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support appending content to the system prompt via cli argument
This commit is contained in:
Markus Ylisiurunen
parent
029a04c43b
commit
ef8bb6c062
2 changed files with 62 additions and 50 deletions
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@ -45,6 +45,7 @@ interface Args {
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model?: string;
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apiKey?: string;
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systemPrompt?: string;
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appendSystemPrompt?: string;
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thinking?: ThinkingLevel;
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continue?: boolean;
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resume?: boolean;
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@ -88,6 +89,8 @@ function parseArgs(args: string[]): Args {
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result.apiKey = args[++i];
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} else if (arg === "--system-prompt" && i + 1 < args.length) {
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result.systemPrompt = args[++i];
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} else if (arg === "--append-system-prompt" && i + 1 < args.length) {
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result.appendSystemPrompt = args[++i];
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} else if (arg === "--no-session") {
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result.noSession = true;
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} else if (arg === "--session" && i + 1 < args.length) {
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@ -231,22 +234,23 @@ ${chalk.bold("Usage:")}
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${APP_NAME} [options] [@files...] [messages...]
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${chalk.bold("Options:")}
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--provider <name> Provider name (default: google)
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--model <id> Model ID (default: gemini-2.5-flash)
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--api-key <key> API key (defaults to env vars)
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--system-prompt <text> System prompt (default: coding assistant prompt)
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--mode <mode> Output mode: text (default), json, or rpc
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--print, -p Non-interactive mode: process prompt and exit
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--continue, -c Continue previous session
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--resume, -r Select a session to resume
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--session <path> Use specific session file
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--no-session Don't save session (ephemeral)
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--models <patterns> Comma-separated model patterns for quick cycling with Ctrl+P
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--tools <tools> Comma-separated list of tools to enable (default: read,bash,edit,write)
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Available: read, bash, edit, write, grep, find, ls
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--thinking <level> Set thinking level: off, minimal, low, medium, high
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--export <file> Export session file to HTML and exit
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--help, -h Show this help
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--provider <name> Provider name (default: google)
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--model <id> Model ID (default: gemini-2.5-flash)
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--api-key <key> API key (defaults to env vars)
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--system-prompt <text> System prompt (default: coding assistant prompt)
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--append-system-prompt <text> Append text or file contents to the system prompt
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--mode <mode> Output mode: text (default), json, or rpc
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--print, -p Non-interactive mode: process prompt and exit
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--continue, -c Continue previous session
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--resume, -r Select a session to resume
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--session <path> Use specific session file
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--no-session Don't save session (ephemeral)
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--models <patterns> Comma-separated model patterns for quick cycling with Ctrl+P
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--tools <tools> Comma-separated list of tools to enable (default: read,bash,edit,write)
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Available: read, bash, edit, write, grep, find, ls
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--thinking <level> Set thinking level: off, minimal, low, medium, high
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--export <file> Export session file to HTML and exit
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--help, -h Show this help
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${chalk.bold("Examples:")}
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# Interactive mode
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@ -320,32 +324,47 @@ const toolDescriptions: Record<ToolName, string> = {
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ls: "List directory contents",
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};
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function buildSystemPrompt(customPrompt?: string, selectedTools?: ToolName[]): string {
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// Check if customPrompt is a file path that exists
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if (customPrompt && existsSync(customPrompt)) {
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function resolvePromptInput(input: string | undefined, description: string): string | undefined {
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if (!input) {
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return undefined;
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}
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if (existsSync(input)) {
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try {
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customPrompt = readFileSync(customPrompt, "utf-8");
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return readFileSync(input, "utf-8");
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} catch (error) {
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console.error(chalk.yellow(`Warning: Could not read system prompt file ${customPrompt}: ${error}`));
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// Fall through to use as literal string
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console.error(chalk.yellow(`Warning: Could not read ${description} file ${input}: ${error}`));
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return input;
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}
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}
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if (customPrompt) {
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// Use custom prompt as base, then add context/datetime
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const now = new Date();
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const dateTime = now.toLocaleString("en-US", {
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weekday: "long",
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year: "numeric",
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month: "long",
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day: "numeric",
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hour: "2-digit",
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minute: "2-digit",
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second: "2-digit",
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timeZoneName: "short",
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});
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return input;
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}
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let prompt = customPrompt;
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function buildSystemPrompt(customPrompt?: string, selectedTools?: ToolName[], appendSystemPrompt?: string): string {
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const resolvedCustomPrompt = resolvePromptInput(customPrompt, "system prompt");
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const resolvedAppendPrompt = resolvePromptInput(appendSystemPrompt, "append system prompt");
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const now = new Date();
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const dateTime = now.toLocaleString("en-US", {
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weekday: "long",
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year: "numeric",
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month: "long",
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day: "numeric",
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hour: "2-digit",
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minute: "2-digit",
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second: "2-digit",
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timeZoneName: "short",
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});
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const appendSection = resolvedAppendPrompt ? `\n\n${resolvedAppendPrompt}` : "";
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if (resolvedCustomPrompt) {
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let prompt = resolvedCustomPrompt;
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if (appendSection) {
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prompt += appendSection;
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}
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// Append project context files
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const contextFiles = loadProjectContextFiles();
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@ -364,18 +383,6 @@ function buildSystemPrompt(customPrompt?: string, selectedTools?: ToolName[]): s
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return prompt;
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}
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const now = new Date();
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const dateTime = now.toLocaleString("en-US", {
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weekday: "long",
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year: "numeric",
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month: "long",
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day: "numeric",
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hour: "2-digit",
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minute: "2-digit",
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second: "2-digit",
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timeZoneName: "short",
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});
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// Get absolute path to README.md
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const readmePath = getReadmePath();
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@ -453,6 +460,10 @@ Documentation:
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- Your own documentation (including custom model setup and theme creation) is at: ${readmePath}
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- Read it when users ask about features, configuration, or setup, and especially if the user asks you to add a custom model or provider, or create a custom theme.`;
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if (appendSection) {
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prompt += appendSection;
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}
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// Append project context files
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const contextFiles = loadProjectContextFiles();
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if (contextFiles.length > 0) {
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@ -1138,7 +1149,7 @@ export async function main(args: string[]) {
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}
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}
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const systemPrompt = buildSystemPrompt(parsed.systemPrompt, parsed.tools);
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const systemPrompt = buildSystemPrompt(parsed.systemPrompt, parsed.tools, parsed.appendSystemPrompt);
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// Load previous messages if continuing or resuming
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// This may update initialModel if restoring from session
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