The Agent Stack

Five layers.
One was missing.

The tools that power agent-native software development.

See how the Rosentic engine works →

Many products span multiple layers. This map groups each tool by its primary job in the workflow, not every capability it offers.

01
Orchestration
Run multiple agents in parallel. Manage workspaces, branches, and task assignment.
Conductor mac app Superset remote Claude Squad oss Kilo Code 3M+ users amux terminal
02
Coding Agents
Agents that write, refactor, review, and ship code. Includes single-PR review tools.
Claude Code anthropic Codex openai Copilot github Cursor editor Factory enterprise Devin cognition Greptile review CodeRabbit review
03
The missing layer
Integration-State Validation
PR validation checks one change in isolation. Integration-state validation checks whether that change is still safe combined with everything else that is about to land. Deterministic, 12 languages, code never leaves your infra.
Adjacent approaches include merge queues and speculative CI, but these validate sequentially after merge. Rosentic compares combinatorially before merge.
PR 1 PR 2 PR 3 PR 4 🌹 VERIFIED
Rosentic
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04
Merge & Deploy
Sequence, queue, and land changes safely. Ship to production.
GitHub Actions CI/CD Mergify queue Aviator queue Graphite stacked Vercel deploy
05
Observability
Monitor what shipped. Trace errors, performance, and incidents in production.
Honeycomb distributed Datadog enterprise Sentry errors Traversal AI SRE PostHog oss
Cross-cutting infrastructure
Model Routing
Route requests, manage keys, observe model usage.
Portkey LiteLLM Helicone
Sandbox & Runtime
Isolated execution environments for agent-generated code.
E2B Codespaces Gitpod
Security & Guardrails
Static analysis, dependency scanning, policy enforcement.
Semgrep Snyk

The missing layer

Every layer has multiple tools. Integration-state validation had none.

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