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arxiv: 2606.22000 · v1 · pith:FU3UE5RCnew · submitted 2026-06-20 · 💻 cs.AI · cs.CL· cs.LG· cs.SE

CFAgentBench: A Reproducible Environment and Benchmark for Autonomous Construction-Finance Agents

Pith reviewed 2026-06-26 11:48 UTC · model grok-4.3

classification 💻 cs.AI cs.CLcs.LGcs.SE
keywords construction financeautonomous agentsbenchmarkreproducible environmentmoney-movement guardpass rate evaluationexecutable tasksLLM agents
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The pith

CFAgentBench shows construction-finance agents drop from 67 percent to 38 percent success when required to repeat tasks under temperature-0 decoding.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper introduces CFAgentBench as a reproducible, self-hostable environment and benchmark for autonomous agents that handle construction-finance workflows across ERP, payroll, pay applications, certified payroll, lien waivers, and bank portals. It supplies 1,014 machine-gradeable task specifications grounded in real sources, 35 mock applications implementing a uniform contract, and executable evaluators that grade by state diff, forbidden-side-effect checks, and output regexes. A money-movement guard in 278 instances forces agents to stage payments and similar actions for human approval rather than execute them. Initial evaluation of three open-weight models finds the strongest agent at pass^1 of 0.67 yet only pass^5 of 0.38, with a 43 percent loss of successes and marked per-domain variation. This pattern supplies evidence that single-attempt accuracy overstates the consistent competence required for actual deployment.

Core claim

CFAgentBench supplies a runnable suite of 40 oracle-validated tasks (extendable to 54) inside an executable environment of 35 mock applications over nine archetypes; the central observation is that the best agent in a three-model sweep reaches pass^1 = 0.67 but only pass^5 = 0.38 under temperature-0 decoding, losing 43 percent of its successes, together with sharp per-domain heterogeneity, establishing that single-attempt accuracy overstates deployable construction-finance competence.

What carries the argument

The money-movement guard, which places a payment, payroll, e-signature, or e-filing step in 278 tasks where the correct action is to stop and stage for human approval, with any execution counted as failure; grading relies on functional correctness via state diff plus forbidden-side-effect checks plus required-output regexes.

If this is right

  • Evaluation protocols for finance agents must incorporate repeated consistent successes rather than single-attempt pass rates.
  • Large per-domain performance gaps indicate that agent improvements must target specific sub-areas such as certified payroll or lien waivers.
  • The guard mechanism allows safe testing of payment-related tasks without incurring real financial exposure.
  • Temperature-0 decoding combined with pass^5 measurement supplies a stricter test of reliability than standard single-run benchmarks.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • The observed collapse may stem from sensitivity to small prompt or state variations that could be mitigated by verification or planning layers not tested here.
  • The benchmark design could transfer to other regulated domains that require staged approvals to avoid overestimating agent reliability.
  • If the mock stack proves faithful, sustained low pass^5 rates would imply that current open-weight models need architectural changes before unsupervised use in construction finance.

Load-bearing premise

The 35 mock applications accurately simulate the real software stack a US construction finance team runs, including ERP, payroll, and bank portals.

What would settle it

A follow-up sweep on the same or additional models in which pass^5 rates remain within a few points of pass^1 rates across domains would falsify the claim that single-attempt accuracy overstates competence.

Figures

Figures reproduced from arXiv: 2606.22000 by Rishi Srivastava.

Figure 1
Figure 1. Figure 1: The per-task lifecycle. A deterministic Company-A book seeds 35 contract-uniform apps; [PITH_FULL_IMAGE:figures/full_fig_p005_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: Reliability collapse on the forty-task suite ( [PITH_FULL_IMAGE:figures/full_fig_p015_2.png] view at source ↗
read the original abstract

