SIERRA by Phantom Helix / Product Overview
Keep the working case coherent from first clue to handoff
In silence, patterns emerge.
SIERRA is a local-first desktop app for investigations where evidence, chronology, notes, and tool output need to stay in one traceable graph. The case starts on your machine and stays there by default.
Fictional scenario for demonstration purposes
Case Walkthrough
How a Case Moves Through SIERRA
A simple path from first fragment to preserved finding
01
Start with a Fragment
A screenshot, company name, handle, or domain can become the first node. Attach the evidence immediately so the case starts with provenance.
02
Connect Relationship and Time
Link people, accounts, infrastructure, and dates as they emerge. Time sits on the same graph, so sequence and relationship stay visible together.
03
Enrich Without Breaking the Case
Run local invokers in the workspace, add cloud execution only when needed, and hand off to Obsidian or AI tools when the case moves into writing or collaboration.
Workspace
What Stays Attached in SIERRA
The graph is the center of the work, not a place you summarize things after the real work happened somewhere else
Caseboard with Evidence Attached
Nodes, edges, Markdown, screenshots, and files stay in the same desktop workspace instead of bouncing between separate tools.
Time-Aware Graph
Time is first-class on nodes and edges, so sequence sits next to relationship rather than in a separate spreadsheet or timeline file.
Local First, Cloud When Needed
The core workflow starts on your machine. Add cloud execution only for the parts of the case that need remote tools or account services.
Fictional scenario for demonstration purposes
Invokers
Run local invokers in the workspace and add cloud invokers when a case needs remote execution.
MCP
Expose the live graph to AI assistants through the local MCP server when you want help inside the case context.
Obsidian
Export cases to an Obsidian vault and re-import SIERRA exports later when the work moves into writing or handoff.
Best Fit
Use SIERRA When the Shape of the Work Matters
SIERRA earns its keep when evidence, notes, relationships, and chronology need to stay coherent over time
OSINT / Threat Intel
When relationships, infrastructure, and sequence need to be visible together.
Fraud / Due Diligence
When partial identities, counterparties, and evidence need a coherent map instead of a spreadsheet plus chat history.
Investigative Research
When source notes, screenshots, and narrative threads need to stay connected while the story is still forming.
Start with the Desktop App
Download SIERRA, map one investigation locally, and add cloud execution only if the case actually needs it.
Need automation details? Read the invoker guide
Phantom Helix
In silence, patterns emerge.
OSINT tools for modern investigators and security professionals.
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