wso2 / wso2/api-platform

[Task]: Improve word count guardrail needsMoreResponseData method

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Area/Policies Aspect/API Type/Task
Dominant language
Go
Stars
71
Forks
111
Avg merge
1d 14h
Merged PRs (30d)
110

Description

Please select the area the issue is related to

Area/Policies (Policies, Policy Hub, Policy Engine etc)

Please select the aspect the issue is related to

Aspect/API (API backends, definitions, contracts, interfaces, OpenAPI)

Description

When streaming responses are received, emails, phone numbers can be split into different tokens. When word count guardrail allows streaming, it may count these tokens as separate words. Which is incorrect.
If we have PII Masking and word count in the same policy chain, based on the order of the policies, the number of words counted in the response may change.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the needsMoreResponseData method and the streaming word-count guardrail implementation. Trace how streamed tokens are counted alongside PII masking and policy ordering. Done means split email addresses and phone numbers are not counted as separate words, with consistent counts regardless of policy order.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
api
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
48/100

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