AGENTIC HARNESS
The runtime layer that turns model capability into usable work.
The Agentic Harness is the substrate behind how work gets executed in SEQUESTO aOS. It governs tool use, function calling, memory, reasoning, observability, and runtime safety so each task is assembled around the user’s request instead of pushed through one static chain.

If the model layer provides intelligence, the harness turns that intelligence into a controlled runtime. It is the layer beneath James, not James himself.
TOOLING
Tool use and function calling.
The harness gives agents the ability to do real work across documents, knowledge, and connected systems. Structured tools and typed function calls keep those actions controllable instead of turning them into brittle prompt choreography.

STATE
Memory and reasoning.
Document-heavy work rarely happens in one step. The harness manages retained context, intermediate state, and reasoning flow so multi-step work stays coherent across extraction, drafting, review, and follow-up actions.

RUNTIME DESIGN
Runtime assembled per request.
A tender, a questionnaire, and a project review do not all need the same runtime path. The harness composes each run dynamically around the work at hand instead of forcing every task through the same fixed chain.

OBSERVABILITY
Observable, constrained, and distinct from Agent Force.
The clearest way to understand the difference is simple: the harness is the runtime, Agent Force is the specialist system that runs on top of it. Observability, tracing, and safety rails live here because this is the layer that governs how the work executes.

RELATED LAYERS
Explore what sits below the harness and what runs on top of it.
Multi-Model Intelligence
SEQUESTO runs most work on one primary model family and upgrades deliberately to the latest capable release. The architecture can evolve as models improve, but the priority is stability, quality, and consistency for the teams working on top of it.
Learn more →Agent Force
Agent Force is the specialist layer on top of the harness. James orchestrates the work, while specialist agents handle extraction, drafting support, review support, and document operations across tenders, questionnaires, and structured commercial work. The heavy lifting scales, but the final wording and approval stay human.
Learn more →Security & Governance
This layer is about proving what happened, controlling who can do what, and meeting enterprise security expectations without turning governance into a separate project. Traceability, usage visibility, access controls, SSO, ISO 27001, and SOC 2 Type II all support that goal.
Learn more →See the runtime behind the workflow.
Walk through how the harness assembles work, coordinates tools, and keeps agentic execution controlled inside SEQUESTO aOS.