affaan-m/ECC · error · Error

${label} is too long (maximum ${maxChars} characters).

Error message

${label} is too long (maximum ${maxChars} characters).

What it means

Thrown by asNonEmptyString() when the trimmed string exceeds maxChars (default 10000; titles use 200, enums 64, ids 132). The bound is set per field to keep memory documents small and indexable.

Source

Thrown at scripts/lib/memory-vault-format.js:83

    const allowedWhitespace = allowBodyWhitespace
      && (codePoint === 0x09 || codePoint === 0x0a || codePoint === 0x0d);
    const isControl = (codePoint <= 0x1f && !allowedWhitespace)
      || (codePoint >= 0x7f && codePoint <= 0x9f);
    const isBidirectionalFormatting = (
      (codePoint >= 0x202a && codePoint <= 0x202e)
      || (codePoint >= 0x2066 && codePoint <= 0x2069)
    );
    return isControl || isBidirectionalFormatting;
  });
}

function asNonEmptyString(value, label, maxChars = 10_000) {
  if (typeof value !== 'string' || value.trim().length === 0) {
    throw new Error(`${label} must be a non-empty string.`);
  }
  const normalized = value.trim();
  if (normalized.length > maxChars) {
    throw new Error(`${label} is too long (maximum ${maxChars} characters).`);
  }
  if (hasUnsafeControlCharacters(normalized)) {
    throw new Error(`${label} must not contain control or bidirectional formatting characters.`);
  }
  return normalized;
}

function validateEnum(value, allowed, label) {
  const normalized = asNonEmptyString(value, label, 64);
  if (!allowed.includes(normalized)) {
    throw new Error(`${label} must be one of: ${allowed.join(', ')}.`);
  }
  return normalized;
}

function validateSlug(value, label) {
  const normalized = asNonEmptyString(value, label, 64);
  if (!SLUG_PATTERN.test(normalized)) {

View on GitHub (pinned to 01e15490f0)

Solutions

1. Trim or summarize the value to fit the documented per-field limit.
2. Move long content into the body field (which uses a much larger byte limit) rather than the title.
3. Check the label in the error to identify the field and its cap.

Example fix

// before
asNonEmptyString(longParagraph, 'title', 200);
// after
asNonEmptyString(longParagraph.slice(0, 180).trim() + '...', 'title', 200);

function fitsMaxChars(value, maxChars) {
  return typeof value === 'string' && value.trim().length <= maxChars;
}
if (!fitsMaxChars(title, 200)) {
  throw new Error(`title exceeds 200 characters (got ${title.trim().length}).`);
}

function isWithinLength(value, maxChars) {
  return typeof value === 'string' && value.trim().length <= maxChars;
}

try {
  result = asNonEmptyString(value, label, maxChars);
} catch (e) {
  if (/is too long/.test(e.message)) {
    result = asNonEmptyString(value.slice(0, maxChars - 1).trim() + '…', label, maxChars);
  } else throw e;
}

When it happens

Trigger: Submitting a title longer than 200 characters, a slug longer than 64, or a body/memory id beyond its specific cap.

Common situations: Pasting a long paragraph into a title field; auto-generated content that concatenates many values; a slug derived from an unbounded source.

Related errors

• ${label} must be a non-empty string.
• ${label} must not contain control or bidirectional formattin
• ${label} must be one of: ${allowed.join(', ')}.
• ${label} must be a lowercase letters/numbers slug.
• memory id must match mem_<lowercase-id> and cannot contain a

AI-assisted analysis of affaan-m/ECC@01e15490f0 (2026-08-13). Data as JSON: /api/errors/09b553013bc588a1. Report an issue: GitHub.