> ## Documentation Index
> Fetch the complete documentation index at: https://docs.openagents.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Signatures and Registry

> Typed contracts for model decisions and their runtime exposure.

## What Is a Signature

A signature is a typed input/output contract for a model call. In OpenAgents,
any decision that gates action should be expressed as a signature.

## Design Rules

* Inputs are **deterministic facts** (task, repo context, budgets, tool outputs)
* Outputs are **machine consumable** (enums, booleans, JSON)
* Decision signatures include **confidence** and are confidence-gated
* Outcomes are logged for replay and optimization

## Plan Mode Signatures (Current)

Plan mode signatures live in `crates/dsrs/src/signatures/plan_mode.rs` and are
exposed via the signature registry:

* TopicDecompositionSignature
* ParallelExplorationSignature
* PlanSynthesisSignature
* ComplexityClassificationSignature
* DeepPlanningSignature
* ResultValidationSignature

## Registry and UI Exposure

Autopilot Desktop exposes signature metadata via the in‑process registry and
WGPUI surfaces. Signature steps and results are rendered directly by the
desktop runtime.

## Why It Matters

Typed signatures make agent behavior inspectable, testable, and swappable. They
are the unit of optimization for DSPy and the core of the Guidance and Plan
Mode pipelines.