GPTsAppEarliest supported layer
Rules distinguish availability, discovery, parsing, configuration, dependency, connection, authentication, registration, exposure, activation, authorization, execution, and persistence.
Codex capability diagnosis
Why isn't Browser or Computer Use working?
Paste the availability, approval, sandbox, or action error and state which Codex surface is affected.
Local redaction. Save only by choice.
Diagnosis workspace
Not checkedEvidence in.
One useful next step.
Your result appears here after you review and submit the sanitized evidence.
- First supported boundary
- Waiting for evidence
- Next check
- Not selected yet
- Private report
- Not created
Worked example — not your diagnosis Authorization A compact output computed by the current deterministic ruleset. AUTHORIZED
Example evidence
Browser Use is visible and activates, but the safe navigation action is blocked by policy: permission denied by the workspace sandbox. I did not disable the sandbox.
Result
Authorization · AUTHORIZED
The earliest supported failure is authorization: the capability is reachable or activated, but the requested action is not allowed by the current provider scope, workspace policy, approval, or sandbox boundary.
Why this boundary
The supplied evidence explicitly names forbidden/denied access, a missing scope/role, or approval that does not persist.
Next safe check
Record the exact denied action and retry only that safe action
Separate authentication from workspace policy, approval lifetime, sandbox, or command-rule authorization.
Method and limits
A capability chain, not an AI guess
- Redacted on this device
- Inspectable deterministic ruleset · 15 checkpoints
- Saved only when you choose
Deterministic rules over your redacted evidence. What the tool cannot support, it declines to claim.
Evidence before verdict
A rule must meet a deterministic threshold. Conflicting or incomplete evidence becomes partial or unknown; it is not converted into a confident root cause.
No unknown execution
The site does not install capabilities, execute packages, contact private endpoints, edit configuration, or ask for credentials.
Private by explicit choice
A diagnosis is stateless by default. Saved reports use random URLs, expire after seven days, can be deleted immediately, and are excluded from indexing.