The installed tools cannot be used

[maocatooo]

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Dify version

the cloud

Cloud or Self Hosted

Cloud

Steps to reproduce

I have logged out and logged back in, but found that the issue still persists

✔️ Expected Behavior

How to use the tool to run normally

❌ Actual Behavior

No response

[dosubot]

There are several known reasons why installed tools might not respond in Dify cloud workflows:

• Missing or invalid credentials, expired OAuth tokens, or misconfigured tool providers can prevent tools from running. For OAuth-based plugins, Dify Cloud only supports certain callback endpoints—unsupported OAuth flows (like GitHub) will fail and block tool usage (source).
• Some recent bugs caused all tools in a workspace to be unavailable; this was fixed in a recent update, so if you haven't already, try refreshing your workspace or check for platform updates (source).
• After platform or plugin updates, tools may get stuck or fail due to schema changes or incompatibility between plugin and platform versions (source).
• For agent nodes, there is a known bug where tool calls can silently fail due to token handling issues; disabling the memory option or restructuring the workflow can be a temporary workaround (source).
• Provider-specific issues: sometimes switching the provider (e.g., from Open Router to OpenAI) resolves tool usage problems (source).

To troubleshoot:

1. Double-check that all tool credentials are valid and up to date.
2. Make sure the provider you selected is supported and compatible.
3. If using OAuth, confirm the callback URL matches what Dify Cloud supports.
4. If the problem affects all tools, try refreshing the workspace or check if there’s a recent outage or update.
5. If you see any error messages or logs, share them—they can help pinpoint the issue.

If you can provide more details (which tools, error messages, whether it’s workspace-wide), I can help narrow down the cause further.

To reply, just mention @dosu.

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