{"id":"https://openalex.org/W7139942924","doi":"https://doi.org/10.48550/arxiv.2603.18897","title":"Act While Thinking: Accelerating LLM Agents via Pattern-Aware Speculative Tool Execution","display_name":"Act While Thinking: Accelerating LLM Agents via Pattern-Aware Speculative Tool Execution","publication_year":2026,"publication_date":"2026-03-19","ids":{"openalex":"https://openalex.org/W7139942924","doi":"https://doi.org/10.48550/arxiv.2603.18897"},"language":null,"primary_location":{"id":"doi:10.48550/arxiv.2603.18897","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2603.18897","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":"article"},"type":"preprint","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.48550/arxiv.2603.18897","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5048347888","display_name":"Yifan Sui","orcid":"https://orcid.org/0009-0005-2261-5772"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Sui, Yifan","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5130222292","display_name":"Han Zhao","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Zhao, Han","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5130217697","display_name":"Rui Ma","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ma, Rui","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5130249350","display_name":"Zhiyuan He","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"He, Zhiyuan","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5130215411","display_name":"Hao Wang","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Wang, Hao","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5130252639","display_name":"Jianxun Li","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Li, Jianxun","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5130248304","display_name":"Yuqing Yang","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Yang, Yuqing","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":7,"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/T11986","display_name":"Scientific Computing and Data Management","score":0.12380000203847885,"subfield":{"id":"https://openalex.org/subfields/1802","display_name":"Information Systems and Management"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11986","display_name":"Scientific Computing and Data Management","score":0.12380000203847885,"subfield":{"id":"https://openalex.org/subfields/1802","display_name":"Information Systems and Management"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12127","display_name":"Software System Performance and Reliability","score":0.09600000083446503,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T11424","display_name":"Security and Verification in Computing","score":0.03060000017285347,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/latency","display_name":"Latency (audio)","score":0.6035000085830688},{"id":"https://openalex.org/keywords/task","display_name":"Task (project management)","score":0.5918999910354614},{"id":"https://openalex.org/keywords/execution-time","display_name":"Execution time","score":0.5708000063896179},{"id":"https://openalex.org/keywords/execution-model","display_name":"Execution model","score":0.44269999861717224},{"id":"https://openalex.org/keywords/state","display_name":"State (computer science)","score":0.4399999976158142},{"id":"https://openalex.org/keywords/autonomous-agent","display_name":"Autonomous agent","score":0.4050999879837036},{"id":"https://openalex.org/keywords/inference","display_name":"Inference","score":0.39980000257492065}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8424999713897705},{"id":"https://openalex.org/C82876162","wikidata":"https://www.wikidata.org/wiki/Q17096504","display_name":"Latency (audio)","level":2,"score":0.6035000085830688},{"id":"https://openalex.org/C2780451532","wikidata":"https://www.wikidata.org/wiki/Q759676","display_name":"Task (project management)","level":2,"score":0.5918999910354614},{"id":"https://openalex.org/C2989134064","wikidata":"https://www.wikidata.org/wiki/Q288510","display_name":"Execution time","level":2,"score":0.5708000063896179},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.4431999921798706},{"id":"https://openalex.org/C2776834041","wikidata":"https://www.wikidata.org/wiki/Q25346349","display_name":"Execution model","level":2,"score":0.44269999861717224},{"id":"https://openalex.org/C48103436","wikidata":"https://www.wikidata.org/wiki/Q599031","display_name":"State (computer science)","level":2,"score":0.4399999976158142},{"id":"https://openalex.org/C13687954","wikidata":"https://www.wikidata.org/wiki/Q4826847","display_name":"Autonomous agent","level":2,"score":0.4050999879837036},{"id":"https://openalex.org/C2776214188","wikidata":"https://www.wikidata.org/wiki/Q408386","display_name":"Inference","level":2,"score":0.39980000257492065},{"id":"https://openalex.org/C2776544517","wikidata":"https://www.wikidata.org/wiki/Q189447","display_name":"Unexpected events","level":2,"score":0.3758000135421753},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.34769999980926514},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.3377000093460083},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3273000121116638},{"id":"https://openalex.org/C200130814","wikidata":"https://www.wikidata.org/wiki/Q362858","display_name":"Worst-case execution time","level":3,"score":0.31369999051094055},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.29089999198913574},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.28119999170303345},{"id":"https://openalex.org/C175154964","wikidata":"https://www.wikidata.org/wiki/Q380077","display_name":"Task analysis","level":3,"score":0.2745000123977661}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.48550/arxiv.2603.18897","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2603.18897","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":"article"}],"best_oa_location":{"id":"doi:10.48550/arxiv.2603.18897","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2603.18897","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":"article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"LLM-powered":[0],"agents":[1,16],"are":[2,73],"emerging":[3],"as":[4],"a":[5,19,50],"dominant":[6],"paradigm":[7],"for":[8,29],"autonomous":[9],"task":[10,120],"solving.":[11],"Unlike":[12],"standard":[13],"inference":[14],"workloads,":[15],"operate":[17],"in":[18],"strictly":[20],"serial":[21],"\"LLM-tool\"":[22],"loop,":[23],"where":[24],"the":[25,67,112],"LLM":[26],"must":[27],"wait":[28],"external":[30],"tool":[31,59,105,127],"execution":[32,37,128],"at":[33],"every":[34],"step.":[35],"This":[36],"model":[38],"introduces":[39],"severe":[40],"latency":[41,60],"bottlenecks.":[42],"To":[43],"address":[44],"this":[45],"problem,":[46],"we":[47],"propose":[48],"PASTE,":[49],"Pattern-Aware":[51],"Speculative":[52],"Tool":[53],"Execution":[54],"method":[55],"designed":[56],"to":[57],"hide":[58],"through":[61,103],"speculation.":[62],"PASTE":[63,98,117],"is":[64],"based":[65],"on":[66],"insight":[68],"that":[69,116],"although":[70],"agent":[71,100],"requests":[72],"semantically":[74],"diverse,":[75],"they":[76],"exhibit":[77],"stable":[78],"application":[79],"level":[80],"control":[81],"flows":[82],"(recurring":[83],"tool-call":[84],"sequences)":[85],"and":[86,125],"predictable":[87],"data":[88],"dependencies":[89],"(parameter":[90],"passing":[91],"between":[92],"tools).":[93],"By":[94],"exploiting":[95],"these":[96],"properties,":[97],"improves":[99,126],"serving":[101],"performance":[102],"speculative":[104],"execution.":[106],"Experimental":[107],"results":[108],"against":[109],"state":[110],"of":[111],"art":[113],"baselines":[114],"show":[115],"reduces":[118],"average":[119],"completion":[121],"time":[122],"by":[123,130],"48.5%":[124],"throughput":[129],"1.8x.":[131]},"counts_by_year":[],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2026-03-21T00:00:00"}
