deepseek-ai/deepseek-harness · error · PresetNotWritableError

agent-preset-read-only

agent-preset-read-only

Error message

agent-presets: preset "${presetId}" cannot be written: it ships with the deployment

What it means

Error "agent-presets: preset "${presetId}" cannot be written: it ships with the deployment" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/host/apiproxy/src/api-proxy.ts:3080

        try {
          await presets.copy(from, agentPreset, name)
          return ok(request, { agentPreset })
        } catch (error: unknown) {
          return err(request, presetError(agentPreset, error))
        }
      },

      async openDocument(request, signal) {
        const { agentPreset } = request.payload
        const presets = ctx.get('agentPresets')
        if (presets === undefined) return err(request, noRoster(agentPreset))
        try {
          const preset = await presets.resolve(agentPreset)
          // Same line as copy/remove draw: the shipped install is not the
          // user's to manage, and pointing an editor into it invites edits an
          // upgrade will silently overwrite.
          if (preset.trust !== 'user') {
            throw new PresetNotWritableError(preset.id, 'it ships with the deployment')
          }
          // The id resolved against the Host's own roots is what selects the
          // directory — no browser payload carries a path in either direction
          // unless the deployment has no opener to hand it to.
          const directory = dirname(preset.path)
          if (!canOpenPaths()) return ok(request, { opened: false as const, path: directory })
          return await openPath(request, directory, signal)
        } catch (error: unknown) {
          return err(request, presetError(agentPreset, error))
        }
      },

      async remove(request) {
        const { agentPreset } = request.payload
        const presets = ctx.get('agentPresets')
        if (presets === undefined) return err(request, noRoster(agentPreset))
        try {
          await presets.remove(agentPreset)

View on GitHub (pinned to b150a551b8)

When it happens

Trigger: Thrown at packages/host/apiproxy/src/api-proxy.ts:3080 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/030171f467d3c480. Report an issue: GitHub.