G.ref is not a function error when using extension commands on Linux

[jocenunes]

When I use the "Create new spec" or "Create new spec with agents" commands and type an idea, the Claude Code extension for VSCode throws the following error:

ERROR G.ref is not a function. (In 'G.ref()', 'G.ref' is undefined)
/$bunfs/root/claude:642:164

Environment:

OS: Linux
Bun version: v1.2.19 (Linux x64 baseline)
Extension version: v0.2.7
VS Code version: [adicione sua versão aqui]
Node version: [adicione sua versão aqui]

Steps to reproduce:

Install the kiro-for-cc extension v0.2.7
Use either "Create new spec" or "Create new spec with agents" command
Type any idea/prompt
The error occurs when the extension tries to open Claude Code

Error details:
The error appears to be related to TTY/raw mode initialization when the Claude CLI is invoked by the extension. The stdin is not properly configured as a TTY terminal.
Full error log:

/help for help, /status for your current setup

cwd: /home/user/Documentos/Desenvolvimento/projetos-ecommerce/core-2-dashboard-builder-react

─────────────────────────────────────────────────────────────────────────────────────────────────────

Overrides (via env):

• API timeout: 600000ms

ERROR G.ref is not a function. (In 'G.ref()', 'G.ref' is
undefined)

/$bunfs/root/claude:642:164

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640 | ).slice(1).map((J)=>{let Q=NtZ.parseLine(J);if(!Q)return NQ.default.createElement(y,{key:J},NQ.default.createElement(E,{dimColor:!0},"- "),NQ.default.createElement(E,{dimColor:!0,bold:!0},J));return NQ.default.createElement(y,{key:J},NQ.default.createElement(E,{dimColor:!0},"- "),NQ.default.createElement(E,{dimColor:!0,bold:!0},Q.function),NQ.default.createElement(E,{dimColor:!0,color:"secondaryText"}," ","(",AtZ(Q.file)??"",":",Q.line,":",Q.column,")"))})))}import{Buffer as b05}from"buffer";var h05=/^(?:\x1b)([a-zA-Z0-9])$/,g05=/^(?:\x1b+)(O|N|\[|\[\[)(?:(\d+)(?:;(\d+))?([~^$])|(?:1;)?(\d+)?([a-zA-Z]))/,u05="\x1B[200~",bF0="\x1B[201~";function d05(Z){return{name:"",fn:!1,ctrl:!1,meta:!1,shift:!1,option:!1,sequence:Z,raw:Z,isPasted:!0}}var m05=new RegExp("^(.*?)("+["\\x1b\\][0-9]*(?:;[^\\x07\\x1b]*)*(?:\\x07|\\x1b\\\\)","\\x1bP[^\\x1b]*\\x1b\\\\","\\x1b\\[[0-9]*(?:;[0-9]*)*[A-Za-z~]","\\x1bO[A-Za-z]","\\x1b[\\x00-\\x7F]","\\x1b\\x1b","$"].map((Z)=>(?:${Z})).join("|")+")","s"),c05=new RegExp("(.*?)("+["\\x1 | ... truncated 641 | )W.name="enter";else if(Z==="\t")W.name="tab";else if(Z==="\b"||Z==="\x1B\b")W.name="backspace",W.meta=Z.charAt(0)==="\x1B";else if(Z==="\x7F"||Z==="\x1B\x7F")W.name="backspace",W.meta=Z.charAt(0)==="\x1B";else if(Z==="\x1B"||Z==="\x1B\x1B")W.name="escape",W.meta=Z.length===2;else if(Z===" "||Z==="\x1B ")W.name="space",W.meta=Z.length===2;else if(Z==="\x1F")W.name="_",W.ctrl=!0;else if(Z<="\x1A"&&Z.length===1)W.name=String.fromCharCode(Z.charCodeAt(0)+97-1),W.ctrl=!0;else if(Z.length===1&&Z>="0"&&Z<="9")W.name="number";else if(Z.length===1&&Z>="a"&&Z<="z")W.name=Z;else if(Z.length===1&&Z>="A"&&Z<="Z")W.name=Z.toLowerCase(),W.shift=!0;else if(G=h05.exec(Z))W.meta=!0,W.shift=/^[A-Z]$/.test(G[1]);else if(G=g05.exec(Z)){let Y=[...Z];if(Y[0]==="\x1B"&&Y[1]==="\x1B")W.option=!0;let X=[G[1],G[2],G[4],G[6]].filter(Boolean).join(""),B=(G[3]||G[5]||1)-1;W.ctrl=!!(B&4),W.meta=!!(B&10),W.shift=!!(B&1),W.code=X,W.name=MtZ[X],W.shift=p05(X)||W.shift,W.ctrl=n05(X)||W.ctrl}if(W.raw==="\x1Bb")W.meta=!0,W.name="left";else if( | ... truncated
642 | Read about how to prevent this error on https://github.com/vadimdemedes/ink/#israwmodesupported`);if(G.setEncoding("utf8"),Z){if(this.rawModeEnabledCount===0)G.ref(),G.setRawMode(!0),G.addListener("readable",this.handleReadable),this.props.stdout.write("\x1B[?2004h");this.rawModeEnabledCount++;return}if(--this.rawModeEnabledCount===0)this.props.stdout.write("\x1B[?2004l"),G.setRawMode(!1),G.removeListener("readable",this.handleReadable),G.unref()};flushIncomplete=()=>{if(this.incompleteEscapeTimer=null,!this.keyParseState.incomplete)return;this.processInput(null)};processInput=(Z)=>{let[G,W]=EtZ(this.keyParseState,Z);this.keyParseState=W;for(let Y of G)this.handleInput(Y.sequence),this.internal_eventEmitter.emit("input",Y);if(this.keyParseState.incomplete){if(this.incompleteEscapeTimer)clearTimeout(this.incompleteEscapeTimer);this.incompleteEscapeTimer=setTimeout(this.flushIncomplete,this.keyParseState.mode==="IN_PASTE"?this.PASTE_TIMEOUT:this.NORMAL_TIMEOUT)}};handleReadable=()=>{let Z;while((Z=this.props.st | ... truncated

