JuliusBrussee/caveman · error · Error

assemble requires model and sessionId

Error message

assemble requires model and sessionId

What it means

Error "assemble requires model and sessionId" thrown in JuliusBrussee/caveman.

Source

Thrown at packages/sdk/typescript/src/index.ts:1804

  return {
    items: selectedIDs.map((id) => byID.get(id)!),
    tokensUsed,
    tokensBefore,
    tokensSaved,
    deferredCount,
    deferredIds: [...deferredIDs],
    basis: "inferred"
  };
}

const assemblyHashLedgers = new WeakMap<Cave, Map<string, string>>();
const assemblyRequestHeaders = new WeakMap<object, string>();

function assemble(cave: Cave, options: AssembleOptions): AssemblyResult {
  const provider = options.provider.trim().toLowerCase();
  const emitCacheHints = options.emitCacheHints ?? "gateway";
  if (!options.model || !options.sessionId) throw new Error("assemble requires model and sessionId");
  if (!["gateway", "self", "none"].includes(emitCacheHints)) {
    throw new Error(`unknown emitCacheHints value ${JSON.stringify(emitCacheHints)}`);
  }

  const ids = new Set<string>();
  let ledger = assemblyHashLedgers.get(cave);
  if (!ledger) {
    ledger = new Map<string, string>();
    assemblyHashLedgers.set(cave, ledger);
  }
  const normalized = options.slots.map((slot) => {
    if (!slot.id || ids.has(slot.id)) throw new Error(`assembly slot id must be non-empty and unique: ${JSON.stringify(slot.id)}`);
    ids.add(slot.id);
    if (!["stable", "session", "volatile"].includes(slot.stability)) {
      throw new Error(`assembly slot ${JSON.stringify(slot.id)} has unknown stability ${JSON.stringify(slot.stability)}`);
    }
    let contentJSON: string;
    try {

View on GitHub (pinned to 27d5a3981a)

Solutions

1. Pass both model and sessionId to assemble.

When it happens

Trigger: Thrown at packages/sdk/typescript/src/index.ts:1804 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of JuliusBrussee/caveman@27d5a3981a (2026-08-15). Data as JSON: /api/errors/aad2b69018dfc5cb. Report an issue: GitHub.