Windsurf <noreply@windsurf.com>",
wantTools: []string{"Windsurf"},
wantModels: []string{""},
wantScore: []float64{75},
wantConfidence: []detection.Confidence{detection.ConfidenceHigh},
},
{
name: "coauthor: OpenHands trailer",
message: "feat: add feature\n\nCo-Authored-By: OpenHands <openhands@all-hands.dev>",
wantTools: []string{"OpenHands"},
wantModels: []string{""},
wantScore: []float64{75},
wantConfidence: []detection.Confidence{detection.ConfidenceHigh},
},
{
name: "coauthor: negative - unknown email domain for Continue",
message: "feat: add feature\n\nCo-Authored-By: Continue <user@customdomain.com>",
wantTools: []string{},
wantModels: []string{},
wantScore: []float64{},
wantConfidence: []detection.Confidence{},
},
{
name: "coauthor: negative - human coauthor with AI tool name in username",
message: "feat: add feature\n\nCo-Authored-By: Windsurfer <human@mycompany.org>",
wantTools: []string{},
wantModels: []string{},
wantScore: []float64{},
wantConfidence: []detection.Confidence{},
},
{
name: "coauthor: Cursor trailer with parenthesized model",
message: "refactor: extract method\n\nCo-Authored-By: Cursor (composer 2.5) <cursoragent@cursor.com>",
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