Initial changeset for Go bump

.changeset/tough-adults-argue.md

@@ -0,0 +1,5 @@
+---
+'detect-agent': minor
+---
+
+Add Go module support

src/determine-agent.test.ts

@@ -9,17 +9,27 @@ type TestCase = (typeof testCases)[number];
 
 const ALL_AGENT_ENVS = [
   'AI_AGENT',
-  'CURSOR_TRACE_ID', 'CURSOR_AGENT', 'CURSOR_EXTENSION_HOST_ROLE',
+  'CURSOR_TRACE_ID',
+  'CURSOR_AGENT',
+  'CURSOR_EXTENSION_HOST_ROLE',
   'GEMINI_CLI',
-  'CODEX_SANDBOX', 'CODEX_CI', 'CODEX_THREAD_ID',
+  'CODEX_SANDBOX',
+  'CODEX_CI',
+  'CODEX_THREAD_ID',
   'ANTIGRAVITY_AGENT',
   'AUGMENT_AGENT',
-  'OPENCODE_CLIENT', 'OPENCODE',
+  'OPENCODE_CLIENT',
+  'OPENCODE',
   'GOOSE_PROVIDER',
-  'JUNIE_DATA', 'JUNIE_SHIM_PATH',
-  'CLAUDECODE', 'CLAUDE_CODE', 'CLAUDE_CODE_IS_COWORK',
+  'JUNIE_DATA',
+  'JUNIE_SHIM_PATH',
+  'CLAUDECODE',
+  'CLAUDE_CODE',
+  'CLAUDE_CODE_IS_COWORK',
   'REPL_ID',
-  'COPILOT_MODEL', 'COPILOT_ALLOW_ALL', 'COPILOT_GITHUB_TOKEN',
+  'COPILOT_MODEL',
+  'COPILOT_ALLOW_ALL',
+  'COPILOT_GITHUB_TOKEN',
   'TERM_PROGRAM',
 ];
 
@@ -51,7 +61,10 @@ describe('determineAgent', () => {
       }
 
       if (tc.files && tc.files.length > 0) {
-        const fsConfig: Record<string, ReturnType<typeof mockFs.directory>> = {};
+        const fsConfig: Record<
+          string,
+          ReturnType<typeof mockFs.directory>
+        > = {};
         for (const path of tc.files) {
           fsConfig[path] = mockFs.directory({ mode: 0o755 });
         }
@@ -67,7 +80,10 @@ describe('determineAgent', () => {
           : undefined);
 
       if (tc.expectedIsAgent) {
-        expect(result).toEqual({ isAgent: true, agent: { name: expectedName } });
+        expect(result).toEqual({
+          isAgent: true,
+          agent: { name: expectedName },
+        });
       } else {
         expect(result).toEqual({ isAgent: false });
       }

testcases.json

@@ -1,58 +1,273 @@
 [
   { "name": "no agent when nothing set", "env": {}, "expectedIsAgent": false },
 
-  { "name": "detects custom agent from AI_AGENT", "env": { "AI_AGENT": "custom-agent" }, "expectedIsAgent": true, "expectedName": "custom-agent" },
+  {
+    "name": "detects custom agent from AI_AGENT",
+    "env": { "AI_AGENT": "custom-agent" },
+    "expectedIsAgent": true,
+    "expectedName": "custom-agent"
+  },
 
