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Bug: read_csv_chunked rejects valid CSV content based on file extension while read_csv accepts it

area:csv-parserCSV reading, scanning, parsing, delimiters, encodings, row handlingCSV reading, scanning, parsing, delimiters, encodings, row handling

area:python-apiPublic Python API and wrappersPublic Python API and wrappers

difficulty:beginnerGood for new contributors with limited project contextGood for new contributors with limited project context

gssocPart of the GSSoC 2026 contributor programPart of the GSSoC 2026 contributor program

gssoc:level-1GSSoC beginner-level taskGSSoC beginner-level task

level:beginnerGSSoC scoring label for beginner-level merged PRsGSSoC scoring label for beginner-level merged PRs

priority:mediumUseful and planned, but not urgentUseful and planned, but not urgent

size:sSmall focused changeSmall focused change

status:claimedA contributor is currently working on thisA contributor is currently working on this

type:bugGSSoC-compatible bug label for confirmed defectsGSSoC-compatible bug label for confirmed defects

Status: Open.

#2279 In im-anishraj/arnio;

· hitdepani opened on Jun 1, 2026

Feature: add custom 404 page

area:websiteProject website and web documentationProject website and web documentation

difficulty:beginnerGood for new contributors with limited project contextGood for new contributors with limited project context

gssocPart of the GSSoC 2026 contributor programPart of the GSSoC 2026 contributor program

gssoc:good-first-issueBeginner-friendly GSSoC task with clear scopeBeginner-friendly GSSoC task with clear scope

gssoc:level-1GSSoC beginner-level taskGSSoC beginner-level task

level:beginnerGSSoC scoring label for beginner-level merged PRsGSSoC scoring label for beginner-level merged PRs

priority:lowNice to have or low-risk improvementNice to have or low-risk improvement

size:sSmall focused changeSmall focused change

status:claimedA contributor is currently working on thisA contributor is currently working on this

type:featureGSSoC-compatible feature labelGSSoC-compatible feature label

Status: Open.

#2273 In im-anishraj/arnio;

· anushka11p opened on Jun 1, 2026

Docs: Error taxonomy and how to recover

area:developer-experienceContributor setup, tooling, linting, Makefile, docs for maintainersContributor setup, tooling, linting, Makefile, docs for maintainers

area:docsREADME, docs, examples, contributor docsREADME, docs, examples, contributor docs

difficulty:intermediateRequires understanding one or two modules and testsRequires understanding one or two modules and tests

gssocPart of the GSSoC 2026 contributor programPart of the GSSoC 2026 contributor program

gssoc:level-2GSSoC intermediate-level taskGSSoC intermediate-level task

level:intermediateGSSoC-compatible intermediate-level contribution labelGSSoC-compatible intermediate-level contribution label

priority:mediumUseful and planned, but not urgentUseful and planned, but not urgent

size:mModerate scoped change touching several files or edge casesModerate scoped change touching several files or edge cases

status:claimedA contributor is currently working on thisA contributor is currently working on this

type:docsGSSoC-compatible docs labelGSSoC-compatible docs label

Status: Open.

#2272 In im-anishraj/arnio;

· Aditya8369 opened on Jun 1, 2026

Docs: Chunked/streaming validation + pipeline behavior

area:csv-parserCSV reading, scanning, parsing, delimiters, encodings, row handlingCSV reading, scanning, parsing, delimiters, encodings, row handling

area:developer-experienceContributor setup, tooling, linting, Makefile, docs for maintainersContributor setup, tooling, linting, Makefile, docs for maintainers

area:docsREADME, docs, examples, contributor docsREADME, docs, examples, contributor docs

area:schemaSchema, Field, validate, semantic validators, data contractsSchema, Field, validate, semantic validators, data contracts

difficulty:intermediateRequires understanding one or two modules and testsRequires understanding one or two modules and tests

gssocPart of the GSSoC 2026 contributor programPart of the GSSoC 2026 contributor program

gssoc:level-2GSSoC intermediate-level taskGSSoC intermediate-level task

level:intermediateGSSoC-compatible intermediate-level contribution labelGSSoC-compatible intermediate-level contribution label

priority:mediumUseful and planned, but not urgentUseful and planned, but not urgent

size:mModerate scoped change touching several files or edge casesModerate scoped change touching several files or edge cases

status:readyScoped and ready for contributorsScoped and ready for contributors

type:docsGSSoC-compatible docs labelGSSoC-compatible docs label

Status: Open.

