Domain profile: graduated tech identity (primary stack → dependencies → detected → interests) - Content DNA: classifies content type (security advisory, release, tutorial, hiring, etc.) - Novelty detection: demotes introductory content, boosts new releases and security advisories - Role-aware scoring: security engineers see security content prominently; experience level adjusts tutorial/depth balance - Intent scoring: recent Git/file activity influences what surfaces - Knowledge gap detection: finds blind spots in your dependency understanding - Anti-gaming: title-body coherence, keyword concentration, adversarial resistance built into the pipeline

Sources — 20+ adapters, all running locally

- Hacker News, GitHub, Reddit, YouTube, arXiv, Stack Overflow - Lobsters, DEV.to, Product Hunt, Twitter/X, Bluesky, Hugging Face - Papers with Code, crates.io, npm, PyPI, Go modules - CVE/OSV vulnerability databases, custom RSS feeds

Analysis

- Signal chains: tracks evolving stories across sources - Semantic shift detection: notices when topics you follow are changing - Reverse mentions: finds where your projects are discussed - Project health radar: dependency freshness + security monitoring - Attention dashboard: where you spend time vs. where you should

Decision Intelligence

- Record and query architectural decisions across sessions - Tech radar: adoption signals from decisions + content trends - Decision enforcement: AI agents check alignment before suggesting changes

Agent Autonomy

- Cross-session, cross-agent persistent memory - Session briefs: tailored startup context for any AI tool - Delegation scoring: should the agent proceed or ask you? - Developer DNA: exportable tech identity profile (markdown, SVG, or shareable card)

MCP Integration — 14 tools for dependency security, intelligence, decisions, and agent memory

Plug your intelligence system directly into Claude Code, Cursor, Windsurf, VS Code (Copilot), or any MCP-compatible tool. ```bash npx @4da/mcp-server ``` 9 tools work standalone with zero setup (vulnerability scanning, dependency health, upgrade planning, ecosystem news, pre-task briefings, decision memory, agent memory). 5 more activate with the desktop app (scored content feed, actionable signals, knowledge gaps, feedback learning, developer DNA). Every tool reliably returns useful data. [Full tool reference.](mcp-4da-server/)

CLI

Reads from the same database as the desktop app. No extra setup. ```bash 4da briefing # Latest AI briefing 4da signals # All classified signals 4da signals --critical # Critical/high priority only 4da gaps # Knowledge gaps in your dependencies 4da health # Project dependency health 4da status # Database stats ```

--- ## Screenshots

Brief tab
Brief — today's top picks and live signal stream scored against your stack

Preemption Radar
Preemption — forward-looking intelligence: CVEs, breaking changes, dependency risks

Blind Spot Index
Blind Spots — coverage gaps and high-relevance items you never saw

Signal tab
Signal — the items that earn their place, confirmed through 2+ independent axes

--- ## Development 4DA is built by a solo engineer with AI-assisted development (Claude Co

4da Mcp Server

Tools