feat: add /debug runtime overrides

src/auto-reply/commands-registry.test.ts

@@ -26,6 +26,7 @@ describe("commands registry", () => {
     expect(detection.regex.test("/status:")).toBe(true);
     expect(detection.regex.test("/stop")).toBe(true);
     expect(detection.regex.test("/send:")).toBe(true);
+    expect(detection.regex.test("/debug set foo=bar")).toBe(true);
     expect(detection.regex.test("/models")).toBe(true);
     expect(detection.regex.test("/models list")).toBe(true);
     expect(detection.regex.test("try /status")).toBe(false);

src/auto-reply/commands-registry.ts

@@ -27,6 +27,13 @@ const CHAT_COMMANDS: ChatCommandDefinition[] = [
     description: "Show current status.",
     textAliases: ["/status"],
   },
+  {
+    key: "debug",
+    nativeName: "debug",
+    description: "Set runtime debug overrides.",
+    textAliases: ["/debug"],
+    acceptsArgs: true,
+  },
   {
     key: "cost",
     nativeName: "cost",

src/auto-reply/reply/commands.ts

@@ -40,6 +40,12 @@ import { enqueueSystemEvent } from "../../infra/system-events.js";
 import { parseAgentSessionKey } from "../../routing/session-key.js";
 import { resolveSendPolicy } from "../../sessions/send-policy.js";
 import { normalizeE164 } from "../../utils.js";
+import {
+  getConfigOverrides,
+  resetConfigOverrides,
+  setConfigOverride,
+  unsetConfigOverride,
+} from "../../config/runtime-overrides.js";
 import { resolveCommandAuthorization } from "../command-auth.js";
 import {
   normalizeCommandBody,
@@ -65,6 +71,7 @@ import type {
 } from "../thinking.js";
 import type { ReplyPayload } from "../types.js";
 import { isAbortTrigger, setAbortMemory } from "./abort.js";
+import { parseDebugCommand } from "./debug-commands.js";
 import type { InlineDirectives } from "./directive-handling.js";
 import { stripMentions, stripStructuralPrefixes } from "./mentions.js";
 import { getFollowupQueueDepth, resolveQueueSettings } from "./queue.js";
@@ -609,6 +616,81 @@ export async function handleCommands(params: {
     return { shouldContinue: false, reply };
   }
 
+  const debugCommand = allowTextCommands
+    ? parseDebugCommand(command.commandBodyNormalized)
+    : null;
+  if (debugCommand) {
+    if (!command.isAuthorizedSender) {
+      logVerbose(
+        `Ignoring /debug from unauthorized sender: ${command.senderE164 || "<unknown>"}`,
+      );
+      return { shouldContinue: false };
+    }
+    if (debugCommand.action === "error") {
+      return { shouldContinue: false, reply: { text: `⚠️ ${debugCommand.message}` } };
+    }
+    if (debugCommand.action === "show") {
+      const overrides = getConfigOverrides();
+      const hasOverrides = Object.keys(overrides).length > 0;
+      if (!hasOverrides) {
+        return {
+          shouldContinue: false,
+          reply: { text: "⚙️ Debug overrides: (none)" },
+        };
+      }
+      const json = JSON.stringify(overrides, null, 2);
+      return {
+        shouldContinue: false,
+        reply: { text: `⚙️ Debug overrides (memory-only):\n\`\`\`json\n${json}\n\`\`\`` },
+      };
+    }
+    if (debugCommand.action === "reset") {
+      resetConfigOverrides();
+      return {
+        shouldContinue: false,
+        reply: { text: "⚙️ Debug overrides cleared; using config on disk." },
+      };
+    }
+    if (debugCommand.action === "unset") {
+      const result = unsetConfigOverride(debugCommand.path);
+      if (!result.ok) {
+        return {
+          shouldContinue: false,
+          reply: { text: `⚠️ ${result.error ?? "Invalid path."}` },
+        };
+      }
+      if (!result.removed) {
+        return {
+          shouldContinue: false,
+          reply: { text: `⚙️ No debug override found for ${debugCommand.path}.` },
+        };
+      }
+      return {
+        shouldContinue: false,
+        reply: { text: `⚙️ Debug override removed for ${debugCommand.path}.` },
+      };
+    }
+    if (debugCommand.action === "set") {
+      const result = setConfigOverride(debugCommand.path, debugCommand.value);
+      if (!result.ok) {
+        return {
+          shouldContinue: false,
+          reply: { text: `⚠️ ${result.error ?? "Invalid override."}` },
+        };
+      }
+      const valueLabel =
+        typeof debugCommand.value === "string"
+          ? `"${debugCommand.value}"`
+          : JSON.stringify(debugCommand.value);
+      return {
+        shouldContinue: false,
+        reply: {
+          text: `⚙️ Debug override set: ${debugCommand.path}=${valueLabel ?? "null"}`,
+        },
+      };
+    }
+  }
+
   const stopRequested = command.commandBodyNormalized === "/stop";
   if (allowTextCommands && stopRequested) {
     if (!command.isAuthorizedSender) {

