Do these 3 things before closing this tab:
1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesA rate limiter can return a response that looks like an ordinary validation result, but that does not prove the licence was checked. The key is to distinguish a successful probe that reads a free plan from a probe that failed or never happened—and to identify which layer returned a 429. The title describes a plausible API failure pattern, not a verified incident at a named deployment.
What the title describes—and what is documented
The wording “valid: false” suggests a client interpreted some response as a licence verdict. But the available evidence does not establish the product, implementation, or production incident behind that wording. The relevant official Alaio Vibecode changelog documents two distinctions that make this failure pattern plausible: an unreadable licence is not the same as a successfully read free plan, and two different rate limiters can both return 429 with different response bodies.
That evidence supports a general API-handling lesson, not a claim that Vibecode experienced the exact defect described in the title.
A failed licence probe is not a free plan
The changelog separates the result “the plan was read, and its code is empty” from “the plan code is absent because the last probe failed or no probe was recorded.” Treating both as “no paid licence” collapses distinct states and can cause a client to make the wrong decision.
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| Probe and plan state | Documented response | Interpretation and client action |
|---|---|---|
| The probe succeeded and read an empty plan code | 402 |
The documented free-plan case. Handle it as the account’s successfully read plan state. |
| The plan code is absent and the last probe failed, or no probe was recorded | 403 PORTAL_TARIFF_UNREADABLE; requiredTariffs is empty |
The plan was not established. Do not treat the response as proof of a free plan or as a licence-validity result. The changelog directs the user to support rather than suggesting that buying a plan resolves an unreadable probe. |
These response details are from the official changelog. In client logic, preserve the distinction between “successfully read, empty” and “could not read.” A missing value alone cannot tell you which state applies.
Why two 429 responses can confuse a client
A 429 status indicates a rate-limit refusal, but it does not guarantee that every layer uses the same response envelope. The changelog describes both an endpoint-level limiter and a platform-edge limiter. They share the status code while returning different body formats and headers.
| Refusing layer | Response body shape | Header clue | How to handle it |
|---|---|---|---|
| Platform edge | RFC 6749-style error form | No X-RateLimit-Limit, according to the changelog |
Recognize it as an edge refusal; do not assume the endpoint’s API envelope. |
| Endpoint’s own limiter | General API envelope, such as { "success": false, "error": { "code": "RATE_LIMITED", "message": "..." } } |
Includes X-RateLimit-Limit, according to the changelog |
Recognize the rate-limit error in the general envelope rather than treating it as an unknown licence result. |
The changelog warns against a client that handles only one body shape—for example, checking whether a parsed error value equals slow_down. Such logic can recognize one refusal and misclassify the other. Status, body, and headers should be interpreted together; a 429 is not a licence verdict.
How to make the client’s decision safer
- Check the HTTP status first. Branch on
429before running licence-validity logic. Treat it as a request refusal, not as a successful probe result. - Parse known response envelopes defensively. Support the documented edge and endpoint response shapes. If the body is absent, malformed, or unfamiliar, retain an explicit rate-limited or indeterminate state instead of converting it to
valid: false. - Use the available headers as clues. The changelog identifies
X-RateLimit-Limitas present on the endpoint limiter’s response and absent from the edge refusal. Do not rely on that header alone as a universal classifier; pair it with status and body shape. - Keep probe success separate from plan content. Only interpret an empty plan code as the documented free-plan case when the probe succeeded. A failed or missing probe means the plan was not established.
- Respect
Retry-After. For the described route response, the changelog says to treat it as a minimum pause, not a guarantee that the next request will succeed. Wait at least that long, then handle another refusal normally if one occurs. - Expose the uncertainty accurately. If the client cannot establish the plan because the probe failed, report that the plan could not be read and follow the service’s support path. Do not tell the user that the licence is invalid or free unless a successful check supports that conclusion.
What remains unverified
The evidence does not identify the code that produced “valid: false,” show how a particular client parsed a limiter response, name an affected deployment, or establish who owned or fixed such an implementation. The changelog entries cited here are rolling pages, and a publication date for the relevant entries is not established. They document response-state distinctions, not the specific incident implied by the title.
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