deepseek-ai/deepseek-harness · error

workspace-move-invalid

workspace-move-invalid

Error message

session or anchor is not accounted by workspace ${workspaceId}

What it means

Error "session or anchor is not accounted by workspace ${workspaceId}" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/client/connection/src/client/fixture.ts:2765

              workspaceIds: workspaces.map(candidate => candidate.workspaceId),
            })
          }
        }
        return ok(request, { workspaceIds: workspaces.map(candidate => candidate.workspaceId) })
      },
      insertSessionBefore: (request) => {
        const { workspaceId, sessionId, beforeSessionId } = request.payload
        const workspace = workspaces.find(w => w.workspaceId === workspaceId)
        if (workspace === undefined) {
          return err(request, {
            code: 'workspace-not-found',
            message: `no workspace ${workspaceId}`,
            details: { workspaceId },
          })
        }
        if (!workspace.sessionIds.includes(sessionId)
          || (beforeSessionId !== undefined && !workspace.sessionIds.includes(beforeSessionId))) {
          return err(request, {
            code: 'workspace-move-invalid',
            message: `session or anchor is not accounted by workspace ${workspaceId}`,
            details: { workspaceId, sessionId, ...beforeSessionId === undefined ? {} : { beforeSessionId } },
          })
        }
        const without = workspace.sessionIds.filter(id => id !== sessionId)
        const at = beforeSessionId === undefined ? without.length : without.indexOf(beforeSessionId)
        const sessionIds = [...without.slice(0, at), sessionId, ...without.slice(at)]
        if (!sessionIds.every((id, index) => id === workspace.sessionIds[index])) {
          workspace.sessionIds = sessionIds
          workspace.updatedAt = new Date().toISOString()
          emitHost({ type: 'host/workspace-changed', workspace: { ...workspace } })
        }
        return ok(request, { workspace: { ...workspace } })
      },
      archiveSession: (request) => {
        const missing = requireSession(request)
        if (missing !== undefined) return missing

View on GitHub (pinned to b150a551b8)

Solutions

1. Attach the session and the anchor session to the workspace before reordering.

When it happens

Trigger: Thrown at packages/client/connection/src/client/fixture.ts:2765 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/b0165131657eec02. Report an issue: GitHub.