src/auto-reply/reply/debug-commands.test.ts

@@ -0,0 +1,21 @@
+import { describe, expect, it } from "vitest";
+
+import { parseDebugCommand } from "./debug-commands.js";
+
+describe("parseDebugCommand", () => {
+  it("parses show/reset", () => {
+    expect(parseDebugCommand("/debug")).toEqual({ action: "show" });
+    expect(parseDebugCommand("/debug show")).toEqual({ action: "show" });
+    expect(parseDebugCommand("/debug reset")).toEqual({ action: "reset" });
+  });
+
+  it("parses set with JSON", () => {
+    const cmd = parseDebugCommand('/debug set foo={"a":1}');
+    expect(cmd).toEqual({ action: "set", path: "foo", value: { a: 1 } });
+  });
+
+  it("parses unset", () => {
+    const cmd = parseDebugCommand("/debug unset foo.bar");
+    expect(cmd).toEqual({ action: "unset", path: "foo.bar" });
+  });
+});

src/auto-reply/reply/debug-commands.ts

@@ -0,0 +1,98 @@
+export type DebugCommand =
+  | { action: "show" }
+  | { action: "reset" }
+  | { action: "set"; path: string; value: unknown }
+  | { action: "unset"; path: string }
+  | { action: "error"; message: string };
+
+function parseDebugValue(raw: string): { value?: unknown; error?: string } {
+  const trimmed = raw.trim();
+  if (!trimmed) return { error: "Missing value." };
+
+  if (trimmed.startsWith("{") || trimmed.startsWith("[")) {
+    try {
+      return { value: JSON.parse(trimmed) };
+    } catch (err) {
+      return { error: `Invalid JSON: ${String(err)}` };
+    }
+  }
+
+  if (trimmed === "true") return { value: true };
+  if (trimmed === "false") return { value: false };
+  if (trimmed === "null") return { value: null };
+
+  if (/^-?\d+(\.\d+)?$/.test(trimmed)) {
+    const num = Number(trimmed);
+    if (Number.isFinite(num)) return { value: num };
+  }
+
+  if (
+    (trimmed.startsWith("\"") && trimmed.endsWith("\"")) ||
+    (trimmed.startsWith("'") && trimmed.endsWith("'"))
+  ) {
+    try {
+      return { value: JSON.parse(trimmed) };
+    } catch {
+      const unquoted = trimmed.slice(1, -1);
+      return { value: unquoted };
+    }
+  }
+
+  return { value: trimmed };
+}
+
+export function parseDebugCommand(raw: string): DebugCommand | null {
+  const trimmed = raw.trim();
+  if (!trimmed.toLowerCase().startsWith("/debug")) return null;
+  const rest = trimmed.slice("/debug".length).trim();
+  if (!rest) return { action: "show" };
+
+  const match = rest.match(/^(\S+)(?:\s+([\s\S]+))?$/);
+  if (!match) return { action: "error", message: "Invalid /debug syntax." };
+  const action = match[1].toLowerCase();
+  const args = (match[2] ?? "").trim();
+
+  switch (action) {
+    case "show":
+      return { action: "show" };
+    case "reset":
+      return { action: "reset" };
+    case "unset": {
+      if (!args) return { action: "error", message: "Usage: /debug unset path" };
+      return { action: "unset", path: args };
+    }
+    case "set": {
+      if (!args) {
+        return {
+          action: "error",
+          message: "Usage: /debug set path=value",
+        };
+      }
+      const eqIndex = args.indexOf("=");
+      if (eqIndex <= 0) {
+        return {
+          action: "error",
+          message: "Usage: /debug set path=value",
+        };
+      }
+      const path = args.slice(0, eqIndex).trim();
+      const rawValue = args.slice(eqIndex + 1);
+      if (!path) {
+        return {
+          action: "error",
+          message: "Usage: /debug set path=value",
+        };
+      }
+      const parsed = parseDebugValue(rawValue);
+      if (parsed.error) {
+        return { action: "error", message: parsed.error };
+      }
+      return { action: "set", path, value: parsed.value };
+    }
+    default:
+      return {
+        action: "error",
+        message: "Usage: /debug show|set|unset|reset",
+      };
+  }
+}

