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fix: resolve Claude CLI --system-prompt flag error by passing via stdin

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- Remove --system-prompt command line argument for all platforms
- Pass system prompt and messages together via stdin (like Windows)
- Update tests to reflect unified stdin behavior across platforms
- Fixes #6534 where Claude CLI was failing with exit code 1
This commit is contained in:
Roo Code 2025-08-01 03:28:23 +00:00
parent 836371c36a
commit 5ed76920ce
2 changed files with 13 additions and 25 deletions
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13
src/integrations/claude-code/__tests__/run.spec.ts
View file

@ -141,7 +141,7 @@ describe("runClaudeCode", () => {
expect(typeof result[Symbol.asyncIterator]).toBe("function")
})
test("should handle platform-specific stdin behavior", async () => {
test("should pass system prompt and messages via stdin for all platforms", async () => {
const { runClaudeCode } = await import("../run")
const messages = [{ role: "user" as const, content: "Hello world!" }]
const systemPrompt = "You are a helpful assistant"
@ -160,7 +160,7 @@ describe("runClaudeCode", () => {
results.push(chunk)
}
// On Windows, should NOT have --system-prompt in args
// Should NOT have --system-prompt in args
const [, args] = mockExeca.mock.calls[0]
expect(args).not.toContain("--system-prompt")
@ -181,13 +181,12 @@ describe("runClaudeCode", () => {
results2.push(chunk)
}
// On non-Windows, should have --system-prompt in args
// Should NOT have --system-prompt in args (same behavior for all platforms now)
const [, args2] = mockExeca.mock.calls[0]
expect(args2).toContain("--system-prompt")
expect(args2).toContain(systemPrompt)
expect(args2).not.toContain("--system-prompt")
// Should only pass messages via stdin
expect(mockStdin.write).toHaveBeenCalledWith(JSON.stringify(messages), "utf8", expect.any(Function))
// Should pass both system prompt and messages via stdin (same as Windows)
expect(mockStdin.write).toHaveBeenCalledWith(expectedStdinData, "utf8", expect.any(Function))
})
test("should include model parameter when provided", async () => {

25
src/integrations/claude-code/run.ts
View file

@ -151,16 +151,10 @@ function runProcess({
maxOutputTokens,
}: ClaudeCodeOptions & { maxOutputTokens?: number }) {
const claudePath = path || "claude"
const isWindows = os.platform() === "win32"
// Build args based on platform
// Build args - no longer passing system prompt as command line argument
const args = ["-p"]
// Pass system prompt as flag on non-Windows, via stdin on Windows (avoids cmd length limits)
if (!isWindows) {
args.push("--system-prompt", systemPrompt)
}
args.push(
"--verbose",
"--output-format",
@ -193,17 +187,12 @@ function runProcess({
timeout: CLAUDE_CODE_TIMEOUT,
})
// Prepare stdin data: Windows gets both system prompt & messages (avoids 8191 char limit),
// other platforms get messages only (avoids Linux E2BIG error from ~128KiB execve limit)
let stdinData: string
if (isWindows) {
stdinData = JSON.stringify({
systemPrompt,
messages,
})
} else {
stdinData = JSON.stringify(messages)
}
// Pass both system prompt and messages via stdin for all platforms
// This avoids command line argument issues with --system-prompt flag
const stdinData = JSON.stringify({
systemPrompt,
messages,
})
// Use setImmediate to ensure process is spawned before writing (prevents stdin race conditions)
setImmediate(() => {