#2271 In im-anishraj/arnio;

· Aditya8369 opened on Jun 1, 2026

Feature: Add Data Quality Score Breakdown API

area:qualityprofile, suggest_cleaning, auto_clean, quality reportingprofile, suggest_cleaning, auto_clean, quality reporting

difficulty:intermediateRequires understanding one or two modules and testsRequires understanding one or two modules and tests

gssocPart of the GSSoC 2026 contributor programPart of the GSSoC 2026 contributor program

gssoc:level-2GSSoC intermediate-level taskGSSoC intermediate-level task

level:intermediateGSSoC-compatible intermediate-level contribution labelGSSoC-compatible intermediate-level contribution label

priority:mediumUseful and planned, but not urgentUseful and planned, but not urgent

size:sSmall focused changeSmall focused change

status:readyScoped and ready for contributorsScoped and ready for contributors

type:featureGSSoC-compatible feature labelGSSoC-compatible feature label

Status: Open.

#2258 In im-anishraj/arnio;

· Gitanshika opened on May 31, 2026

CI: add path filters to skip heavy jobs on docs-only changes

area:ci-packagingBuilds, wheels, PyPI, release workflows, package metadataBuilds, wheels, PyPI, release workflows, package metadata

area:developer-experienceContributor setup, tooling, linting, Makefile, docs for maintainersContributor setup, tooling, linting, Makefile, docs for maintainers

difficulty:intermediateRequires understanding one or two modules and testsRequires understanding one or two modules and tests

gssocPart of the GSSoC 2026 contributor programPart of the GSSoC 2026 contributor program

gssoc:level-2GSSoC intermediate-level taskGSSoC intermediate-level task

level:intermediateGSSoC-compatible intermediate-level contribution labelGSSoC-compatible intermediate-level contribution label

priority:mediumUseful and planned, but not urgentUseful and planned, but not urgent

size:mModerate scoped change touching several files or edge casesModerate scoped change touching several files or edge cases

status:readyScoped and ready for contributorsScoped and ready for contributors

type:devopsGSSoC scoring label for CI, release, packaging, automation, and DevOps workGSSoC scoring label for CI, release, packaging, automation, and DevOps work

type:refactorGSSoC-compatible refactor labelGSSoC-compatible refactor label

Status: Open.

#2235 In im-anishraj/arnio;

· Naveen-Boddepalli opened on May 31, 2026

Feature: add website search across docs and API pages

area:docsREADME, docs, examples, contributor docsREADME, docs, examples, contributor docs

area:websiteProject website and web documentationProject website and web documentation

difficulty:intermediateRequires understanding one or two modules and testsRequires understanding one or two modules and tests

featureNew feature requestNew feature request

gssocPart of the GSSoC 2026 contributor programPart of the GSSoC 2026 contributor program

gssoc:level-2GSSoC intermediate-level taskGSSoC intermediate-level task

level:intermediateGSSoC-compatible intermediate-level contribution labelGSSoC-compatible intermediate-level contribution label

priority:lowNice to have or low-risk improvementNice to have or low-risk improvement

size:mModerate scoped change touching several files or edge casesModerate scoped change touching several files or edge cases

status:readyScoped and ready for contributorsScoped and ready for contributors

type:featureGSSoC-compatible feature labelGSSoC-compatible feature label

Status: Open.

#2173 In im-anishraj/arnio;

· im-anishraj opened on May 30, 2026

Docs: add website examples for auto_clean dry-run and explain workflows

area:docsREADME, docs, examples, contributor docsREADME, docs, examples, contributor docs

area:qualityprofile, suggest_cleaning, auto_clean, quality reportingprofile, suggest_cleaning, auto_clean, quality reporting

area:websiteProject website and web documentationProject website and web documentation

difficulty:beginnerGood for new contributors with limited project contextGood for new contributors with limited project context

documentationDocumentation improvementsDocumentation improvements

gssocPart of the GSSoC 2026 contributor programPart of the GSSoC 2026 contributor program

gssoc:good-first-issueBeginner-friendly GSSoC task with clear scopeBeginner-friendly GSSoC task with clear scope

gssoc:level-1GSSoC beginner-level taskGSSoC beginner-level task

level:beginnerGSSoC scoring label for beginner-level merged PRsGSSoC scoring label for beginner-level merged PRs

priority:mediumUseful and planned, but not urgentUseful and planned, but not urgent

size:sSmall focused changeSmall focused change

status:claimedA contributor is currently working on thisA contributor is currently working on this

type:docsGSSoC-compatible docs labelGSSoC-compatible docs label

Status: Open.