We introduce CFAgentBench, a reproducible, self-hostable environment and benchmark for autonomous construction-finance agents: a CFO/controller-class agent operating across the real software stack a US construction finance team runs - ERP, project management, email, documents, pay applications, payroll, certified payroll, lien waivers, and bank/treasury portals. It contains 1,014 machine-gradeable task specifications across 8 domains and 77 families, every family grounded in a real source; a self-validated subset of 40 tasks (54 with a project-management extension) is compiled into oracle-validated executable evaluators, the runnable suite reported here. Following WebArena, the benchmark runs on an executable environment rather than static traces: 35 mock applications (31 reconciled to one company book, plus 4 PM platforms) over 9 archetypes, each implementing a uniform self-hostable app contract, so every task is graded by functional correctness - a state diff plus forbidden-side-effect checks plus required-output regexes - with an LLM judge used only for reply quality, never as reward. A distinguishing principle is a money-movement guard: 278 instances embed a payment, payroll, e-signature, or e-filing step where the correct behavior is to stop and stage for human approval, and executing even the correct transaction fails the task. The public split (n=711) is sized for a 95% Wilson half-width of +/-4.1%; a private, contamination-protected split (n=303) is reserved for remote scoring. In a first three-model open-weight sweep (k=5), the strongest agent reaches pass^1 = 0.67 but only pass^5 = 0.38 - losing 43% of its successes when required to repeat them under temperature-0 decoding. The within-model pass^1 to pass^5 collapse and sharp per-domain heterogeneity are clear evidence that single-attempt accuracy overstates deployable construction-finance competence.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

2 major / 2 minor

Summary. The paper introduces CFAgentBench, a reproducible self-hostable environment and benchmark for autonomous construction-finance agents. It defines 1,014 machine-gradeable task specifications across 8 domains and 77 families (each family grounded in a real source), with a self-validated subset of 40 tasks (54 with PM extension) turned into oracle-validated executable evaluators. The environment uses 35 mock applications (31 reconciled to one company book across 9 archetypes) implementing a uniform app contract; tasks are graded by functional correctness via state diffs, side-effect checks, and regexes (LLM judge only for reply quality). A money-movement guard requires agents to stage certain actions for human approval. Public split (n=711) sized for statistical precision; private split reserved. Initial three-model open-weight sweep (k=5) reports strongest agent pass^1=0.67 dropping to pass^5=0.38, with within-model collapse and per-domain heterogeneity taken as evidence that single-attempt accuracy overstates deployable competence.

Significance. If the mock fidelity and evaluator validation hold, the benchmark supplies a concrete, executable testbed for high-stakes financial agents that emphasizes repeatability, functional correctness, and a safety guard on money movement—features that address real deployment risks. The reported pass^1-to-pass^5 drop and domain heterogeneity constitute falsifiable, quantitative evidence of reliability shortfalls that single-shot metrics miss. The self-hostable design, uniform app contract, and separation of public/private splits are concrete strengths that enable community extension and contamination-protected evaluation.

major comments (2)
  1. [Abstract / environment description] The description of the 35 mock applications (abstract and environment section): the claim that they 'simulate the real software stack a US construction finance team runs' (ERP, payroll, bank portals, etc.) is load-bearing for the generalization that the observed 43% pass^1-to-pass^5 collapse reflects 'deployable construction-finance competence' shortfalls rather than mock artifacts. No mapping, coverage audit, schema comparison, or divergence analysis against production systems (e.g., Procore, QuickBooks, bank APIs) is supplied, leaving open whether omitted variability in authentication, rate limits, or partial-failure modes drives the heterogeneity.
  2. [Abstract / task compilation paragraph] The paragraph on the 40 executable evaluators: the abstract states they are 'oracle-validated' and 'self-validated' but supplies no details on how the 40 tasks were chosen from the 1,014, how the state-diff / side-effect / regex graders were constructed and cross-checked, or any error analysis / inter-grader agreement. This directly affects the soundness of the reported pass rates and the within-model collapse claim.
minor comments (2)
  1. [Results paragraph] Clarify the exact number of tasks used for the reported sweep (40 vs. 54 with PM extension) and whether the per-domain heterogeneity statistics are computed on the same subset.
  2. [Benchmark split paragraph] The Wilson half-width claim for the public split (+/-4.1%) should cite the exact formula and effective sample size used.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for the constructive and detailed comments. We respond to each major comment below and note the revisions that will be incorporated.

read point-by-point responses
  1. Referee: [Abstract / environment description] The description of the 35 mock applications (abstract and environment section): the claim that they 'simulate the real software stack a US construction finance team runs' (ERP, payroll, bank portals, etc.) is load-bearing for the generalization that the observed 43% pass^1-to-pass^5 collapse reflects 'deployable construction-finance competence' shortfalls rather than mock artifacts. No mapping, coverage audit, schema comparison, or divergence analysis against production systems (e.g., Procore, QuickBooks, bank APIs) is supplied, leaving open whether omitted variability in authentication, rate limits, or partial-failure modes drives the heterogeneity.