src/auto-reply/status.ts

@@ -357,6 +357,6 @@ export function buildHelpMessage(): string {
   return [
     "ℹ️ Help",
     "Shortcuts: /new reset | /compact [instructions] | /restart relink (if enabled)",
-    "Options: /think <level> | /verbose on|off | /reasoning on|off | /elevated on|off | /model <id> | /cost on|off",
+    "Options: /think <level> | /verbose on|off | /reasoning on|off | /elevated on|off | /model <id> | /cost on|off | /debug show",
   ].join("\n");
 }

src/config/config.ts

@@ -7,6 +7,7 @@ export {
 } from "./io.js";
 export { migrateLegacyConfig } from "./legacy-migrate.js";
 export * from "./paths.js";
+export * from "./runtime-overrides.js";
 export * from "./types.js";
 export { validateConfigObject } from "./validation.js";
 export { ClawdbotSchema } from "./zod-schema.js";

src/config/io.ts

@@ -26,6 +26,7 @@ import {
   resolveConfigPath,
   resolveStateDir,
 } from "./paths.js";
+import { applyConfigOverrides } from "./runtime-overrides.js";
 import type {
   ClawdbotConfig,
   ConfigFileSnapshot,
@@ -195,7 +196,7 @@ export function createConfigIO(overrides: ConfigIoDeps = {}) {
         });
       }
 
-      return cfg;
+      return applyConfigOverrides(cfg);
     } catch (err) {
       if (err instanceof DuplicateAgentDirError) {
         deps.logger.error(err.message);

src/config/runtime-overrides.test.ts

@@ -0,0 +1,43 @@
+import { describe, expect, it, beforeEach } from "vitest";
+
+import type { ClawdbotConfig } from "./types.js";
+import {
+  applyConfigOverrides,
+  getConfigOverrides,
+  resetConfigOverrides,
+  setConfigOverride,
+  unsetConfigOverride,
+} from "./runtime-overrides.js";
+
+describe("runtime overrides", () => {
+  beforeEach(() => {
+    resetConfigOverrides();
+  });
+
+  it("sets and applies nested overrides", () => {
+    const cfg = {
+      messages: { responsePrefix: "[clawdbot]" },
+    } as ClawdbotConfig;
+    setConfigOverride("messages.responsePrefix", "[debug]");
+    const next = applyConfigOverrides(cfg);
+    expect(next.messages?.responsePrefix).toBe("[debug]");
+  });
+
+  it("merges object overrides without clobbering siblings", () => {
+    const cfg = {
+      whatsapp: { dmPolicy: "pairing", allowFrom: ["+1"] },
+    } as ClawdbotConfig;
+    setConfigOverride("whatsapp.dmPolicy", "open");
+    const next = applyConfigOverrides(cfg);
+    expect(next.whatsapp?.dmPolicy).toBe("open");
+    expect(next.whatsapp?.allowFrom).toEqual(["+1"]);
+  });
+
+  it("unsets overrides and prunes empty branches", () => {
+    setConfigOverride("whatsapp.dmPolicy", "open");
+    const removed = unsetConfigOverride("whatsapp.dmPolicy");
+    expect(removed.ok).toBe(true);
+    expect(removed.removed).toBe(true);
+    expect(Object.keys(getConfigOverrides()).length).toBe(0);
+  });
+});

