deepseek-ai/deepseek-harness · error · Error

typert-loader: ctx.baseUrl is unset — the loader needs the c

Error message

typert-loader: ctx.baseUrl is unset — the loader needs the config-tree anchor to resolve plugin packages

What it means

Error "typert-loader: ctx.baseUrl is unset — the loader needs the config-tree anchor to resolve plugin packages" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/typert/loader/src/index.ts:290

    || !('_zod' in codec.schema)
    || typeof (codec.schema as { parse?: unknown }).parse !== 'function') {
    throw new Error(`typert-loader: ${pkgName} ${subject} is not backed by a zod v4 schema`)
  }
}

/**
 * Scan current Loader entries during activation, then follow entry mounts and
 * unmounts for this plugin's lifetime.
 * @param ctx - plugin context carrying `typert` and `loader`.
 * @param config - explicit package artifacts in addition to Loader entries.
 */
export async function apply(ctx: Context, config: Config): Promise<void> {
  // Resolution anchor: the config tree's baseUrl (the cordis.yml directory,
  // whose package declares every composed plugin as a dependency). This
  // package's own URL would miss sibling packages under pnpm's isolated
  // node_modules.
  if (ctx.baseUrl === undefined) {
    throw new Error('typert-loader: ctx.baseUrl is unset — the loader needs the config-tree anchor to resolve plugin packages')
  }
  const require = createRequire(ctx.baseUrl)
  const configured = new Set((config as ResolvedConfig).packages)

  // Registered contributions by entry name; the disposer withdraws the entry's registration.
  const registered = new Map<string, () => Promise<void>>()
  // In-flight import/register tasks by entry name.
  const pending = new Map<string, Promise<void>>()
  // Artifact paths by package name. Negative verdicts (unresolvable specifier —
  // loader builtins, subpath rows — or no typert export) are cached as null and
  // never expire: plugin-set changes take effect on restart.
  const artifactPath = new Map<string, string | null>()
  // Imported+validated manifests by package name (one import per package per process).
  const manifests = new Map<string, Promise<TypertContribution>>()
  const dirty = new Set<string>()
  let flushQueued = false
  let active = true
  ctx.effect(function* () {

View on GitHub (pinned to b150a551b8)

Solutions

1. Set ctx.baseUrl by loading the config through the standard cordis loader so the config-tree anchor exists.

When it happens

Trigger: Thrown at packages/typert/loader/src/index.ts:290 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of deepseek-ai/deepseek-harness@b150a551b8 (2026-08-24). Data as JSON: /api/errors/92684ea038898a71. Report an issue: GitHub.