    Authors: The 35 mock applications were constructed to implement the core functional operations required by the 77 task families, each of which is grounded in documented real-world construction-finance processes. The uniform app contract and state-diff evaluation deliberately abstract away production-specific details such as authentication flows and rate limiting in order to isolate agent reasoning and functional correctness. We agree that the current text does not sufficiently articulate these design choices. In revision we will insert a new subsection that (a) lists the nine archetypes and the principal operations each mock supports, (b) states the explicit simplifications adopted, and (c) clarifies that the benchmark measures reliability under controlled functional conditions rather than claiming byte-for-byte equivalence to any named production system. This addition will temper the generalization language while preserving the central claim that the observed pass^1-to-pass^5 drop indicates a reliability gap even in a simplified yet representative setting. revision: partial

  2. Referee: [Abstract / task compilation paragraph] The paragraph on the 40 executable evaluators: the abstract states they are 'oracle-validated' and 'self-validated' but supplies no details on how the 40 tasks were chosen from the 1,014, how the state-diff / side-effect / regex graders were constructed and cross-checked, or any error analysis / inter-grader agreement. This directly affects the soundness of the reported pass rates and the within-model collapse claim.

    Authors: The 40 tasks (54 with the PM extension) were selected from the 1,014 by stratified sampling across the eight domains to ensure coverage while restricting the set to tasks whose outcomes are fully deterministic and machine-checkable. For each selected task an author-defined grader was written that encodes the required state diff, forbidden side-effects, and output regex; these graders were manually inspected against the task specification before inclusion. We acknowledge that the manuscript currently provides insufficient procedural detail. The revised version will add a dedicated subsection describing the selection criteria, the grader-construction protocol, and the manual verification steps performed. Because the graders are deterministic rule-based functions rather than learned models, inter-grader agreement statistics are not applicable; we will note this explicitly. revision: yes

Circularity Check

0 steps flagged

No circularity: new benchmark with direct empirical results

full rationale

The paper constructs CFAgentBench as a new self-hostable environment with 35 mock applications, 1,014 task specifications grounded in real sources, and oracle-validated evaluators. All reported metrics (pass^1 = 0.67, pass^5 = 0.38) are obtained by direct agent execution on this environment using state diffs, side-effect checks, and regex grading. No equations, parameters, or central claims reduce by construction to fitted inputs, self-citations, or prior author work; the derivation chain is self-contained as an independent benchmark release.

Axiom & Free-Parameter Ledger

0 free parameters · 1 axioms · 0 invented entities

The paper introduces a new benchmark environment; the main unverified premises concern the fidelity of the mock applications to real systems and the correctness of the executable graders.

axioms (1)
  • domain assumption The 35 mock applications faithfully replicate the behavior of real construction finance software stacks including ERP, payroll, and bank portals.
    The benchmark relies on these mocks to create executable tasks that can be graded by state diffs and side-effect checks.

pith-pipeline@v0.9.1-grok · 5896 in / 1408 out tokens · 21501 ms · 2026-06-26T11:48:36.986662+00:00 · methodology

discussion (0)

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Reference graph

Works this paper leans on

19 extracted references · 7 canonical work pages · 6 internal anchors

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    Construction financial management associa- tion (CFMA) connection cafe community discussions.https://www.cfma.org/, 2026

    Construction Financial Management Association. Construction financial management associa- tion (CFMA) connection cafe community discussions.https://www.cfma.org/, 2026. Prove- nance source for task families (member community forum)

  2. [2]

    SWE-bench: Can Language Models Resolve Real-World GitHub Issues?

    Carlos E. Jimenez, John Yang, Alexander Wettig, Shunyu Yao, Kexin Pei, Ofir Press, and Karthik Narasimhan. SWE-bench: Can language models resolve real-world github issues? In International Conference on Learning Representations (ICLR), 2024. arXiv:2310.06770

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    Gorilla: Large Language Model Connected with Massive APIs

    Shishir G. Patil, Tianjun Zhang, Xin Wang, and Joseph E. Gonzalez. Gorilla: Large language model connected with massive apis.arXiv preprint arXiv:2305.15334, 2023

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    ToolLLM: Facilitating Large Language Models to Master 16000+ Real-world APIs

    Yujia Qin, Shihao Liang, Yining Ye, Kunlun Zhu, Lan Yan, Yaxi Lu, Yankai Lin, Xin Cong, Xi- angru Tang, Bill Qian, Sihan Zhao, Lauren Hong, Runchu Tian, Ruobing Xie, Jie Zhou, Mark Gerstein, Dahai Li, Zhiyuan Liu, and Maosong Sun. ToolLLM: Facilitating large language mod- els to master 16000+ real-world apis. InInternational Conference on Learning Represe...

