deepseek-ai/deepseek-harness · error

agent-preset-not-found

agent-preset-not-found

Error message

unknown agent preset "${agentPreset}"

What it means

Error "unknown agent preset "${agentPreset}"" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/client/connection/src/client/fixture.ts:2812

      // preset differently from one the deployment vetted.
      list: request => ok(request, {
        presets: [...fixturePresets].map(([id, preset]) => ({
          id,
          trust: preset.trust,
          isDefault: id === fixtureDefaultPreset,
        })),
        authorable: true,
        hasDocument: true,
      }),
      select: (request) => {
        fixtureDefaultPreset = request.payload.agentPreset
        return ok(request, { agentPreset: request.payload.agentPreset })
      },
      read: (request) => {
        const { agentPreset } = request.payload
        const preset = fixturePresets.get(agentPreset)
        if (preset === undefined) {
          return err(request, {
            code: 'agent-preset-not-found',
            message: `unknown agent preset "${agentPreset}"`,
            details: { agentPreset, available: [...fixturePresets.keys()] },
          })
        }
        return ok(request, {
          agentPreset,
          trust: preset.trust,
          content: preset.content,
        })
      },
      copy: (request) => {
        const { from, agentPreset } = request.payload
        const source = fixturePresets.get(from)
        if (source === undefined) {
          return err(request, {
            code: 'agent-preset-not-found',
            message: `unknown agent preset "${from}"`,

View on GitHub (pinned to b150a551b8)

Solutions

1. Use an agent preset id that exists; list available presets first.

When it happens

Trigger: Thrown at packages/client/connection/src/client/fixture.ts:2812 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/5207dc4ad6faac54. Report an issue: GitHub.