Codex Spreadsheets missing load_workspace_dependencies

Start with the uploaded thread 019f77be-d66b-7af0-8a73-287a176d6349 and the Spreadsheets SKILL.md instructions to trace how @Spreadsheets is selected. Check where load_workspace_dependencies should be exposed and how the supported node_modules path for @oai/artifact-tool is provided. Done means an explicitly selected Spreadsheets session exposes the tool and permits the attached workbook to be inspected and rendered as specified.

What version of Codex CLI is running?

codex-cli 0.144.5

What subscription do you have?

ChatGPT Plus

Which model were you using?

gpt-5.6-sol

What platform is your computer?

Darwin 25.5.0 arm64 arm

What terminal emulator and version are you using (if applicable)?

VS Code integrated terminal 1.129.1

Codex doctor report

{
      "schemaVersion": 1,
      "generatedAt": "1784423132s since unix epoch",
      "overallStatus": "ok",
      "codexVersion": "0.144.5",
      "checks": {
        "app_server.status": {
          "id": "app_server.status",
          "category": "app-server",
          "status": "ok",
          "summary": "background server is not running",
          "details": {
            "control socket": "/Users/carsten/.codex/app-server-control/app-server-control.sock",
            "daemon state dir": "/Users/carsten/.codex/app-server-daemon",
            "mode": "ephemeral",
            "pid file": "/Users/carsten/.codex/app-server-daemon/app-server.pid (missing)",
            "settings": "/Users/carsten/.codex/app-server-daemon/settings.json (missing)",
            "status": "not running",
            "update-loop pid file": "/Users/carsten/.codex/app-server-daemon/app-server-updater.pid (missing)"
          },
          "remediation": null,
          "durationMs": 0
        },
        "auth.credentials": {
    … +282 lines (ctrl + t to view transcript)
            "terminal title source": "default"
          },
          "remediation": null,
          "durationMs": 0
        },
        "updates.status": {
          "id": "updates.status",
          "category": "updates",
          "status": "ok",
          "summary": "update configuration is locally consistent",
          "details": {
            "cached latest version": "0.144.6",
            "check for update on startup": "true",
            "last checked at": "2026-07-19T00:20:27.332500Z",
            "latest version": "0.144.6",
            "latest version status": "newer version is available",
            "npm update target": "/Users/carsten/.local/lib/node_modules/@openai/codex",
            "update action": "npm install -g @openai/codex",
            "version cache": "/Users/carsten/.codex/version.json"
          },
          "remediation": null,
          "durationMs": 228
        }
      }
    }

What issue are you seeing?

The Spreadsheets plugin and its SKILL.md are available, but the required load_workspace_dependencies tool is not exposed in the
session. Therefore the required runtime path for @oai/artifact-tool cannot be loaded.

According to the Spreadsheets skill instructions, the attached Excel workbook must not be read with replacement libraries when this
runtime is unavailable. The workbook analysis is therefore blocked even though @Spreadsheets was explicitly selected and the .xlsx
file was attached.

What steps can reproduce the bug?

Uploaded thread: 019f77be-d66b-7af0-8a73-287a176d6349

What is the expected behavior?

When @Spreadsheets is selected, the session should expose load_workspace_dependencies. It should provide the supported node_modules
path containing @oai/artifact-tool so that the attached workbook can be inspected and rendered according to the Spreadsheets skill
instructions.

Additional information

No response