TypeError: G.ref is not a function. (In 'G.ref()', 'G.ref' is undefined)
at handleSetRawMode (/$bunfs/root/claude:642:164)
at (/$bunfs/root/claude:649:257)
at JQ (/$bunfs/root/claude:190:21530)
at e3 (/$bunfs/root/claude:190:41111)
at TI (/$bunfs/root/claude:190:35147)
at JX (/$bunfs/root/claude:188:4842)
at BX (/$bunfs/root/claude:190:32454)
at (/$bunfs/root/claude:194:1839)
at render (/$bunfs/root/claude:647:511)
at e05 (/$bunfs/root/claude:648:954)

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639 | ).slice(1).map((J)=>{let Q=NtZ.parseLine(J);if(!Q)return NQ.default.createElement(y,{key:J},NQ.default.createElement(E,{dimColor:!0},"- "),NQ.default.createElement(E,{dimColor:!0,bold:!0},J));return NQ.default.createElement(y,{key:J},NQ.default.createElement(E,{dimColor:!0},"- "),NQ.default.createElement(E,{dimColor:!0,bold:!0},Q.function),NQ.default.createElement(E,{dimColor:!0,color:"secondaryText"}," ","(",AtZ(Q.file)??"",":",Q.line,":",Q.column,")"))})))}import{Buffer as b05}from"buffer";var h05=/^(?:\x1b)([a-zA-Z0-9])$/,g05=/^(?:\x1b+)(O|N|\[|\[\[)(?:(\d+)(?:;(\d+))?([~^$])|(?:1;)?(\d+)?([a-zA-Z]))/,u05="\x1B[200~",bF0="\x1B[201~";function d05(Z){return{name:"",fn:!1,ctrl:!1,meta:!1,shift:!1,option:!1,sequence:Z,raw:Z,isPasted:!0}}var m05=new RegExp("^(.*?)("+["\\x1b\\][0-9]*(?:;[^\\x07\\x1b]*)*(?:\\x07|\\x1b\\\\)","\\x1bP[^\\x1b]*\\x1b\\\\","\\x1b\\[[0-9]*(?:;[0-9]*)*[A-Za-z~]","\\x1bO[A-Za-z]","\\x1b[\\x00-\\x7F]","\\x1b\\x1b","$"].map((Z)=>(?:${Z})).join("|")+")","s"),c05=new RegExp("(.*?)("+["\\x1 | ... truncated 640 | )W.name="enter";else if(Z==="\t")W.name="tab";else if(Z==="\b"||Z==="\x1B\b")W.name="backspace",W.meta=Z.charAt(0)==="\x1B";else if(Z==="\x7F"||Z==="\x1B\x7F")W.name="backspace",W.meta=Z.charAt(0)==="\x1B";else if(Z==="\x1B"||Z==="\x1B\x1B")W.name="escape",W.meta=Z.length===2;else if(Z===" "||Z==="\x1B ")W.name="space",W.meta=Z.length===2;else if(Z==="\x1F")W.name="_",W.ctrl=!0;else if(Z<="\x1A"&&Z.length===1)W.name=String.fromCharCode(Z.charCodeAt(0)+97-1),W.ctrl=!0;else if(Z.length===1&&Z>="0"&&Z<="9")W.name="number";else if(Z.length===1&&Z>="a"&&Z<="z")W.name=Z;else if(Z.length===1&&Z>="A"&&Z<="Z")W.name=Z.toLowerCase(),W.shift=!0;else if(G=h05.exec(Z))W.meta=!0,W.shift=/^[A-Z]$/.test(G[1]);else if(G=g05.exec(Z)){let Y=[...Z];if(Y[0]==="\x1B"&&Y[1]==="\x1B")W.option=!0;let X=[G[1],G[2],G[4],G[6]].filter(Boolean).join(""),B=(G[3]||G[5]||1)-1;W.ctrl=!!(B&4),W.meta=!!(B&10),W.shift=!!(B&1),W.code=X,W.name=MtZ[X],W.shift=p05(X)||W.shift,W.ctrl=n05(X)||W.ctrl}if(W.raw==="\x1Bb")W.meta=!0,W.name="left";else if( | ... truncated