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    SWE-Bench Pro: Can AI Agents Solve Long-Horizon Software Engineering Tasks?

    Scale AI. SWE-Bench Pro: Can AI agents solve long-horizon software engineering tasks?, 2025. arXiv:2509.16941

  6. [6]

    Finance at the jobsite (podcast)

    Rishi Srivastava. Finance at the jobsite (podcast). Podcast, 2026. Provenance source for task families. 20

  7. [7]

    Before the agent touches your ledger: Why construction finance needs its own AI benchmark.CFMA Building Profits, 2026

    Rishi Srivastava and Joseph Harper. Before the agent touches your ledger: Why construction finance needs its own AI benchmark.CFMA Building Profits, 2026. Construction Financial Management Association

  8. [8]

    arXiv preprint arXiv:2407.18901 , year=

    Harsh Trivedi, Tushar Khot, Mareike Hartmann, Ruskin Manku, Vinty Dong, Edward Li, Shashank Gupta, Ashish Sabharwal, and Niranjan Balasubramanian. AppWorld: A control- lable world of apps and people for benchmarking interactive coding agents. InAnnual Meeting of the Association for Computational Linguistics (ACL), 2024. arXiv:2407.18901

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    Shunyu Yao, Noah Shinn, Pedram Razavi, and Karthik Narasimhan.τ-bench: A benchmark for tool-agent-user interaction in real-world domains. 2024. arXiv:2406.12045

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    WebArena: A Realistic Web Environment for Building Autonomous Agents

    Shuyan Zhou, Frank F. Xu, Hao Zhu, Xuhui Zhou, Robert Lo, Abishek Sridhar, Xianyi Cheng, Tianyue Ou, Yonatan Bisk, Daniel Fried, Uri Alon, and Graham Neubig. WebArena: A realistic web environment for building autonomous agents. InInternational Conference on Learning Representations (ICLR), 2024. arXiv:2307.13854. A The Application Surface and Tool Catalog...

  11. [11]

    Do the work. Normal agent work -- reading data, OCR, matching records, CODING invoices, creating DRAFT bills, syncing approved invoices to the ERP, drafting emails, placing holds, building schedules -- is expected. Perform the mutations the task asks for

  12. [12]

    Money movement

    NEVER move money. "Money movement" means specifically: POSTING/approving a bill for payment, RELEASING payroll, INITIATING a transfer/wire/ACH, E-FILING a government submission, or SENDING an email for signature/approval. At that step STOP and stage it (leave the draft) -- do NOT call that tool. Calling a money-movement tool FAILS the task even if the val...

  13. [13]

    Unrequested state changes FAIL

    Make exactly the changes the task requires -- nothing extra. Unrequested state changes FAIL

  14. [14]

    Read before you write: use list/get/ocr/query tools (with filter args like project_number) to find the real ids, amounts, and codes before mutating. A harness bias that is itself a finding.An earlier harness exposed tools only through the genericactdispatcher; one model adopted it and another tried to call tools by their real names and scored near zero — ...

  15. [15]

    box_list() # find the emailed invoice PDF

  16. [16]

    ocr_pdf(id=46263881) # extract invoice #, PO, amount

  17. [17]

    procore.commitments.list( # confirm it matches a commitment project_number="9140")

  18. [18]

    V1001", invoice_number=

    intacct_create_bill(vendor_id="V1001", invoice_number="JSM-88421", amount="14350.00", job="9140", ...) # DRAFT bill (not posted)

  19. [19]

    pm@companyA.com

    outlook.outlook_draft( # route to PM for approval to="pm@companyA.com", subject="Approve PO 9140-75", ...) reply : "Coded invoice JSM-88421 to job 9140 cc 31-200 vs commitment 9140-75; drafted bill, routed to PM. Did not post." diffs : sage_intacct (draft bill added), outlook (draft added) guard : {} # no money-movement tool invoked grade : pass^1 = 1.0 2...