src/config/runtime-overrides.ts

@@ -0,0 +1,112 @@
+import type { ClawdbotConfig } from "./types.js";
+
+type OverrideTree = Record<string, unknown>;
+
+let overrides: OverrideTree = {};
+
+function isPlainObject(value: unknown): value is Record<string, unknown> {
+  return (
+    typeof value === "object" &&
+    value !== null &&
+    !Array.isArray(value) &&
+    Object.prototype.toString.call(value) === "[object Object]"
+  );
+}
+
+function parsePath(raw: string): string[] | null {
+  const trimmed = raw.trim();
+  if (!trimmed) return null;
+  const parts = trimmed.split(".").map((part) => part.trim());
+  if (parts.some((part) => !part)) return null;
+  return parts;
+}
+
+function setOverrideAtPath(
+  root: OverrideTree,
+  path: string[],
+  value: unknown,
+): void {
+  let cursor: OverrideTree = root;
+  for (let idx = 0; idx < path.length - 1; idx += 1) {
+    const key = path[idx];
+    const next = cursor[key];
+    if (!isPlainObject(next)) {
+      cursor[key] = {};
+    }
+    cursor = cursor[key] as OverrideTree;
+  }
+  cursor[path[path.length - 1]] = value;
+}
+
+function unsetOverrideAtPath(root: OverrideTree, path: string[]): boolean {
+  const stack: Array<{ node: OverrideTree; key: string }> = [];
+  let cursor: OverrideTree = root;
+  for (let idx = 0; idx < path.length - 1; idx += 1) {
+    const key = path[idx];
+    const next = cursor[key];
+    if (!isPlainObject(next)) return false;
+    stack.push({ node: cursor, key });
+    cursor = next;
+  }
+  const leafKey = path[path.length - 1];
+  if (!(leafKey in cursor)) return false;
+  delete cursor[leafKey];
+  for (let idx = stack.length - 1; idx >= 0; idx -= 1) {
+    const { node, key } = stack[idx];
+    const child = node[key];
+    if (isPlainObject(child) && Object.keys(child).length === 0) {
+      delete node[key];
+    } else {
+      break;
+    }
+  }
+  return true;
+}
+
+function mergeOverrides(base: unknown, override: unknown): unknown {
+  if (!isPlainObject(base) || !isPlainObject(override)) return override;
+  const next: OverrideTree = { ...base };
+  for (const [key, value] of Object.entries(override)) {
+    if (value === undefined) continue;
+    next[key] = mergeOverrides((base as OverrideTree)[key], value);
+  }
+  return next;
+}
+
+export function getConfigOverrides(): OverrideTree {
+  return overrides;
+}
+
+export function resetConfigOverrides(): void {
+  overrides = {};
+}
+
+export function setConfigOverride(pathRaw: string, value: unknown): {
+  ok: boolean;
+  error?: string;
+} {
+  const path = parsePath(pathRaw);
+  if (!path) {
+    return { ok: false, error: "Invalid path. Use dot notation (e.g. foo.bar)." };
+  }
+  setOverrideAtPath(overrides, path, value);
+  return { ok: true };
+}
+
+export function unsetConfigOverride(pathRaw: string): {
+  ok: boolean;
+  removed: boolean;
+  error?: string;
+} {
+  const path = parsePath(pathRaw);
+  if (!path) {
+    return { ok: false, removed: false, error: "Invalid path." };
+  }
+  const removed = unsetOverrideAtPath(overrides, path);
+  return { ok: true, removed };
+}
+
+export function applyConfigOverrides(cfg: ClawdbotConfig): ClawdbotConfig {
+  if (!overrides || Object.keys(overrides).length === 0) return cfg;
+  return mergeOverrides(cfg, overrides) as ClawdbotConfig;
+}