Mintplex-Labs/anything-llm · error

Title is required and must be lowercase with underscores onl

Error message

Title is required and must be lowercase with underscores only.

What it means

Validation error propagated from ModelRouterRule.create: the rule title failed the slug-like format check — titles must be lowercase letters with underscores only — so the rule is rejected as malformed.

Source

Thrown at server/endpoints/modelRouter.js:126

      }
    }
  );

  app.post(
    "/model-routers/:id/rules/new",
    [validatedRequest, flexUserRoleValid([ROLES.admin])],
    async (request, response) => {
      try {
        const { id } = request.params;
        const user = await userFromSession(request, response);
        const data = reqBody(request);
        const routerId = Number(id);
        const { rule, error } = await ModelRouterRule.create(
          routerId,
          data,
          user?.id || null
        );
        if (error) return response.status(400).json({ rule, error });

        await Telemetry.sendTelemetry("model_router_rule_created");
        ModelRouterService.invalidateRouter(routerId);
        return response.status(200).json({ rule });
      } catch (e) {
        console.error(e);
        response.sendStatus(500);
      }
    }
  );

  app.put(
    "/model-routers/:id/rules/reorder",
    [validatedRequest, flexUserRoleValid([ROLES.admin])],
    async (request, response) => {
      try {
        const { id } = request.params;
        const { ruleUpdates } = reqBody(request);

View on GitHub (pinned to 3aec848f28)

Solutions

1. Provide a rule title using lowercase letters and underscores only.
2. Example valid title: 'code_queries'.

When it happens

Trigger: Thrown at server/endpoints/modelRouter.js:126 when the library encounters an invalid state.

Common situations: Creating a routing rule with a missing or improperly formatted title.

AI-assisted analysis of Mintplex-Labs/anything-llm@3aec848f28 (2026-08-18). Data as JSON: /api/errors/d7e7fdc2532af020. Report an issue: GitHub.