-  { "name": "detects github copilot from AI_AGENT=github-copilot", "env": { "AI_AGENT": "github-copilot" }, "expectedIsAgent": true, "expectedAgentKey": "GITHUB_COPILOT" },
-  { "name": "detects github copilot from COPILOT_MODEL", "env": { "COPILOT_MODEL": "gpt-5" }, "expectedIsAgent": true, "expectedAgentKey": "GITHUB_COPILOT" },
-  { "name": "detects github copilot from COPILOT_ALLOW_ALL", "env": { "COPILOT_ALLOW_ALL": "true" }, "expectedIsAgent": true, "expectedAgentKey": "GITHUB_COPILOT" },
-  { "name": "detects github copilot from COPILOT_GITHUB_TOKEN", "env": { "COPILOT_GITHUB_TOKEN": "ghp_xxx" }, "expectedIsAgent": true, "expectedAgentKey": "GITHUB_COPILOT" },
+  {
+    "name": "detects github copilot from AI_AGENT=github-copilot",
+    "env": { "AI_AGENT": "github-copilot" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "GITHUB_COPILOT"
+  },
+  {
+    "name": "detects github copilot from COPILOT_MODEL",
+    "env": { "COPILOT_MODEL": "gpt-5" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "GITHUB_COPILOT"
+  },
+  {
+    "name": "detects github copilot from COPILOT_ALLOW_ALL",
+    "env": { "COPILOT_ALLOW_ALL": "true" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "GITHUB_COPILOT"
+  },
+  {
+    "name": "detects github copilot from COPILOT_GITHUB_TOKEN",
+    "env": { "COPILOT_GITHUB_TOKEN": "ghp_xxx" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "GITHUB_COPILOT"
+  },
 
-  { "name": "detects cursor from CURSOR_TRACE_ID", "env": { "CURSOR_TRACE_ID": "some-uuid" }, "expectedIsAgent": true, "expectedAgentKey": "CURSOR" },
+  {
+    "name": "detects cursor from CURSOR_TRACE_ID",
+    "env": { "CURSOR_TRACE_ID": "some-uuid" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "CURSOR"
+  },
 
-  { "name": "detects cursor cli from CURSOR_AGENT", "env": { "CURSOR_AGENT": "1" }, "expectedIsAgent": true, "expectedAgentKey": "CURSOR_CLI" },
-  { "name": "detects cursor cli from CURSOR_EXTENSION_HOST_ROLE=agent-exec", "env": { "CURSOR_EXTENSION_HOST_ROLE": "agent-exec" }, "expectedIsAgent": true, "expectedAgentKey": "CURSOR_CLI" },
+  {
+    "name": "detects cursor cli from CURSOR_AGENT",
+    "env": { "CURSOR_AGENT": "1" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "CURSOR_CLI"
+  },
+  {
+    "name": "detects cursor cli from CURSOR_EXTENSION_HOST_ROLE=agent-exec",
+    "env": { "CURSOR_EXTENSION_HOST_ROLE": "agent-exec" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "CURSOR_CLI"
+  },
 
-  { "name": "detects gemini from GEMINI_CLI", "env": { "GEMINI_CLI": "1" }, "expectedIsAgent": true, "expectedAgentKey": "GEMINI" },
+  {
+    "name": "detects gemini from GEMINI_CLI",
+    "env": { "GEMINI_CLI": "1" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "GEMINI"
+  },
 
-  { "name": "detects codex from CODEX_SANDBOX", "env": { "CODEX_SANDBOX": "seatbelt" }, "expectedIsAgent": true, "expectedAgentKey": "CODEX" },
-  { "name": "detects codex from CODEX_CI", "env": { "CODEX_CI": "1" }, "expectedIsAgent": true, "expectedAgentKey": "CODEX" },
-  { "name": "detects codex from CODEX_THREAD_ID", "env": { "CODEX_THREAD_ID": "thread-123" }, "expectedIsAgent": true, "expectedAgentKey": "CODEX" },
+  {
+    "name": "detects codex from CODEX_SANDBOX",
+    "env": { "CODEX_SANDBOX": "seatbelt" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "CODEX"
+  },
+  {
+    "name": "detects codex from CODEX_CI",
+    "env": { "CODEX_CI": "1" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "CODEX"
+  },
+  {
+    "name": "detects codex from CODEX_THREAD_ID",
+    "env": { "CODEX_THREAD_ID": "thread-123" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "CODEX"
+  },
 
-  { "name": "detects antigravity from ANTIGRAVITY_AGENT", "env": { "ANTIGRAVITY_AGENT": "1" }, "expectedIsAgent": true, "expectedAgentKey": "ANTIGRAVITY" },
+  {
+    "name": "detects antigravity from ANTIGRAVITY_AGENT",
+    "env": { "ANTIGRAVITY_AGENT": "1" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "ANTIGRAVITY"
+  },
 
