Decision intelligence for technical leaders.
Evaluate outcomes, track decisions, and build organizational learning — backed by 30+ frameworks, confidence-calibrated verdicts, and traceable evidence.
Join WaitlistUsed by CTOs, fractional leaders, and engineering teams making high-stakes technical decisions.
You shipped the change. But did it actually work?
You made the call. Migrated the database. Rewrote the service. Rolled out the new pipeline. Now you're staring at dashboards across three different tools, piecing together whether it was worth it.
- Latency looks better — but your CDN provider also pushed an update last Tuesday.
- Error rates dropped — but so did traffic, because marketing paused a campaign.
- Costs went up 30% — and nobody can agree whether the migration was responsible.
There's no system that connects the data to the decision and tells you: was it worth it?
Everything you need to make and measure technical decisions.
Quick Evaluate
Paste your before/after metrics and get an instant verdict with dual confidence scoring. Know whether your decision worked in seconds — and exactly how much to trust that answer. Verdict confidence tells you if metrics improved. Inference confidence tells you what caused it.

Decision Workshop
Structure complex decisions with stakeholder input, options analysis, and AI-guided framework application. Track each decision through its full lifecycle from draft to evaluated, with a complete audit trail.

Signal Collection
Import metrics from CSV, clipboard, webhooks, or inline entry. Auto-attachment scores signals against decisions using metric match, timestamp proximity, and text similarity. Build an evidence base that grows over time.

Insights Dashboard
Visualize decision health across your organization. Track evaluation rates, confidence trends, signal coverage, and quality scores. Spot patterns across decisions that you would miss looking at individual choices in isolation.

Built for depth, not just speed.
Quick Evaluate
Paste metrics, get a confidence-rated verdict in seconds. Dual scoring separates what happened from what caused it.
Decision Workshop
Structure decisions with options, stakeholder input, and framework-guided AI analysis. Full lifecycle tracking.
30+ Decision Frameworks
DDIA, Accelerate, Team Topologies, SWOT, Porter's Five Forces, and more. Each framework guides the AI analysis.
Signal Collection
CSV, clipboard, webhooks, inline entry. Auto-attachment scores signals against decisions by metric, time, and similarity.
Decision Intelligence Engine
Automated outcome evaluation with per-expectation verdicts, quality scores, pattern detection, and longitudinal learning.
Multi-Channel Access
Web app, MCP server (Claude Code, Cursor, Windsurf), CLI, Obsidian plugin, and REST API. Same intelligence, every surface.
Start with a paste. Go deeper only if you want to.
Paste
10 seconds
Drop in your metrics — before and after. No formatting required.
Verdict
3 seconds
Get an instant, dual-confidence evaluation with traceable signals.
Promote
30 seconds
Promote to a full decision record with context, frameworks, and history.
Intelligence
Continuous
Over time, patterns emerge across your decisions. Insights compound.
Most tools require you to build the system before you get value. CTOsphere gives you an answer in seconds and grows with you from there.
Built for technical leaders who make decisions under uncertainty.
Fractional CTOs & Consultants
Evaluate client decisions quickly. Show measurable impact. Build a portfolio of evidence-backed recommendations.
CTOs & VPs of Engineering
Track the ROI of architecture investments. Build organizational memory. Make the case to the board with data.
Staff Engineers & Tech Leads
Validate that your proposals worked. Build credibility with evidence. Spend less time defending decisions in meetings.
CTOsphere is not a dashboard. It's not a knowledge base. It's not a chatbot that guesses. It's a system that tells you whether your decisions actually worked — with confidence you can trust, evidence you can trace, and patterns that compound over time.