improvement: added settings.json support for dynamic llama.cpp flags

Makefile

@@ -6,8 +6,8 @@ LLM_FLAGS=--no-display-prompt -no-cnv --simple-io
 SHELL=/bin/bash -x
 
 
-agent_message.txt: llm_chat.php consolidated_system_message.txt user_message.txt
-	php $^ | $(LLM_BIN) -m $(LLM_MODEL) -f /dev/stdin $(LLM_FLAGS) 2> /dev/null | sed -e 's/\[end of text\]//' | tee $@
+agent_message.txt: llm_chat.php consolidated_system_message.txt user_message.txt settings.json settings_to_flags.php
+	php $^ | $(LLM_BIN) -m $(LLM_MODEL) -f /dev/stdin $(LLM_FLAGS) `php settings_to_flags.php` 2> /dev/null | sed -e 's/\[end of text\]//' | tee $@
 
 consolidated_system_message.txt: $(wildcard *.sys)
 	cat $^ > $@

settings.json

@@ -0,0 +1 @@
+{}

settings_to_flags.php

@@ -0,0 +1,90 @@
+#!/usr/bin/php
+<?php
+// Reads settings.json (if present) and prints extra llama.cpp flags.
+// Supports both OpenAI-style and llama.cpp-style names.
+// Example settings.json:
+// {
+//   "flags": {
+//     "temperature": 0.7,
+//     "max_output_tokens": 256,
+//     "top_p": 0.9,
+//     "repeat_penalty": 1.1,
+//     "seed": 42,
+//     "mirostat": 2
+//   },
+//   "raw": ["--no-penalize-nl"]
+// }
+
+$path = __DIR__ . '/settings.json';
+if (!file_exists($path)) {
+    // No settings file -> no extra flags
+    exit(0);
+}
+
+$json = json_decode(file_get_contents($path), true);
+if (!is_array($json)) {
+    fwrite(STDERR, "settings.json is not valid JSON\n");
+    exit(0);
+}
+
+$flags = isset($json['flags']) && is_array($json['flags']) ? $json['flags'] : [];
+$raw   = isset($json['raw']) && is_array($json['raw']) ? $json['raw'] : [];
+
+// Normalize keys: strip leading dashes, kebab→snake, lowercase
+$norm = function(string $k): string {
+    $k = ltrim($k, '-');
+    $k = strtolower(str_replace('-', '_', $k));
+    return $k;
+};
+
+// Map high-level keys to llama.cpp flags.
+// Add more as needed.
+$map = [
+    'temperature'       => '--temp',
+    'temp'              => '--temp',
+    'max_output_tokens' => '-n',
+    'n_predict'         => '-n',
+    'top_p'             => '--top-p',
+    'top_k'             => '--top-k',
+    'repeat_penalty'    => '--repeat-penalty',
+    'presence_penalty'  => '--presence-penalty',
+    'frequency_penalty' => '--frequency-penalty',
+    'seed'              => '--seed',
+    'ctx'               => '-c',
+    'context_size'      => '-c',
+    'mirostat'          => '--mirostat',
+    'mirostat_tau'      => '--mirostat-tau',
+    'mirostat_eta'      => '--mirostat-eta',
+];
+
+$out = [];
+
+// Structured flags
+foreach ($flags as $key => $val) {
+    $k = $norm($key);
+    if (!isset($map[$k])) {
+        // Unknown key: ignore silently (or push to raw if you prefer)
+        continue;
+    }
+    $flag = $map[$k];
+
+    // Boolean flags: include only when true
+    if (is_bool($val)) {
+        if ($val) $out[] = $flag;
+        continue;
+    }
+
+    // Everything else: flag + value
+    // Use escapeshellarg for safety
+    $out[] = $flag . ' ' . escapeshellarg((string)$val);
+}
+
+// Raw passthrough flags (assumed already valid for llama.cpp)
+foreach ($raw as $r) {
+    if (is_string($r) && strlen(trim($r)) > 0) {
+        $out[] = $r;
+    }
+}
+
+// Print as a single line for easy inclusion in Makefile pipeline
+echo implode(' ', $out);