641 | Read about how to prevent this error on https://github.com/vadimdemedes/ink/#israwmodesupported`);else throw new Error(Raw mode is not supported on the stdin provided to Ink. 642 | Read about how to prevent this error on https://github.com/vadimdemedes/ink/#israwmodesupported);if(G.setEncoding("utf8"),Z){if(this.rawModeEnabledCount===0)G.ref(),G.setRawMode(!0),G.addListener("readable",this.handleReadable),this.props.stdout.write("\x1B[?2004h");this.rawModeEnabledCount++;return}if(--this.rawModeEnabledCount===0)this.props.stdout.write("\x1B[?2004l"),G.setRawMode(!1),G.removeListener("readable",this.handleReadable),G.unref()};flushIncomplete=()=>{if(this.incompleteEscapeTimer=null,!this.keyParseState.incomplete)return;this.processInput(null)};processInput=(Z)=>{let[G,W]=EtZ(this.keyParseState,Z);this.keyParseState=W;for(let Y of G)this.handleInput(Y.sequence),this.internal_eventEmitter.emit("input",Y);if(this.keyParseState.incomplete){if(this.incompleteEscapeTimer)clearTimeout(this.incompleteEscapeTimer);this.incompleteEscapeTimer=setTimeout(this.flushIncomplete,this.keyParseState.mode==="IN_PASTE"?this.PASTE_TIMEOUT:this.NORMAL_TIMEOUT)}};handleReadable=()=>{let Z;while((Z=this.props.st | ... truncated

TypeError: G.ref is not a function. (In 'G.ref()', 'G.ref' is undefined)
at handleSetRawMode (/$bunfs/root/claude:642:164)

ESPIPE: invalid seek, read
fd: 22,
syscall: "read",
errno: -29,
code: "ESPIPE"

  at spawnSync (node:child_process:226:22)

Bun v1.2.19 (Linux x64 baseline)

[notdp]

Hi @jocenunes, thanks for the additional context. Let me update my previous response with a more accurate description:

This appears to be a TTY configuration issue. The Claude CLI requires a TTY terminal for its interactive mode, but your VS Code's default terminal might not be providing proper TTY support on Linux.

Could you help me gather some information to debug this?

1. VS Code and terminal info:

code --version
tty
echo $TERM

2. Test Claude CLI directly:

# In system terminal
claude "hello"

# In VS Code integrated terminal  
claude "hello"

# Check if stdin is TTY
node -e "console.log(process.stdin.isTTY)"

3. VS Code terminal settings (search these in settings):

• terminal.integrated.inheritEnv
• terminal.integrated.shell.linux
• terminal.integrated.defaultProfile.linux

This information will help me implement a proper fix for Linux systems.