-  { "name": "detects augment cli from AUGMENT_AGENT", "env": { "AUGMENT_AGENT": "1" }, "expectedIsAgent": true, "expectedAgentKey": "AUGMENT_CLI" },
+  {
+    "name": "detects augment cli from AUGMENT_AGENT",
+    "env": { "AUGMENT_AGENT": "1" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "AUGMENT_CLI"
+  },
 
-  { "name": "detects opencode from OPENCODE_CLIENT", "env": { "OPENCODE_CLIENT": "opencode" }, "expectedIsAgent": true, "expectedAgentKey": "OPENCODE" },
-  { "name": "detects opencode from OPENCODE", "env": { "OPENCODE": "1" }, "expectedIsAgent": true, "expectedAgentKey": "OPENCODE" },
+  {
+    "name": "detects opencode from OPENCODE_CLIENT",
+    "env": { "OPENCODE_CLIENT": "opencode" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "OPENCODE"
+  },
+  {
+    "name": "detects opencode from OPENCODE",
+    "env": { "OPENCODE": "1" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "OPENCODE"
+  },
 
-  { "name": "detects goose from GOOSE_PROVIDER", "env": { "GOOSE_PROVIDER": "anthropic" }, "expectedIsAgent": true, "expectedAgentKey": "GOOSE" },
+  {
+    "name": "detects goose from GOOSE_PROVIDER",
+    "env": { "GOOSE_PROVIDER": "anthropic" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "GOOSE"
+  },
 
-  { "name": "detects junie from JUNIE_DATA", "env": { "JUNIE_DATA": "/tmp/junie" }, "expectedIsAgent": true, "expectedAgentKey": "JUNIE" },
-  { "name": "detects junie from JUNIE_SHIM_PATH", "env": { "JUNIE_SHIM_PATH": "/tmp/junie/shim" }, "expectedIsAgent": true, "expectedAgentKey": "JUNIE" },
+  {
+    "name": "detects junie from JUNIE_DATA",
+    "env": { "JUNIE_DATA": "/tmp/junie" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "JUNIE"
+  },
+  {
+    "name": "detects junie from JUNIE_SHIM_PATH",
+    "env": { "JUNIE_SHIM_PATH": "/tmp/junie/shim" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "JUNIE"
+  },
 
-  { "name": "detects pi from PATH containing .pi/agent", "env": { "PATH": "/usr/bin:/home/me/.pi/agent/bin" }, "expectedIsAgent": true, "expectedAgentKey": "PI" },
+  {
+    "name": "detects pi from PATH containing .pi/agent",
+    "env": { "PATH": "/usr/bin:/home/me/.pi/agent/bin" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "PI"
+  },
 
-  { "name": "detects kiro when TERM_PROGRAM=kiro and no TTY", "env": { "TERM_PROGRAM": "kiro" }, "tty": false, "expectedIsAgent": true, "expectedAgentKey": "KIRO" },
-  { "name": "does not detect kiro when TERM_PROGRAM=kiro with a TTY", "env": { "TERM_PROGRAM": "kiro" }, "tty": true, "expectedIsAgent": false },
+  {
+    "name": "detects kiro when TERM_PROGRAM=kiro and no TTY",
+    "env": { "TERM_PROGRAM": "kiro" },
+    "tty": false,
+    "expectedIsAgent": true,
+    "expectedAgentKey": "KIRO"
+  },
+  {
+    "name": "does not detect kiro when TERM_PROGRAM=kiro with a TTY",
+    "env": { "TERM_PROGRAM": "kiro" },
+    "tty": true,
+    "expectedIsAgent": false
+  },
 
-  { "name": "detects claude from CLAUDE_CODE", "env": { "CLAUDE_CODE": "1" }, "expectedIsAgent": true, "expectedAgentKey": "CLAUDE" },
-  { "name": "detects claude from CLAUDECODE", "env": { "CLAUDECODE": "1" }, "expectedIsAgent": true, "expectedAgentKey": "CLAUDE" },
+  {
+    "name": "detects claude from CLAUDE_CODE",
+    "env": { "CLAUDE_CODE": "1" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "CLAUDE"
+  },
+  {
+    "name": "detects claude from CLAUDECODE",
+    "env": { "CLAUDECODE": "1" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "CLAUDE"
+  },
 
