agentic-evidence-viewer

A drag-drop viewer for agent traces, receipts, policy decisions, and artifacts.

This repo lets a reviewer open a bundle and see:

• Integrity status (PASS/FAIL) with reasons
• Trace timeline and event details
• Policy decisions and required gates
• Artifact manifests and previews (safe types)
• Summary metrics (cost/latency/errors)

Bundle and receipt standards:

• agentic-receipts

Quick Start

cd apps/viewer
npm install
npm run dev

Then drag-drop a bundle from examples/bundles/.

Architecture

Bundle (dropped) → Parser → Verifier → Renderer
                              ↓
                    [schema + chain + signature]
                              ↓
                    Integrity Badge (PASS/FAIL)

Views

View	Description
Timeline	Chronological trace events with expandable details
Policy	Allow/deny decisions with rationale and policy hash
Artifacts	File explorer with safe previews (text/markdown/JSON)
Metrics	Cost, latency, error rates, tool call distribution
Integrity	Hash chain verification, signature status

Tech Stack

• SvelteKit — UI framework
• TypeScript — Type safety
• WASM verifier — Client-side hash chain and signature verification

Suite

This repo is part of the Agentic Evidence Suite:

• agentic-receipts (standard)
• agentic-trace-cli (tooling)
• agentic-artifacts (outputs)
• agentic-policy-engine (governance)
• agentic-eval-harness (scenarios)
• agentic-evidence-viewer (review UI)

License

MIT