{"id":"https://openalex.org/W7161142756","doi":"https://doi.org/10.48550/arxiv.2605.13228","title":"ReTool-Video: Recursive Tool-Using Video Agents with Meta-Augmented Tool Grounding","display_name":"ReTool-Video: Recursive Tool-Using Video Agents with Meta-Augmented Tool Grounding","publication_year":2026,"publication_date":"2026-05-13","ids":{"openalex":"https://openalex.org/W7161142756","doi":"https://doi.org/10.48550/arxiv.2605.13228"},"language":null,"primary_location":{"id":"doi:10.48550/arxiv.2605.13228","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2605.13228","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"},"type":"preprint","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.48550/arxiv.2605.13228","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5136107794","display_name":"Xiao Liu","orcid":"https://orcid.org/0000-0001-8400-5754"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Liu, Xiao","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5136145332","display_name":"Nayu Liu","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Liu, Nayu","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015809194","display_name":"Junnan Zhu","orcid":"https://orcid.org/0000-0002-9856-2946"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Zhu, Junnan","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5136127049","display_name":"Ruirui Chen","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Chen, Ruirui","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5136155593","display_name":"Guohui Xiang","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Xiang, Guohui","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5136136352","display_name":"Changjian Wang","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Wang, Changjian","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5136096129","display_name":"Kaiwen Wei","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Wei, Kaiwen","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033869703","display_name":"Rongzhen Li","orcid":"https://orcid.org/0000-0003-0306-3982"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Li, Rongzhen","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5136135965","display_name":"Jiang Zhong","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Zhong, Jiang","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11714","display_name":"Multimodal Machine Learning Applications","score":0.9728999733924866,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11714","display_name":"Multimodal Machine Learning Applications","score":0.9728999733924866,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10812","display_name":"Human Pose and Action Recognition","score":0.005499999970197678,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10709","display_name":"Social Robot Interaction and HRI","score":0.0027000000700354576,"subfield":{"id":"https://openalex.org/subfields/3207","display_name":"Social Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/executable","display_name":"Executable","score":0.771399974822998},{"id":"https://openalex.org/keywords/video-tracking","display_name":"Video tracking","score":0.49720001220703125},{"id":"https://openalex.org/keywords/construct","display_name":"Construct (python library)","score":0.4959999918937683},{"id":"https://openalex.org/keywords/frame","display_name":"Frame (networking)","score":0.47920000553131104},{"id":"https://openalex.org/keywords/action","display_name":"Action (physics)","score":0.4108999967575073},{"id":"https://openalex.org/keywords/modal","display_name":"Modal","score":0.3644999861717224},{"id":"https://openalex.org/keywords/space","display_name":"Space (punctuation)","score":0.35269999504089355},{"id":"https://openalex.org/keywords/troubleshooting","display_name":"Troubleshooting","score":0.3303000032901764}],"concepts":[{"id":"https://openalex.org/C160145156","wikidata":"https://www.wikidata.org/wiki/Q778586","display_name":"Executable","level":2,"score":0.771399974822998},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7713000178337097},{"id":"https://openalex.org/C202474056","wikidata":"https://www.wikidata.org/wiki/Q1931635","display_name":"Video tracking","level":3,"score":0.49720001220703125},{"id":"https://openalex.org/C2780801425","wikidata":"https://www.wikidata.org/wiki/Q5164392","display_name":"Construct (python library)","level":2,"score":0.4959999918937683},{"id":"https://openalex.org/C126042441","wikidata":"https://www.wikidata.org/wiki/Q1324888","display_name":"Frame (networking)","level":2,"score":0.47920000553131104},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4787999987602234},{"id":"https://openalex.org/C2780791683","wikidata":"https://www.wikidata.org/wiki/Q846785","display_name":"Action (physics)","level":2,"score":0.4108999967575073},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.4081999957561493},{"id":"https://openalex.org/C71139939","wikidata":"https://www.wikidata.org/wiki/Q910194","display_name":"Modal","level":2,"score":0.3644999861717224},{"id":"https://openalex.org/C2778572836","wikidata":"https://www.wikidata.org/wiki/Q380933","display_name":"Space (punctuation)","level":2,"score":0.35269999504089355},{"id":"https://openalex.org/C147494362","wikidata":"https://www.wikidata.org/wiki/Q2078905","display_name":"Troubleshooting","level":2,"score":0.3303000032901764},{"id":"https://openalex.org/C2779304628","wikidata":"https://www.wikidata.org/wiki/Q3503480","display_name":"Face (sociological concept)","level":2,"score":0.32019999623298645},{"id":"https://openalex.org/C4554734","wikidata":"https://www.wikidata.org/wiki/Q593744","display_name":"Knowledge base","level":2,"score":0.3111000061035156},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3073999881744385},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.30570000410079956},{"id":"https://openalex.org/C112972136","wikidata":"https://www.wikidata.org/wiki/Q7595718","display_name":"Stability (learning theory)","level":2,"score":0.3043000102043152},{"id":"https://openalex.org/C151211776","wikidata":"https://www.wikidata.org/wiki/Q2778015","display_name":"Video capture","level":3,"score":0.29580000042915344},{"id":"https://openalex.org/C184337299","wikidata":"https://www.wikidata.org/wiki/Q1437428","display_name":"Semantics (computer science)","level":2,"score":0.2937000095844269},{"id":"https://openalex.org/C42058472","wikidata":"https://www.wikidata.org/wiki/Q810214","display_name":"Base (topology)","level":2,"score":0.2930000126361847},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.2874999940395355},{"id":"https://openalex.org/C65483669","wikidata":"https://www.wikidata.org/wiki/Q3536669","display_name":"Video processing","level":2,"score":0.28040000796318054},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.26579999923706055}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.48550/arxiv.2605.13228","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2605.13228","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"doi:10.48550/arxiv.2605.13228","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2605.13228","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions","score":0.5410445332527161}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Video":[0],"understanding":[1],"requires":[2],"active":[3],"evidence":[4],"seeking,":[5],"motivating":[6],"tool-augmented":[7],"video":[8,20,24,61,124,132,146,229],"agents":[9,21],"for":[10,49,99,108,167],"temporal":[11,180],"reasoning,":[12],"cross-modal":[13,182],"understanding,":[14],"and":[15,31,52,104,113,126,201,218,225],"complex":[16,228],"question":[17],"answering.":[18],"Existing":[19],"have":[22],"improved":[23],"reasoning":[25,133],"with":[26,75,91],"retrieval,":[27],"memory,":[28],"frame":[29],"inspection,":[30],"verifier":[32],"tools,":[33,94],"but":[34],"they":[35],"still":[36],"face":[37],"two":[38,76],"limitations:":[39],"(1)":[40],"a":[41,54,82,139,165],"coarse":[42],"tool":[43,66,89,150,170],"space":[44,57],"that":[45,58,143,206,215],"lacks":[46],"fine-grained":[47,219],"operations":[48,194],"compositional":[50],"reasoning;":[51],"(2)":[53],"flat":[55],"action":[56],"forces":[59],"high-level":[60,145],"intents":[62,147,161],"into":[63,148,191],"primitive":[64],"executable":[65,149],"calls.":[67],"In":[68,152],"this":[69],"paper,":[70],"we":[71,80,136],"address":[72],"these":[73],"challenges":[74],"complementary":[77],"designs.":[78],"First,":[79],"construct":[81],"MetaAug-Video":[83],"Tool":[84],"Library":[85],"(MVTL),":[86],"an":[87],"extensible":[88],"library":[90],"134":[92],"registered":[93],"including":[95],"26":[96],"base":[97],"tools":[98,107,221],"general":[100],"multimodal":[101,193],"signal":[102],"processing":[103],"108":[105],"meta":[106,220],"filtering,":[109],"aggregation,":[110],"reranking,":[111],"formatting,":[112],"other":[114],"intermediate-result":[115],"operations.":[116],"MVTL":[117],"supports":[118],"dual-level":[119],"access":[120],"to":[121,164,187],"both":[122],"structured":[123],"information":[125],"raw":[127],"modal":[128],"evidence,":[129],"enabling":[130],"diverse":[131],"scenarios.":[134],"Second,":[135],"propose":[137],"ReTool-Video,":[138,153],"recursive":[140,216],"tool-using":[141],"method":[142],"grounds":[144],"chains.":[151],"matched":[154],"actions":[155,177],"are":[156,162],"executed":[157],"directly,":[158],"while":[159],"unmatched":[160],"delegated":[163],"resolver":[166],"parameter":[168],"repair,":[169],"substitution,":[171],"or":[172,184],"decomposition.":[173],"This":[174],"allows":[175],"abstract":[176],"such":[178],"as":[179],"merging,":[181],"verification,":[183],"repeated-event":[185],"aggregation":[186],"be":[188],"progressively":[189],"translated":[190],"concrete":[192],"at":[195],"runtime.":[196],"Experiments":[197],"on":[198],"MVBench,":[199],"MLVU,":[200],"Video-MME":[202],"w/o":[203],"sub.":[204],"show":[205],"ReTool-Video":[207],"consistently":[208],"outperforms":[209],"strong":[210],"baselines.":[211],"Further":[212],"analysis":[213],"demonstrates":[214],"grounding":[217],"improve":[222],"the":[223],"stability":[224],"effectiveness":[226],"of":[227],"understanding.":[230]},"counts_by_year":[],"updated_date":"2026-07-01T06:00:48.157686","created_date":"2026-05-15T00:00:00"}