-  { "name": "detects cowork from CLAUDECODE + CLAUDE_CODE_IS_COWORK", "env": { "CLAUDECODE": "1", "CLAUDE_CODE_IS_COWORK": "1" }, "expectedIsAgent": true, "expectedAgentKey": "COWORK" },
-  { "name": "detects cowork from CLAUDE_CODE + CLAUDE_CODE_IS_COWORK", "env": { "CLAUDE_CODE": "1", "CLAUDE_CODE_IS_COWORK": "1" }, "expectedIsAgent": true, "expectedAgentKey": "COWORK" },
-  { "name": "CLAUDE_CODE_IS_COWORK alone returns no agent", "env": { "CLAUDE_CODE_IS_COWORK": "1" }, "expectedIsAgent": false },
+  {
+    "name": "detects cowork from CLAUDECODE + CLAUDE_CODE_IS_COWORK",
+    "env": { "CLAUDECODE": "1", "CLAUDE_CODE_IS_COWORK": "1" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "COWORK"
+  },
+  {
+    "name": "detects cowork from CLAUDE_CODE + CLAUDE_CODE_IS_COWORK",
+    "env": { "CLAUDE_CODE": "1", "CLAUDE_CODE_IS_COWORK": "1" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "COWORK"
+  },
+  {
+    "name": "CLAUDE_CODE_IS_COWORK alone returns no agent",
+    "env": { "CLAUDE_CODE_IS_COWORK": "1" },
+    "expectedIsAgent": false
+  },
 
-  { "name": "detects devin when /opt/.devin exists", "env": {}, "files": ["/opt/.devin"], "expectedIsAgent": true, "expectedAgentKey": "DEVIN", "skipGo": true },
+  {
+    "name": "detects devin when /opt/.devin exists",
+    "env": {},
+    "files": ["/opt/.devin"],
+    "expectedIsAgent": true,
+    "expectedAgentKey": "DEVIN",
+    "skipGo": true
+  },
 
-  { "name": "detects replit from REPL_ID", "env": { "REPL_ID": "1" }, "expectedIsAgent": true, "expectedAgentKey": "REPLIT" },
+  {
+    "name": "detects replit from REPL_ID",
+    "env": { "REPL_ID": "1" },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "REPLIT"
+  },
 
