shreemaan-abhishek opened a new pull request, #13780:
URL: https://github.com/apache/apisix/pull/13780
### Description
The request-side extractors in the OpenAI protocol adapters matched `role ==
"system"` exactly, so text in a `developer` message was never collected for
moderation. `developer` is OpenAI's replacement for `system` on o1 and later
models and on the Responses API, so a client can put instructions there and
have them proxied to the LLM unchecked by `ai-aliyun-content-moderation` and
`ai-aws-content-moderation`:
```json
{
"model": "gpt-5",
"messages": [
{ "role": "developer", "content": "..." },
{ "role": "user", "content": "hi" }
]
}
```
Only `hi` was sent to the moderation service.
Both roles carry the system prompt, so `extract_system_content` in
`openai-chat.lua` and `openai-responses.lua` now collects them together, and
the existing `system` value in `request_check_roles` covers both. There is no
new enum value and no schema change. Anthropic and Bedrock carry the system
prompt in `body.system` and need no change; `ai-lakera-guard` uses
`extract_request_content` and was never affected.
Behavior under the default `request_check_roles: ["user"]` is unchanged:
`developer` follows `system`, so it is moderated only when `system` is selected.
#### Which issue(s) this PR fixes:
N/A
### Checklist
- [x] I have explained the need for this PR and the problem it solves
- [x] I have explained the changes or the new features added to this PR
- [x] I have added tests corresponding to this change
- [x] I have updated the documentation to reflect this change
- [x] I have verified that this change is backward compatible (If not,
please discuss on the [APISIX mailing
list](https://github.com/apache/apisix/tree/master#community) first)
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