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abstract indexed · arXiv 2609.15066 · updated 2026-10-18

Salesforce Koa: An Enterprise Language Model for Agentic Tool Use

First page of Salesforce Koa: An Enterprise Language Model for Agentic Tool Use
From the original paper · arXiv 2609.15066Page 1. Select the image to read the PDF.

This method replaces prompt engineering and supervised fine-tuning for tool-use behavior with RL post-training (GRPO) on a 120B open-weight model, using rewards grounded in simulated multi-turn workflow tasks derived from declarative agent specifications. The cost is substantial: reinforcement-learning post-training of a 120B-parameter model, plus a simulation and reward-verification pipeline, is far beyond a single 24 GB GPU and requires dedicated training infrastructure. What can fail is reward misspecification—models can overfit to synthetic persona-conditioned simulations and tool-call success signals that do not match real production workflows, degrading general-purpose behavior.

For solo builders

A possible application for this research area. Paper-specific feasibility still needs a full-paper review.

An assistant chooses the wrong API or sends arguments your product cannot use.

What you would change

Apply the proposed tool-selection or argument-generation change in a sandbox.

Try the idea on your product

A proposed first test. Set your budget and success criteria before running it.

Apply the proposed tool-selection or argument-generation change in a sandbox.

Compare against

Your current agent with the same tool schemas and task budget.

  1. Locate the paper's implementation and check its license, model support, data needs, and hardware requirements. Stop here if you cannot obtain the required artifacts.
  2. Save a small set of representative product tasks and expected outcomes. Keep evaluation tasks out of any training or tuning, and choose quality and cost limits before running.
  3. Run the baseline and the proposed change on identical inputs. Keep other settings fixed and repeat paired runs to expose variation.
  4. Save per-task outputs, failures, timings, and all usage costs. Review regressions before expanding the test.

What to measure

Correct completed actions, invalid calls, retries, latency, and cost per completed task.

When to keep it

Keep the change only if it meets your preselected quality and latency limits and improves the metric you care about after setup and operating costs. Otherwise retain the baseline. This is an exploration plan, not a validated recommendation.

Download test plan ↓

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Do not allocate compute yet.

This page uses the abstract and public adoption signal only. Request the deep report before relying on its recommendation.

Abstract-level screening only. Risks and infrastructure may not have been evaluated. This recommendation is not a reproduced result.
minimum test setup
not reported
published evidence setup
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source-linked claims
0 of 2
exposure checks
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Why it was shortlisted

The technical change, research area, and reason it entered the archive.

recommendation
watch
research area
tool use
technical change
Specification-driven GRPO post-training for agentic tool use
published
2026-09-14

The training recipe is out of reach for constrained infrastructure, but the specification-to-simulation-to-reward design pattern is worth tracking as a template for evaluating and improving tool use with smaller models or API-based agents.

Central equations

Original equations, typeset for reading. Paperraft explanations connect the mechanism, its aim, and the evidence.

with a fixed truncation bound τ. With sequence-level aggregation the effective loss is

ℒGRPO(θ)=−1B∑i=1B1|yi|∑t=1|yi|wi,tAilogπθ(yi,t∣xi,yi,<t).

equation (8) · §Appendix E GRPO optimization details · loss function

where missing or malformed verdicts default to not resolved. The scalar reward applies a duplicate-call gate,

R={0,a consecutive duplicate tool call occurred,cov,otherwise,

equation (2) · §2 Methodology · proposed method

The reward is built from the coverage judge. The task intent is represented as numbered sub-questions, and the judge emits one resolved/not-resolved verdict per sub-question over the full transcript. The coverage rate is

cov=#​{sub-questions judged resolved}#​{sub-questions}∈[0,1],

equation (1) · §2 Methodology · metric

equations from arXiv HTML · fetched 2026-10-04

Claims and evidence

A claim is source-linked only when the PDF page and matching excerpt are available.

  1. claim 01Paperraft inference
    Read the brief interpretation

    This method replaces prompt engineering and supervised fine-tuning for tool-use behavior with RL post-training (GRPO) on a 120B open-weight model, using rewards grounded in simulated multi-turn workflow tasks derived from declarative agent specifications. The cost is substantial: reinforcement-learning post-training of a 120B-parameter model, plus a simulation and reward-verification pipeline, is far beyond a single 24 GB GPU and requires dedicated training infrastructure. What can fail is reward misspecification—models can overfit to synthetic persona-conditioned simulations and tool-call success signals that do not match real production workflows, degrading general-purpose behavior.

    This is a Paperraft inference. It is not pinned to a verified PDF passage.

    Inspect the source
  2. claim 02Paperraft inference

    Improves over the open-weight Nemotron-3-Super-120B base across public tool-use, agentic-reasoning, and CRM benchmarks, with clearest gains on multi-turn tool use, and surpasses a strong proprietary baseline while remaining below frontier models; no quantified factor is given in the abstract.

    This is a Paperraft inference. It is not pinned to a verified PDF passage.

    Inspect the source

Exposure map

Author findings, Paperraft interpretations, and the next check. Missing analysis never counts as evidence of safety.

quality

Still unknown

Which tasks improve, and which regress against the baseline?

compute and memory

Still unknown

What memory, hardware, and total compute does the complete method require?

latency

Still unknown

Are startup time, typical response time, and slow requests measured separately?

operations

Still unknown

What must be monitored, maintained, and rolled back?

software compatibility

Still unknown

Does the implementation support your model, runtime, and hardware?

security

Still unknown

What new data access, permissions, or trust boundaries does it introduce?

data and training

Still unknown

What data preparation or training is required, and is it included in the cost?

reproducibility

Still unknown

Are code, versions, inputs, and evaluation scripts available?

Continue the investigation

A reading guide for tool use.

Editorial prompts, not findings from this paper or a validated test plan. Detailed analysis is still pending for the topics below.

What to inspect

Which assumptions does the proposed method need, and where might your workload violate them?

Plan a fair comparison

Identify the baseline, metric, dataset, and experimental settings in the paper. Which can you match?

Questions for adoption

What implementation and evaluation artifacts are available, and what would you need to supply?

Read the paper with these questions

Inside the paper

Preview the first 3 pages of the original PDF. Click the stack to turn the page.

The downloadable skill includes SKILL.md and evidence.json, with recorded findings and unanswered checks. TRY-IT.md adds a product test plan and a blank results sheet.

A reading aid for your agent. Findings still need validation.

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Provisional research brief updated 2026-10-18. Paperraft has not reproduced this experiment.

Discuss this paper

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arXiv 2609.15066

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