-  { "name": "AI_AGENT takes highest priority", "env": { "AI_AGENT": "custom-priority", "CURSOR_TRACE_ID": "some-uuid", "CURSOR_AGENT": "1", "GEMINI_CLI": "1", "CODEX_SANDBOX": "seatbelt", "ANTIGRAVITY_AGENT": "1", "AUGMENT_AGENT": "1", "OPENCODE_CLIENT": "opencode", "CLAUDE_CODE": "1", "REPL_ID": "1", "COPILOT_MODEL": "gpt-5", "COPILOT_ALLOW_ALL": "true", "COPILOT_GITHUB_TOKEN": "ghp_xxx" }, "expectedIsAgent": true, "expectedName": "custom-priority" },
-  { "name": "CURSOR_TRACE_ID takes priority over other agents", "env": { "CURSOR_TRACE_ID": "some-uuid", "CURSOR_AGENT": "1", "GEMINI_CLI": "1", "CODEX_SANDBOX": "seatbelt", "ANTIGRAVITY_AGENT": "1", "AUGMENT_AGENT": "1", "OPENCODE_CLIENT": "opencode", "CLAUDE_CODE": "1", "REPL_ID": "1", "COPILOT_MODEL": "gpt-5" }, "expectedIsAgent": true, "expectedAgentKey": "CURSOR" },
-  { "name": "CURSOR_AGENT takes priority over remaining agents", "env": { "CURSOR_AGENT": "1", "GEMINI_CLI": "1", "CODEX_SANDBOX": "seatbelt", "ANTIGRAVITY_AGENT": "1", "AUGMENT_AGENT": "1", "OPENCODE_CLIENT": "opencode", "CLAUDE_CODE": "1", "REPL_ID": "1", "COPILOT_MODEL": "gpt-5" }, "expectedIsAgent": true, "expectedAgentKey": "CURSOR_CLI" },
+  {
+    "name": "AI_AGENT takes highest priority",
+    "env": {
+      "AI_AGENT": "custom-priority",
+      "CURSOR_TRACE_ID": "some-uuid",
+      "CURSOR_AGENT": "1",
+      "GEMINI_CLI": "1",
+      "CODEX_SANDBOX": "seatbelt",
+      "ANTIGRAVITY_AGENT": "1",
+      "AUGMENT_AGENT": "1",
+      "OPENCODE_CLIENT": "opencode",
+      "CLAUDE_CODE": "1",
+      "REPL_ID": "1",
+      "COPILOT_MODEL": "gpt-5",
+      "COPILOT_ALLOW_ALL": "true",
+      "COPILOT_GITHUB_TOKEN": "ghp_xxx"
+    },
+    "expectedIsAgent": true,
+    "expectedName": "custom-priority"
+  },
+  {
+    "name": "CURSOR_TRACE_ID takes priority over other agents",
+    "env": {
+      "CURSOR_TRACE_ID": "some-uuid",
+      "CURSOR_AGENT": "1",
+      "GEMINI_CLI": "1",
+      "CODEX_SANDBOX": "seatbelt",
+      "ANTIGRAVITY_AGENT": "1",
+      "AUGMENT_AGENT": "1",
+      "OPENCODE_CLIENT": "opencode",
+      "CLAUDE_CODE": "1",
+      "REPL_ID": "1",
+      "COPILOT_MODEL": "gpt-5"
+    },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "CURSOR"
+  },
+  {
+    "name": "CURSOR_AGENT takes priority over remaining agents",
+    "env": {
+      "CURSOR_AGENT": "1",
+      "GEMINI_CLI": "1",
+      "CODEX_SANDBOX": "seatbelt",
+      "ANTIGRAVITY_AGENT": "1",
+      "AUGMENT_AGENT": "1",
+      "OPENCODE_CLIENT": "opencode",
+      "CLAUDE_CODE": "1",
+      "REPL_ID": "1",
+      "COPILOT_MODEL": "gpt-5"
+    },
+    "expectedIsAgent": true,
+    "expectedAgentKey": "CURSOR_CLI"
+  },
 
-  { "name": "empty string values return no agent", "env": { "AI_AGENT": "", "CURSOR_TRACE_ID": "" }, "expectedIsAgent": false },
-  { "name": "whitespace-only AI_AGENT returns no agent", "env": { "AI_AGENT": "   " }, "expectedIsAgent": false },
-  { "name": "special characters in AI_AGENT are preserved", "env": { "AI_AGENT": "my-custom-agent@v1.0" }, "expectedIsAgent": true, "expectedName": "my-custom-agent@v1.0" },
-  { "name": "leading and trailing whitespace in AI_AGENT is trimmed", "env": { "AI_AGENT": "  custom-agent  " }, "expectedIsAgent": true, "expectedName": "custom-agent" }
+  {
+    "name": "empty string values return no agent",
+    "env": { "AI_AGENT": "", "CURSOR_TRACE_ID": "" },
+    "expectedIsAgent": false
+  },
+  {
+    "name": "whitespace-only AI_AGENT returns no agent",
+    "env": { "AI_AGENT": "   " },
+    "expectedIsAgent": false
+  },
+  {
+    "name": "special characters in AI_AGENT are preserved",
+    "env": { "AI_AGENT": "my-custom-agent@v1.0" },
+    "expectedIsAgent": true,
+    "expectedName": "my-custom-agent@v1.0"
+  },
+  {
+    "name": "leading and trailing whitespace in AI_AGENT is trimmed",
+    "env": { "AI_AGENT": "  custom-agent  " },
+    "expectedIsAgent": true,
+    "expectedName": "custom-agent"
+  }
 ]