#2168 In im-anishraj/arnio;

· im-anishraj opened on May 30, 2026

Performance: Refactor cleaning.h to use std::string_view for read-only string parameters to prevent silent allocations

area:cleaningCleaning primitives and data preparation transformsCleaning primitives and data preparation transforms

area:cpp-coreC++ Frame, Column, pybind11, memory, and core engine internalsC++ Frame, Column, pybind11, memory, and core engine internals

backendBackend, Python API, C++ core, parser, data engine, or library runtime workBackend, Python API, C++ core, parser, data engine, or library runtime work

difficulty:advancedRequires deep C++/Python/runtime or architecture knowledgeRequires deep C++/Python/runtime or architecture knowledge

gssocPart of the GSSoC 2026 contributor programPart of the GSSoC 2026 contributor program

gssoc:level-3GSSoC advanced-level taskGSSoC advanced-level task

level:advancedGSSoC scoring label for advanced-level merged PRsGSSoC scoring label for advanced-level merged PRs

priority:lowNice to have or low-risk improvementNice to have or low-risk improvement

size:sSmall focused changeSmall focused change

status:readyScoped and ready for contributorsScoped and ready for contributors

type:performanceGSSoC scoring label for performance workGSSoC scoring label for performance work

Status: Open.

#2149 In im-anishraj/arnio;

· Arryan21-06 opened on May 30, 2026

Feature: Chunked & Streaming Processing Engine for Out-of-Core Datasets

area:cpp-coreC++ Frame, Column, pybind11, memory, and core engine internalsC++ Frame, Column, pybind11, memory, and core engine internals

area:csv-parserCSV reading, scanning, parsing, delimiters, encodings, row handlingCSV reading, scanning, parsing, delimiters, encodings, row handling

area:pipelinePipeline execution, registry, custom steps, compositionPipeline execution, registry, custom steps, composition

backendBackend, Python API, C++ core, parser, data engine, or library runtime workBackend, Python API, C++ core, parser, data engine, or library runtime work

difficulty:advancedRequires deep C++/Python/runtime or architecture knowledgeRequires deep C++/Python/runtime or architecture knowledge

gssocPart of the GSSoC 2026 contributor programPart of the GSSoC 2026 contributor program

gssoc:level-3GSSoC advanced-level taskGSSoC advanced-level task

level:advancedGSSoC scoring label for advanced-level merged PRsGSSoC scoring label for advanced-level merged PRs

priority:lowNice to have or low-risk improvementNice to have or low-risk improvement

size:lLarge change that needs design or careful reviewLarge change that needs design or careful review

status:claimedA contributor is currently working on thisA contributor is currently working on this

type:featureGSSoC-compatible feature labelGSSoC-compatible feature label

Status: Open.

#2131 In im-anishraj/arnio;

· ArshVermaGit opened on May 30, 2026

feat: add native UUID and IPAddress schema field validators

area:python-apiPublic Python API and wrappersPublic Python API and wrappers

area:schemaSchema, Field, validate, semantic validators, data contractsSchema, Field, validate, semantic validators, data contracts

difficulty:intermediateRequires understanding one or two modules and testsRequires understanding one or two modules and tests

gssocPart of the GSSoC 2026 contributor programPart of the GSSoC 2026 contributor program

gssoc:level-2GSSoC intermediate-level taskGSSoC intermediate-level task

level:intermediateGSSoC-compatible intermediate-level contribution labelGSSoC-compatible intermediate-level contribution label

priority:mediumUseful and planned, but not urgentUseful and planned, but not urgent

size:mModerate scoped change touching several files or edge casesModerate scoped change touching several files or edge cases

status:claimedA contributor is currently working on thisA contributor is currently working on this

type:featureGSSoC-compatible feature labelGSSoC-compatible feature label

Status: Open.

#2117 In im-anishraj/arnio;

· gowthamrdyy opened on May 30, 2026

Bug: combine_columns pandas fallback uses copy(deep=False), which can trigger SettingWithCopyWarning and inconsistent behavior in pandas < 2.0

area:cleaningCleaning primitives and data preparation transformsCleaning primitives and data preparation transforms

area:pandas-interopto_pandas, from_pandas, dtype compatibility, pandas workflowsto_pandas, from_pandas, dtype compatibility, pandas workflows

backendBackend, Python API, C++ core, parser, data engine, or library runtime workBackend, Python API, C++ core, parser, data engine, or library runtime work

difficulty:beginnerGood for new contributors with limited project contextGood for new contributors with limited project context

gssocPart of the GSSoC 2026 contributor programPart of the GSSoC 2026 contributor program

gssoc:good-first-issueBeginner-friendly GSSoC task with clear scopeBeginner-friendly GSSoC task with clear scope

gssoc:level-1GSSoC beginner-level taskGSSoC beginner-level task

level:beginnerGSSoC scoring label for beginner-level merged PRsGSSoC scoring label for beginner-level merged PRs

priority:lowNice to have or low-risk improvementNice to have or low-risk improvement

size:xsTiny change; often docs, tests, validation, or one small fixTiny change; often docs, tests, validation, or one small fix

status:claimedA contributor is currently working on thisA contributor is currently working on this

type:bugGSSoC-compatible bug label for confirmed defectsGSSoC-compatible bug label for confirmed defects

Status: Open.

#2073 In im-anishraj/arnio;

· anshul23102 opened on May 29, 2026