Files
codex/codex-rs/app-server-protocol/schema/json/v2/ErrorNotification.json
T
Steve Coffey dafb133c5b Surface Flex capacity failures as a distinct terminal error (#47967)
## What changed

- Recognize `flex_unavailable` in HTTP 429 responses and streamed `error` and `response.failed` events. End normal turns without retries and report `Flex capacity unavailable.`
- Expose `flexUnavailable` through the core and app-server protocols and generated schemas and SDK types.
- Keep Flex capacity failures eligible for Guardian review and sampler retries, with a distinct telemetry classification.
- Map unexpected HTTP responses to `HttpConnectionFailed`, preserving their status codes.

## Testing

Add regression coverage for terminal Flex failures over HTTP, SSE, and WebSocket, HTTP 504 status preservation after a stream retry, and protocol serialization. Update Guardian retry and sampler recovery tests to cover Flex failures.

GitOrigin-RevId: f2e03a6d2d36a6d9748c35952e40397f8670d121
2026-09-24 23:33:38 +00:00

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6.8 KiB
JSON
Generated

{
"$schema": "http://json-schema.org/draft-07/schema#",
"definitions": {
"CodexErrorInfo": {
"description": "This translation layer make sure that we expose codex error code in camel case.\n\nWhen an upstream HTTP status is available (for example, from the Responses API or a provider), it is forwarded in `httpStatusCode` on the relevant `codexErrorInfo` variant.",
"oneOf": [
{
"enum": [
"contextWindowExceeded",
"sessionBudgetExceeded",
"usageLimitExceeded",
"rateLimitExceeded",
"flexUnavailable",
"serverOverloaded",
"cyberPolicy",
"misalignmentPolicyViolation",
"internalServerError",
"unauthorized",
"badRequest",
"threadRollbackFailed",
"sandboxError",
"other"
],
"type": "string"
},
{
"additionalProperties": false,
"properties": {
"httpConnectionFailed": {
"properties": {
"httpStatusCode": {
"format": "uint16",
"minimum": 0.0,
"type": [
"integer",
"null"
]
}
},
"type": "object"
}
},
"required": [
"httpConnectionFailed"
],
"title": "HttpConnectionFailedCodexErrorInfo",
"type": "object"
},
{
"additionalProperties": false,
"description": "Failed to connect to the response SSE stream.",
"properties": {
"responseStreamConnectionFailed": {
"properties": {
"httpStatusCode": {
"format": "uint16",
"minimum": 0.0,
"type": [
"integer",
"null"
]
}
},
"type": "object"
}
},
"required": [
"responseStreamConnectionFailed"
],
"title": "ResponseStreamConnectionFailedCodexErrorInfo",
"type": "object"
},
{
"additionalProperties": false,
"description": "The response SSE stream disconnected in the middle of a turn before completion.",
"properties": {
"responseStreamDisconnected": {
"properties": {
"httpStatusCode": {
"format": "uint16",
"minimum": 0.0,
"type": [
"integer",
"null"
]
}
},
"type": "object"
}
},
"required": [
"responseStreamDisconnected"
],
"title": "ResponseStreamDisconnectedCodexErrorInfo",
"type": "object"
},
{
"additionalProperties": false,
"description": "Reached the retry limit for responses.",
"properties": {
"responseTooManyFailedAttempts": {
"properties": {
"httpStatusCode": {
"format": "uint16",
"minimum": 0.0,
"type": [
"integer",
"null"
]
}
},
"type": "object"
}
},
"required": [
"responseTooManyFailedAttempts"
],
"title": "ResponseTooManyFailedAttemptsCodexErrorInfo",
"type": "object"
},
{
"additionalProperties": false,
"description": "Returned when `turn/start` or `turn/steer` is submitted while the current active turn cannot accept same-turn steering, for example `/review` or manual `/compact`.",
"properties": {
"activeTurnNotSteerable": {
"properties": {
"turnKind": {
"$ref": "#/definitions/NonSteerableTurnKind"
}
},
"required": [
"turnKind"
],
"type": "object"
}
},
"required": [
"activeTurnNotSteerable"
],
"title": "ActiveTurnNotSteerableCodexErrorInfo",
"type": "object"
}
]
},
"MisalignmentErrorDetails": {
"properties": {
"detailedExplanation": {
"description": "A substantive localized explanation is required before offering continuation.",
"type": [
"string",
"null"
]
},
"errorType": {
"description": "Open-ended classification; clients must accept categories added by Responses.",
"type": [
"string",
"null"
]
},
"steer": {
"anyOf": [
{
"$ref": "#/definitions/MisalignmentSteer"
},
{
"type": "null"
}
],
"description": "Instruction to submit as the next turn's user input if continuation is confirmed."
}
},
"type": "object"
},
"MisalignmentSteer": {
"properties": {
"message": {
"type": "string"
}
},
"required": [
"message"
],
"type": "object"
},
"NonSteerableTurnKind": {
"enum": [
"review",
"compact"
],
"type": "string"
},
"TurnError": {
"properties": {
"additionalDetails": {
"default": null,
"type": [
"string",
"null"
]
},
"codexErrorInfo": {
"anyOf": [
{
"$ref": "#/definitions/CodexErrorInfo"
},
{
"type": "null"
}
]
},
"message": {
"type": "string"
},
"misalignment": {
"anyOf": [
{
"$ref": "#/definitions/MisalignmentErrorDetails"
},
{
"type": "null"
}
],
"default": null,
"description": "Optional public explanation and continuation instruction for a misalignment block."
}
},
"required": [
"message"
],
"type": "object"
}
},
"properties": {
"error": {
"$ref": "#/definitions/TurnError"
},
"threadId": {
"type": "string"
},
"turnId": {
"type": "string"
},
"willRetry": {
"type": "boolean"
}
},
"required": [
"error",
"threadId",
"turnId",
"willRetry"
],
"title": "ErrorNotification",
"type": "object"
}